Information processing device, information processing method, and program

Abstract

To enable a useful warning to be issued about a specific subject while causing less annoyance about an unrelated subject.SOLUTION: An information processing device detects a specific subject, and acquires a distance from a warning issuing device to the specific subject. Then, when the specific subject is present within an effective distance of the warning which can be issued by the warning issuing device, the information processing device controls the warning issuing device to issue a warning; and when the specific subject is not present within the effective distance of the warning which can be issued by the warning issuing device, the information processing device controls the warning issuing device not to issue the warning.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an information processing technique for controlling a device that issues a warning. [Background technology]

[0002] 2. Description of the Related Art There are surveillance cameras that issue a warning via a speaker or the like when a suspicious person is detected, and security systems that include surveillance cameras. Furthermore, Patent Document 1 discloses a security system that issues a warning through a speaker when it detects suspicious behavior by a person. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-181481 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the distance between the warning device such as a speaker and the specific subject (suspicious person) to be warned is far, the warning sound will not reach the specific subject, and will reach unrelated subjects (people) in the vicinity of the speaker. In other words, not only will an effective warning not be given to the specific subject, but unrelated subjects will be inconvenienced.

[0005] Therefore, an object of the present invention is to make it possible to realize a warning that is effective for a specific subject while minimizing the inconvenience to unrelated subjects. [Means for solving the problem]

[0006] The information processing device of the present invention is characterized by having a detection means for detecting a specific subject, a distance acquisition means for acquiring the distance from a warning issuing device that issues a warning to the specific subject, and a control means for causing the warning issuing device to issue a warning if the distance to the specific subject is within the effective reachable distance of the warning issued by the warning issuing device, and not issuing a warning from the warning issuing device if the distance to the specific subject is not within the effective reachable distance of the warning issued by the warning issuing device. Effect of the Invention

[0007] According to the present invention, it is possible to realize a warning that is effective for a specific subject while minimizing the inconvenience to unrelated subjects. [Brief description of the drawings]

[0008] [Figure 1] 1 is a diagram showing an example of the main configuration of a surveillance camera according to an embodiment; [Diagram 2] FIG. 13 is a diagram showing a functional block configuration related to a warning. [Diagram 3] FIG. 11 is a diagram showing the correspondence relationship between warning intensity and warning effective distance. [Figure 4] 1 is a diagram showing a correspondence relationship between a surveillance camera position and each point position within a shooting range. [Diagram 5] 10 is a flowchart showing a flow of information processing related to warning issuance control. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments do not limit the present invention, and not all of the combinations of features described in the present embodiments are necessarily essential to the solution of the present invention. The configurations of the embodiments may be appropriately modified or changed depending on the specifications of the device to which the present invention is applied and various conditions (such as the conditions of use and the environment in which the device is used).

[0010] FIG. 1 is a diagram showing an example of the main configuration of a surveillance camera 100, which is an example of an imaging device equipped with an information processing device according to this embodiment. In FIG. 1, an imaging unit 102 has components related to imaging, such as an optical lens and an image sensor.

[0011] The optical warning unit 103 is a warning issuing device for issuing a warning using light. In this embodiment, the optical warning unit 103 has an LED (light emitting diode) as a component for issuing warning light. That is, in this embodiment, light from the LED of the optical warning unit 103 can be used to issue a warning to a warning target. An example of a warning using light is a blinking LED. The sound warning unit 104 is a warning issuing device for issuing a warning using sound. In this embodiment, the sound warning unit 104 is configured with a speaker for issuing a sound. That is, in this embodiment, sound from the speaker of the sound warning unit 104 can be used to issue a warning to a warning target. An example of a warning using sound is an alarm sound issued from a speaker.

[0012] In this embodiment, the light warning unit 103 and the sound warning unit 104 are given as warning issuing units, but only one of them may be used, and the light warning unit 103 and the sound warning unit 104 may be more than one. In this embodiment, the warning target is a suspicious person who behaves suspiciously among people in the captured video, but it may be something other than a person, such as a vehicle or an animal. In the following description, the suspicious person who is the warning target is referred to as a target, and when the light warning unit 103 and the sound warning unit 104 are not distinguished from each other, they are collectively referred to as warning issuing units.

[0013] The setting unit 107 sets the light emission intensity of the light warning unit 103 and the sound output intensity of the sound warning unit 104 in response to, for example, an operational input from a user. Here, when light is used to warn a target, it is considered that the brighter the light, the more likely it is that the more distant the target will be alerted. In other words, it can be said that the effective distance at which light functions as a warning (the distance that a warning by light can reach) roughly corresponds to the emission intensity (brightness) of the light in the light warning unit 103. The setting information of the emission intensity set by the setting unit 107 is sent to the CPU 101, and the CPU 101 determines the effective distance at which light functions as a warning (hereinafter referred to as the light warning effective distance) based on the setting information of the emission intensity. The process of determining the light warning effective distance based on the emission intensity setting information will be described in detail later.

[0014] Similarly, when using sound to warn a target, it is considered that using a louder sound increases the possibility of conveying the warning to a target that is farther away. In other words, it can be said that the effective distance at which sound functions as a warning (the distance at which a warning by sound can reach) roughly corresponds to the output intensity (loudness) of the sound in the sound warning unit 104. Setting information of the sound output intensity set by the setting unit 107 is sent to the CPU 101, and the CPU 101 determines the effective distance at which sound functions as a warning (hereinafter referred to as the sound warning effective distance) based on the setting information of the sound output intensity. The process of determining the sound warning effective distance based on the setting information of the sound output intensity will be described in detail later. In the following description, the light emission intensity and sound output intensity acquired by the setting unit 107 are collectively referred to as the warning intensity, and the light warning effective distance according to the light emission intensity and the sound warning effective distance according to the sound output intensity are collectively referred to as the warning effective distance.

[0015] The memory 106 stores information on the effective warning distance (effective light warning distance or effective sound warning distance) determined by the CPU 101 based on the warning intensity (light emission intensity or sound output intensity) acquired by the setting unit 107.

[0016] The position acquisition unit 105 is a position acquisition device for acquiring position information of the installation location of the surveillance camera 100. In the present embodiment, the position acquisition unit 105 is a so-called GPS (Global Positioning System) unit. Therefore, the position acquisition unit 105 acquires position information in the GPS coordinate system as the position information of the installation location of the surveillance camera 100. Note that acquisition of the position of the surveillance camera 100 is not limited to acquisition by the GPS unit, and may be performed, for example, by an installer of the surveillance camera 100 using a separate GPS device to measure the latitude and longitude near the surveillance camera 100 and inputting the positioning result.

[0017] The CPU 101 is an information processing device according to this embodiment, and performs overall operational control of the surveillance camera 100. The overall operational control of the surveillance camera 100 is similar to that of a general surveillance camera, and therefore a description thereof will be omitted. In addition to general operational control, the CPU 101 of this embodiment performs storage control such as determining an effective warning distance based on a warning issuance intensity set by a setting unit 107, and storing information on the effective warning distance in a memory 106. Furthermore, the CPU 101 of this embodiment also performs capture processing for capturing a target from an image captured by the imaging unit 102, target position estimation processing, distance acquisition processing to the target, and control for issuing a warning to the target.

[0018] Although details will be described later, CPU 101 performs a process of determining an effective warning distance, such as determining an effective light warning distance according to setting information of light emission intensity by setting unit 107, and determining an effective sound warning distance according to setting information of sound output intensity by setting unit 107. CPU 101 then stores information indicating the effective warning distance (information on the effective light warning distance and the effective sound warning distance) in memory 106.

[0019] Similarly, as will be described in detail later, the CPU 101 detects people from the image captured by the imaging unit 102, and performs target capture processing to detect (identify) a suspicious person among the detected people as a target.

[0020] In addition, the CPU 101 performs a position estimation process to estimate (calculate) the position of the target in the GPS coordinate system based on the installation location of the surveillance camera 100 acquired by the position acquisition unit 105 and the position of the target in the captured image captured by the capture process.

[0021] Furthermore, CPU 101 performs distance acquisition processing to calculate the distance from the warning issuing unit to the target in the GPS coordinate system. In this embodiment, the warning issuing unit is built into or installed alongside surveillance camera 100, and since surveillance camera 100 and the warning issuing unit are in approximately the same position, the distance acquisition processing for the warning target may acquire the distance from surveillance camera 100 to the target.

[0022] Then, the CPU 101 performs warning issuing control to cause the warning issuing unit to issue a warning only when the distance to the target is within the warning effective distance that the warning issued by the warning issuing unit can reach. In other words, the CPU 101 performs warning issuing control to prevent the warning issuing unit from issuing a warning when the target (suspicious person) is in a position that cannot be reached by the warning issued by the warning issuing unit.

[0023] 2 is a diagram showing an example of a functional configuration of CPU101 that realizes the above-mentioned warning effective distance determination process, storage control, target capture process, target position estimation process, distance acquisition process, and target warning control. In this embodiment, an example is given in which each functional unit in FIG. 2 is realized by CPU101 executing a control program, but each functional unit in FIG. 2 may be configured by a circuit or the like. Note that the control program according to this embodiment is held in a storage medium or storage device not shown in FIG. 1, and the control program is read out and expanded in a RAM not shown and executed by CPU101.

[0024] 2, an imaging control unit 112 controls the imaging operation in the imaging unit 102. Since the imaging device according to this embodiment is exemplified as a surveillance camera 100, the imaging control unit 112 controls the imaging operation of the imaging unit 102 to capture a moving image. The image processing unit 120 performs image processing such as development processing, color adjustment, and gain adjustment on captured image data for each frame of a moving image acquired by the imaging unit 102. Note that this image processing may be performed by an image processing unit provided as a separate configuration from the CPU 101, or may be performed in the imaging unit 102.

[0025] The position acquisition control unit 115 acquires the position information of the installation location of the surveillance camera 100 from the GPS unit of the position acquisition unit 105 . The setting acquisition unit 117 acquires setting information of the warning emission intensity acquired by the setting unit 107 in response to a user's operation input, and further determines the effective warning distance based on the setting information of the warning light emission intensity. In this embodiment, the setting acquisition unit 117 determines the effective light warning distance that the light warning from the light warning unit 103 can reach based on the setting information of the light emission intensity set by the setting unit 107. Similarly, the setting acquisition unit 117 determines the effective sound warning distance that the sound warning from the sound warning unit 104 can reach based on the setting information of the sound output intensity set by the setting unit 107.

[0026] FIG. 3 is a diagram showing the relationship between the warning intensity and the effective warning distance. FIG. 3 shows the relationship between the light emission intensity of the LED of the light warning unit 103 and the effective light warning distance, and the relationship between the sound output intensity of the speaker of the sound warning unit 104 and the effective light warning distance. That is, the setting acquisition unit 117 sets the effective light warning range to, for example, "50 m" when the light emission intensity of the LED of the light warning unit 103 is set to, for example, "strong", and sets the effective light warning range to, for example, "20 m" when the light emission intensity is set to, for example, "weak". Similarly, the setting acquisition unit 117 sets the effective sound warning range to, for example, "50 m" when the sound output intensity of the speaker of the sound warning unit 104 is set to, for example, "strong", and sets the effective sound warning range to, for example, "20 m" when the sound output intensity is set to, for example, "weak". In the example of FIG. 3, the warning intensity is set to two types, "strong" and "weak", but may be further divided, and in that case, the effective warning distance is also determined in detail according to the divided warning intensity.

[0027] When the setting acquisition unit 117 determines the effective warning distance according to the warning issuance intensity as described above, the storage control unit 116 stores information on the effective warning distance (effective light warning distance, effective sound warning distance) in the memory 106.

[0028] The target capture unit 121 detects people from the image (captured video) after image processing by the image processing unit 120, and detects (identifies) a suspicious person (specific subject) who is behaving suspiciously from among the detected people. The detection of people appearing in the captured video and the detection (identification) of a suspicious person (specific subject) who is a warning target from the detected people can be realized, for example, by applying a method using a learning model that has been trained in advance for detecting and identifying suspicious people. The target capture unit 121 performs automatic tracking so as to continue capturing the target while the target exists in the captured video. As already explained, in this embodiment, a suspicious person (specific subject) is described as a "target".

[0029] The position calculation unit 122 is a position estimation unit that estimates the position of the target in the GPS coordinate system based on the position of the target in the image captured by the target capture unit 121 and the position of the surveillance camera 100 in the GPS coordinate system. When the target capture unit 121 is tracking the target, the position calculation unit 122 successively estimates the position of the moving target, for example, for each frame or for each predetermined time.

[0030] As a method of calculating the target position, for example, a method of associating the position of the surveillance camera 100 and the positions of multiple points within the shooting range, which are expressed in the GPS coordinate system, with the positions of each point within the shot video, as shown in Figures 4(A) and 4(B), can be used. In other words, if the correspondence between the surveillance camera position in the GPS coordinate system, the multiple positions within the shooting range, and each position within the shot video is known, the position of the target in the GPS coordinate system can be estimated from the relative positional relationship between each position in the shot video and the target.

[0031] Fig. 4(A) is a diagram showing an example of an image 400 of a certain frame of a video captured by the imaging unit 102. Fig. 4(B) is a diagram showing a position 410 in the GPS coordinate system of a surveillance camera 100 equipped with the imaging unit 102, and each position (position 401 and position 402) of a certain number of points in a capturing range D of the imaging unit 102 of the surveillance camera 100. The positions 401 and 402 in the capturing range D shown in Fig. 4(B) correspond to the positions 401 and 402 in the image 400 in Fig. 4(A).

[0032] The position 410 of the surveillance camera 100 is a position acquired by the position acquisition unit 105 described above, and is assumed to be a position of coordinates (X1, Y1) indicated by latitude X1 and longitude Y1 in the GPS coordinate system as shown in FIG. 4B. Among the positions of the multiple points in FIG. 4B, the position 401 is assumed to be a position of coordinates (X3, Y3) indicated by latitude X3 and longitude Y3 in the GPS coordinate system, and the position 402 is assumed to be a position of coordinates (X2, Y2) indicated by latitude X2 and longitude Y2 in the GPS coordinate system. The coordinates of the positions 401 and 402 are assumed to be acquired in advance by, for example, an installer of the surveillance camera 100, etc., separately measuring the position using a GPS device. In this embodiment, the correspondence relationship between the coordinates (X1, Y1) of the surveillance camera 100 acquired in advance as shown in FIG. 4B and the coordinates (X2, Y2) and coordinates (X3, Y3) of each point in the shooting range is previously obtained. Furthermore, in this embodiment, the correspondence between the positions 401 and 402 of each point in the image 400 in FIG. 4A and the coordinates (X3, Y3) of the position 401 and the coordinates (X2, Y2) of the position 402 in the GPS coordinate system in FIG. 4B is obtained in advance. Therefore, by using these correspondences to obtain the relative positional relationship between the position of the target captured in the image 400 of the surveillance camera 100 and each of the positions 401 and 402 in the image 400, it is possible to estimate the position of the target in the GPS coordinate system. Note that in the example of FIG. 4, two positions, coordinates (X2, Y2) and coordinates (X3, Y3), are given as the positions of the multiple points, but the number of positions is not limited to two, and the coordinates of more positions may be obtained in advance.

[0033] The distance calculation unit 123 calculates the distance from the warning issuing unit to the target. When the target capture unit 121 is tracking the target and the position calculation unit 122 is successively estimating the position of the target for each frame or a predetermined time, the distance calculation unit 123 successively acquires (successively calculates) the distance to the target. In this embodiment, the warning issuing unit is built into or attached to the surveillance camera 100, and the warning issuing unit and the surveillance camera 100 are in approximately the same position, so the position calculation unit 122 calculates the distance from the surveillance camera 100 to the target.

[0034] The light emission control unit 113 judges whether or not the light warning can reach the target based on the distance to the target calculated by the distance calculation unit 123 and the information on the light warning effective distance among the warning effective distances stored in the memory 106. Then, the light emission control unit 113 controls the light warning unit 103 to emit a light warning only when it is judged that the light warning can reach the target. In other words, the light emission control unit 113 controls the light warning unit 103 to emit an LED when the light warning can reach the target, and controls the light warning unit 103 not to emit an LED when the light warning cannot reach the target. In addition, when the light warning unit 103 emits an LED, the light emission control unit 113 controls the light warning unit 103 to stop emitting an LED when the distance to the target exceeds the light warning effective distance and the light warning cannot reach the target. In addition, after determining that the light warning has stopped reaching the target, the light emission control unit 113 controls the LED to resume emitting light when the distance to the target again falls within the effective light warning distance and the light warning can reach the target.

[0035] The sound output control unit 114 determines whether or not the sound warning can reach the target based on the distance to the target calculated by the distance calculation unit 123 and the information on the sound warning effective distance among the warning effective distances stored in the memory 106. Then, the sound output control unit 114 controls the sound warning unit 104 to issue a sound warning only when it is determined that the sound warning can reach the target. In other words, the sound output control unit 114 controls the sound warning unit 104 to output a sound from the speaker when the sound warning can reach the target, and controls the sound warning unit 104 not to output a sound from the speaker when the sound warning cannot reach the target. In addition, when sound is being output from the speaker of the sound warning unit 104, if the distance to the target exceeds the sound warning effective distance and the sound warning cannot reach the target, the sound output control unit 114 controls the sound warning unit 104 to stop outputting a sound from the speaker. Furthermore, after determining that the sound warning has not reached the target, the sound emission control unit 114 controls to resume sound output from the speaker when the distance to the target again falls within the sound warning effective distance and the sound warning can reach the target.

[0036] In this embodiment, an example has been given of detecting a person and calculating the distance based on a captured image, but the process from detecting a person to calculating the distance may be performed using, for example, LiDAR (Light Detection And Ranging), millimeter wave radar, etc. In this case, whether or not a person is suspicious can be determined in the same manner as described above.

[0037] Fig. 5 is a flowchart showing the flow of processing in the CPU 101 of Fig. 1. The processing of the flowchart of Fig. 5 shows processing by the imaging control unit 112, the target capture unit 121, the position calculation unit 122, the distance calculation unit 123, the light emission control unit 113, and the sound emission control unit 114 among the functional units of the CPU 101 shown in Fig. 2. In the flowchart of Fig. 2, the symbol S indicates a processing step (process).

[0038] First, in S500, the imaging control unit 112 controls the imaging unit 102 to start an imaging operation. When the imaging operation by the imaging unit 102 is started, in S501, the target capture unit 121 detects a person from the image (captured video) after image processing, identifies a suspicious person from the detected people, and performs processing to capture them as a target. If the target is captured by the target capture unit 121, the processing in the CPU 101 proceeds to S502, whereas if the target cannot be captured, the processing in the CPU 101 proceeds to S506.

[0039] When the process proceeds to S502 because the target has been captured, the position calculation unit 122 performs the process of estimating (calculating) the position of the target as described above with reference to FIG. Next, proceeding to S503, distance calculation unit 123 estimates (calculates) the distance from the warning issuing unit to the target based on the position of the target obtained in S502 and the correspondence between the position of surveillance camera 100 and the positions of each point obtained in advance as described above. For example, if the target is captured at the position of coordinates (X2, Y2) in Fig. 4 described above, distance calculation unit 123 calculates the straight-line distance from coordinates (X1, Y1) to coordinates (X2, Y2) as the distance from the warning issuing unit to the target.

[0040] Next, in S504, the light emission control unit 113 determines whether the distance to the target calculated in S503 is within the light warning effective distance, that is, whether the light warning issued from the light warning unit 103 can reach the target. Similarly, in S504, the sound emission control unit 114 determines whether the distance to the target calculated in S503 is within the sound warning effective distance, that is, whether the sound warning issued from the sound warning unit 104 can reach the target.

[0041] If it is determined in S504 that the distance to the target is within the effective light warning distance, then in S505, light emission control unit 113 controls light emission of LED of light warning unit 103. Similarly, if it is determined in S504 that the distance to the target is within the effective sound warning distance, then in S505, sound emission control unit 114 controls sound warning unit 104 to output a warning sound from its speaker. Then, the processing of CPU 101 returns to S501.

[0042] On the other hand, if it is determined in S504 that the distance to the target exceeds the effective light warning distance, the light emission control unit 113 controls in S506 not to emit the LED of the light warning unit 103, that is, not to issue a warning by light. If it is determined in S504 that the distance to the target exceeds the effective sound warning distance, the sound emission control unit 114 controls in S506 not to output a warning sound from the speaker of the sound warning unit 104, that is, not to issue a warning by sound. Then, the processing of the CPU 101 returns to S501.

[0043] As described above, the surveillance camera 100 of this embodiment tracks the target while the target is captured. Therefore, when the target is moving, the calculation of the target position in S502 and the calculation of the target distance in S503 are repeated. When a target that was within the effective warning distance moves to a position farther than the effective warning distance, the process proceeds to S506, and the issuance of the warning is stopped. Conversely, when a target that was at a distance beyond the effective warning distance moves to within the effective warning distance, the process proceeds to S505, and the issuance of the warning is started. In addition, when the target is not captured or when a captured target is no longer captured, the process proceeds to S506, and the issuance of the warning is stopped.

[0044] In the above-described embodiment, an example was given in which the warning issuing unit is built into or attached to the surveillance camera 100, but the warning issuing unit may be installed at a location somewhat distant from the surveillance camera 100. Also, either one of the light warning unit 103 or the sound warning unit 104 may be built into or attached to the surveillance camera 100, and the other may be installed at a location somewhat distant from the surveillance camera 100. When the warning issuing unit is installed at a location distant from the surveillance camera 100, the warning issuing unit and the surveillance camera 100 are connected by cable or wirelessly.

[0045] In addition, when the warning issuing unit is installed at a location away from the surveillance camera 100, the installation position of the warning issuing unit in the GPS coordinate system is acquired in advance as described above. To explain using the example of FIG. 4 described above, the position of the light warning unit 103 (coordinates (X4, Y4) not shown in FIG. 4) and the position of the sound warning unit 104 (coordinates (X5, Y5) not shown in FIG. 4) are acquired in advance. Then, the correspondence between the position (X1, Y1) of the surveillance camera 100 in the GPS coordinate system, the coordinates (X2, Y2) and (X3, Y3) of each point within the shooting range, and the coordinates (X4, Y4) and (X5, Y5) of each warning issuing unit is obtained in advance as described above. By using these correspondences, in addition to estimating (calculating) the position of a target captured in the video captured by the surveillance camera 100, it is also possible to calculate the distance from the position of the target to the warning issuing unit. In other words, even if the warning issuing unit is installed in a location far away from the surveillance camera 100, it is possible to control the start and stop of warning issuance from the warning issuing unit by comparing the distance from each warning issuing unit to the target with the effective warning distance.

[0046] As described above, according to this embodiment, only when the distance to the target is within the effective distance that the warning issued from the warning issuing unit can reach, the warning issuing unit issues a warning. In other words, according to this embodiment, when the target (suspicious person) is located in a position where the warning cannot reach, the warning is not issued, so that the warning can be issued without causing inconvenience to people who are not related to the suspicious person.

[0047] The present invention can also be realized by supplying a program for implementing one or more of the functions of the above-described embodiments to a system or device via a network or a storage medium, and having one or more processors in the computer of the system or device read and execute the program. It can also be realized by a circuit (e.g., ASIC) that implements one or more of the functions. The above-mentioned embodiments are merely examples of the implementation of the present invention, and the technical scope of the present invention should not be interpreted as being limited by these. In other words, the present invention can be implemented in various forms without departing from its technical concept or main characteristics.

[0048] The disclosure of this embodiment includes the following configuration, method, and program. (Configuration 1) A detection means for detecting a specific subject; a distance acquisition means for acquiring a distance from a warning issuing device that issues a warning to the specific subject; When the distance to the specific object is within an effective distance that can be reached by the warning issuing device, a warning is issued from the warning issuing device; a control means for preventing the warning issuing device from issuing a warning when the distance to the specific object is not within an effective reachable distance of the warning issued by the warning issuing device; 13. An information processing device comprising: (Configuration 2) the detection means detects the specific subject from a captured image and estimates a position of the detected specific subject; 2. The information processing device according to configuration 1, wherein the distance acquisition means acquires a distance from the warning issuing device to the specific subject based on a position of the specific subject. (Configuration 3) The information processing device according to configuration 2, wherein the detection means estimates the position of the specific subject based on a correspondence relationship between the position of an imaging device that captures the image, the positions of multiple points within a shooting range, and multiple positions within the image captured by the imaging device. (Configuration 4) The detection means successively estimates a position of the specific object that is moving, the distance acquisition means successively acquires a distance to the specific subject based on the successively estimated position of the specific subject; 4. The information processing device according to configuration 2 or 3, wherein the control means causes the warning issuing device to issue a warning only when the distance to the specific subject successively acquired is within the effective distance. (Configuration 5) The information processing device according to any one of configurations 1 to 4, further comprising a determination means for determining the effective distance that the warning issued by the warning issuing device can reach based on setting information of the strength of the warning issued by the warning issuing device. (Configuration 6) a storage means for storing information on the effective distance determined by the determination means, 6. The information processing device according to configuration 5, wherein the control means uses the information on the effective distance stored in the storage means to determine whether or not the distance to the specific subject is within the effective distance. (Configuration 7) 7. The information processing device according to any one of configurations 1 to 6, wherein the warning issued by the warning issuing device is at least one of a light warning and a sound warning. (Configuration 8) 8. The information processing device according to any one of configurations 1 to 7, wherein the warning issuing device is a device built into or attached to an imaging device that captures an image. (Configuration 9) 9. The information processing device according to any one of configurations 1 to 8, wherein the specific subject is a person. (Method 1) A detection step of detecting a specific subject; a distance acquisition step of acquiring a distance from a warning issuing device that issues a warning to the specific subject; When the distance to the specific object is within an effective distance that can be reached by the warning issuing device, a warning is issued from the warning issuing device; a control step of not issuing a warning from the warning issuing device when the distance to the specific subject is not within an effective reachable distance of the warning issued by the warning issuing device; 13. An information processing method comprising: (Program 1) A program for causing a computer to function as the information processing device according to any one of configurations 1 to 9. [Explanation of symbols]

[0049] 100: surveillance camera, 101: CPU, 102: imaging unit, 103: light warning unit, 104: sound warning unit, 105: position acquisition unit, 106: memory, 107: setting unit

Claims

1. A detection means for detecting a specific subject; a distance acquisition means for acquiring a distance from a warning issuing device that issues a warning to the specific subject; When the distance to the specific object is within an effective distance that can be reached by the warning issuing device, a warning is issued from the warning issuing device; a control means for preventing the warning issuing device from issuing a warning when the distance to the specific object is not within an effective reachable distance of the warning issued by the warning issuing device; 13. An information processing device comprising:

2. the detection means detects the specific subject from a captured image and estimates a position of the detected specific subject; 2 . The information processing apparatus according to claim 1 , wherein the distance acquisition means acquires the distance from the warning issuing device to the specific object based on the position of the specific object.

3. The information processing device according to claim 2, wherein the detection means estimates the position of the specific subject based on a correspondence relationship between the position of an imaging device that captures the image and the positions of multiple points within a shooting range, and multiple positions within the image captured by the imaging device.

4. The detection means successively estimates a position of the specific object that is moving, the distance acquisition means successively acquires a distance to the specific subject based on the successively estimated position of the specific subject; 3. The information processing apparatus according to claim 2, wherein the control means causes the warning issuing device to issue a warning only when the distance to the specific subject successively acquired is within the effective distance.

5. 5. The information processing device according to claim 1, further comprising a determination means for determining the effective distance that the warning issued by the warning issuing device can reach based on setting information of the strength of the warning issued by the warning issuing device.

6. a storage means for storing information on the effective distance determined by the determination means, 6. The information processing apparatus according to claim 5, wherein the control means uses the information on the effective distance stored in the storage means to determine whether or not the distance to the specific subject is within the effective distance.

7. 2. The information processing apparatus according to claim 1, wherein the warning issued by the warning issuing device is at least one of a light warning and a sound warning.

8. 2. The information processing apparatus according to claim 1, wherein the warning issuing device is a device built in or attached to an image capturing device that captures an image.

9. 2. The information processing apparatus according to claim 1, wherein the specific subject is a person.

10. A detection step of detecting a specific subject; a distance acquisition step of acquiring a distance from a warning issuing device that issues a warning to the specific subject; When the distance to the specific object is within an effective distance that can be reached by the warning issuing device, a warning is issued from the warning issuing device; a control step of not issuing a warning from the warning issuing device when the distance to the specific subject is not within an effective reachable distance of the warning issued by the warning issuing device; 13. An information processing method comprising:

11. Computer, A detection means for detecting a specific subject; a distance acquisition means for acquiring a distance from a warning issuing device that issues a warning to the specific subject; When the distance to the specific object is within an effective distance that can be reached by the warning issuing device, a warning is issued from the warning issuing device; a control means for preventing the warning issuing device from issuing a warning when the distance to the specific object is not within an effective reachable distance of the warning issued by the warning issuing device; A program that causes the device to function as an information processing device having the above-mentioned configuration.

Images