Camera system, communication method, signal processing device, and camera

Abstract

The camera system includes a camera having a wireless communication function and performing imaging, and a signal processing device having a wireless communication function and performing signal processing related to a video imaged by the camera, wherein the camera and the signal processing device are wirelessly connected.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a camera system, a communication method, a signal processing apparatus, and a camera. BACKGROUND

[0002] A camera system is used for various applications such as broadcasting. In such a camera system, a camera (CAM) and a signal processing apparatus such as a camera control unit (CCU) are connected in a wired manner through a camera cable or the like.

[0003] LIST OF CITATIONS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: JP 2001-292348 A

[0006] Patent Literature 2: JP 2011-234347 A SUMMARY

[0007] PROBLEMS

[0008] However, in the related art, the camera and the signal processing apparatus are connected in a wired manner through a camera cable or the like, and therefore, in order to prevent the camera cable or the like from being entangled, another person who performs a process related to the cable in addition to a camera operator is required. Further, the camera and the signal processing apparatus are connected in a wired manner to each other, and therefore, depending on the length or the like of the cable or the like, there is a limitation to the layout and the setting position of the camera. As described above, the camera system in the related art has many limitations (for example, installation of the camera), is a system to which many limitations are imposed on the user's use, and is not a highly convenient system. Therefore, it is desirable to improve the degree of freedom of camera installation.

[0009] Therefore, the present disclosure proposes a camera system, a communication method, a signal processing apparatus, and a camera that can improve the degree of freedom of camera installation.

[0010] SOLUTION TO THE PROBLEM

[0011] According to the present disclosure, a camera system includes a camera having a wireless communication function and configured to capture a video; and a signal processing apparatus having a wireless communication function and configured to perform signal processing related to the video captured by the camera, wherein the camera and the signal processing apparatus are wirelessly connected. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a diagram illustrating an example of a communication process according to a first embodiment of the present disclosure.

[0013] Figure 2 is a diagram illustrating a configuration example of a camera system according to the first embodiment of the present disclosure.

[0014] Figure 3 is a flowchart showing a processing example of a camera system according to the first embodiment.

[0015] Figure 4 is a diagram showing an example of an antenna arrangement of a signal processing device.

[0016] Figure 5 is a diagram showing an example of an antenna arrangement of a signal processing device.

[0017] Figure 6 is a diagram showing an example of an antenna arrangement of a signal processing device.

[0018] Figure 7 is a sequence diagram showing an example of a polling process according to the first embodiment.

[0019] Figure 8 is a diagram showing an example of a communication process using a main camera.

[0020] Figure 9 is a diagram showing an example of a camera system and a communication process according to the second embodiment of the present disclosure.

[0021] Figure 10 is a diagram showing an example of arranging 5G base stations in a stadium.

[0022] Figure 11 is a diagram showing an example of arranging 5G base stations in a stadium.

[0023] Figure 12 is a diagram showing an example of a camera system and a communication process according to the third embodiment of the present disclosure.

[0024] Figure 13 is a diagram showing an example of a camera system and a communication process according to the fourth embodiment of the present disclosure.

[0025] Figure 14 is a diagram showing a configuration example of a camera system according to the fifth embodiment of the present disclosure.

[0026] Figure 15 is a diagram showing an example of a communication process according to the fifth embodiment of the present disclosure.

[0027] Figure 16 is a diagram showing an example of an antenna arrangement of a signal processing device.

[0028] Figure 17 is a diagram showing an example of a camera system and a communication process according to the sixth embodiment of the present disclosure.

[0029] Figure 18 is a diagram showing an example of a camera system and a communication process according to the seventh embodiment of the present disclosure.

[0030] Figure 19 FIG. 8 is a diagram illustrating an example of a camera system and a communication process according to an eighth embodiment of the present disclosure.

[0031] Figure 20 FIG. 9 is a diagram illustrating an example of a camera system and a communication process according to a ninth embodiment of the present disclosure.

[0032] Figure 21 FIG. 10 is a sequence diagram illustrating a polling process in the related art.

[0033] Figure 22 FIG. 11 is a hardware configuration diagram illustrating an example of a computer that implements a function of a signal processing device. DETAILED DESCRIPTION

[0034] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Note that a camera system, a communication method, a signal processing device, and a camera according to the present application are not limited by the embodiments. In each of the following embodiments, the same parts are denoted by the same reference numerals, and redundant description will be omitted.

[0035] The present disclosure will be described in the following item order.

[0036] 1. First Embodiment

[0037] 1-1. Outline of Communication Process According to First Embodiment of the Present Disclosure

[0038] 1-1-1. Background and Effects, etc.

[0039] 1-1-2. First Wireless Communication and Second Wireless Communication

[0040] 1-1-2-1. Fifth Generation Mobile Communication System (5G)

[0041] 1-1-3. First Signal and Second Signal

[0042] 1-2. Configuration of Camera System According to First Embodiment

[0043] 1-2-1. Configuration of Signal Processing Device According to First Embodiment

[0044] 1-2-2. Configuration of Camera According to First Embodiment

[0045] 1-3. Communication Process According to First Embodiment

[0046] 1-4. Antenna Arrangement Example of Signal Processing Device

[0047] 1-4-1. First Arrangement Example (Front Arrangement)

[0048] 1-4-2. Second Arrangement Example (Rear Arrangement)

[0049] 1-4-3. Third arrangement example (separate arrangement)

[0050] 1-5. Polling processing

[0051] 1-5-1. Polling processing in related art

[0052] 1-5-2. Polling processing according to first embodiment

[0053] 1-6. Communication example in case of determining main camera

[0054] 2. Second embodiment

[0055] 2-1. Outline of camera system and communication processing according to second embodiment of the present disclosure

[0056] 2-2. 5G

[0057] 2-2-1. Example 1 of 5G

[0058] 2-2-2. Example 2 of 5G

[0059] 3. Third embodiment

[0060] 3-1. Outline of camera system and communication processing according to third embodiment of the present disclosure

[0061] 4. Fourth embodiment

[0062] 4-1. Outline of camera system and communication processing according to fourth embodiment of the present disclosure

[0063] 5. Fifth embodiment

[0064] 5-1. Configuration of camera system according to fifth embodiment of the present disclosure

[0065] 5-1-1. Configuration of signal processing device according to fifth embodiment

[0066] 5-2. Outline of communication processing according to fifth embodiment

[0067] 5-3. Antenna arrangement example of signal processing device

[0068] 6. Sixth embodiment

[0069] 6-1. Outline of camera system and communication processing according to sixth embodiment of the present disclosure

[0070] 7. Seventh embodiment

[0071] 7-1. Outline of camera system and communication processing according to seventh embodiment of the present disclosure

[0072] 8. Eighth embodiment

[0073] 8-1. Summary of camera system and communication processing according to the eighth embodiment of the present disclosure

[0074] 9. Ninth embodiment

[0075] 9-1. Summary of camera system and communication processing according to the ninth embodiment of the present disclosure

[0076] 10. Other embodiments

[0077] 10-1. Other configuration examples

[0078] 10-2. Others

[0079] 11. Effects according to the present disclosure

[0080] 12. Hardware configuration

[0081] [1. First embodiment]

[0082] [1-1. Overview of communication processing according to the first embodiment of the present disclosure]

[0083] Figure 1 is a diagram showing an example of communication processing according to the first embodiment of the present disclosure. Furthermore, Figure 1 is a diagram showing a configuration example of a camera system 1 according to the first embodiment of the present disclosure. The communication processing according to the first embodiment of the present disclosure is implemented by the camera system 1 shown in Figure 1 .

[0084] First, the configuration of the camera system 1 shown in Figure 1 will be described. The camera system 1 is a system including a signal processing device 100 (hereinafter also referred to as “CCU 100”) and a camera 200 (hereinafter also referred to as “CAM 200”). As shown in Figure 1 , the camera system 1 includes the CCU 100 and a plurality of CAMs 200. In the case of describing the CAMs 200-1 to 200-3 and the like without particular distinction, they are referred to as the CAM 200. Although Figure 1 a system camera for shooting a video for broadcast (e.g., television) is shown as an example of the CAM 200, details of the CAM 200 will be described later.

[0085] Figure 1 a configuration in which a plurality of CAMs 200 are connected to the CCU 100 (i.e., a configuration in which a camera and a CCU are connected in an N-to-1 manner), and a case in which the CCU 100 is a multi-connection CCU (M-CCU) is shown. In Figure 1In the example shown in FIG. 1, only three CAMs 200-1, 200-2, and 200-3 are shown, but the camera system 1 can include four or more CAMs 200. As described above, the number of cameras (CAMs 200) included in the camera system 1 is not limited to Figure 1 the three cameras shown and can be determined by, for example, a connectable number corresponding to a radio frequency band or the like.

[0086] Each of the CAMs 200 captures a video. Each of the CAMs 200 transmits the captured video (hereinafter also referred to as a “main line video”) to the CCU 100. Figure 1 The CCU 100 shown is a so-called camera control unit, and details of the CCU 100 will be described later. Each of the CAMs 200 transmits a signal of the captured video (main line video) (hereinafter also referred to as a “first signal”) to the CCU 100 through first wireless communication. Each of the CAMs 200 transmits the first signal (main line signal) to the CCU 100 through the first wireless communication indicated by the dashed line in FIG. 1. Figure 1 The first signal (main line signal) is, for example, a video signal for recording.

[0087] In addition, each of the CAMs 200 and the CCU 100 transmits a signal other than the first signal (hereinafter also referred to as a “second signal”) through wireless communication (hereinafter also referred to as “second wireless communication”) different from the first wireless communication. The second signal mentioned here is a signal different from the first signal that is a signal of the main line video, and is, for example, a signal for controlling the CAM 200 or the like, and details thereof will be described later. In this way, each of the CAMs 200 and the CCU 100 transmits and receives a signal other than the signal of the main line video (second signal) through the second wireless communication. Each of the CAMs 200 and the CCU 100 transmits and receives the second signal through the second wireless communication indicated by the dot-dash line in FIG. 1. Figure 1

[0088] In addition, the CAM 200 also transmits the second signal through the second wireless communication. As described above, the camera system 1 is a mesh network in which the CAMs 200 are also wirelessly connected to each other. In the example shown in FIG. 1, each of the CAMs 200 transmits and receives the second signal to and from the other CAMs 200 through the second wireless communication indicated by the dot-dash line. Figure 1

[0089] The first wireless communication for transmitting the main line video is wireless communication having a wide bandwidth, high reliability, and low latency. For example, the first wireless communication is communication satisfying at least one of a wider bandwidth than that of the second wireless communication, a higher reliability than that of the second wireless communication, or a lower latency than that of the second wireless communication.​​

[0090] In Figure 1 In the example illustrated, the first wireless communication is wireless communication by a fifth generation mobile communication system (hereinafter also referred to as "5G") (5G communication), and the second wireless communication is wireless communication by a fourth generation mobile communication system (hereinafter also referred to as "4G") (4G communication). As described above, in the camera system 1, the main line video is transmitted by the first wireless communication having higher speed and lower delay than the second wireless communication. Note that the above is one example, and the first wireless communication can be any communication as long as the first wireless communication satisfies at least one of a wider bandwidth than the bandwidth of the second wireless communication, higher reliability than the reliability of the second wireless communication, or lower delay than the delay of the second wireless communication. Details of this point will be described later. Figure 1

[0091] As described above, in the camera system 1, the communication between the CCU 100 and the CAM 200 is wireless communication, and the communication is performed using the first wireless communication for transmitting the main line video and using the second wireless communication for transmitting other information.

[0092] [1-1-1. Background and effects, etc.]

[0093] In the existing camera system, a wired connection through an optical composite cable is used between the camera and the signal processing device such as the CCU. The composite cable used in the wired connection is heavy in weight and thick in thickness, and thus is difficult to handle. In addition, due to the wired connection, the layout and the setting position of the camera are also limited depending on the cable length. Furthermore, when moving the camera, it is necessary to handle so that the composite cable does not become entangled. Therefore, in addition to the camera operator, a cable handler is also required, which also leads to a problem of increasing the operation cost at the time of imaging, which is difficult to prevent.

[0094] On the other hand, in the camera system 1, the CCU 100 and the CAM 200 are connected by wireless communication, and thus it is possible to solve the problem due to the priority connection as described above, and the degree of freedom of the camera installation is improved. As a result, in the camera system 1, it is possible to improve the convenience of the user who uses the camera system 1. Furthermore, in the camera system 1, the CCU 100 and the CAM 200 are connected by wireless, and a plurality of CAMs 200 can be controlled by one CCU 100. Furthermore, in the camera system 1, the camera and the CCU are wirelessly connected, the main line video is transmitted by the first wireless communication, and other information is transmitted by the second wireless communication. As described above, in the camera system 1, by separating the main line video system (first wireless communication) and the wireless system other than the main line video such as synchronization and command (second wireless communication), it is possible to reduce the interference of the two communications.

[0095] ​Further, in the camera system 1, by employing a mesh network in which the CAMs 200 are also wirelessly connected to each other in the configuration of the second wireless communication, a more stable connection can be ensured. Further, the wireless system other than the main line video (the second wireless communication) does not need a frequency band equivalent to that of the main line video system (the first wireless communication), so that the camera system 1 can perform the second wireless communication using a narrower frequency band than that of the first wireless communication.

[0096] [1-1-2. First wireless communication and second wireless communication]

[0097] As described above, the first wireless communication can be any communication as long as the communication satisfies at least one of a wider bandwidth, a higher reliability, or a lower delay than the second wireless communication.

[0098] For example, the first wireless communication can be any communication as long as a bandwidth of the communication is wider than a bandwidth of the second wireless communication. For example, the first wireless communication and the second wireless communication can be the same communication scheme, and the first wireless communication can have a wider bandwidth than the bandwidth of the second wireless communication. For example, the first wireless communication and the second wireless communication can be 4G communication.

[0099] [1-1-2-1. Fifth generation mobile communication system (5G)]

[0100] Further, for example, the first wireless communication and the second wireless communication can be 5G communication. For example, the camera system 1 can virtually slice (divide) a network using a technology related to network slicing. The camera system 1 can divide information to be transmitted according to a frequency band using a technology related to network slicing. For example, the camera system 1 can perform communication by setting a wider bandwidth than a bandwidth of the second wireless communication for the first wireless communication using a technology related to network slicing.

[0101] [1-1-3. First signal and second signal]

[0102] As described above, the first signal transmitted and received through the first wireless communication is the main line video. On the other hand, the second signal transmitted and received through the second wireless communication is various signals (information) other than the main line video. Examples of the second signal will be described below.

[0103] For example, the second signal is a signal related to imaging of the CAM 200. The second signal is a signal to be used for controlling the CAM 200. The second signal is a synchronization signal for synchronizing the CAM 200. The synchronization signal is, for example, a GENLOCK signal, and is a signal for causing a plurality of cameras (CAMs 200) to operate in synchronization with each other. For example, the synchronization signal is transmitted from a signal processing device such as the CCU 100 to the CAM 200.

[0104] The second signal is a signal (command signal) of a command for controlling the CAM 200. The command signal also includes a response of the CAM 200 to the CCU 100. The second signal is a control signal for controlling the diaphragm of the CAM 200, the white level and the black level of a video signal, the color tone, and the like. For example, the command signal for controlling the CAM 200 is transmitted from a signal processing device such as the CCU 100 to the CAM 200. For example, the response signal from the CAM 200 to the CCU 100 is transmitted from the CAM 200 to a signal processing device such as the CCU 100.

[0105] The second signal is a signal to be used for transmission of information between users using the camera system 1. The second signal is a signal of a video of which the resolution is lower than that of the main line video. The second signal is a signal of a RET image (RET image signal). The RET image signal is a video signal to be used by an operator (camera operator) of the CAM 200 to confirm an image and the like of a camera (CAM 200) other than the operator's own camera. The RET image does not need to have as high a resolution as the main line video. The RET image is a video of which the resolution is lower than that of the main line video. For example, the RET image is displayed on a viewfinder (VF) or the like of the CAM 200. For example, the RET image signal is transmitted from one CAM 200 to another CAM 200.

[0106] In the related art, the RET image is transmitted through the CCU, and thus, is transmitted through a path (path through the CCU) from the slave camera to the CCU and from the CCU to another camera. On the other hand, in the camera system 1, the CAM 200 (i.e., the camera) can directly communicate with each other, so that the RET image can be transmitted between the CAM 200 without using the path via the CCU.

[0107] The second signal is a voice signal of a user. The second signal is an INCOM signal (INCOM signal). The INCOM signal is a voice signal to be used by a user (e.g., a staff member) using the camera system 1 to talk to each other. For example, the INCOM signal is transmitted from a signal processing device such as the CCU 100 to the CAM 200. For example, the INCOM signal is transmitted from the CAM 200 to a signal processing device such as the CCU 100. For example, the INCOM signal is transmitted from one CAM 200 to another CAM 200. The INCOM signal is transmitted from one CAM 200 to another CAM 200 different from the one CAM 200.

[0108] The second signal is a signal to be used for transmitting information to the imaging subject by the CAM 200. The second signal is a signal to indicate the state of the CAM 200 to the imaging subject. The second signal is a tally signal. For example, the tally signal is a signal indicating which camera (CAM 200) is shooting a video of an imaging subject such as a performer. The tally signal is transmitted from a signal processing device such as the CCU 100 to the CAM 200, for example.

[0109] For example, during ON AIR or REC, the tally light (light emitting unit) of the CAM 200 is lit in red. For example, although the video is not used for ON AIR, the tally light (light emitting unit) of the CAM 200 is lit in green when the video is recorded. For example, in the case where the relay destination is different, the tally light (light emitting unit) of the CAM 200 is lit in yellow. Note that the above colors are examples, and the light emitting color is not limited to the above colors, and each color can represent various meanings.

[0110] The second signal is a signal to be used for transmitting information to the imaging subject by the CAM 200. The second signal is a signal to notify character information of the imaging subject. The second signal is a signal of a teleprompter (teleprompter signal). The teleprompter signal is a video signal for projecting a prompt card to an imaging subject such as a performer. The teleprompter does not need to have as high a resolution as the main line video. The teleprompter is a video having a lower resolution than the main line video. The teleprompter signal is transmitted from a signal processing device such as the CCU 100 to the CAM 200, for example. The teleprompter signal is continuously transmitted during ON AIR, for example.

[0111] Note that the above is an example, and the first signal and the second signal can be appropriately set depending on the use or application of the camera system 1. In other words, depending on the use and application of the camera system 1, the first signal and the second signal can include any type of signal.

[0112] [1-2. Configuration of camera system according to first embodiment]

[0113] The camera system 1 shown in Figure 2 will be described. As Figure 2 shown, the camera system 1 includes the CCU 100 and the CAM 200. The CAM 200 and the CCU 100 are wirelessly connected via a predetermined communication network (network) so as to be able to perform communication with each other. Figure 2 is a diagram showing an example of the configuration of the camera system according to the first embodiment. Note that Figure 2 The camera system 1 shown in Figure 1 may include a plurality of CAMs 200 and a plurality of CCUs 100. For example, Figure 2The camera system 1 illustrated in FIG. 1 includes three CAMs 200. Further, the camera system 1 is not limited to the CCU 100 and the CAM 200, and can include various components. Details of these points will be described later.

[0114] The CCU 100, also referred to as a camera control unit, is an information processing apparatus for performing control related to a camera. Further, the CCU 100 is a signal processing apparatus having a wireless communication function and performing signal processing related to a video captured by a camera. For example, the CCU 100 communicates with a camera and supplies power and a reference signal to the camera. Further, for example, the CCU 100 receives a signal from a camera, performs processing on the received signal, and outputs a signal in a predetermined format. For example, the CCU 100 has a function of controlling an aperture of a camera, a white level and a black level of a video signal, a color tone, and the like. For example, the CCU 100 transmits a control signal for controlling an aperture of a camera, a white level and a black level of a video signal, a color tone, and the like to the camera.

[0115] The CCU 100 has a wireless communication function and performs signal processing related to a video captured by the CAM 200. The CCU 100 is wirelessly connected to the CAM 200. The CCU 100 communicates a first signal, which is a signal of a video captured by the CAM 200, with the CAM 200 through first wireless communication. The CCU 100 receives the signal of the video captured by the CAM 200 from the CAM 200 through the first wireless communication.

[0116] The CCU 100 communicates a second signal, which is other than the first signal, with the CAM 200 through second wireless communication different from the first wireless communication. The CCU 100 transmits and receives the second signal, which is other than the first signal, to and from the CAM 200 through the second wireless communication.

[0117] The CCU 100 communicates with the CAM 200 through first communication that satisfies at least one of a condition of a wider bandwidth than a bandwidth of the second wireless communication, a condition of a higher reliability than a reliability of the second wireless communication, or a condition of a lower delay than a delay of the second wireless communication. The CCU 100 communicates the second signal with the CAM 200 through the second wireless communication that is 4G communication, and communicates the first signal with the CAM 200 through the first wireless communication that is 5G communication.

[0118] The CCU 100 communicates with the CAM 200 a signal related to imaging of the CAM 200. The CCU 100 communicates with the CAM 200 a signal to be used for controlling the CAM 200. The CCU 100 communicates with the CAM 200 a signal of a synchronization signal of another CAM 200 or a command for controlling the CAM 200.

[0119] The CCU 100 communicates with the CAM 200 a signal to be used for information transmission between users using the camera system 1. The CCU 100 communicates with the CAM 200 a signal of video having a resolution lower than that of video (main line video) captured by the CAM 200 or a signal of voice of a user. The CCU 100 communicates with the CAM 200 a RET image signal or an INCOM signal.

[0120] The CCU 100 communicates with the CAM 200 a signal to be used for information transmission to a subject of imaging of the CAM 200. The CCU 100 communicates with the CAM 200 a signal to indicate a state of the CAM 200 to the subject of imaging or a signal of character information to be notified to the subject of imaging. The CCU 100 communicates with the CAM 200 a banner signal or a chopper signal.

[0121] The CCU 100 communicates with a plurality of CAMs 200 through first wireless communication and second wireless communication. The CCU 100 identifies a manufacturer of the CAM 200 when wirelessly connected to the CAM 200. The CCU 100 receives information for identifying the manufacturer of the CAM 200 from the CAM 200. For example, the CCU 100 requests the information for identifying the manufacturer of the CAM 200 from the CAM 200.

[0122] The CAM 200 is a camera that captures video. For example, the CAM 200 is a system camera used for capturing video for broadcast (e.g., television). For example, the CAM 200 is a system camera used for a photographic studio, a sports arena, or the like. The CAM 200 has a wireless communication function and functions as a camera that captures video.

[0123] The CAM 200 is wirelessly connected to the CCU 100. The CAM 200 communicates with the CCU 100 a first signal that is a signal of video captured by the CAM 200 through first wireless communication. The CAM 200 transmits the signal of video captured by the CAM 200 to the CCU 100 through the first wireless communication.

[0124] The CAM 200 communicates with the CCU 100 a second signal other than the first signal through second wireless communication different from the first wireless communication. The CAM 200 transmits and receives the second signal other than the first signal to and from the CCU 100 through the second wireless communication.

[0125] The CAM 200 performs communication with the CCU 100 through a first communication that satisfies at least one of the following conditions: a bandwidth wider than that of a second wireless communication, a reliability higher than that of the second wireless communication, or a latency lower than that of the second wireless communication. The CAM 200 communicates a second signal with the CCU 100 through the second wireless communication that is a 4G communication, and communicates a first signal with the CCU 100 through the first wireless communication that is a 5G communication.

[0126] The CAM 200 communicates with the CCU 100 a signal related to imaging of the CAM 200. The CAM 200 communicates with the CCU 100 a signal to be used for controlling the CAM 200. The CAM 200 communicates with the CCU 100 a synchronization signal for realizing synchronization with another CAM 200 or a signal of a command for controlling the CAM 200.

[0127] The CAM 200 communicates with the CCU 100 a signal to be used for transmitting information between users using the camera system 1. The CAM 200 communicates with the CCU 100 a video signal of which resolution is lower than a video (main line video) captured by the CAM 200 or a voice signal of a user. The CAM 200 communicates with the CCU 100 a RET image signal or an INCOM signal.

[0128] The CAM 200 communicates with the CCU 100 a signal to be used for transmitting information to an imaging subject of the CAM 200. The CAM 200 communicates with the CCU 100 a signal for indicating a state of the CAM 200 to the imaging subject or a signal of character information to be notified to the imaging subject. The CAM 200 communicates with the CCU 100 a notice signal or a prompter signal.

[0129] The CAM 200 communicates with another CAM 200 through a second wireless communication. The CAM 200 transmits information for identifying a manufacturer of the CAM 200 to the CCU 100. The CAM 200 transmits the information for identifying the manufacturer of the CAM 200 to the CCU 100 while being wirelessly connected to the CCU 100. For example, the CAM 200 transmits the information for identifying the manufacturer of the CAM 200 to the CCU 100 in response to a request for the information for identifying the manufacturer of the CAM 200 from the CCU 100.

[0130] [1-2-1. Configuration of signal processing device according to first embodiment]

[0131] Next, the configuration of the CCU 100 according to the first embodiment will be described. Note that, Figure 2 Only the configuration related to the communication processing between the components of the CCU 100 is shown.

[0132] As Figure 2 shown, the CCU 100 includes a transmission signal processing unit 110, a video signal processing unit 120, a control signal processing unit 130, a video input / output I / F unit 140, a control signal I / F unit 150, and an antenna unit 160 (see Figure 4 ).

[0133] The transmission signal processing unit 110 functions as a communication unit that transmits and receives signals. The transmission signal processing unit 110 functions as a wireless communication unit that performs wireless communication with a camera that captures a video.

[0134] The transmission signal processing unit 110 is realized by, for example, a network interface card (NIC), a communication circuit, or the like. The transmission signal processing unit 110 transmits and receives signals (information) to and from the CAM 200 through wireless communication. Furthermore, the transmission signal processing unit 110 can be connected to a predetermined network in a wired or wireless manner, and can transmit and receive information to and from other devices or the like via the predetermined network. The transmission signal processing unit 110 receives signals from the CAM 200. The transmission signal processing unit 110 receives a video (signal) from the CAM 200.

[0135] The transmission signal processing unit 110 controls communication. The transmission signal processing unit 110 controls communication with other devices such as the CAM 200. The transmission signal processing unit 110 controls communication with an external information processing device. The transmission signal processing unit 110 controls communication with the CAM 200.

[0136] Note that, in the case of communication with other cameras that perform communication in a wired manner, the CCU 100 can have a connector portion for wired connection with a camera. The CCU 100 is connected to a camera in a wired manner by connecting a camera cable or the like connected to the camera to the connector portion. In this case, the transmission signal processing unit 110 controls communication with a camera connected through a camera cable or the like through the connector portion. Note that the camera cable here can be various cables such as an optical composite cable, a fiber cable, and a twisted pair cable.

[0137] The CCU 100 includes a storage unit. The storage unit is realized by, for example, a semiconductor memory element such as a random access memory (RAM) and a flash memory, or a storage device such as a hard disk and an optical disk. The storage unit stores various information. The storage unit stores various information to be used for signal processing.

[0138] The video signal processing unit 120 is implemented by, for example, a central processing unit (CPU), a micro processing unit (MPU), or the like that executes a program (for example, a signal processing program related to a video) stored in the CCU 100 using a random access memory (RAM) or the like as a work area. Further, the video signal processing unit 120 can be implemented by, for example, an integrated circuit such as an application specific integrated circuit (ASIC) and a field programmable gate array (FPGA).

[0139] The video signal processing unit 120 performs various signal processing. The video signal processing unit 120 performs signal processing related to a video. The video signal processing unit 120 functions as a signal processing unit that performs signal processing related to a video captured by a camera. The video signal processing unit 120 performs signal processing related to a video in accordance with a control signal.

[0140] The video signal processing unit 120 performs video signal processing (image processing) on a signal received by the transmission signal processing unit 110. The video signal processing unit 120 performs various video signal processing. The video signal processing unit 120 performs video signal processing on a signal and generates a signal of a predetermined format. For example, the video signal processing unit 120 performs processing related to demosaicing. For example, the video signal processing unit 120 performs processing related to noise removal. For example, the video signal processing unit 120 performs processing related to gamma correction. For example, the video signal processing unit 120 performs processing related to brightness adjustment. For example, the video signal processing unit 120 performs processing related to adjustment of white balance. For example, the video signal processing unit 120 performs processing related to gain adjustment.

[0141] Note that the above is an example, and the video signal processing unit 120 is not limited to the above and performs various video signal processing. For example, the video signal processing unit 120 can perform a part of the video signal processing to be performed by the CAM 200 (the video signal processing unit 220).

[0142] The control signal processing unit 130 is implemented by, for example, a CPU, an MPU, or the like that executes a program (for example, a signal processing program related to a control) stored in the CCU 100 using a RAM or the like as a work area. Further, the control signal processing unit 130 can be implemented by an integrated circuit such as an ASIC or an FPGA.

[0143] The control signal processing unit 130 performs signal processing related to control. The control signal processing unit 130 performs signal processing related to control of the CAM 200. The control signal processing unit 130 performs signal processing related to control of the CCU 100. Further, the control signal processing unit 130 performs signal processing related to control of the camera. The control signal processing unit 130 generates a control signal (control information) for controlling the camera. The control signal processing unit 130 performs signal processing related to control of the CAM 200. The control signal processing unit 130 generates a control signal for controlling the CAM 200.

[0144] The control signal processing unit 130 generates a signal of a command for controlling the camera. The control signal processing unit 130 generates a control signal for adjusting the aperture of the camera.

[0145] The control signal processing unit 130 controls the CAM 200 by transmitting a control signal to the CAM 200 via the transmission signal processing unit 110. The control signal processing unit 130 controls the camera by transmitting a control signal to the camera via the transmission signal processing unit 110. The control signal processing unit 130 outputs a control signal to the CAM 200 via the transmission signal processing unit 110.

[0146] Note that the above is an example, and the control signal processing unit 130 is not limited to the above and performs various control signal processing. For example, the control signal processing unit 130 can perform a part of the control signal processing to be performed by the CAM 200 (control signal processing unit 230).

[0147] The control signal processing unit 130 can be integrated with the video signal processing unit 120. For example, the video signal processing unit 120 and the control signal processing unit 130 can be implemented by the same processor.

[0148] The video input / output I / F unit 140 has a function as an input / output interface related to video. The video input / output I / F unit 140 is an interface for connecting the CCU 100 and other information processing devices. The CCU 100 communicates information related to video, such as a video signal, with other information processing devices via the video input / output I / F unit 140. The communication of the video input / output I / F unit 140 can be wired communication or wireless communication. For example, the CCU 100 transmits information related to video, such as a video signal, to other information processing devices via the video input / output I / F unit 140. For example, the video input / output I / F unit 140 is connected to a switcher and transmits information about video, such as a video signal, to the switcher. Further, the video input / output I / F unit 140 can be connected to a storage device (database) and store information about video, such as a video signal, in the storage device.

[0149] Note that the video input / output I / F unit 140 can have a function of displaying a graphical user interface (GUI) such as a menu, a button, and a cursor on a display (a display screen), for example. Further, the video input / output I / F unit 140 can receive a user's video-related input through an interface such as a display, a keyboard, and a mouse. In this case, for example, the CCU 100 receives data from an input device such as a keyboard and a mouse via the video input / output I / F unit 140.

[0150] The control signal I / F unit 150 has a function as an interface of a control signal. The control signal I / F unit 150 is an interface for connecting the CCU 100 and another information processing device. The CCU 100 communicates information related to control, for example, a control signal, with another information processing device via the control signal I / F unit 150. The communication of the control signal I / F unit 150 can be wired communication or wireless communication. For example, the CCU 100 receives information related to control, for example, a control signal, from another information processing device via the control signal I / F unit 150. For example, the control signal I / F unit 150 is connected to a switch and receives information related to control, for example, a control signal, from the switch.

[0151] Note that the control signal I / F unit 150 can have a function of displaying a graphical user interface (GUI) such as a menu, a button, and a cursor on a display (a display screen). Further, the control signal I / F unit 150 can receive an input related to a user's control through an interface such as a display, a keyboard, and a mouse. In this case, for example, the CCU 100 receives data from an input device such as a keyboard and a mouse via the control signal I / F unit 150.

[0152] The antenna unit 160 has a function of transmitting and receiving radio waves. The antenna unit 160 radiates a signal output from the transmission signal processing unit 110 as a radio wave into space. Further, the antenna unit 160 converts a radio wave in space into a signal and outputs the signal to the transmission signal processing unit 110. Note that the arrangement of the antenna unit 160 will be described later.

[0153] [1-2-2. Configuration of camera according to first embodiment]

[0154] Next, the configuration of the CAM 200, which is an example of a camera according to the first embodiment, will be described. Note that, Figure 2Only the configuration related to the communication processing between the components of the CAM 200 is shown. For example, in the configuration of the CAM 200, the description for moving the physical components of the CAM 200 will be omitted. Further, the physical components for adjusting optical members such as a lens, a focus of the optical members, a zoom, an aperture, and the like will also be omitted.

[0155] As shown in Figure 2 The CAM 200 includes a transmission signal processing unit 210, a video signal processing unit 220, a control signal processing unit 230, a video input / output I / F unit 240, and an imaging element 250.

[0156] The transmission signal processing unit 210 functions as a communication unit that transmits and receives signals. The transmission signal processing unit 210 functions as a wireless communication unit that performs wireless communication between signal processing devices that perform video-related signal processing.

[0157] The transmission signal processing unit 210 is implemented by, for example, a NIC, a communication circuit, or the like. The transmission signal processing unit 210 transmits and receives signals (information) to and from the CCU 100 through wireless communication. Further, the transmission signal processing unit 210 can be connected to a predetermined network in a wired or wireless manner, and can transmit and receive information to and from other devices and the like via the predetermined network.

[0158] The transmission signal processing unit 210 controls communication. The transmission signal processing unit 210 controls communication with other devices such as the CCU 100. The transmission signal processing unit 210 controls communication between external information processing devices. The transmission signal processing unit 210 controls communication with the CCU 100. The transmission signal processing unit 210 transmits a video (signal) captured by the imaging element 250 to the CCU 100. The transmission signal processing unit 210 receives a control signal from the CCU 100. For example, the transmission signal processing unit 210 receives a control signal for controlling an aperture of the camera, a white level and a black level of a video signal, a color tone, and the like from the CCU 100.

[0159] The CAM 200 includes a storage unit. The storage unit is implemented by, for example, a semiconductor memory element such as a RAM and a flash memory, or a storage device such as a hard disk and an optical disk. The storage unit stores various information. The storage unit stores various information to be used for signal processing.

[0160] The video signal processing unit 220 is implemented by, for example, a CPU, an MPU, or the like that executes a program (for example, a video-related signal processing program) stored in the CAM 200 by using a RAM or the like as a work area. Further, the video signal processing unit 220 can be implemented by, for example, an integrated circuit such as an ASIC and an FPGA.

[0161] The video signal processing unit 220 performs various signal processing. The video signal processing unit 220 performs signal processing related to a video. The video signal processing unit 220 performs signal processing related to a video captured by the imaging element 250. The video signal processing unit 220 performs signal processing related to a video in accordance with a control signal.

[0162] The video signal processing unit 220 performs video signal processing (image processing) on a video (a signal) captured by the imaging element 250. The video signal processing unit 220 performs various video signal processing. The video signal processing unit 220 performs signal processing related to a video in accordance with a control signal from the CCU 100. For example, the video signal processing unit 220 performs processing of adjusting a white level and a black level of a video signal. Further, for example, the video signal processing unit 220 performs processing of adjusting a color tone.

[0163] Note that the above is an example, and the video signal processing unit 220 is not limited to the above and performs various video signal processing. For example, the video signal processing unit 220 can perform a part of the video signal processing to be performed by the CCU 100 (the video signal processing unit 120).

[0164] The control signal processing unit 230 is realized by, for example, a CPU, an MPU, or the like that executes a program (for example, a signal processing program related to control) stored in the CCU 100 by using a RAM or the like as a work area. Further, the control signal processing unit 230 can be realized by an integrated circuit such as an ASIC and an FPGA.

[0165] The control signal processing unit 230 performs signal processing related to control. The control signal processing unit 230 performs signal processing related to control of the CAM 200. The control signal processing unit 230 controls the CAM 200 using control information. The control signal processing unit 230 receives a control signal from the CCU 100 via the transmission signal processing unit 210 and controls the CAM 200 using the received control information. The control signal processing unit 230 controls an aperture of the CAM 200 using a control signal received from the CCU 100. The control signal processing unit 230 controls an aperture of the CAM 200 using a control signal for adjusting a camera aperture received from the CCU 100. For example, the control signal processing unit 230 uses a control signal to instruct a component for adjusting an optical member such as a lens to perform adjustment corresponding to the control signal.

[0166] Note that the above is an example, and the control signal processing unit 230 is not limited to the above and performs various control signal processing. For example, the control signal processing unit 230 can perform a part of the control signal processing performed by the CCU 100 (control signal processing unit 130).

[0167] The control signal processing unit 230 can be integrated with the video signal processing unit 220. For example, the video signal processing unit 220 and the control signal processing unit 230 can be implemented by the same processor.

[0168] The video input / output I / F unit 240 has a function as an input / output interface related to a video. The video input / output I / F unit 240 is an interface for connecting the CAM 200 and other information processing apparatuses. The video input / output I / F unit 240 can have a similar function to the video input / output I / F unit 140.

[0169] The imaging element 250 functions as an imaging unit that captures a video. Note that the imaging unit can include an optical member such as a lens, an adjustment mechanism that performs adjustment with respect to focus, zoom, and aperture of the optical member, and the like. The imaging element 250 converts an image into an electric signal.

[0170] For example, a complementary metal-oxide semiconductor (CMOS) image sensor is used as the imaging element 250. Note that the imaging element 250 is not limited to the CMOS image sensor, and various image sensors such as a charge-coupled device (CCD) image sensor can be used.

[0171] The CAM 200 includes an antenna unit. The antenna unit has a function of transmitting and receiving radio waves. The antenna unit radiates a signal output from the transmission signal processing unit 210 as a radio wave into space. Further, the antenna unit converts a radio wave in space into a signal and outputs the signal to the transmission signal processing unit 210.

[0172] For example, the antenna unit is arranged behind the CAM 200. For example, the antenna unit is arranged at a position facing the imaging element 250. For example, the antenna unit is arranged in a direction opposite to a direction in which the imaging element 250 faces. For example, the antenna unit is arranged on a side opposite to a side on which the imaging element 250 is arranged. For example, the antenna unit is arranged on a rear side opposite to a front side on which the imaging element 250 is arranged.

[0173] [1-3. Communication processing procedure according to the first embodiment]

[0174] Next, a process according to the first embodiment will be described with reference to Figure 3 [1-4. Process according to the first embodiment] Figure 3 is a flowchart illustrating an example of a process of a camera system according to the first embodiment.

[0175] As Figure 3 shown, the CAM 200 performs imaging (step S101). For example, the CAM 200 captures a video by the imaging element 250. Then, the CAM 200 transmits the captured video to the CCU 100. The CAM 200 transmits the video to the CCU 100 by the first wireless communication.

[0176] The CCU 100 performs signal processing related to the video (step S102). The CCU 100 performs signal processing on the video acquired from the CAM 200.

[0177] [1-4. Antenna arrangement example of signal processing apparatus]

[0178] The antenna of the CCU 100 as the signal processing apparatus can be arranged in various ways. This point will be described with reference to Figures 4 to 6 . Note that the CCU 100 can be in a use form arranged at a predetermined position, or can be in a portable (portable) use form.

[0179] [1-4-1. First arrangement example (front arrangement)]

[0180] First, a first arrangement example of the antenna will be described with reference to Figure 4 . Figure 4 is a diagram showing an example of the antenna arrangement of the signal processing apparatus.

[0181] In Figure 4 the example, the antenna unit 160 of the CCU 100 is arranged at the front side of the CCU 100. The antenna unit 160 of the CCU 100 is arranged at the front surface FF side of the main body portion 101 of the CCU 100. In the case where the CCU 100 is housed in a shelf or the like, the antenna unit 160 of the CCU 100 is arranged at the front surface FF side arranged at the front surface side of the shelf or the like. For example, in the case where the CCU 100 is housed in a shelf or the like, the antenna unit 160 of the CCU 100 is arranged at the front surface FF side arranged to face the front of the shelf. The main body portion 101 of the CCU 100 is a chassis (housing) that houses components (for example, a processor and a memory) that realize the transmission signal processing unit 110, the video signal processing unit 120, the control signal processing unit 130, the video input / output I / F unit 140, the control signal I / F unit 150, the storage unit, and the like.

[0182] [1-4-2. Second arrangement example (rear arrangement)]

[0183] Next, a second arrangement example of the antenna will be described with reference to Figure 5 . Figure 5is a diagram illustrating an example of an antenna arrangement of a signal processing apparatus.

[0184] In Figure 5 In the example of the CCU 100, the antenna unit 160 of the CCU 100 is arranged at the rear side of the CCU 100. The antenna unit 160 of the CCU 100 is arranged at the rear surface RF side of the main body portion 101 of the CCU 100. In a case where the CCU 100 is housed in a shelf or the like, the antenna unit 160 of the CCU 100 is arranged at the rear surface RF side of the rear surface side of the shelf or the like. For example, in a case where the CCU 100 is housed in a shelf or the like, the antenna unit 160 of the CCU 100 is arranged at the rear surface RF side of the rear side arranged toward the shelf.

[0185] [1-4-3. Third arrangement example (separate arrangement)]

[0186] Next, a third arrangement example of an antenna will be described with reference to Figure 6 Figure 6 is a diagram illustrating an example of an antenna arrangement of a signal processing apparatus. In the third arrangement example, the antenna is arranged separately from a main body portion of the signal processing apparatus.

[0187] Figure 6 The CCU 100 of the present embodiment includes a main body portion 101 that performs signal processing, and an antenna unit 160 that is separate from the main body portion 101 and performs wireless communication with the CAM 200. For example, the CCU 100 includes a separate portion 170 that is connected to the main body portion 101 by a cable WR in a wired manner. For example, the cable WR can be various cables such as an optical composite cable, a fiber cable, and a twisted pair cable. The antenna unit 160 is arranged in the separate portion 170 of the CCU 100 so that the antenna unit 160 can be arranged at a position separate from the main body portion 101. As a result, in the CCU 100 of the present embodiment, the degree of freedom of the antenna arrangement can be improved. Figure 6

[0188] [1-5. Polling processing]

[0189] Polling processing in a camera system will be described.

[0190] [1-5-1. Polling processing in related art]

[0191] First, the flow of polling processing in a camera system in the related art will be described with reference to Figure 21 Figure 21 is a sequence diagram illustrating polling processing in the related art.

[0192] The system 5 in the related art is a camera system in the related art including a CCU 51 as a signal processing apparatus in the related art and a CAM 52 as a camera in the related art.​​​

[0193] In Figure 21 which the CCU 51 confirms the CAM connection state (step S501). For example, the CCU 51 confirms the connection state to the CAM 52. Then, the CAM 52 responds to the CCU 51 that the connection is normal (step S502). For example, the CAM 52 transmits information indicating that the connection with the CCU 51 has been established. The processing shown in steps S501 to S502 is a connection confirmation polling processing, and in the related art, data is shuttled once between the CAM and the CCU.

[0194] Further, the CCU 51 confirms the CAM connection state (step S503). For example, the interval between step S501 and step S503 corresponds to a polling interval t p . Figure 21 A case in which the confirmation of the CAM connection state by the CCU 51 in step S503 is not transmitted to the CAM 52 is shown.

[0195] In Figure 21 which the polling interval t p elapsed corresponds to a timeout period t w . For example, as shown in the processing PS51, in a case in which the wireless connection is disconnected, the polling signal does not appear, and thus, the CAM 52 performs the timeout processing. The CAM 52 performs the reconnection processing after the timeout. In Figure 21 which the CAM 52 requests the reconnection processing (step S504). For example, the CAM 52 requests the reconnection processing after the timeout.

[0196] The CCU 51 returns a processing response to the reconnection request to the CAM 52, as shown in the processing PS52. The CCU 51 returns the reconnection result to the CAM 52 (step S505). Figure 21 In which the reconnection period t r corresponds to a period from when the reconnection processing request is issued to when a response to the reconnection result is received (reconnection period).

[0197] For example, in a case of an NG response, an error is displayed on the display unit on the CAM 52 side. Further, in a case in which the reconnection is completed, the processing returns to the beginning of the polling sequence, as shown in the processing PS53. For example, in Figure 21 which the processing returns to step S501, and the processing is repeated. In a case in which the connection is disconnected immediately after the CAM 52 resumes the normal connection, the time required for the recovery is the longest. The shortest recovery period T in a case in which the wireless connection on the CAM 52 side is disconnected is “t p +t w +t r ”.

[0198] As described above, in the related-art system 5, polling is performed from the host (CCU 51) side to the client (CAM 52) side. In other words, in the related-art system 5, the polling sequence starts from the host (CCU 51) side, which causes round trips of data required for polling and consumes radio frequency bands. Whether or not the CAM 52 side is wirelessly connected can be determined only by the presence or absence of a response to polling, and therefore, the CCU 51 needs to confirm the presence or absence of a reconnection request from the CAM 52.

[0199] [1-5-2. Polling process according to first embodiment]

[0200] In contrast to the polling process in the related art as described above, in the camera system 1, the CAM 200 starts confirming the wireless connection state between the CAM 200 and the CCU 100. In other words, in the camera system 1, connection is made from the CAM 200 side (client side). In the polling process according to the first embodiment, reconnection is automatically performed from the client (CAM 200).

[0201] This will be described with reference to Figure 7 . Figure 7 is a sequence diagram illustrating an example of the polling process according to the first embodiment. The flow of the polling process according to the first embodiment will be described below. Note that the description of points similar to those in Figure 21 will be omitted as appropriate.

[0202] The CAM 200 transmits (returns) a connection normal to the CCU 100 (step S1). For example, the CAM 200 transmits information indicating that the connection with the CCU 100 has been established. In the case where the wireless connection is normal, the CAM 200 side does not need to know the state of the CCU 100, and therefore, the CAM 200 unilaterally transmits a normal state to the CCU 100 side. As a result, the camera system 1 can prevent an increase in the amount of data (data traffic) at the time of polling.

[0203] The CAM 200 transmits information indicating a connection normal to the CCU 100 (step S2). For example, the interval between step S1 and step S2 corresponds to a polling interval t p . Figure 7This illustrates a scenario where the connection information indicated by CAM 200 as normal in step S2 is not sent to CCU 100. For example, as shown in processing PS1, in the event of a wireless connection loss, CAM 200 determines that the connection to the CCU 100 side is broken and performs reconnection processing. This eliminates the need for timeout processing because camera system 1 does not wait for a polling response from the CCU 100 side. For example, the interval between steps S2 and S3 (the period of processing PS1) can be set to a very short period (essentially 0).

[0204] CAM 200 performs reconnection processing (step S3). CAM 200 requests reconnection processing. For example, in the case of a wireless connection loss, CAM 200 determines that the connection to the CCU 100 side is lost and immediately performs reconnection processing.

[0205] CCU 100 returns a processing response to the reconnection request to CAM 200, as shown in processing PS2. CCU 100 returns the reconnection result to CAM 200 (step S4). Figure 7 The reconnection period t in r This corresponds to the time period from when the reconnection request is issued to when the response of the reconnection result is received (reconnection period).

[0206] For example, in the case of an NG response, an error is displayed on the display unit on the CAM 200 side. Furthermore, upon completion of reconnection, as shown in PS3, processing returns to the beginning of the polling sequence. For example, in Figure 7 In the process, the process returns to step S1 and repeats. The longest recovery time is when CAM 52 disconnects immediately before it restores normal connection. The shortest recovery period T in the case of a wireless connection loss on the CAM 200 side is "t". p +t r ".

[0207] like Figure 7 As shown, in camera system 1, CAM 200 begins by confirming the wireless connection status between CAM 200 and CCU 100. For example, in camera system 1, if the wireless connection on the CCU 100 side is lost and no polling occurs, a connection request is sent from the CCU 100 side to the CAM 200 side. Therefore, in camera system 1, when the CAM 200 side receives a connection request from the CCU 100 side, the processing only needs to transition from a polling operation to a connection response sequence, and then return to the polling operation after returning the response.

[0208] As described above, in the camera system 1, by starting the polling sequence from the CAM 200 side (client side), it is possible to prevent an increase in the amount of data round trip (data traffic). Further, in the camera system 1, it is possible to shorten the recovery period on the CAM 200 side by starting the polling sequence from the CAM 200 side (client side). For example, it is unrealistic for the operator of the CAM 200 (camera operator) to perform the work of reconnection with the CCU 100. Further, it is unrealistic to perform similar work on the CCU 100 side (studio or the like). In the camera system 1, it is possible to appropriately perform the reconnection work without performing such work.

[0209] [1-6. Communication example in case of determining master camera]

[0210] In the case where there are a plurality of cameras (CAM 200) as in the example of Figure 1 , an operation mode of determining a master camera can be employed. This will be described with reference to Figure 8 . Figure 8 is a diagram showing an example of communication processing using a master camera. Note that the description of points similar to those in Figure 1 will be omitted.

[0211] In the case of the operation mode of determining a master camera, the camera system 1 includes one master camera and cameras other than the master camera (hereinafter also referred to as "slave cameras"). In this case, for example, the CCU 100 transmits a control signal common to a plurality of CAMs 200 to one master camera among the plurality of CAMs 200. The one master camera among the plurality of CAMs 200 transmits the control signal to the other CAMs 200 (a plurality of slave cameras).

[0212] Figure 8 The example of Figure 8 illustrates a case where the CAM 200-2 is a master camera. In this case, for example, the CCU 100 transmits a control signal of a common setting or the like common to a plurality of CAMs 200 to the CAM 200-2 which is a master camera. The CCU 100 transmits the control signal common to a plurality of CAMs 200 to the CAM 200-2 by the communication CM1 in

[0213] Then, the CAM 200-2 which is a master camera transmits the control signal received from the CCU 100 to the CAM 200-1 and the CAM 200-3 which are other CAMs 200 (a plurality of slave cameras). The CAM 200-2 transmits the control signal to the CAM 200-1 and the CAM 200-3 by the communication CM2 and the communication CM3, respectively. Figure 8The communication CM2 in the communication CM2 transmits the control signal received from the CCU 100 to the CAM 200-1. For example, the CAM 200-2 transmits the control signal of the CAM 200-1 received from the CCU 100 to the CAM 200-1. The CAM 200-2 transmits the control signal of the CAM 200-3 received from the CCU 100 to the CAM 200-3. In Figure 8 In the example of the camera system 1, the camera system 1 can also transmit information to the CAM 200-1 and the CAM 200-3 via the CAM 200-2 as the master camera.

[0214] As described above, in the determination of the operation mode of the master camera, in the case where the common setting of each camera is performed from the CCU, the camera system 1 can perform the common setting by the master camera. As a result, the camera system 1 can improve the utilization efficiency of the radio frequency band. Note that the determination of the operation mode of the master camera is one example of the operation mode, and for example, in the case where there is no problem in the radio frequency band, the camera system 1 can broadcast and set the common setting without determining the master camera.

[0215] [2. Second Embodiment]

[0216] Note that the system configuration and the communication mode of the camera system are not limited to the above-described first embodiment, and various system configurations and communication modes can be employed. This will be described below.

[0217] In the above-described first embodiment, the case where the CCU 100 and the CAM 200 directly communicate with each other has been described, but a communication mode via another device (equipment) can be employed. In the second embodiment, a camera system 1A in which the CCU 100 and the CAM 200 communicate with each other via a base station will be described. Note that the description of the points similar to the first embodiment will be omitted as appropriate.

[0218] [2-1. Outline of Camera System and Communication Processing According to Second Embodiment of the Present Disclosure]

[0219] The outline of the camera system and the communication processing according to the second embodiment will be described with reference to Figure 9 Figure 9 is a diagram showing an example of the camera system and the communication processing according to the second embodiment of the present disclosure. The configuration of the camera system 1A shown in Figure 9 As shown in Figure 9 The camera system 1A includes the CCU 100 and a plurality of CAMs 200. Figure 9 A case where a wireless base station is inserted between the CAM 200 and the CCU 100 is shown.

[0220] ​In the camera system 1A, the first wireless communication is performed by the base station 300-1 as the first base station. The base station 300-1 is a device that provides a wireless communication service to each device of the camera system 1A. The base station 300-1 is a wireless base station for communication between devices of the camera system 1A. For example, the base station 300-1 is a base station that provides a wireless communication service by the first wireless communication. In the camera system 1A, the first wireless communication between the CAM 200 and the CCU 100 is performed via the base station 300-1 as the first base station.

[0221] In the camera system 1A, the second wireless communication is performed by the base station 300-2 as the second base station. The base station 300-2 is a device that provides a wireless communication service to each device of the camera system 1A. The base station 300-2 is a wireless base station for communication between devices of the camera system 1A. For example, the base station 300-2 is a base station that provides a wireless communication service by the second wireless communication. In the camera system 1A, the second wireless communication between the CAM 200 and the CCU 100 is performed via the base station 300-2 as the second base station.

[0222] Note that when the base station 300-1 and the base station 300-2 are described without being particularly distinguished, they will be referred to as the base station 300. Although only two base stations 300-1 and 300-2 are illustrated in Figure 9 However, there can be three or more base stations 300. The camera system 1A can include the base station 300. Furthermore, the first base station that performs the first wireless communication and the second base station that performs the second wireless communication can be integrated. For example, the base station 300-1 and the base station 300-2 can be integrated.

[0223] [2-2.5G]

[0224] As described above, the camera system can be configured using 5G-related technology. For example, the camera system can have a system configuration using a base station that provides 5G communication (also referred to as a "5G base station"). This will be described with reference to Figure 10 and Figure 11 . Figure 10 and Figure 11 are diagrams that show an example in which a 5G base station is arranged in a stadium. Note that the description of points similar to those of the camera system 1 and the camera system 1A described above will be omitted as appropriate.

[0225] [2-2-1.5G Example 1]

[0226] First, 5G Example 1 will be described with reference to Figure 10 As described above, the camera system can be configured using 5G-related technology. For example, the camera system can have a system configuration using a base station that provides 5G communication (also referred to as a "5G base station"). This will be described with reference to Figure 10As shown, the camera system 1Aa includes the CCU 100, the CAM 200, the cloud 500, and the OBVAN 600. The cloud 500 is a server device (cloud server) or the like for providing a cloud service, and has a function of communicating with the CCU 100. The cloud 500 provides a service using information received from the CCU 100, and transmits information to other devices. Further, the OBVAN 600 is a car, that is, a so-called outside broadcast van, equipped with equipment for recording and transmitting live video, and has a function of communicating with the CCU 100.

[0227] In Figure 10 In the example shown, the CCU 100, the CAM 200, and the 5G base station 300-5 are arranged in the stadium SD, which is a stadium. As described above, Figure 10 The case where the 5G base station 300-5 is installed in the stadium SD is shown. Note that, in Figure 10 In the example shown in FIG. 1A, the case where the CCU 100, the CAM 200, and the 5G base station 300-5 are arranged in the stadium SD is shown. However, the place where the CCU 100, the CAM 200, and the 5G base station 300-5 are arranged is not limited to the stadium SD, and can be located within other structures such as a concert hall and a building.

[0228] Meanwhile, the cloud 500 and the OBVAN 600 are arranged outside the stadium SD. The cloud 500, the OBVAN 600, and the like arranged outside the stadium SD can be referred to as "external devices". Note that the external devices arranged outside the stadium SD are not limited to the cloud 500 and the OBVAN 600, and can include any device as long as the device can communicate with a device (for example, the CCU 100) in the stadium SD.

[0229] In Figure 10 In the camera system 1Aa, wireless communication is performed using device-to-device (D2D) communication, in which resources are secured by the 5G base station 300-5 installed in the stadium SD. In the camera system 1Aa, communication using D2D communication is performed in the stadium SD. Communication using D2D communication is performed between the CAMs 200 arranged in the stadium SD. Further, communication using D2D communication is performed between the CCU 100 and each of the CAMs 200 arranged in the stadium SD. For example, direct communication is performed between each of the CAMs 200 and the CCU 100 and between the CAMs 200 without passing through the 5G base station 300-5.

[0230] For example, return (RET) video and audio signals are transmitted and received between each CAM 200 and the CCU 100 and between the CAMs 200 by using the D2D communication. For example, second signals are transmitted and received between each CAM 200 and the CCU 100 and between the CAMs 200 using the D2D communication. For example, each CAM 200 transmits first signals to the CCU 100 by the D2D communication.

[0231] Further, in the camera system 1Aa, Figure 10 the devices within the stadium SD and the devices outside the stadium SD (external devices) communicate through a base station or a core network (core network). For example, the devices within the stadium SD and the devices outside the stadium SD (external devices) perform communication via a base station other than the 5G base station 300-5 or the 5G base station 300-5.

[0232] In the camera system 1Aa, Figure 10 the CCU 100 transmits and receives various signals (information) to and from external devices such as the cloud 500 and the OB VAN 600 through the communication CM21 in Figure 11 For example, live video and the like are communicated between the CCU 100 and external devices such as the cloud 500 and the OB VAN 600 via a base station or a core network (core network).

[0233] [2-2-2. Example 2 of 5G]

[0234] Next, Example 2 of 5G will be described with reference to Figure 10 Note that the description of points similar to those in Figure 11 will be omitted as appropriate. For example, Figure 10 differs from Figure 11 in that communication between the CAM 200 and the CCU 100 is performed through a base station or a core network (core network).

[0235] In the camera system 1Ab, Figure 11 wireless communication inside and outside the stadium SD is performed through a 5G base station or a core network installed in the stadium SD. In the camera system 1Ab, Figure 11 communication in the stadium SD is performed via the 5G base station 300-5. Communication between the CAMs 200 arranged in the stadium SD is performed via the 5G base station 300-5. Further, communication between each CAM 200 arranged in the stadium SD and the CCU 100 is performed via the 5G base station 300-5.

[0236] For example, return (RET) video and audio signals are transmitted and received between each CAM 200 and the CCU 100 and between the CAMs 200 via the 5G base station 300-5. For example, second signals are transmitted and received between each CAM 200 and the CCU 100 and between the CAMs 200 via the 5G base station 300-5. For example, each CAM 200 transmits first signals to the CCU 100 via the 5G base station 300-5.

[0237] Further, in the camera system 1Ab, Figure 11 the devices within the stadium SD and the devices outside the stadium SD (external devices) communicate through a base station or a core network (core network). For example, the devices within the stadium SD and the devices outside the stadium SD (external devices) perform communication via the 5G base station 300-5 or a base station other than the 5G base station 300-5.

[0238] In the camera system 1Ab, Figure 11 the CCU 100 transmits and receives various signals (information) to and from external devices such as the cloud 500 and the OBVAN 600 through the communication CM21 in Figure 12 For example, live video and the like are communicated between the CCU 100 and external devices such as the cloud 500 and the OBVAN 600 via a base station or a core network (core network).

[0239] [3. Third Embodiment]

[0240] Although in the first embodiment and the second embodiment, the system configuration using one CCU 100 has been described, a plurality of CCUs 100 can be provided. In the third embodiment, a camera system 1B including a plurality of CCUs 100 will be described. Note that the description of points similar to those of the first embodiment and the second embodiment will be omitted as appropriate.

[0241] [3-1. Outline of Camera System and Communication Processing According to Third Embodiment of the Present Disclosure]

[0242] The outline of the camera system and the communication processing according to the third embodiment will be described with reference to Figure 12 Figure 12 is a diagram illustrating an example of the camera system and the communication processing according to the third embodiment of the present disclosure. As Figure 12 indicated, the camera system 1B includes a plurality of CCUs 100 and a plurality of CAMs 200. In the case where the CCU 100-1 to the CCU 100-3 and the like are described without being particularly distinguished, they are referred to as the CCU 100.

[0243] In the camera system 1B, Figure 12 ​In the illustrated camera system 1B, a configuration in which one CAM 200 is connected to one CCU 100, that is, a configuration in which the camera and the CCU are connected one-to-one is shown. The CCU 100 according to the third embodiment differs from the CCU 100 according to the first embodiment and the CCU 100 according to the second embodiment in terms of communication with one CAM 200.

[0244] In Figure 12 the example, the CCU 100-1 is wirelessly connected to the CAM 200-1. The CAM 200-1 transmits a signal of the main line video (first signal) to the CCU 100-1 through the first wireless communication. The CCU 100-1 receives the first signal from the CAM 200-1 through the first wireless communication. The CAM 200-1 transmits a signal other than the first signal (second signal) to the CCU 100-1 through the second wireless communication. The CCU 100-1 receives the second signal from the CAM 200-1 through the second wireless communication.

[0245] In Figure 12 the example, the CCU 100-2 is wirelessly connected to the CAM 200-2. The CAM 200-2 transmits a signal of the main line video (first signal) to the CCU 100-2 through the first wireless communication. The CCU 100-2 receives the first signal from the CAM 200-2 through the first wireless communication. The CAM 200-2 transmits a signal other than the first signal (second signal) to the CCU 100-2 through the second wireless communication. The CCU 100-2 receives the second signal from the CAM 200-2 through the second wireless communication.

[0246] In Figure 13 the example, the CCU 100-3 is wirelessly connected to the CAM 200-3. The CAM 200-3 transmits a signal of the main line video (first signal) to the CCU 100-3 through the first wireless communication. The CCU 100-3 receives the first signal from the CAM 200-3 through the first wireless communication. The CAM 200-3 transmits a signal other than the first signal (second signal) to the CCU 100-3 through the second wireless communication. The CCU 100-3 receives the second signal from the CAM 200-3 through the second wireless communication.

[0247] [4. Fourth Embodiment]

[0248] A camera system can have a system configuration in which components are divided into a plurality of groups. In the fourth embodiment, a camera system 1C including a plurality of groups including a CCU 100 and a CAM 200 will be described. Note that the description of points similar to those of the first to third embodiments will be omitted as appropriate.

[0249] [4-1. Overview of camera system and communication processing according to fourth embodiment of the present disclosure]

[0250] Figure 13 The illustrated camera system 1C includes a group GP1 including one CCU 100-1 and two CAMs 200-1 and 200-2, and a group GP2 including one CCU 100-2 and two CAMs 200-3 and 200-4. In the camera system 1C, components are grouped for each CCU 100 in the same system.

[0251] In Figure 13 the example, the CCU 100-1 is wirelessly connected to the CAM 200-1 and the CAM 200-2. The CAM 200-1 and the CAM 200-2 transmit signals of the main line video (first signals) to the CCU 100-1 through the first wireless communication. The CCU 100-1 receives the first signals from the CAM 200-1 and the CAM 200-2 through the first wireless communication. The CCU 100-1 receives second signals from the CAM 200-1 and the CAM 200-2 through the second wireless communication. The CAM 200-1 and the CAM 200-2 transmit and receive the second signals through the second wireless communication. The CAM 200-1 transmits signals other than the first signals (second signals) to the CCU 100-1 and the CAM 200-2 through the second wireless communication. The CAM 200-2 transmits signals other than the first signals (second signals) to the CCU 100-1 and the CAM 200-1 through the second wireless communication.

[0252] In Figure 14 the example, the CCU 100-2 is wirelessly connected to the CAM 200-3 and the CAM 200-4. The CAM 200-3 and the CAM 200-4 transmit signals of the main line video (first signals) to the CCU 100-2 through the first wireless communication. The CCU 100-2 receives the first signals from the CAM 200-3 and the CAM 200-4 through the first wireless communication. The CCU 100-2 receives second signals from the CAM 200-3 and the CAM 200-4 through the second wireless communication. The CAM 200-3 and the CAM 200-4 transmit and receive the second signals through the second wireless communication. The CAM 200-3 transmits signals other than the first signals (second signals) to the CCU 100-2 and the CAM 200-4 through the second wireless communication. The CAM 200-4 transmits signals other than the first signals (second signals) to the CCU 100-2 and the CAM 200-3 through the second wireless communication.

[0253] The CCU 100 stores information for identifying cameras belonging to the same group as the group of the CCU 100 (e.g., camera IDs, etc.) in the storage unit. The CCU 100 stores information for identifying cameras connectable to the CCU 100 (camera IDs) in the storage unit. The CCU 100 determines whether to allow connection of the CAM 200 requesting connection based on the comparison result between the camera IDs stored in the storage unit and the camera ID of the CAM 200 requesting connection. Thus, in the case where the camera (CAM 200-3) of the group GP2 makes a connection to the CCU 100-1 of the group GP2, the CCU 100-1 rejects the connection. For example, in the case where the camera (CAM 200-3) of the group GP2 makes a connection to the CCU 100-1 of the group GP2, the CCU 100-1 rejects the connection of the CAM 200-3 because the camera ID of the CAM 200-3 is not included in the camera IDs allowed to connect to the CCU 100-1.

[0254] As described above, even in the case where the CAM 200 of a different group requests connection to the CCU 100, the camera system 1C can reject the connection at the CCU 100 side. For example, in a system camera, a different camera number (camera ID, etc.) is always assigned to each camera so that it is possible to appropriately determine whether to allow connection by managing the camera number at the CCU side. For example, in the case where the CAM 200 having a camera number different from the camera number managed by the CCU 100 requests connection, the CCU 100 rejects the connection.

[0255] In each example, a mesh network is used for control signals such as synchronization signals, commands, announcements, and INCOMs, and RET images. As a result, even in the case where the connection between one camera (CAM 200) and the signal processing device (CCU 100 or the like) is disconnected, signals can be communicated via another camera (CAM 200). As described above, the camera (CAM 200) and the signal processing device (CCU 100 or the like) that are disconnected can communicate signals via another camera (CAM 200), which improves reliability. In this case, a situation in which two or more cameras are provided is also conceivable, in which case the delay caused thereby can become a problem. However, by limiting communication via routing by setting the number of hops of Internet Protocol (IP) technology or the like, it is possible to reduce the likelihood that the delay will become a problem. For example, by setting the number of hops such that the delay is within an allowable range, for example, the delay is equal to or less than a predetermined threshold value, it is possible to reduce the likelihood that the delay will become a problem. Furthermore, the cameras (CAM 200) are wirelessly connected to each other such that, when INCOMs and RET images are exchanged between camera operators, it is not necessary to pass through the signal processing device (CCU 100 or the like). Thus, the radio frequency band between the cameras and the signal processing device (CCU 100 or the like) can be used efficiently.

[0256] [5. Fifth Embodiment]

[0257] A camera system can include other devices in addition to the CCU 100 and the CAM 200. In the fifth embodiment, a camera system 2 that includes a signal processing device 400 (hereinafter also referred to as “BPU 400”) in addition to the CCU 100 and the CAM 200 will be described. For example, in the camera system 2, operation is performed in a state in which the BPU 400 is interposed between the CCU 100 and the CAM 200. Note that the description of points similar to those of the first to fourth embodiments will be omitted as appropriate.

[0258] [5-1. Configuration of Camera System According to Fifth Embodiment of the Present Disclosure]

[0259] First, the configuration of the camera system 2 including the BPU 400 will be described with reference to Figure 14 The configuration of the camera system 2 including the BPU 400 will be described. Figure 14 is a diagram that shows an example of the configuration of a camera system according to the fifth embodiment of the present disclosure.

[0260] As Figure 14As illustrated, the camera system 2 includes the CCU 100, the CAM 200, and the BPU 400. The BPU 400 and the CCU 100 are wirelessly communicable via a predetermined communication network (network). Further, the BPU 400 and the CAM 200 are wirelessly communicable via a predetermined communication network (network). As described above, the camera system 2 differs from the camera systems in the first to fourth embodiments in that the BPU 400 communicates with the CCU 100 and the CAM 200. Note that, Figure 15 The camera system 2 illustrated can include a plurality of CAMs 200, a plurality of CCUs 100, and a plurality of BPUs 400. For example, Figure 14 An example of the camera system 2 illustrated in the fifth embodiment is shown in FIG. 10. Figure 14 The camera system 2 illustrated includes a case where three CAMs 200 are included.

[0261] The CCU 100 according to the fifth embodiment differs from the CCU in the first to fourth embodiments in terms of communication with the BPU 400.

[0262] The transmission signal processing unit 110 according to the fifth embodiment functions as a communication unit that communicates with the BPU 400. The transmission signal processing unit 110 is connected to a predetermined network in a wired or wireless manner and transmits and receives information to and from the BPU 400 via the predetermined network. The CCU 100 according to the fifth embodiment can be connected to the BPU 400 in a wired manner.

[0263] The CAM 200 according to the fifth embodiment differs from the CAM in the first to fourth embodiments in terms of communication with the BPU 400.

[0264] The transmission signal processing unit 210 according to the fifth embodiment functions as a wireless communication unit that wirelessly communicates with the BPU 400, which is a signal processing device that performs signal processing related to a video.

[0265] The transmission signal processing unit 210 is implemented by, for example, a NIC, a communication circuit, or the like. The transmission signal processing unit 210 transmits and receives signals (information) to and from the BPU 400 through wireless communication. The transmission signal processing unit 210 controls communication with other devices such as the BPU 400. The transmission signal processing unit 210 controls communication with the BPU 400. The transmission signal processing unit 210 transmits a video (signal) captured by the imaging element 250 to the BPU 400. The transmission signal processing unit 210 receives a control signal from the BPU 400. For example, the transmission signal processing unit 210 receives a control signal for controlling an aperture of the camera, a white level and a black level of a video signal, a color tone, and the like from the BPU 400.

[0266] The BPU 400, also referred to as a baseband processor unit, is an information processing apparatus for performing control related to a camera. The BPU 400 is connected to the camera and the CCU and performs color adjustment and the like. The BPU 400 is a signal processing apparatus having a wireless communication function and performing signal processing related to a video captured by the camera. For example, the BPU 400 performs wireless communication with the camera. For example, the BPU 400 transmits a control signal for controlling an aperture of the camera, a white level and a black level of a video signal, a color tone, and the like to the camera. For example, the BPU 400 performs gamma correction and demosaicing processing.

[0267] The BPU 400 has a wireless communication function and performs signal processing related to a video captured by the CAM 200. The BPU 400 is wirelessly connected to the CAM 200. The BPU 400 communicates a first signal that is a signal of a video captured by the CAM 200 with the CAM 200 through first wireless communication. The BPU 400 receives the signal of the video captured by the CAM 200 from the CAM 200 through the first wireless communication.

[0268] The BPU 400 communicates a second signal other than the first signal with the CAM 200 through second wireless communication different from the first wireless communication. The BPU 400 transmits and receives the second signal other than the first signal to and from the CAM 200 through the second wireless communication.

[0269] The BPU 400 communicates with the CAM 200 through first communication that satisfies at least one of a wider bandwidth than a bandwidth of the second wireless communication, a higher reliability than a reliability of the second wireless communication, or a lower delay than a delay of the second wireless communication. The BPU 400 communicates the second signal with the CAM 200 through the second wireless communication (4G communication) and communicates the first signal with the CAM 200 through the first wireless communication (5G communication).

[0270] The BPU 400 communicates with the CAM 200 a signal related to imaging of the CAM 200. The BPU 400 communicates with the CAM 200 a signal to be used for controlling the CAM 200. The BPU 400 communicates with the CAM 200 a synchronization signal with another CAM 200 or a command signal for controlling the CAM 200.

[0271] The BPU 400 communicates with the CAM 200 a signal to be used for transmission of information between users using the camera system 1. The BPU 400 communicates with the CAM 200 a signal of a video having a resolution lower than a video (main line video) captured by the CAM 200 or a signal of a voice of a user. The BPU 400 communicates with the CAM 200 a RET image signal or an INCOM signal.

[0272] The BPU 400 communicates with the CAM 200 a signal for transmitting information to the imaging subject of the CAM 200. The BPU 400 communicates with the CAM 200 a signal for indicating a state of the CAM 200 to the imaging subject or a signal of character information to be notified to the imaging subject. The BPU 400 communicates with the CAM 200 an advertisement signal or a prompter signal.

[0273] The BPU 400 communicates with a plurality of CAMs 200 through the first wireless communication and the second wireless communication. The BPU 400 identifies a manufacturer of the CAM 200 when wirelessly connected with the CAM 200. The BPU 400 receives information for identifying the manufacturer of the CAM 200 from the CAM 200. For example, the BPU 400 requests the information for identifying the manufacturer of the CAM 200 from the CAM 200.

[0274] The BPU 400 transmits the main line video received from the CAM 200 to the CCU 100. The BPU 400 transmits the first signal received from the CAM 200 to the CCU 100. The BPU 400 performs signal processing on the first signal received from the CAM 200 and transmits the signal-processed first signal to the CCU 100.

[0275] The BPU 400 transmits a control signal to the CAM 200. The BPU 400 transmits a second signal to the CAM 200. The BPU 400 transmits the control signal received from the CCU 100 to the CAM 200. The BPU 400 transmits the second signal received from the CCU 100 to the CAM 200.

[0276] [5-1-1. Configuration of signal processing apparatus according to fifth embodiment]

[0277] Next, the configuration of the BPU 400 according to the fifth embodiment will be described. Note that, Figure 14 Only components related to the communication processing between the components of the BPU 400 are shown.

[0278] As Figure 16 shown, the BPU 400 includes a transmission signal processing unit 410, a video signal processing unit 420, a control signal processing unit 430, a video input / output I / F unit 440, a control signal I / F unit 450, and antenna units 461 and 462 (see Figure 15 ).

[0279] The transmission signal processing unit 410 functions as a communication unit that transmits and receives signals. The transmission signal processing unit 410 includes a transmission signal processing unit 411 that is a second communication unit that communicates with the CAM 200 and a transmission signal processing unit 412 that is a first communication unit that communicates with the CCU 100. Note that the transmission signal processing unit 411 and the transmission signal processing unit 412 can be integrated. In a case where the transmission signal processing unit 411 and the transmission signal processing unit 412 are described without distinction, they will be referred to as the transmission signal processing unit 410.

[0280] The transmission signal processing unit 411 functions as a wireless communication unit that performs wireless communication with a camera that captures a video. The transmission signal processing unit 411 is realized by, for example, a NIC, a communication circuit, or the like. The transmission signal processing unit 411 transmits and receives signals (information) to and from the CAM 200 through wireless communication. The transmission signal processing unit 411 receives a signal from the CAM 200. The transmission signal processing unit 411 receives a video (signal) from the CAM 200.

[0281] The transmission signal processing unit 411 controls communication. The transmission signal processing unit 411 controls communication with another device such as the CAM 200. The transmission signal processing unit 411 controls communication between external information processing devices. The transmission signal processing unit 411 controls communication with the CAM 200. The transmission signal processing unit 411 transmits a signal (information) received by the transmission signal processing unit 412 from the CCU 100 to the CAM 200.

[0282] The transmission signal processing unit 412 functions as a wireless communication unit that performs wireless communication with the CCU 100. The transmission signal processing unit 412 is realized by, for example, a NIC, a communication circuit, or the like. The transmission signal processing unit 412 transmits and receives signals (information) to and from the CCU 100 through wireless communication or wired communication. The transmission signal processing unit 412 receives a signal from the CCU 100. The transmission signal processing unit 412 receives a video (signal) from the CCU 100.

[0283] The transmission signal processing unit 412 controls communication. The transmission signal processing unit 412 controls communication with another device such as the CCU 100. The transmission signal processing unit 412 controls communication between external information processing devices. The transmission signal processing unit 412 controls communication with the CCU 100. The transmission signal processing unit 412 transmits a signal (information) received by the transmission signal processing unit 411 from the CAM 200 to the CCU 100.

[0284] Further, the transmission signal processing unit 410 can be connected to a predetermined network in a wired or wireless manner, and transmit and receive information to and from other devices and the like through the predetermined network. In the case of communication with other cameras that perform wired communication, the BPU 400 can have a connector portion to be used for wired connection with the cameras. The BPU 400 is connected to the cameras in a wired manner by connecting a camera cable or the like connected to the cameras to the connector portion. In this case, the transmission signal processing unit 410 controls communication with the cameras connected through the camera cable or the like through the connector portion. Note that the camera cable here can be various cables such as an optical composite cable, a fiber cable, and a twisted pair cable.

[0285] The BPU 400 includes a storage unit. The storage unit is realized by, for example, a semiconductor memory element such as a RAM and a flash memory, or a storage device such as a hard disk and an optical disk. The storage unit stores various information. The storage unit stores various information for signal processing.

[0286] The video signal processing unit 420 is realized by, for example, a CPU, an MPU, or the like that executes a program (for example, a signal processing program related to a video) stored in the BPU 400 by using a RAM or the like as a work area. Further, the video signal processing unit 420 can be realized by, for example, an integrated circuit such as an ASIC and an FPGA.

[0287] The video signal processing unit 420 executes various signal processing. The video signal processing unit 420 executes signal processing related to a video. The video signal processing unit 420 functions as a signal processing unit that executes signal processing related to a video captured by a camera. The video signal processing unit 420 executes signal processing related to a video according to a control signal.

[0288] The video signal processing unit 420 executes video signal processing (image processing) on a signal received by the transmission signal processing unit 410. The video signal processing unit 420 executes various video signal processing. The video signal processing unit 420 executes processing related to color adjustment. For example, the video signal processing unit 420 executes processing related to demosaicing. For example, the video signal processing unit 420 executes processing related to noise removal. For example, the video signal processing unit 420 executes processing related to gamma correction.

[0289] Note that the above is an example, and the video signal processing unit 420 executes various video signal processing and the above-described processing. For example, the video signal processing unit 420 can execute a part of the video signal processing executed by the CCU 100 (the video signal processing unit 120) and the CAM 200 (the video signal processing unit 220).

[0290] The control signal processing unit 430 is implemented by, for example, a CPU, an MPU, or the like that executes a program (for example, a control-related signal processing program) stored in the BPU 400 using a RAM or the like as a work area. Further, the control signal processing unit 430 can be implemented by, for example, an integrated circuit such as an ASIC and an FPGA.

[0291] The control signal processing unit 430 performs control-related signal processing. The control signal processing unit 430 performs signal processing related to the control of the CAM 200. The control signal processing unit 430 performs signal processing related to the control of the BPU 400. Further, the control signal processing unit 430 performs signal processing related to the control of the camera. The control signal processing unit 430 generates a control signal (control information) for controlling the camera. The control signal processing unit 430 performs signal processing related to the control of the CAM 200. The control signal processing unit 430 generates a control signal for controlling the CAM 200.

[0292] The control signal processing unit 430 generates a signal of a command for controlling the camera. The control signal processing unit 430 generates a control signal for adjusting the aperture of the camera.

[0293] The control signal processing unit 430 controls the CAM 200 by transmitting a control signal to the CAM 200 via the transmission signal processing unit 410. The control signal processing unit 430 controls the camera by transmitting a control signal to the camera via the transmission signal processing unit 410. The control signal processing unit 430 outputs a control signal to the CAM 200 via the transmission signal processing unit 410. The control signal processing unit 430 outputs a control signal received from the CCU 100 to the CAM 200.

[0294] Note that the above is an example, and the control signal processing unit 430 performs various control signal processing and the above processing. For example, the control signal processing unit 430 can perform a part of the control signal processing to be performed by the CCU 100 (the video signal processing unit 120) and the CAM 200 (the control signal processing unit 230).

[0295] The control signal processing unit 430 can be integrated with the video signal processing unit 420. For example, the video signal processing unit 420 and the control signal processing unit 430 can be implemented by the same processor.

[0296] The video input / output I / F unit 440 has a function as a video-related input / output interface. The video input / output I / F unit 440 is an interface for connecting the BPU 400 and other information processing apparatuses. For example, the video input / output I / F unit 440 has a similar function to the video input / output I / F unit 140.

[0297] The control signal I / F unit 450 has a function as an interface of a control signal. The control signal I / F unit 450 is an interface for connecting the BPU 400 and other information processing apparatuses. The control signal I / F unit 450 has a similar function to the control signal I / F unit 150.

[0298] The antenna units 461 and 462 have a function of transmitting and receiving radio waves. The antenna units 461 and 462 radiate a signal output from the transmission signal processing unit 410 as a radio wave into space. Further, the antenna units 461 and 462 convert a radio wave in space into a signal and output the signal to the transmission signal processing unit 410. Note that the arrangement of the antenna units 461 and 462 will be described later.

[0299] [5-2. Outline of communication processing according to the fifth embodiment]

[0300] Figure 15 is a diagram illustrating an example of communication processing according to the fifth embodiment of the present disclosure. Further, Figure 15 is a diagram illustrating a configuration example of the camera system 2 according to the fifth embodiment of the present disclosure. The communication processing according to the fifth embodiment of the present disclosure is implemented by the camera system 2 illustrated in Figure 15 .

[0301] First, the configuration of the camera system 2 illustrated in Figure 15 will be described. The camera system 2 is a system including the CCU 100, the CAMs 200, and the BPU 400. As Figure 15 illustrated, the camera system 2 includes the CCU 100, a plurality of CAMs 200, and the BPU 400. In Figure 15 the example, only three CAMs 200-1, 200-2, and 200-3 are illustrated, but the camera system 2 can include four or more CAMs 200. As described above, the number of cameras (CAMs 200) included in the camera system 2 is not limited to Figure 15 three as illustrated in, and can be determined by, for example, a connectable number corresponding to a radio frequency band or the like.

[0302] Each of the CAMs 200 captures a video. Each of the CAMs 200 transmits the captured video (mainline video) to the BPU 400. Each of the CAMs 200 transmits a signal indicating a state of the camera (camera state) to the BPU 400. The camera state includes, for example, a state of a lens, a state of a shutter, and a state of a recording medium. Figure 15The first wireless communication indicated by the dotted line in the first signal (main line signal) from the BPU 400. Further, each of the CAM 200 and the BPU 400 communicates a signal (second signal) other than the first signal by the second wireless communication. As described above, each of the CAM 200 and the BPU 400 transmits and receives a signal (second signal) other than the main line video signal by the second wireless communication. Each of the CAM 200 and the BPU 400 transmits and receives the second signal by the second wireless communication Figure 15 indicated by the dotted line in the second signal.

[0303] Further, the CAM 200 also communicates the second signal by the second wireless communication. As described above, the camera system 2 is a mesh network in which the CAMs 200 are also wirelessly connected to each other. In the example shown in FIG. 2, each of the CAMs 200 transmits and receives the second signal to and from the other CAMs 200 by the second wireless communication indicated by the dotted line. Figure 15

[0304] The first wireless communication for communicating the main line video is wireless communication having a wide bandwidth, high reliability, and low latency. For example, the first wireless communication is communication satisfying at least one of a wider bandwidth than that of the second wireless communication, a higher reliability than that of the second wireless communication, or a lower latency than that of the second wireless communication.

[0305] As described above, in the camera system 2, the communication between the BPU 400 and the CAM 200 is wireless communication, and the communication is performed using the first wireless communication for communicating the main line video and using the second wireless communication for communicating other information. As a result, the camera system 2 can improve the degree of freedom of camera installation.

[0306] Further, the BPU 400 communicates with the CCU 100. The BPU 400 communicates various signals (information) such as the first signal and the second signal with the CCU 100. The BPU 400 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 by the communication CM 41 Figure 4 to 6 in the communication CM 41. For example, the BPU 400 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 by the communication CM 41 as wireless communication. Further, for example, the BPU 400 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 by the communication CM 41 as wired communication.

[0307] [5-3. Antenna arrangement example of signal processing device]

[0308] ​The antennas of the BPU 400, which is a signal processing device, can be arranged in various ways. The arrangement of the antennas of the BPU 400 can be similar to Figure 16 the arrangement of the antennas of the CCU 100 shown.

[0309] Further, in a case where the BPU 400 is wirelessly connected to the CCU 100, an antenna arrangement configuration as shown in Figure 16 may be employed. Figure 16 is a diagram showing an example of an antenna arrangement of a signal processing device. Note that the BPU 400 can employ a usage form arranged at a predetermined position, or can employ a portable (portable) usage form.

[0310] In the example of Figure 17 , the antenna unit 461 of the BPU 400 is arranged at the front side of the BPU 400. The antenna unit 461 of the BPU 400 is arranged at the front surface FF side of the main body portion 401 of the BPU 400. The antenna unit 461 can be an antenna for connecting with the CAM 200. The antenna unit 461 is used for communication with the CAM 200 by the transmission signal processing unit 411. The main body portion 401 of the CCU 100 is a chassis (housing) that houses components (processors, memories, etc.) that realize the transmission signal processing unit 411, the transmission signal processing unit 412, the video signal processing unit 420, the control signal processing unit 430, the video input / output I / F unit 440, the control signal I / F unit 450, the storage unit 440, etc.

[0311] Further, in a case where the BPU 400 is housed in a shelf or the like, the antenna unit 461 of the BPU 400 is arranged at the front surface FF side arranged at the front surface side of the shelf or the like. For example, in a case where the BPU 400 is housed in a shelf or the like, the antenna unit 461 of the BPU 400 is arranged at the front surface FF side arranged to face the front of the shelf.

[0312] The antenna unit 462 of the BPU 400 is arranged at the rear side of the BPU 400. The antenna unit 462 of the BPU 400 is arranged at the rear surface RF side of the main body portion 401 of the BPU 400. The antenna unit 462 can be an antenna for connecting with the CCU 100. The antenna unit 462 is used for communication with the CCU 100 by the transmission signal processing unit 412.

[0313] Further, in a case where the BPU 400 is housed in a shelf or the like, the antenna unit 462 of the BPU 400 is arranged at the rear surface RF side arranged at the rear surface side of the shelf or the like. For example, in a case where the BPU 400 is housed in a shelf or the like, the antenna unit 462 of the BPU 400 is arranged at the rear surface RF side arranged to face the rear side of the shelf.

[0314] [6. Sixth Embodiment]

[0315] Note that the system configuration and communication mode of the camera system including the BPU are not limited to the above-described fifth embodiment, and various system configurations and communication modes can be employed. This will be described below.

[0316] While in the fifth embodiment, the case where the BPU 400 and the CAM 200 directly communicate with each other has been described, a communication mode via another device (equipment) can be employed. In the sixth embodiment, a camera system 2A in which the BPU 400 and the CAM 200 communicate with each other via a base station will be described. Note that the description of points similar to those of the fifth embodiment will be omitted as appropriate.

[0317] [6-1. Outline of Camera System and Communication Processing According to the Sixth Embodiment of the Present Disclosure]

[0318] An outline of the camera system and communication processing according to the sixth embodiment will be described with reference to Figure 17 [6-2. Configuration of Camera System According to the Sixth Embodiment] Figure 17 is a diagram illustrating an example of the camera system and communication processing according to the sixth embodiment of the present disclosure. The configuration of the camera system 2A illustrated in Figure 17 will be described. As Figure 17 indicated, the camera system 2A includes the CCU 100, a plurality of CAMs 200, and the BPU 400. Figure 17 A case where a wireless base station is inserted between the CAM 200 and the BPU 400 is illustrated.

[0319] In the camera system 2A, the first wireless communication is performed by the base station 300-1 as the first base station. In the camera system 2A, the first wireless communication between the CAM 200 and the BPU 400 is performed via the base station 300-1 as the first base station.

[0320] In the camera system 2A, the second wireless communication is performed by the base station 300-2 as the second base station. In the camera system 2A, the second wireless communication between the CAM 200 and the BPU 400 is performed via the base station 300-2 as the second base station.

[0321] Further, the BPU 400 communicates with the CCU 100. The BPU 400 communicates various signals (information) such as the first signal and the second signal with the CCU 100. The BPU 400 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 through the communication CM51 in Figure 18

[0322] [7. Seventh Embodiment] ​

[0323] Although in the fifth embodiment and the sixth embodiment, the system configuration using one BPU 400 has been described, a plurality of BPU 400 can be used. In the seventh embodiment, a camera system 2B including a plurality of BPU 400 will be described. Note that the description of points similar to those of the fifth embodiment and the sixth embodiment will be omitted as appropriate.

[0324] [7-1. Outline of camera system and communication processing according to the seventh embodiment of the present disclosure]

[0325] The outline of the camera system and the communication processing according to the seventh embodiment will be described with reference to Figure 18 FIG. 7. Figure 18 is a diagram illustrating an example of the camera system and the communication processing according to the seventh embodiment of the present disclosure. As Figure 18 indicated, the camera system 2B includes a plurality of 100, a plurality of CAM 200, and a plurality of BPU 400. In the case of describing the CCU 100-1 to the CCU 100-3 and the like without particular distinction, they are referred to as the CCU 100. In the case of describing the BPU 400-1 to the BPU 400-3 and the like without particular distinction, they will be referred to as the BPU 400.

[0326] In the camera system 2B indicated in Figure 18 , a configuration in which one CAM 200 is connected to one BPU 400, that is, a configuration in which the CAM and the BPU are connected in a one-to-one manner is shown. The BPU 400 according to the seventh embodiment is different from the BPU 400 according to the fifth embodiment and the BPU 400 according to the sixth embodiment in terms of communication with one CAM 200.

[0327] In the example of Figure 18 , the BPU 400-1 is wirelessly connected to the CAM 200-1. The CAM 200-1 transmits a signal (a first signal) of the main line video to the BPU 400-1 through the first wireless communication. The BPU 400-1 receives the first signal from the CAM 200-1 through the first wireless communication. The CAM 200-1 transmits a signal (a second signal) other than the first signal to the BPU 400-1 through the second wireless communication. The BPU 400-1 receives the second signal from the CAM 200-1 through the second wireless communication.

[0328] Further, the BPU 400-1 communicates with the CCU 100-1. The BPU 400-1 communicates various signals (information) such as the first signal and the second signal with the CCU 100-1. The BPU 400-1 transmits the first signal and the second signal to the CCU 100-1 through the third wireless communication. Figure 18The communication CM61 transmits and receives various signals (information), such as the first signal and the second signal, to and from the CCU 100-1. For example, the BPU 400-1 transmits and receives various signals (information), such as the first signal and the second signal, to and from the CCU 100-1 through the communication CM61 as wireless communication. Also, for example, the BPU 400-1 transmits and receives various signals (information), such as the first signal and the second signal, to and from the CCU 100-1 through the communication CM61 as wired communication.

[0329] In Figure 18 the example, the BPU 400-2 is wirelessly connected to the CAM 200-2. The CAM 200-2 transmits a signal (the first signal) of the main line video to the BPU 400-2 through the first wireless communication. The BPU 400-2 receives the first signal from the CAM 200-2 through the first wireless communication. The CAM 200-2 transmits a signal (the second signal) other than the first signal to the BPU 400-2 through the second wireless communication. The BPU 400-2 receives the second signal from the CAM 200-2 through the second wireless communication.

[0330] Also, the BPU 400-2 communicates with the CCU 100-2. The BPU 400-2 communicates various signals (information), such as the first signal and the second signal, with the CCU 100-2. The BPU 400-2 transmits and receives various signals (information), such as the first signal and the second signal, to and from the CCU 100-2 through Figure 18 the communication CM62. For example, the BPU 400-2 transmits and receives various signals (information), such as the first signal and the second signal, to and from the CCU 100-2 through the communication CM62 as wireless communication or wired communication.

[0331] In Figure 18 the example, the BPU 400-3 is wirelessly connected to the CAM 200-3. The CAM 200-3 transmits a signal (the first signal) of the main line video to the BPU 400-3 through the first wireless communication. The BPU 400-3 receives the first signal from the CAM 200-3 through the first wireless communication. The CAM 200-3 transmits a signal (the second signal) other than the first signal to the BPU 400-3 through the second wireless communication. The BPU 400-3 receives the second signal from the CAM 200-3 through the second wireless communication.

[0332] Also, the BPU 400-3 communicates with the CCU 100-3. The BPU 400-3 communicates various signals (information), such as the first signal and the second signal, with the CCU 100-3. The BPU 400-3 transmits and receives various signals (information), such as the first signal and the second signal, to and from the CCU 100-3 throughFigure 19 The communication CM 63 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100-3. For example, the BPU 400-3 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100-3 through the communication CM 63 as wireless communication or wired communication.

[0333] [8. Eighth Embodiment]

[0334] Although in the seventh embodiment, the example in which a plurality of CCUs 100 are respectively associated with a plurality of BPUs 400 in an N-to-N manner has been described, one CCU 100 can be associated with a plurality of BPUs 400. In the eighth embodiment, a camera system 2C including one CCU 100 and a plurality of BPUs 400 will be described. Note that the description of points similar to the seventh embodiment will be omitted as appropriate.

[0335] [8-1. Outline of Camera System and Communication Process According to the Eighth Embodiment of the Present Disclosure]

[0336] The outline of the camera system and the communication process according to the eighth embodiment will be described with reference to Figure 19 Figure 19 is a diagram illustrating an example of the camera system and the communication process according to the eighth embodiment of the present disclosure. As Figure 19 indicated, the camera system 2C includes the CCU 100, a plurality of CAMs 200, and a plurality of BPUs 400. In a case where BPU 400-1 to BPU 400-3 and the like are described without being particularly distinguished, they will be referred to as the BPU 400.

[0337] In the camera system 2C indicated in Figure 19 , a configuration in which one CCU 100 is connected to a plurality of BPUs 400, that is, a configuration in which the BPU and the CCU are connected in an N-to-1 manner is shown. The camera system 2C according to the eighth embodiment is different from the camera system 2B according to the seventh embodiment in that one CCU 100 communicates with a plurality of BPUs 400.

[0338] In the example of Figure 19 , the BPU 400-1 communicates with the CCU 100. The BPU 400-1 communicates various signals (information) such as the first signal and the second signal with the CCU 100. The BPU 400-1 transmits and receives the various signals (information) such as the first signal and the second signal to and from the CCU 100 through the communication CM 63. Figure 19 ​The communication CM71 in the BPU 400-1 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100. For example, the BPU 400-1 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 through the communication CM71 as wireless communication or wired communication.

[0339] Further, the BPU 400-2 communicates with the CCU 100. The BPU 400-2 communicates various signals (information) such as the first signal and the second signal with the CCU 100. The 400-2 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 through Figure 19 The communication CM72 in the BPU 400-2 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100. For example, the BPU 400-2 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 through the communication CM72 as wireless communication or wired communication.

[0340] Further, the BPU 400-3 communicates with the CCU 100. The BPU 400-3 communicates various signals (information) such as the first signal and the second signal with the CCU 100. The 400-3 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 through Figure 20 The communication CM73 in the BPU 400-3 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100. For example, the BPU 400-3 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100 through the communication CM73 as wireless communication or wired communication.

[0341] [9. Ninth Embodiment]

[0342] Although in the seventh embodiment, the example in which a plurality of CCUs 100 are respectively associated with a plurality of BPUs 400 on an N-to-N basis has been described, a plurality of CCUs 100 can be associated with one BPU 400. In the ninth embodiment, a camera system 2C including a plurality of CCUs 100 and one BPU 400 will be described. Note that the description of points similar to the seventh embodiment will be omitted as appropriate.

[0343] [9-1. Outline of Camera System and Communication Process According to Ninth Embodiment of the Present Disclosure]

[0344] An outline of the camera system and the communication process according to the ninth embodiment will be described with reference to Figure 20 Figure 20 is a diagram illustrating an example of a camera system and a communication process according to the ninth embodiment of the present disclosure. As Figure 20 ​As shown, the camera system 2D includes a plurality of CCUs 100, a plurality of CAMs 200, and a BPU 400. In a case where CCU 100-1 to CCU 100-3 and the like are described without being particularly distinguished, they are referred to as CCU 100.

[0345] In Figure 20 In the camera system 2D shown, a configuration in which a plurality of CAMs 200 and a plurality of CCUs 100 are connected to one BPU 400, that is, a configuration in which the CAN, the CCU, and the BPU are connected in an N-to-1 manner, is shown. The camera system 2D according to the ninth embodiment differs from the camera system 2B according to the seventh embodiment in that one BPU 400 communicates with a plurality of CAMs 200 and a plurality of CCUs 100.

[0346] In Figure 20 In the example of FIG. 17, the BPU 400 is wirelessly connected to the CAM 200-1. The CAM 200-1 transmits a signal of the main line video (first signal) to the BPU 400 through first wireless communication. The BPU 400 receives the first signal from the CAM 200-1 through the first wireless communication. The CAM 200-1 transmits a signal other than the first signal (second signal) to the BPU 400 through second wireless communication. The BPU 400 receives the second signal from the CAM 200-1 through the second wireless communication.

[0347] Further, the BPU 400 communicates with the CCU 100-1. The BPU 400 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100-1 through the communication CM81. Figure 20 In the example of FIG. 17, the BPU 400 is wirelessly connected to the CAM 200-1. The CAM 200-1 transmits a signal of the main line video (first signal) to the BPU 400 through first wireless communication. The BPU 400 receives the first signal from the CAM 200-1 through the first wireless communication. The CAM 200-1 transmits a signal other than the first signal (second signal) to the BPU 400 through second wireless communication. The BPU 400 receives the second signal from the CAM 200-1 through the second wireless communication.

[0348] In Figure 20 In the example of FIG. 17, the BPU 400 is wirelessly connected to the CAM 200-1. The CAM 200-1 transmits a signal of the main line video (first signal) to the BPU 400 through first wireless communication. The BPU 400 receives the first signal from the CAM 200-1 through the first wireless communication. The CAM 200-1 transmits a signal other than the first signal (second signal) to the BPU 400 through second wireless communication. The BPU 400 receives the second signal from the CAM 200-1 through the second wireless communication.

[0349] Further, the BPU 400 communicates with the CCU 100-2. The BPU 400 communicates various signals (information) such as the first signal and the second signal with the CCU 100-2. The 400-2 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100-2 through the communication CM82 in Figure 20

[0350] In the example of FIG. 10, the BPU 400 is wirelessly connected to the CAM 200-3. The CAM 200-3 transmits a signal of the mainline video (the first signal) to the BPU 400 through the first wireless communication. The BPU 400 receives the first signal from the CAM 200-3 through the first wireless communication. The CAM 200-3 transmits a signal other than the first signal (the second signal) to the BPU 400 through the second wireless communication. The BPU 400 receives the second signal from the CAM 200-3 through the second wireless communication. Figure 20 Further, the BPU 400 communicates with the CCU 100-3. The BPU 400 communicates various signals (information) such as the first signal and the second signal with the CCU 100-3. The 400-3 transmits and receives various signals (information) such as the first signal and the second signal to and from the CCU 100-3 through the communication CM83 in

[0351] Figure 22

[0352] [10. Other Embodiments]

[0353] The processing according to the above-described embodiments can be performed in various different forms (modifications) other than the above-described embodiments.

[0354] [10-1. Other Configuration Examples]

[0355] For example, although in the above-described examples, the case where the CCU 100 and the BPU 400 are provided separately has been described, the CCU 100 and the BPU 400 can be integrated. In this case, the camera system can include a signal processing apparatus having the functions of the CCU 100 and the BPU 400. For example, the camera system can include a CCU 100 having the functions of the BPU 400 and the CAM 200. ​​​

[0356] [10-2. Other]

[0357] In the processing described in the above-described embodiments, all or a part of the processing described as being automatically performed can be manually performed, or all or a part of the processing described as being manually performed can be automatically performed by a known method. Furthermore, unless otherwise specified, the processing procedure, specific names, and information including various data and parameters shown in this document and the drawings can be arbitrarily changed. For example, the various information shown in each drawing is not limited to the information shown.

[0358] Furthermore, each component of each device shown in the drawings is conceptual in terms of function, and is not necessarily physically configured as shown in the drawings. In other words, the specific form of distribution and integration of each device is not limited to the illustrated form, and all or a part thereof can be distributed and integrated in an arbitrary unit in terms of function or physically according to various loads, usage conditions, and the like.

[0359] Furthermore, the above-described embodiments and modifications can be appropriately combined within a range not contradictory to the processing content.

[0360] Furthermore, the effects described in this specification are merely examples and are not limited. Other effects can be provided.

[0361] [11. Effects according to the present disclosure]

[0362] As described above, the camera system according to the present disclosure (in this embodiment, the camera systems 1, 1A, 1B, 1C, 2A, 2B, 2C, and 2D) includes a camera (CAM 200 in the embodiment) and a signal processing device (CCU 100 and BPU 400 in the embodiment). The camera has a wireless communication function and captures a video. The signal processing device has a wireless communication function and performs signal processing related to the video captured by the camera. The camera and the signal processing device are wirelessly connected.

[0363] As described above, in the camera system according to the present disclosure, the camera and the signal processing device are wirelessly connected to each other, which allows the camera to be installed without being affected by the length of a cable and the like as in the case of wired connection, so that the degree of freedom of camera installation can be improved. The camera system improves the degree of freedom of camera installation, eliminates the need for a person other than a camera operator to perform processing related to a cable, and can improve the convenience of a user using the system.

[0364] Further, the camera and the signal processing device communicate a first signal, which is a signal of a video captured by the camera, through first wireless communication. The camera and the signal processing device communicate a second signal other than the first signal through second wireless communication different from the first wireless communication. As described above, the camera system can improve the degree of freedom of camera installation while ensuring stable video communication by separating video communication from other communication. The camera system can ensure a stable connection regardless of the radio state of the main line video.

[0365] Further, the first wireless communication is communication satisfying at least one of a wider bandwidth than the second wireless communication, a higher reliability than the second wireless communication, or a lower delay than the second wireless communication. As described above, the camera system can communicate a video through the first wireless communication, perform video communication through the first wireless communication of higher quality satisfying at least one of a wider bandwidth, a higher reliability, or a lower delay than the second wireless communication. The camera system can ensure a stable connection regardless of the radio state of the second signal (e.g., a synchronization signal).

[0366] The second signal is a signal related to imaging of the camera. As described above, the camera system can communicate a signal related to imaging of the camera by means of the second wireless communication, separate video communication from other communication, and can provide communication in an appropriate communication mode according to the communication content.

[0367] Further, the second signal is a signal for controlling the camera. As described above, the camera system can communicate a signal for controlling the camera by means of the second wireless communication, provide communication in an appropriate communication mode according to the communication content.

[0368] Further, the second signal is a signal of a synchronization signal with another camera or a command for controlling the camera. As described above, the camera system can communicate a signal of a synchronization signal with another camera or a command for controlling the camera by means of the second wireless communication, provide communication in an appropriate communication mode according to the communication content.

[0369] Further, the second signal is a signal for transmitting information between users using the camera system. As described above, the camera system can communicate a signal for transmitting information between users using the camera system by means of the second wireless communication, provide communication in an appropriate communication mode according to the communication content.

[0370] Further, the second signal is a RET image signal or an INCOM signal. As described above, by communicating a RET image signal or an INCOM signal by means of the second wireless communication, the camera system can provide communication in an appropriate communication mode according to the communication content.

[0371] Further, the second signal is a signal for information transmission to an imaging subject of the camera. As described above, the camera system can communicate a signal for information transmission to an imaging subject of the camera by means of the second wireless communication, and provide communication in an appropriate communication mode according to the communication content.

[0372] The second signal is a notice signal or a beeper signal. As described above, the camera system can communicate a notice signal or a beeper signal by means of the second wireless communication, and provide communication in an appropriate communication mode according to the communication content.

[0373] The camera is a plurality of cameras. The signal processing device and the plurality of cameras communicate with each other by means of the first wireless communication and the second wireless communication. As a result, the camera system can communicate between the plurality of cameras and the signal processing device by means of the first wireless communication and the second wireless communication. Therefore, even in the case where there are a plurality of cameras, the camera system can communicate wirelessly, and thus the degree of freedom of camera installation can be improved. The camera system can reduce the operating cost of the site. The camera system can simplify the system architecture.

[0374] Further, the plurality of cameras communicate with each other by means of the second wireless communication. As a result, the camera system can communicate between the plurality of cameras by means of the second wireless communication. Therefore, the camera system can communicate the second signal between the cameras, and can provide communication in an appropriate communication mode according to the communication content. The camera system can ensure stable connection for a control signal (second signal) such as a synchronization signal. Further, the camera system can exchange only a RET image signal and an INCOM signal (second signal) between the cameras, instead of via the signal processing device.

[0375] The plurality of cameras include one master camera and one slave camera. The signal processing device transmits a control signal common to the plurality of cameras to one master camera. One master camera transmits a control signal to a slave camera. As a result, the camera system can appropriately control each camera while preventing an increase in communication load between the camera and the signal processing device. Therefore, even in the case where there are a plurality of cameras, the camera system can provide communication in an appropriate communication mode according to the communication content. The camera system can improve the efficiency of use of a radio frequency band.

[0376] Further, the signal processing device recognizes the manufacturer of the camera when wirelessly connected with the camera. As a result, the camera system can perform wireless connection only between a camera and the signal processing device corresponding to the manufacturer of the signal processing device, and can reduce erroneous connection with a camera or a signal processing device of another manufacturer.

[0377] Further, the camera and the signal processing apparatus confirm a state of the wireless connection from the camera. Therefore, the camera system can simplify a polling process (for example, confirmation of the state of the wireless connection), and can reduce a communication load. The camera system can reduce an amount of data at the time of polling. The camera system can shorten a period required for system recovery.

[0378] Further, the signal processing apparatus includes a main body portion (main body portion 101 in the embodiment) that performs signal processing, and an antenna unit (antenna unit 160 in the embodiment) that is separate from the main body portion and performs wireless communication with the camera. As a result, the camera system can improve a degree of freedom of antenna installation of the signal processing apparatus, and can improve a degree of freedom of camera installation. The camera system can optimize an antenna position, and can improve convenience of a user using the system.

[0379] Further, the signal processing apparatus includes a connector portion for wired connection with another camera that performs wired communication. As a result, the camera system can also perform communication between a camera that can communicate only in a wired manner and the signal processing apparatus, and can improve a degree of freedom of camera installation. The camera system can maintain connection compatibility with a non-wireless-compatible camera.

[0380] As described above, the signal processing apparatus (CCU 100 and BPU 400 in the embodiment) according to the present disclosure includes a wireless communication unit (transmission signal processing unit 110 in the embodiment) and a signal processing unit (video signal processing unit 120 in the embodiment). The wireless communication unit performs wireless communication with a camera that captures a video. The signal processing unit performs signal processing related to a video captured by the camera.

[0381] Therefore, the signal processing apparatus according to the present disclosure can perform wireless communication with a camera, and can improve a degree of freedom of camera installation. Therefore, the signal processing apparatus can improve a degree of freedom of camera installation in a camera system using the signal processing apparatus, eliminate a need for a person other than a camera operator to perform a process related to a cable, and improve convenience of a user using the system.

[0382] As described above, the camera (CAM 200 in the embodiment) according to the present disclosure includes an imaging unit (imaging element 250 in the embodiment) and a wireless communication unit (transmission signal processing unit 210 in the embodiment). The imaging unit captures a video. The wireless communication unit performs wireless communication with a signal processing apparatus that performs signal processing related to the video.

[0383] Accordingly, the camera according to the present disclosure can perform wireless communication with the signal processing device, and thus the degree of freedom of camera installation can be improved. Accordingly, the camera system using the camera improves the degree of freedom of camera installation, eliminates the need for another person other than the camera operator to perform a process related to a cable, and thus the convenience of a user using the system can be improved.

[0384] [12. Hardware configuration]

[0385] For example, the signal processing device (information device) such as the CCU 100 and the BPU 400 according to the above-described embodiments is implemented by a computer 1000 having a configuration as shown in FIG. 10. Figure 22 ​ is a hardware configuration diagram showing an example of the computer 1000 that implements the functions of the signal processing device. Hereinafter, the CCU 100 is exemplified. The computer 1000 includes a CPU 1100, a RAM 1200, a read only memory (ROM) 1300, a hard disk drive (HDD) 1400, a communication interface 1500, and an input / output interface 1600. The respective units of the computer 1000 are connected by a bus 1050.

[0386] The CPU 1100 operates based on a program stored in the ROM 1300 or the HDD 1400, and controls the respective units. For example, the CPU 1100 expands a program stored in the ROM 1300 or the HDD 1400 into the RAM 1200, and executes processing corresponding to the respective programs.

[0387] The ROM 1300 stores a boot program (for example, a basic input / output system (BIOS) executed by the CPU 1100 when the computer 1000 is activated), a program depending on the hardware of the computer 1000, and the like.

[0388] The HDD 1400 is a computer-readable recording medium that non-transitorily records a program to be executed by the CPU 1100, data to be used by the program, and the like. Specifically, the HDD 1400 is a recording medium that records an information processing program (for example, a signal processing program according to the present disclosure) that is an example of program data 1450.

[0389] The communication interface 1500 is an interface through which the computer 1000 is connected to an external network 1550 (for example, the Internet). For example, the CPU 1100 receives data from another device, or transmits data generated by the CPU 1100 to another device via the communication interface 1500.

[0390] ​The input / output interface 1600 is an interface for connecting the input / output device 1650 and the computer 1000. For example, the CPU 1100 receives data from an input device such as a keyboard and a mouse via the input / output interface 1600. Also, the CPU 1100 transmits data to an output device such as a display, a speaker, or a printer via the input / output interface 1600. Further, the input / output interface 1600 can serve as a medium interface for reading a program or the like recorded in a predetermined recording medium (medium). The medium is, for example, an optical recording medium such as a digital versatile disc (DVD) or a phase-change rewritable disc (PD), a magneto-optical recording medium such as a magneto-optical disc (MO), a tape medium, a magnetic recording medium, a semiconductor memory, or the like.

[0391] For example, in a case where the computer 1000 is used as the CCU 100 according to the present embodiment, the CPU 1100 of the computer 1000 executes an information processing program loaded on the RAM 1200 to realize the functions of the video signal processing unit 120, the control signal processing unit 130, and the like. Also, the HDD 1400 stores an information processing program and data according to the present disclosure in the storage unit of the CCU 100. Note that the CPU 1100 reads the program data 1450 from the HDD 1400 and executes the program data 1450, but as another example, these programs can be acquired from another device via the external network 1550.

[0392] Note that the present technology can also have the following configurations.

[0393] (1) A camera system including:

[0394] a camera having a wireless communication function and configured to capture a video; and

[0395] a signal processing device having a wireless communication function and configured to perform signal processing related to the video captured by the camera,

[0396] wherein the camera and the signal processing device are wirelessly connected.

[0397] (2) The camera system according to (1),

[0398] wherein the camera and the signal processing device communicate a first signal that is a signal of the video captured by the camera through a first wireless communication, and

[0399] the camera and the signal processing device communicate a second signal other than the first signal through a second wireless communication different from the first wireless communication.

[0400] (3) The camera system according to (2),

[0401] The first wireless communication is a communication satisfying at least one of a wider bandwidth than a bandwidth of the second wireless communication, a higher reliability than a reliability of the second wireless communication, or a lower delay than a delay of the second wireless communication.

[0402] (4) The camera system according to (2) or (3),

[0403] The second signal is a signal related to imaging of the camera.

[0404] (5) The camera system according to (4)

[0405] The second signal is a signal to be used for control of the camera.

[0406] (6) The camera system according to (5)

[0407] The second signal is a signal of a synchronization signal with another camera or a command for control of the camera.

[0408] (7) The camera system according to (4)

[0409] The second signal is a signal to be used for information transmission between users using the camera system.

[0410] (8) The camera system according to (7)

[0411] The second signal is a RET image signal or an INCOM signal.

[0412] (9) The camera system according to (4)

[0413] The second signal is a signal to be used for information transmission to an imaging object of the camera.

[0414] (10) The camera system according to (9)

[0415] The second signal is a signboard signal or a prompter signal.

[0416] (11) The camera system according to any one of (2) to (10),

[0417] The camera is a plurality of cameras, and

[0418] The signal processing device and the plurality of cameras perform communication through first wireless communication and second wireless communication.

[0419] (12) The camera system according to (11),

[0420] The plurality of cameras communicate with each other through the second wireless communication.

[0421] (13) The camera system according to (11) or (12),

[0422] wherein the plurality of cameras include one master camera and slave cameras,

[0423] the signal processing device transmits a control signal common to the plurality of cameras to the one master camera, and

[0424] the one master camera transmits the control signal to the slave cameras.

[0425] (14) The camera system according to any one of (1) to (13),

[0426] wherein the signal processing device identifies a manufacturer of the camera when wirelessly connected with the camera.

[0427] (15) The camera system according to any one of (1) to (14),

[0428] wherein the camera confirms a state of the wireless connection between the camera and the signal processing device.

[0429] (16) The camera system according to any one of (1) to (15),

[0430] wherein the signal processing device includes:

[0431] a main part that performs signal processing; and

[0432] an antenna unit that is separate from the main part and performs wireless communication with the camera.

[0433] (17) The camera system according to any one of (1) to (16),

[0434] wherein the signal processing device includes:

[0435] a connector part to be used for wired connection with another camera that performs communication in a wired manner.

[0436] (18) A communication method for wireless connection:

[0437] a camera having a wireless communication function and configured to capture a video; and

[0438] a signal processing device having a wireless communication function and configured to perform signal processing related to the video captured by the camera.

[0439] (19) A signal processing device comprising:

[0440] a wireless communication unit configured to perform wireless communication with a camera that captures a video; and

[0441] A signal processing unit configured to perform signal processing related to a video captured by a camera.

[0442] (20) A camera comprising:

[0443] An imaging unit configured to capture a video; and

[0444] A wireless communication unit configured to perform wireless communication with a signal processing device that performs signal processing related to the video.

[0445] Reference sign list

[0446] 1 Camera system

[0447] 100 CCU (signal processing device)

[0448] 101 Main body portion

[0449] 110 Transmission signal processing unit (wireless communication unit)

[0450] 120 Video signal processing unit (signal processing unit)

[0451] 130 Control signal processing unit (signal processing unit)

[0452] 140 Video input / output I / F unit

[0453] 150 Control signal I / F unit

[0454] 160 Antenna unit

[0455] 200 CAM (camera)

[0456] 210 Transmission signal processing unit (wireless communication unit)

[0457] 220 Video signal processing unit

[0458] 230 Control signal processing unit

[0459] 240 Video input / output I / F unit

[0460] 250 Imaging element (imaging unit)

Claims

1. A camera system, comprising: A camera with wireless communication capabilities and configured to shoot video; and A signal processing device that has wireless communication capabilities and is configured to perform signal processing related to video captured by a camera. The camera and signal processing equipment are wirelessly connected. The camera and signal processing device communicate via a first wireless communication for a first signal that is a video signal captured by the camera. The camera and signal processing device communicate with a second signal, which is a non-video signal and is different from the first wireless communication, via a second wireless communication. The camera is multiple cameras. The signal processing device and the plurality of cameras communicate via a first wireless communication and a second wireless communication. The multiple cameras communicate with each other via a second wireless communication. The communication path of the second signal between the multiple cameras is a direct communication path that does not go through the signal processing device, and a mesh network is formed by the second wireless communication that wirelessly connects the multiple cameras to each other.

2. The camera system according to claim 1, in, The first wireless communication is a communication that satisfies at least one of the following: a wider bandwidth than the second wireless communication, higher reliability than the second wireless communication, or lower latency than the second wireless communication.

3. The camera system according to claim 1, in, The second signal is a signal related to the camera's imaging.

4. The camera system according to claim 3, in, The second signal is the signal used to control the camera.

5. The camera system according to claim 4, in, The second signal is a synchronization signal with other cameras or a signal used to control the camera.

6. The camera system according to claim 3, in, The second signal is used for information transmission between users using the camera system.

7. The camera system according to claim 6, in, The second signal is the INCOM signal, which is a voice signal used by users of the camera system to communicate with each other.

8. The camera system according to claim 3, in, The second signal is a signal used to transmit information about the object being imaged by the camera.

9. The camera system according to claim 8, in, The second signal is a notification signal or prompt signal.

10. The camera system according to claim 1, in, The plurality of cameras includes a master camera and slave cameras. The signal processing device sends a control signal shared by the multiple cameras to the main camera, and The master camera sends control signals to the slave camera.

11. The camera system according to claim 1, in, The signal processing equipment identifies the camera's manufacturer when wirelessly connected to the camera.

12. The camera system according to claim 1, in, The camera confirms the wireless connection status between the camera and the signal processing equipment.

13. The camera system according to claim 1, in, The signal processing device includes: The main part that performs signal processing; and An antenna unit that is separate from the main body and performs wireless communication with the camera.

14. The camera system according to claim 1, in, The signal processing device includes: The connector section is used for wired connection with other cameras that communicate via wired means.

15. A communication method for wireless connection: A camera with wireless communication capabilities and configured to shoot video; and A signal processing device that has wireless communication capabilities and is configured to perform signal processing related to video captured by a camera. The camera and signal processing device communicate via a first wireless communication for a first signal that is a video signal captured by the camera. The camera and signal processing device communicate with a second signal, which is a non-video signal and is different from the first wireless communication, via a second wireless communication. The camera is multiple cameras. The signal processing device and the plurality of cameras communicate via a first wireless communication and a second wireless communication. The plurality of cameras communicate with each other via a second wireless communication. The communication path of the second signal between the multiple cameras is a direct communication path that does not go through the signal processing device, and a mesh network is formed by the second wireless communication that wirelessly connects the multiple cameras to each other.

16. A signal processing apparatus, comprising: A wireless communication unit configured to perform wireless communication with a camera that captures video; and A signal processing unit configured to perform signal processing related to video captured by a camera. The signal processing equipment and camera are wirelessly connected. The signal processing device and the camera communicate via a first wireless communication for a first signal that is a video signal captured by the camera. The signal processing device and the camera communicate with a second signal, which is a non-video signal and is different from the first wireless communication, via a second wireless communication. The camera is multiple cameras. The signal processing device and the plurality of cameras communicate via a first wireless communication and a second wireless communication. The multiple cameras communicate with each other via a second wireless communication. The communication path of the second signal between the multiple cameras is a direct communication path that does not go through the signal processing device, and a mesh network is formed by the second wireless communication that wirelessly connects the multiple cameras to each other.

Images