Imaging apparatus and control method for imaging apparatus

Abstract

To provide an imaging apparatus that can operate appropriately in accordance with whether a broadcasting station is broadcasting an image signal of a subject being captured by an imaging apparatus of one's own.SOLUTION: A broadcasting use determining unit 251 determines whether a captured image signal transmitted to a broadcasting station by capturing an image of a subject by an imaging apparatus 100 of one's own is being used in broadcast by the broadcasting station. When the broadcasting use determining unit 251 determines that the captured image signal is being used for broadcasting by the broadcasting station, a device setting unit 252 does not permit changes in the setting or the state of the imaging apparatus 100 of one's own.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an imaging apparatus and a control method for the imaging apparatus. [Background technology]

[0002] For example, an image capture device installed at a broadcasting site captures an object and transmits the image signal to a network. The image signal is then transmitted to a broadcasting station via the network. The broadcasting station then broadcasts the image signal. At this time, the broadcasting station captures and transmits the image signal being broadcast as a return image signal via the network. The imaging device receives the return image signal and displays it on a monitor. By displaying the image, the photographer can feel that the broadcast station is notified of the image of the subject being photographed by the photographer's imaging device. You can check whether the signal is being broadcast or not. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4738251 [Patent Document 2] Japanese Patent Application Publication No. 7-231183 Summary of the Invention [Problem to be solved by the invention]

[0004] The imaging device receives an image signal of a subject captured by the imaging device from a broadcasting station. It is desirable for the broadcasting station to operate appropriately depending on whether or not the broadcasting station is connected to the imaging device. It can operate appropriately depending on whether the camera is broadcasting an image signal of the subject being shot. The object of the present invention is to provide an imaging device and a control method for an imaging device that can achieve the above object. [Means for solving the problem]

[0005] The present invention provides an imaging device including a broadcast use determination unit that determines whether a captured image signal captured by the imaging device itself and transmitted to a broadcast station is being used in a broadcast by the broadcast station, and a device setting unit that, when the broadcast use determination unit determines that the captured image signal is being used, sets to disallow changes to the settings or state of the imaging device itself. The present invention provides a control method for an imaging device in which a broadcast use determination unit determines whether a captured image signal captured by the imaging device itself and transmitted to a broadcast station is being used in a broadcast by the broadcast station, and when the broadcast use determination unit determines that the captured image signal is being used, a device setting unit sets to disallow changes to the settings or state of the imaging device itself. When the broadcast use determination unit determines that the captured image signal is being used, the device setting unit sets to disallow changes to the settings or state of the imaging device itself. The present invention provides an imaging device including a broadcast use determination unit that determines whether a captured image signal captured by the imaging device itself and transmitted to a broadcast station is being used in a broadcast by the broadcast station, and a device setting unit that, when the broadcast use determination unit determines that the captured image signal is being used, sets to disallow changes to the settings or state of the imaging device itself.

[0006] According to the imaging device and the control method of the imaging device of the present invention, the broadcast station can operate appropriately according to whether it is broadcasting the image signal of the subject being photographed by the imaging device itself. The present invention provides a control method for an imaging device in which a broadcast use determination unit determines whether a captured image signal captured by the imaging device itself and transmitted to a broadcast station is being used in a broadcast by the broadcast station, and when the broadcast use determination unit determines that the captured image signal is being used, a device setting unit sets to disallow changes to the settings or state of the imaging device itself. When the broadcast use determination unit determines that the captured image signal is being used, the device setting unit sets to disallow changes to the settings or state of the imaging device itself. The present invention provides a control method for an imaging device in which a broadcast use determination unit determines whether a captured image signal captured by the imaging device itself and transmitted to a broadcast station is being used in a broadcast by the broadcast station, and when the broadcast use determination unit determines that the captured image signal is being used, a device setting unit sets to disallow changes to the settings or state of the imaging device itself.

Effects of the Invention

[0007] According to the imaging device and the control method of the imaging device of the present invention, the broadcast station can operate appropriately according to whether it is broadcasting the image signal of the subject being photographed by the imaging device itself. According to the imaging device and the control method of the imaging device of the present invention, the broadcast station can operate appropriately according to whether it is broadcasting the image signal of the subject being photographed by the imaging device itself.

Brief Description of the Drawings

[0008]

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Embodiments for Carrying Out the Invention

[0009] Hereinafter, the imaging device and the control method of the imaging device according to each embodiment will be described with reference to the accompanying drawings. explain.

[0010] <First Embodiment> FIG. 1 shows a captured image of a subject taken by an imaging device arranged at a relay site (shooting site). This is a conceptual diagram showing how an image signal is transmitted to a broadcasting station via a network. In Fig. 1 the photographer 110 is video-recording the reporter 1 20, who is the subject, at the relay site using the imaging device 100. The captured image signal generated by the imaging device 100 is transmitted to the broadcasting station 300 via the network 200. The captured image V100 shows one frame of the captured image signal transmitted to the broadcasting station 300. The network 200 is typically the Internet .

[0011] The switch installed in the broadcasting station 300 receives the captured image signal transmitted from the imaging device 100. The switch may receive the captured image signal of the subject photographed by the imaging device arranged in the broadcasting station 300, or the captured image signal of the subject photographed by the imaging device arranged at another relay site . Among the multiple captured image signals received, the switch broadcasts the selected captured image signal as a television signal .

[0012] The radio tower 350 transmits radio waves based on the television signal supplied from the broadcasting station 300. The television receiver 400 installed at home displays the television signal as an image based on the radio waves received by the antenna 450. If the switch selects the captured image signal transmitted from the imaging device 100, the same image as the captured image V100 will be displayed on the television receiver 400 .

[0013] Note that the captured image V100 may be processed at the broadcasting station 300, such as by superimposing subtitles, and the image displayed on the television receiver 400 and the captured image V100 are not necessarily exactly the same. For ease of understanding, in Fig. 1, the timing of transmitting the captured image V100 and ​​​​​​​ The television receiver 400 ignores the deviation from the timing at which it displays an image, and regards the captured image V 100 as the same image as the image displayed on the television receiver 400.

[0014] The broadcasting station 300 transmits the image signal being broadcast as a return image signal to the imaging device 100 via the network 200. The return image V300 indicates one frame of the return image signal transmitted from the broadcasting station 300 to the imaging device 1 00. Here too, for ease of understanding, the temporal deviation between the captured image V100 and the return image V300 is ignored, and the captured image V100 and the return image V300 are regarded as the same image. By the imaging device 100 displaying the return image signal on a monitor described later, the photographer 1

[0015] 10 can confirm whether the imaging device 100 is broadcasting the image signal of the subject (reporter 120) being photographed.

[0016] FIG. 2 shows a specific configuration example of the imaging device 100. Each part of the imaging device 100 is connected to each other by a bus 20. The lens 11 causes light from the subject to enter the imaging element 12. The lens 11 may include a plurality of lenses. The lens 11 has a removal button 11B for removing the lens 11 from the housing of the imaging device 100. The removal button 11 B has a locking mechanism, and the control unit 25 is configured to activate and release the lock by the locking mechanism. When the removal button 11B is pressed, the control unit 2 5 may be configured to be notified of that fact.

[0017] The imaging device 12 is a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The imaging device 12 generates a photographed image signal by photographing a subject and supplies it to the image processing unit 15. The battery 13 supplies power to each part of the imaging device 100. The battery 13 has a removal button 13B for removing the battery 13 from the housing of the imaging device 100. The removal button 13B has a locking mechanism, and the control unit 25 is configured to activate and release the lock by the locking mechanism. The control unit 25 is configured to be notified when the removal button 13B is pressed. For the locking mechanism of the removal button 11B of the lens 11 and the removal button 13B of the battery 13, and the configuration for activating and releasing the lock by the locking mechanism, a configuration as described in Patent Document 2 can be adopted. Any locking mechanism other than the locking mechanism described in Patent Document 2 can be adopted as the locking mechanism of the removal button 11B of the lens 11 and the removal button 13B of the battery 13.

[0018] The thermometer 24 measures the temperature inside the imaging device 100. The fan 14 rotates based on an instruction from the control unit 25 to cool the imaging device 100. In addition to the photographed image signal, the image processing unit 15 is supplied with a return image signal received by the communication unit 19 from the broadcasting station 300. The image processing unit 15 processes the photographed image signal and the return image signal.

[0019]

[0020]

[0021] ​​​​​​​​​​​​It is processed and supplied to the monitor 21. The monitor 21 displays the captured image and the return image. The monitor 21 is composed of a touch panel. The recording and playback unit 17 may record the captured image signal processed by the image processing unit 15. The recording medium 170 is, as an example, a memory card composed of a flash memory.

[0022] The microphone 22 and the speaker 23 are built into the imaging device 100. The microphone 22 is provided for the photographer 110 to transmit voice to the staff such as the director of the broadcasting station 300. The speaker 23 is provided for the photographer 110 to hear the voice transmitted from the staff. The microphone 22 and the speaker 23 constitute a communication unit for the photographer 110 to communicate with the staff of the broadcasting station 30 0.

[0023] The voice signal of the voice collected by the microphone 22 is processed by the voice processing unit 16. The communication unit 19 transmits the voice signal from the microphone 22 to the broadcasting station 300. The voice processing unit 16 receives and processes the voice signal received by the communication unit 19 from the broadcasting station 300 and supplies it to the speaker 23.

[0024] As shown in FIG. 1, the reporter 120 is holding the microphone 122 and speaking. The microphone 122 is connected to the external input terminal 26, and the voice signal of the voice emitted by the reporter 120 may be supplied to the imaging device 100, or may be supplied to the imaging device 100 wirelessly. The voice processing unit 16 processes the voice signal of the voice collected by the microphone 22. The recording and playback unit 17 may record the voice signal processed by the voice processing unit 16 on the recording medium 170.

[0025] The communication unit 19 transmits the captured image signal and the audio signal when the subject is being video-recorded to the broadcasting station 3 00.

[0026] The acceleration sensor 18 detects the acceleration of the imaging device 100 and supplies the detected acceleration to the control unit 25 . In the first embodiment, the acceleration sensor 18 may be omitted.

[0027] The control unit 25 functionally includes a broadcast use determination unit 251, a device setting unit 252, and a display control unit 253. The control unit 25 can be configured by a microcomputer or a microprocessor .

[0028] Using the flowchart shown in FIG. 3, the operation of the imaging device 100 according to the first embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the first embodiment will be described. In FIG. 3, the control unit 25 controls the imaging device 100 to transmit the captured image signal in step S11. The control unit 25 controls the imaging device 100 to receive the return image signal transmitted from the broadcasting station 300 in step S12.

[0029] The control unit 25 (broadcast use determination unit 251) determines in step S13 whether the return image includes the transmission image. The transmission image is the image of the captured image signal transmitted from the imaging device 100 to the broadcasting station 300. The control unit 25 can determine whether the return image includes the transmission image by analyzing both the transmission image and the return image. It is possible to determine whether the return image includes the transmission image by analyzing both the transmission image and the return image. The control unit 25 may perform pattern matching between the transmission image and the return image to determine whether they match. The control unit 25 may analyze the image histograms of the transmission image and the return image. ​​​​​​Generate grams and determine whether they match based on whether the image histograms approximately match This may be done

[0030] That is, the broadcast use determination unit 251 determines whether the captured image signal captured by its own imaging device 100 and transmitted to the broadcasting station 30 0 is being used in the broadcast by the broadcasting station 300

[0031] If the transmission image is included in the return image in step S13 (YES), the control unit 25( device setting unit 252) sets, in step S14, the setting change of the imaging device 100 and the replacement of the lens 11 and the battery 13 to be not permitted. The replacement of the lens 11 and the battery 13 corresponds to a change in the state of the imaging device 100. If the transmission image is not included in the return image( NO), the control unit 25 (device setting unit 252) sets, in step S15, the setting change of the imaging device 100 and the replacement of the lens 11 and the battery 13 to be permitted

[0032] Although not shown in FIG. 3, if the transmission image is included in the return image in step S13 the control unit 25 (display control unit 253) may display on the monitor 21 that the captured image by the imaging device 100 is being used in the broadcast

[0033] The control unit 25 determines in step S16 whether the power of the imaging device 100 has been turned off If the power is not turned off (NO), the control unit 25 returns the process to step S11 and repeats the processes after step S11 If the power is turned off (YES), the control unit 25 ends the process

[0034] FIG. 4 shows that the transmission image is included in the return image and the captured image by the imaging device 100 is being broadcast ​​​Shows an example of an image displayed on the monitor 21 when it is determined that it is in use during a live broadcast . The image processing unit 15 superimposes, on the monitor 21, a reduced return image V300s obtained by reducing the return image V300 on the captured image V100 as a sub-screen . The display control unit 25 3 displays, for example, in the vicinity of the upper right corner of the monitor 21, additional information 231 including the characters "In live broadcast use" indicating that the captured image V100 is in use during a live broadcast .

[0035] Regardless of whether the captured image V100 is in use during a live broadcast or not, the display control unit 253 displays, for example, a setting menu button 232 in the vicinity of the lower left corner of the monitor 21. When the photographer 110 touches the setting menu button 232 while the setting menu of the imaging device 100 is not displayed on the monitor 21, the display control unit 253 displays a setting menu 233 on the monitor 21 as shown in FIG. 5. When the photographer 110 touches the setting menu button 232 while the setting menu 233 is displayed on the monitor 21, the display control unit 253 cancels the setting menu 233 . . . . .

[0036] In the example shown in FIG. 5, the setting menu 233 is a menu for selecting a compression encoding method when compressing and encoding a captured image signal and a bit rate when compressing and encoding. As an example, the setting menu 233 includes a menu for selecting between H.264 and H.265 and a menu for selecting a bit rate from 670 kbps, 1240 kbps, 3200 kbps, and 4600 kbps . . . .

[0037] Assume that the imaging device 100 generates a captured image signal by selecting H.264 as the compression encoding method and 1240 k bps as the bit rate. When the captured image by the imaging device 100​ When in use for broadcasting, the control unit 25 (device setting unit 252) sets to disallow changes in the compression encoding method and the bit rate setting. In FIG. 5, the selected H.264 and all except 1240 kbps corresponding to H. 264 are in an inactive state and the setting cannot be changed.

[0038] According to the imaging device 100 and the control method of the imaging device of the first embodiment, the broadcasting station 300 can operate appropriately according to whether the imaging device 100 is broadcasting the image signal of the subject being photographed. Specifically, if the image signal of the subject being photographed by the imaging device 100 is being broadcast, the lens 11 cannot be replaced and the battery 13 cannot be replaced. Therefore, it is possible to avoid the situation where the broadcast image signal is interrupted due to the photographer 11 0 accidentally replacing the lens 11 or the battery 13 and changing the state of the imaging device 100. And, if the image signal of the subject being photographed by the imaging device 100 is being broadcast, the compression encoding method or the bit rate setting cannot be changed. Therefore, it is possible to avoid the situation where the broadcast

[0039] image freezes due to the photographer 110 accidentally changing one of the settings and changing the settings of the imaging device 100. Also, if the image signal of the subject being photographed by the imaging device 100 is being broadcast, the compression encoding method or the bit rate setting cannot be changed. Therefore, it is possible to avoid the situation where the broadcast image freezes due to the photographer 110 accidentally changing one of the settings and changing the settings of the imaging device 100.

[0040] <Second Embodiment> The imaging device 100 of the second embodiment is configured as shown in FIG. 2. In the second embodiment, the acceleration sensor 18 can be omitted. In the first embodiment, the temporal shift between the photographed image V100 and the return image V300 is ignored, but actually, there is a slight temporal shift between the two. The second embodiment is such that the photographed image V100 and the return image V300 are temporally slightly shifted. Even if they are temporally misaligned, there are few misjudgments, and it is determined whether the transmission image is included in the return image is configured to do so.

[0041] Using the flowchart shown in FIG. 6, the operation of the imaging device 100 according to the second embodiment and the processing by the control method of the imaging device executed by the imaging device 100 according to the second embodiment will be described. In FIG. 6 the control unit 25 sets a predetermined time in step S21. The predetermined time is the time corresponding to the temporal misalignment between the captured image V100 and the return image V300, which are the same frame is. is.

[0042] As an example, the control unit 25 can set a predetermined time as follows. The control unit 25 sends a Ping request based on ICMP (Internet Control Message Protocol) to the broadcast station 300, and multiplies the time from the timing of sending the Ping request to the timing of receiving the Ping response by a correction coefficient to obtain the maximum delay time. The control unit 25 sets the maximum delay time as the predetermined time. sets the maximum delay time as the predetermined time. sets the maximum delay time as the predetermined time.

[0043] In step S22, the control unit 25 controls the imaging device 100 to transmit the captured image signal. In step S23, the control unit 25 controls the recording and reproducing unit 17 to record the captured image signal on the recording medium 170. In step S24, the control unit 25 controls the imaging device 100 to receive the return image signal transmitted from the broadcast station 300. controls the recording and reproducing unit 17 to record the captured image signal on the recording medium 170. In step S24, the control unit 25 controls the imaging device 100 to receive the return image signal transmitted from the broadcast station 300. controls the recording and reproducing unit 17 to record the captured image signal on the recording medium 170. In step S24, the control unit 25 controls the imaging device 100 to receive the return image signal transmitted from the broadcast station 300. controls the imaging device 100 to receive the return image signal transmitted from the broadcast station 300.

[0044] In step S25, the control unit 25 determines whether the transmission image (captured image) is included in the return image. If the transmission image is included in the return image (YES), the control unit 25 If the transmission image is included in the return image (YES), the control unit 25 In step S27, the settings of the image capturing device 100 are changed and the lens 11 and battery 13 are turned on. Set exchange to not permitted. If the return image does not include the transmission image (NO), In step S26, the above-mentioned image data recorded on the recording medium 170 is added to the return image. It is determined whether any of the transmitted images (taken images) from a predetermined time ago is included.

[0045] If the above-mentioned predetermined time is a time for 10 frames, the control unit 25 The frame to be judged and any of the frames up to 10 frames before that recorded on the recording medium 170 It is only necessary to determine whether or not any of the frames match.

[0046] In step S26, the return image includes the image recorded on the recording medium 170 up to the predetermined time before. If any of the transmission images is included (YES), the control unit 25 performs , changing the settings of the imaging device 100 and replacing the lens 11 and the battery 13 are prohibited. The return image may include any of the transmitted images up to a predetermined time before recorded on the recording medium 170. If the image is not included (NO), the control unit 25 in step S28 Changing the settings and replacing the lens 11 and battery 13 are permitted.

[0047] In step S29, the control unit 25 determines whether the power of the imaging device 100 is turned off. If the power is not turned off (NO), the control unit 25 returns the process to step S22. The process from step S22 onward is repeated. If the power is turned off (YES), the control unit 25 ends the process. Terminate.

[0048] According to the imaging device 100 and the control method for the imaging device of the second embodiment, the advantages of the first embodiment are obtained. In addition to the effects, assuming that the captured image V100 and the return image V300 are temporally shifted even so, there are few misjudgments, and it is possible to determine whether the transmission image is included in the return image.

[0049] <Third Embodiment> The imaging device 100 of the third embodiment is configured as shown in FIG. 2. Even in the third embodiment the acceleration sensor 18 can be omitted. In FIG. 1, an example is shown in which the broadcasting station 300 broadcasts the frame of the captured image signal generated by the imaging device 1 00 as it is. There may be a case where the broadcasting station 300 reduces the frame of the captured image signal generated by the imaging device 10 0 and superimposes it as a sub-screen within the frame of the captured image signal captured by another imaging device.

[0050] In FIG. 7, the broadcasting station 300 broadcasts a television signal in which the frame of the captured image signal generated by the imaging device 100 is reduced and superimposed as a sub-screen within the frame of the captured image signal captured by the imaging device arranged in the broadcasting station 300. Therefore, the broadcasting station 3 00 transmits the return image V300 in which the reduced captured image V100s obtained by reducing the captured image V100 is superimposed as a sub-screen to the imaging device 100.

[0051] Using the flowchart shown in FIG. 8, the operation of the imaging device 100 of the third embodiment and the processing by the control method of the imaging device executed by the imaging device 100 of the third embodiment will be described. In FIG. 8 the control unit 25 (broadcast use determination unit 251) extracts the feature points of the captured image at step S31 and records the extracted feature point group in the recording medium 170 or a RAM (not shown). The control unit 25 extracts the feature points of the captured image in each frame of the captured image signal. ​​​​​​​

[0052] FIG. 9 conceptually shows the feature point group extracted by the control unit 25 from the captured image V100. The black circles indicate the feature points. The control unit 25 extracts, as feature points, portions where the luminance changes significantly within the frame or corner portions of the subject.

[0053] In step S32, the control unit 25 controls the imaging device 100 to transmit the captured image signal. In step S33, the control unit 25 controls the imaging device 100 to receive the return image signal transmitted from the broadcasting station 300. The control unit 25 (broadcast use determination unit 251) extracts, in step S34, the feature points of the return image and records the extracted feature point group in the recording medium 1 70 or in a RAM (not shown). The control unit 25 extracts the feature points of the return image in each frame of the return image.

[0054] FIG. 10 conceptually shows the feature point group extracted by the control unit 25 from the return image V300. The black circles indicate the feature points. The control unit 25 extracts, as feature points, portions where the luminance changes significantly within the frame or corner portions of the subject.

[0055] In step S35, the control unit 25 determines whether the feature point group of the return image includes a feature point group similar to the feature point group of the transmission image. If the feature point group of the return image includes a feature point group similar to the feature point group of the transmission image (YES), the control unit 25, in step S36, sets the setting change of the imaging device 100 and the replacement of the lens 11 and the battery 13 to be prohibited. If the feature point group of the return image does not include a feature point group similar to the feature point group of the transmission image (NO), the control unit 25, in step S37, allows the setting change of the imaging device 100 and the replacement of the lens 11 and the battery 13. 13.​​​​​​ Set the replacement of Li 13 to permitted.

[0056] In step S38, the control unit 25 determines whether the power of the imaging device 100 has been turned off. If the power is not turned off (NO), the control unit 25 returns the process to step S31 and repeats the processes after step S31. If the power is turned off (YES), the control unit 25 ends the process. End it.

[0057] According to the imaging device 100 and the control method of the imaging device of the third embodiment, in addition to the effects achieved by the first embodiment, the following effects are achieved. Even when the captured image signal generated by the imaging device 100 is not directly transmitted but is superimposed as a sub-screen within the frame of another captured image signal and broadcast, problems caused by the replacement of the lens 11 or the battery 13 and the change in the settings of the imaging device 100 can be avoided.

[0058] <Fourth Embodiment> The imaging device 100 of the fourth embodiment is configured as shown in FIG. 2. In the fourth embodiment, an acceleration sensor 18 is required. When the broadcasting station 300 is broadcasting the captured image signal generated by the imaging device 100, if the photographer 110 suddenly moves the imaging device 100, the viewer will feel uncomfortable. The fourth embodiment prevents the photographer 110 from suddenly moving the imaging device 100 and avoids the viewer from feeling uncomfortable.

[0059] As shown in FIG. 11, the control unit 25 has a warning processing unit 254 as a functional configuration. The warning processing unit 254 holds in advance a limit value to be described later, or the control unit 25 sets the limit value.

[0060] Using the flowchart shown in FIG. 12, the operation of the imaging device 100 according to the fourth embodiment and the processing by the control method of the imaging device executed by the imaging device 100 according to the fourth embodiment will be described. In FIG. 12 the control unit 25 sets a limit value for the detection value of the acceleration sensor 18 that allows the imaging device 100 to be subjected to in step S41. In step S42, the control unit 25 controls the imaging device 100 to transmit a captured image signal. In step S43, the control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300. The control unit 25 (broadcast use determination unit 251) determines in step S44 whether the transmitted image is included in the return image. If the transmitted image is not included in the return image (NO), the control unit 25 transfers the process to step S47.

[0061] If the transmitted image is included in the return image in step S44 (YES), the control unit 25 (warning processing unit 254) determines in step S45 whether the detection value of the acceleration sensor 18 exceeds the limit value. If the detection value of the acceleration sensor 18 does not exceed the limit value (NO), the control unit 25 transfers the process to step S47. If the detection value of the acceleration sensor 18 exceeds the limit value (YES), the control unit 25 (warning processing unit 254) executes a warning process in step S46 and transfers the process to step S47.

[0062]

[0063] In step S47, the control unit 25 determines whether the power of the imaging device 100 has been turned off. If the power has not been turned off (NO), the control unit 25 returns the process to step S42 and starts ​​​​​​​​​​​​​Repeat the processes after step S42. If the power is turned off (YES), the control unit 25 ends the process.

[0064] Although not shown in FIG. 12, when the transmission image is included in the return image the control unit 25 (device setting unit 252) may set the change of the settings of the imaging device 100 and the replacement of the lens 11 and the battery 13 to be prohibited.

[0065] FIG. 13A shows a first example of the warning process in step S46. The warning processing unit 254 controls the display control unit 253 to blink the additional information 231 when the detected value of the acceleration sensor 18 exceeds the limit value. FIG. 13B shows a second example of the warning process in step S46. The warning processing unit 254 controls the display control unit 253 to display warning information 234 including, for example, the character "Please do not move the camera" on the monitor 21 when the detected value of the acceleration sensor 18 exceeds the limit value.

[0066] <Fifth Embodiment> The imaging device 100 according to the fifth embodiment is configured as shown in FIG. 14. The imaging device 100 includes a plurality of slots for mounting batteries and may use a plurality of batteries. In FIG. 14, the parts not shown are the same as those in FIG. 2. In the fifth embodiment, the acceleration sensor 18 may be omitted.

[0067] In FIG. 14, the imaging device 100 includes two slots, namely slot 1 and slot 2. Battery 131 is mounted in slot 1, and battery 132 is mounted in slot 2. Batteries 131 and 132 are inserted into the housing of the imaging device 100 with batteries 131 and 132 ​​​​It has a removal button 13B for removal from the body. The battery 131 or 132 supplies power to each part of the imaging device 100.

[0068] The control unit 25 has a remaining amount acquisition unit 255 that acquires the remaining amount of power of the batteries 131 and 132, and a button operation determination unit 256 that determines whether the removal button 13B of the batteries 131 and 132 has been operated.

[0069] Using the flowchart shown in FIG. 15, the operation of the imaging device 100 according to the fifth embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the fifth embodiment will be described. In FIG. 15, the control unit 25 controls the imaging device 100 to transmit a photographed image signal in step S51. The control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300 in step S52.

[0070] The control unit 25 (broadcast use determination unit 251) determines whether the transmitted image is included in the return image in step S53. If the transmitted image is included in the return image (YES), the control unit 25 (remaining amount acquisition unit 255) acquires the remaining amount of power of each battery (batteries 131 and 132) in step S54. If the batteries 131 and 132 are batteries having a circuit board that measures and outputs the remaining amount of power, the control unit 25 may acquire the remaining amount from the batteries 131 and 132. If the batteries do not have such a circuit board, the control unit 25 may measure the remaining amount based on the voltage value supplied from the batteries 131 and 132.

[0071] The control unit 25 (device setting unit 252) exchanges the battery with the maximum remaining amount in step S55. Disallow and set the replacement of batteries other than the battery with the largest remaining amount to be allowed. The control unit 25 (button operation determination unit 256) determines, in step S56, whether the removal button 13B of the battery with the largest remaining amount has been operated. If the removal button 13B of the battery with the largest remaining amount is operated (YES), the control unit 25 (display control unit 253) displays the replaceable batteries on the monitor 21 in step S57 and transfers the process to step S59.

[0072] On the other hand, if the transmission image is included in the return image in step S53 (NO), the control unit 25 (device setting unit 252) sets the replacement of all batteries to be allowed in step S58 and transfers the process to step S59. If the removal button 13B of the battery with the largest remaining amount is not operated in step S56 (NO), the control unit 25 transfers the process to step S59.

[0073] The control unit 25 determines, in step S59, whether the power of the imaging device 100 has been turned off. If the power has not been turned off (NO), the control unit 25 returns the process to step S51 and repeats the processes after step S51. If the power has been turned off (YES), the control unit 25 ends the process.

[0074] Although not shown in FIG. 15, when the transmission image is included in the return image, the control unit 25 (device setting unit 252) may set the setting change of the imaging device 100 and the replacement of the lens 11 to be not allowed.

[0075] According to the imaging device 100 and the control method of the imaging device of the fifth embodiment, the effects achieved by the first embodiment ​​​​​​In addition to the above effects, the following effects are achieved. If the transmission image is not included in the return image, any battery can be replaced. Even if the transmission image is included in the return image, batteries other than the battery with the largest remaining amount can be replaced. Therefore, according to the imaging device 100 and the control method of the imaging device of the fifth embodiment, long-time shooting is possible. Any battery can be replaced. Even if the transmission image is included in the return image, batteries other than the battery with the largest remaining amount can be replaced. Therefore, according to the imaging device 100 and the control method of the imaging device of the fifth embodiment, long-time shooting is possible.

[0076] <Sixth Embodiment> The imaging device 100 of the sixth embodiment is configured as shown in FIG. 2. In the sixth embodiment, the acceleration sensor 18 can be omitted. As shown in FIG. 16, the broadcasting station 300 broadcasts a captured image signal obtained by an imaging device disposed within the broadcasting station 300 capturing a subject, and does not broadcast the captured image signal generated by the imaging device 100. At this time, the captured image V100 and the return image V300 are different. As shown in FIG. 16, the broadcasting station 300 broadcasts a captured image signal obtained by an imaging device disposed within the broadcasting station 300 capturing a subject, and does not broadcast the captured image signal generated by the imaging device 100. At this time, the captured image V100 and the return image V300 are different. As shown in FIG. 16, the broadcasting station 300 broadcasts a captured image signal obtained by an imaging device disposed within the broadcasting station 300 capturing a subject, and does not broadcast the captured image signal generated by the imaging device 100. At this time, the captured image V100 and the return image V300 are different. As shown in FIG. 16, the broadcasting station 300 broadcasts a captured image signal obtained by an imaging device disposed within the broadcasting station 300 capturing a subject, and does not broadcast the captured image signal generated by the imaging device 100. At this time, the captured image V100 and the return image V300 are different. At this time, the captured image V100 and the return image V300 are different.

[0077] As shown in FIG. 17, the control unit 25 has a picture quality adjustment unit 257 as a functional configuration. In FIG. 17, parts not shown are the same as those in FIG. 2.

[0078] Using the flowchart shown in FIG. 18, the operation of the imaging device 100 of the sixth embodiment and the processing by the control method of the imaging device executed by the imaging device 100 of the sixth embodiment will be described. In FIG. 16, the control unit 25 controls the imaging device 100 to transmit a captured image signal in step S61. The control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300 in step S62. Using the flowchart shown in FIG. 18, the operation of the imaging device 100 of the sixth embodiment and the processing by the control method of the imaging device executed by the imaging device 100 of the sixth embodiment will be described. In FIG. 16, the control unit 25 controls the imaging device 100 to transmit a captured image signal in step S61. The control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300 in step S62. In FIG. 16, the control unit 25 controls the imaging device 100 to transmit a captured image signal in step S61. The control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300 in step S62. In FIG. 16, the control unit 25 controls the imaging device 100 to transmit a captured image signal in step S61. The control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300 in step S62. The control unit 25 (broadcast use determination unit 251) controls the imaging device 100 to receive a return image signal transmitted from the broadcasting station 300 in step S62.

[0079] ​Determine whether the image is included. If the transmitted image is included in the return image (YES) , the control unit 25 (image quality adjustment unit 257) adjusts the image quality of the captured image in step S64 and transfers the process to step S65. The control unit 25 adjusts the image quality so that the brightness of the captured image matches the brightness of the return image. The control unit 25 may further adjust the image quality so that the saturation of the captured image matches the saturation of the return image.

[0080] If the transmitted image is not included in the return image in step S63 (NO), the control unit 25 transfers the process to step S65.

[0081] Although not shown in FIG. 18, when the transmitted image is included in the return image , the control unit 25 (device setting unit 252) may set the setting change of the imaging device 100, the replacement of the lens 11 and the battery 13 to be prohibited.

[0082] The control unit 25 determines whether the power of the imaging device 100 has been turned off in step S65 . If the power is not turned off (NO), the control unit 25 returns the process to step S61 and repeats the process after step S61. If the power is turned off (YES), the control unit 25 ends the process .

[0083] According to the imaging device 100 and the control method of the imaging device of the sixth embodiment, in addition to the effects achieved by the first embodiment , the image quality of the captured image generated by the imaging device 100 and the captured image generated by another imaging device can be made substantially the same. Therefore, when the broadcasting station 300 switches and broadcasts the captured images generated by a plurality of imaging devices , it is possible to make it less likely to give viewers a sense of discomfort. .

[0084] <Seventh Embodiment> The imaging device 100 according to the seventh embodiment is configured as shown in FIG. 2. In the seventh embodiment, the acceleration sensor 18 can be omitted. The seventh embodiment reduces the power consumed by the imaging device 100. As shown in FIG. 19, the control unit 25 includes, as a functional configuration, a remaining amount acquisition unit 255 and a power mode setting unit 258.

[0085] Using the flowchart shown in FIG. 20, the operation of the imaging device 100 according to the seventh embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the seventh embodiment will be described. In FIG. 20, at step S71, the control unit 25 controls the imaging device 100 to transmit a captured image signal. At step S72, the control unit 25 controls the imaging device 100 to receive a return image signal transmitted from the

[0086] broadcast station 300. The control unit 25 (broadcast use determination unit 251) determines at step S73 whether the transmitted image is included in the return image. If the transmitted image is included in the return image (YES), the control unit 25 (power mode setting unit 258) sets the normal power mode at step S74 and shifts the process to step S78. The normal power mode is, for example, a

[0087] mode in which the brightness of the monitor 21 is set to the normal brightness. If the transmitted image is not included in the return image at step S73 (NO), the control unit 25 (remaining amount acquisition unit 255) acquires the remaining amount of power of the battery 13 at step S75. Subsequently, the control unit 25 determines at step S76 whether the remaining The unit 25 then transitions to step S74.

[0088] If the remaining power of the battery 13 is equal to or less than the predetermined value (YES) in step S76, the control In step S77, the power mode setting unit 258 sets the power saving mode. The process proceeds to step S78. The power saving mode is, for example, a mode in which the brightness of the monitor 21 is reduced. This mode makes the light darker than normal.

[0089] In step S78, the control unit 25 determines whether the power of the imaging device 100 is turned off. If the power is not turned off (NO), the control unit 25 returns the process to step S71. The process from step S71 onward is repeated. If the power is turned off (YES), the control unit 25 ends the process. Terminate.

[0090] Although not shown in FIG. 20, when a transmission image is included in a return image, The control unit 25 (device setting unit 252) changes the settings of the imaging device 100, the lens 11 and the camera. It is advisable to set the replacement of the battery 13 to not be permitted.

[0091] According to the imaging device 100 and the control method for the imaging device of the seventh embodiment, the effects of the first embodiment are achieved. In addition to the above-mentioned advantages, the following advantages are achieved: By dimming the brightness of the monitor 21 when the camera is not in use, the power consumption of the imaging device 100 is reduced. It can be reduced.

[0092] In FIG. 20, when the remaining power of the battery 13 is equal to or less than a predetermined value, the imaging device 10 0 is set to the power saving mode, but regardless of the remaining power of the battery 13, the imaging device The imaging device 100 may be set to the power saving mode. In this case, if the predetermined value in step S76 is set to 0, the imaging device 100 can be set to the power saving mode regardless of the remaining amount of power in the battery 13. Also, steps S75 and S76 may be omitted. The imaging device 100 according to the eighth embodiment is configured as shown in FIG. 2. In the eighth embodiment, the acceleration sensor 18 can be omitted. The eighth embodiment prevents a call between the photographer 110 and the staff of the broadcasting station 300 by the communication unit including the microphone 22 and the speaker 23 from being superimposed as noise on the audio signal transmitted from the imaging device 100 to the broadcasting station 300. In the eighth embodiment, there may be a second imaging device that may be additionally used at the relay site in addition to the imaging device 100. As shown in FIG. 21, the control unit 25 has a call setting unit 259 and a device addition setting unit 2510 as functional configurations.

[0093] <Eighth Embodiment> The imaging device 100 according to the eighth embodiment is configured as shown in FIG. 2. In the eighth embodiment, the acceleration sensor 18 can be omitted. The eighth embodiment prevents a call between the photographer 110 and the staff of the broadcasting station 300 by the communication unit including the microphone 22 and the speaker 23 from being superimposed as noise on the audio signal transmitted from the imaging device 100 to the broadcasting station 300. In the eighth embodiment, there may be a second imaging device that may be additionally used at the relay site in addition to the imaging device 100. As shown in FIG. 21, the control unit 25 has a call setting unit 259 and a device addition setting unit 2510 as functional configurations. The eighth embodiment prevents a call between the photographer 110 and the staff of the broadcasting station 300 by the communication unit including the microphone 22 and the speaker 23 from being superimposed as noise on the audio signal transmitted from the imaging device 100 to the broadcasting station 300. In the eighth embodiment, there may be a second imaging device that may be additionally used at the relay site in addition to the imaging device 100. As shown in FIG. 21, the control unit 25 has a call setting unit 259 and a device addition setting unit 2510 as functional configurations. Using the flowchart shown in FIG. 22, the operation of the imaging device 100 according to the eighth embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the eighth embodiment will be described. In FIG. 22, the control unit 25 (device addition setting unit 2510) sets the presence or absence of use of the second imaging device in step S81 based on the setting by an operation unit (not shown). The control unit 25 controls the imaging device 100 to transmit a photographed image signal in step S82. The control unit 25 receives a return image transmitted from the broadcasting station 300 in step S83.

[0094] As shown in FIG. 21, the control unit 25 has a call setting unit 259 and a device addition setting unit 2510 as functional configurations. As shown in FIG. 21, the control unit 25 has a call setting unit 259 and a device addition setting unit 2510 as functional configurations.

[0095] Using the flowchart shown in FIG. 22, the operation of the imaging device 100 according to the eighth embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the eighth embodiment will be described. In FIG. 22, the control unit 25 (device addition setting unit 2510) sets the presence or absence of use of the second imaging device in step S81 based on the setting by an operation unit (not shown). Using the flowchart shown in FIG. 22, the operation of the imaging device 100 according to the eighth embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the eighth embodiment will be described. In FIG. 22, the control unit 25 (device addition setting unit 2510) sets the presence or absence of use of the second imaging device in step S81 based on the setting by an operation unit (not shown). In FIG. 22, the control unit 25 (device addition setting unit 2510) sets the presence or absence of use of the second imaging device in step S81 based on the setting by an operation unit (not shown). In FIG. 22, the control unit 25 (device addition setting unit 2510) sets the presence or absence of use of the second imaging device in step S81 based on the setting by an operation unit (not shown).

[0096] The control unit 25 controls the imaging device 100 to transmit a photographed image signal in step S82. The control unit 25 controls the imaging device 100 to transmit a photographed image signal in step S82. Control the imaging device 100 to receive signals. The control unit 25 (broadcast use determination unit 251) determines whether the transmitted image is included in the return image in step S84.

[0097] If the transmitted image is included in the return image in step S84 (YES), the control unit 25 ( call setting unit 259) turns off the call unit in step S85 and transfers the process to step S88 To turn off the call unit means to make the microphone 22 and the speaker 23 inoperable. Note that when the photographer 110 is wearing earphones or headphones, it is not necessary to make the earphones or headphones inoperable.

[0098] If the transmitted image is not included in the return image in step S84 (NO), the control unit 25 (device addition setting unit 2510) determines whether the second imaging device is set to the used state in step S86. If the second imaging device is set to the used state ( YES), the control unit 25 transfers the process to step S85. When the second imaging device is used, turning off the call unit in step S85 is because when the second imaging device is in use, the call by the call unit of the imaging device 100 may be superimposed as noise on the audio signal transmitted by the second imaging device.

[0099] If the second imaging device is not set to the used state in step S86 (NO), the control unit 25 turns on the call unit in step S87 and transfers the process to step S88 To turn on the call unit means to make the microphone 22 and the speaker 23 operable. By turning on the call unit, the photographer 110 can talk to the staff of the broadcasting station 300. This becomes possible.

[0100] In step S88, the control unit 25 determines whether the power of the imaging device 100 has been turned off. If the power is not turned off (NO), the control unit 25 returns the process to step S82 and repeats the processes after step S82. If the power is turned off (YES), the control unit 25 ends the process. Although not shown in FIG. 22, when the transmission image is included in the return image, the control unit 25 (device setting unit 252) may set the change of the settings of the imaging device 100, the replacement of the lens 11 and the battery 13 to be prohibited.

[0101]

[0102] According to the imaging device 100 and the control method of the imaging device of the eighth embodiment, in addition to the effects achieved by the first embodiment, it is possible to prevent noise from being superimposed on the audio signal transmitted to the broadcasting station 300.

[0103] <Ninth Embodiment> The imaging device 100 of the ninth embodiment is configured as shown in FIG. 2. In the ninth embodiment, the acceleration sensor 18 can be omitted. The ninth embodiment controls the rotation speed of the fan 14. As shown in FIG. 23, the control unit 25 has a temperature acquisition unit 2511 and a fan rotation mode setting unit 2512 as functional configurations.

[0104] Using the flowchart shown in FIG. 24, the operation of the imaging device 100 of the ninth embodiment and the processes by the control method of the imaging device executed by the imaging device 100 of the ninth embodiment will be described. In FIG. 24, in step S91, the control unit 25 causes the imaging device 1 to transmit a photographed image signal. Control 00. In step S92, the control unit 25 controls the imaging device 100 to receive the return image signal transmitted from the broadcasting station 300.

[0105] The control unit 25 (broadcast use determination unit 251) determines in step S93 whether the transmission image is included in the return image. If the transmission image is included in the return image (YES), the control unit 25 (fan rotation mode setting unit 2512) sets the rotation speed of the fan 14 to a relatively low rotation speed in the low rotation mode in step S94, and transfers the process to step S98. By rotating the fan 14 in the low rotation mode, it is possible to reduce the noise from the sound collected by the microphone 122 due to the sound of the fan 14 being transmitted to the voice signal sent to the broadcasting station 300.

[0106] If the transmission image is not included in the return image in step S93 (NO), the control unit 25 (temperature acquisition unit 2511) acquires in step S95 the internal temperature of the imaging device 100 measured by the thermometer 24. Subsequently, the control unit 25 (temperature acquisition unit 2511) determines in step S96 whether the internal temperature of the imaging device 100 is equal to or higher than a predetermined temperature. If the internal temperature of the imaging device 100 is not equal to or higher than the predetermined temperature (NO), the control unit 25 transfers the process to step S94.

[0107] If the internal temperature of the imaging device 100 is equal to or higher than the predetermined temperature in step S96 (YES), the control unit 25 (fan rotation mode setting unit 2512) sets the rotation speed of the fan 14 to a relatively high rotation speed in the high rotation mode in step S97, and transfers the process to step S98.

[0108] In step S98, the control unit 25 determines whether the power of the imaging device 100 has been turned off. If the power is not turned off (NO), the control unit 25 returns the process to step S91 and repeats the processes after step S91. If the power is turned off (YES), the control unit 25 ends the process.

[0109] Although not shown in FIG. 24, when the transmission image is included in the return image, the control unit 25 (device setting unit 252) may set the change of the settings of the imaging device 100, the replacement of the lens 11, and the battery 13 to be prohibited.

[0110] According to the imaging device 100 and the control method of the imaging device of the ninth embodiment, in addition to the effects achieved by the first embodiment, when the captured image signal generated by the imaging device 100 and the audio signal picked up by the microphone 122 are being broadcast, it is possible to reduce the situation where the noise of the fan 14 enters the audio signal as noise.

[0111] <Tenth Embodiment> FIG. 25 is a conceptual diagram showing a state in which, as in FIG. 1, a photographer 110 transmits a captured image signal of a reporter 120, which is a subject, captured by an imaging device 100 to a broadcasting station 300 via a network 200. In the tenth embodiment, the broadcasting station 300 transmits the broadcast image signal as a first return image signal and a second return image signal to the imaging device 100 via the network 200. The first return image signal is a return image signal with a relatively low compression ratio. The first return image signal may be a return image signal with relatively high image quality. For example, the first return

[0112] ​​​​​​​​​​​​The image signal is a return image signal obtained by compressing, in the H.264 compression encoding method, the image signal being broadcast by the broadcasting station 300. The second return image signal is a return image signal with a relatively high compression ratio. The second return image signal may be a return image signal with relatively low image quality. For example, the second return image signal is a return image signal obtained by compressing, in the H.265 compression encoding method, the image signal being broadcast by the broadcasting station 300.

[0113] The first return image V300H shows one frame of the first return image signal transmitted from the broadcasting station 300 to the imaging device 100. The second return image V300L shows one frame of the second return image signal transmitted from the broadcasting station 300 to the imaging device 100.

[0114] As shown in FIG. 26, the control unit 25 functionally includes a return image reception determination unit 2513.

[0115] Using the flowchart shown in FIG. 27, the operation of the imaging device 100 according to the tenth embodiment and the processing by the imaging device control method executed by the imaging device 100 according to the tenth embodiment will be described. In FIG. 27, the control unit 25 controls the imaging device 100 to transmit the captured image signal in step S101. In step S102, the control unit 25 controls the imaging device 100 to receive the first and second return image signals transmitted from the broadcasting station 300.

[0116] The control unit 25 (return image reception determination unit 2513) determines in step S103 whether the first return image is interrupted. If the first return image is not interrupted (NO) ) The control unit 25 (broadcast use determination unit 251) analyzes, in step S104, whether the transmission image is included in the return image based on the first return image, and transfers the process to step S 107.

[0117] If the first return image is interrupted in step S103 (YES), the control unit 25 (return image reception determination unit 2513) determines, in step S105, whether the second return image is interrupted. If the second return image is not interrupted (NO), the control unit 25 (broadcast use determination unit 251) analyzes, in step S106, whether the transmission image is included in the return image based on the second return image, and transfers the process to step S107.

[0118] The control unit 25 (broadcast use determination unit 251) determines, in step S107, whether the transmission image is included in the return image (the first return image or the second return image). If the transmission image is included in the return image (YES), the control unit 25 (device setting unit 252) prohibits, in step S108, changing the settings of the imaging device 100 and replacing the lens 11 and the battery 13, and transfers the process to step S111. If the transmission image is not included in the return image (NO), the control unit 25 (device setting unit 252) permits, in step S10 9, changing the settings of the imaging device 100 and replacing the lens 11 and the battery 13, and transfers the process to step S111.

[0119] If the second return image is interrupted in step S105 (YES), the control unit 25 (broadcast use determination unit 251) determines, in step S110, whether the first and second return images are interrupted. Before that, maintain the determination result as to whether the transmission image is included in the return image, and move the process to step S111.

[0120] In step S111, the control unit 25 determines whether the power of the imaging device 100 has been turned off. If the power has not been turned off (NO), the control unit 25 returns the process to step S101 and repeats the processes after step S101. If the power has been turned off (YES), the control unit 25 ends the process.

[0121] According to the imaging device 100 and the control method of the imaging device of the tenth embodiment, in addition to the effects achieved by the first embodiment, the following effects are achieved. Even if the state of the network 200 is unstable and the first return image is interrupted, the second return image is less likely to be interrupted because it has a higher compression rate than the first return image. Therefore, it is possible to determine whether the captured image by the imaging device 100 is being used in a broadcast using the second return image.

[0122] Furthermore, even if the first and second return images are interrupted, the control unit 25 can maintain the determination result as to whether the transmission image is included in the return image before the first and second return images are interrupted.

[0123] The present invention is not limited to the first to tenth embodiments described above, and various modifications can be made without departing from the gist of the present invention. The first to tenth embodiments can be arbitrarily combined.

Explanation of Signs

[0124] 11 Lens 11B, 13B Removal Button 12 Image Sensor ​​​​​​​​13,131,132 Battery 14 Fan 15 Image processing unit 16 Audio processing unit 17 Recording and playback unit 18 Acceleration sensor 19 Communication unit 20 Bus 21 Monitor 22,122 Microphone 23 Speaker 24 Thermometer 25 Control unit 26 External input terminal 100 Imaging device 110 Photographer 120 Reporter 170 Recording medium 200 Network 251 Broadcast use determination unit 252 Device setting unit 253 Display control unit 254 Warning processing unit 255 Remaining amount acquisition unit 256 Button operation determination unit 257 Image quality adjustment unit 258 Power mode setting unit 259 Call setting unit 300 Broadcasting station 2510 Device additional setting unit 2511 Temperature acquisition unit 2512 Fan rotation mode setting unit 2513 Return image reception determination unit

Claims

1. The image signal that the imaging device captures the subject and transmits to the broadcasting station is broadcast by the broadcasting station. A broadcast use determination unit that performs image analysis to determine whether the camera is in use or not by determining whether the camera's own captured image signal is included in the return image signal from the broadcast station. An imaging device comprising:

2. The broadcast use determination unit determines that the captured image signal is being used in a broadcast by the broadcast station. a device setting section for disallowing a change in setting or state of the imaging device, which may cause an image being broadcast to be interrupted or frozen due to the broadcast station using the captured image signal when the imaging device is in the state where the captured image signal is being used by the broadcast station. The imaging device according to claim 1 .

3. The imaging device according to claim 1 , wherein the broadcast usage determination section performs image analysis by performing pattern matching between the captured image signal and the return image signal to determine whether or not the two match.

4. 2. The imaging device according to claim 1, wherein the broadcast usage determination section generates image histograms of the captured image signal and the return image signal as the image analysis, and determines whether or not the two match using the image histograms.

5. The device setting section is configured to set a compression encoding method and a compression encoding method for generating the captured image signal. The imaging device according to claim 2, wherein the setting of the bit rate when the image is captured is set to be changed in a prohibited manner.

6. The device setting unit prohibits replacement of a lens and a battery included in the imaging device. The imaging device according to claim 2 .

Images