JP6632314B2 - Imaging device, control method thereof, and control program - Google Patents

Description

  The present invention relates to an imaging apparatus, a control method thereof, and a control program, and more particularly to a method of adjusting illumination intensity performed by an imaging apparatus having a lighting device such as an infrared lighting device.

  As one of the imaging devices, there is a surveillance camera for monitoring a situation around a building or the like. There is a surveillance camera provided with a lighting device such as an infrared lighting device for monitoring at night or in a dark place. By using such a surveillance camera, even when there is no light at all by turning on the infrared illuminating device, it is possible to perform monitoring without being noticed by a person.

  By the way, in recent years, there has been an increasing demand for a surveillance camera equipped with an infrared illuminating device having an increased illumination intensity in order to monitor a distant subject. Although infrared illumination is not at a wavelength that can be recognized by humans, it is not preferable to directly view a certain amount or more of light for a long time in consideration of the risk to the human body (especially eyes). For this reason, the illumination intensity of an infrared illuminating device that can be directly viewed by a person may be limited.

  For example, there is a surveillance camera that adjusts the irradiation intensity of a lighting device by detecting the distance between an imaging unit and a subject (see Patent Document 1). Further, there is a surveillance camera in which the irradiation intensity is gradually increased to maintain the irradiation intensity at the time when the face detection is completed (see Patent Document 2).

JP 2010-178112 A JP 2011-176780 A

  However, in the surveillance camera described in Patent Literature 1, it is not only necessary to know the distance to the subject (subject distance) to adjust the irradiation intensity, but also to record the illumination intensity according to the subject distance. It is necessary to save the table in a storage area in advance.

  Further, in the surveillance camera described in Patent Literature 2, the illumination is continued at the irradiation intensity at the time when the face detection is completed. Therefore, when the subject is facing in a different direction instead of the direction of the surveillance camera during the face detection process. In such a case, the illumination is continued at an irradiation intensity higher than necessary.

  Therefore, an object of the present invention is to provide an imaging apparatus which does not need to know the distance to the subject and which takes into account the safety of the subject while maintaining the irradiation intensity required for monitoring, a control method thereof, and a control program. It is in.

In order to achieve the above object, an imaging device according to the present invention is an imaging device that includes an illumination unit that illuminates a subject, and an imaging unit that captures an image of the subject while illuminating the subject with the illumination unit. A first detecting unit that detects the subject in the image; a second detecting unit that detects a specific region of the subject in the image; and controlling the lighting unit. When the subject is detected by the first detection means in an image obtained by illuminating the imaging area imaged by the imaging means with the first irradiation intensity, the illumination area changes the imaging area to the first irradiation intensity. possess a control means for lighting a high second irradiation intensity than the irradiation intensity, when a plurality of subjects are detected by the first detecting means, to any of the plurality of subjects When the specific area by said second detecting means does not detect can have, and the control means to increase the illumination intensity of the illumination means in stages.

A control method according to the present invention is a control method for an imaging apparatus, comprising: an illumination unit that illuminates a subject; and an imaging unit that captures an image of the subject while illuminating the subject with the illumination unit to obtain an image. A first detection step of detecting the subject, a second detection step of detecting a specific area of the subject in the image, and controlling the lighting means, wherein the image is taken by the imaging means by the lighting means. When the subject is detected in the first detection step in an image obtained by illuminating the imaging region with the first irradiation intensity, the illumination unit sets the imaging region higher than the first irradiation intensity. and a control step of illuminating the second irradiation intensity was closed, when a plurality of subjects are detected by the first detection step, in any of the plurality of subjects When the specific area in the serial second detection step is not detected, the control step is characterized by increasing the irradiation intensity of the illumination means in stages.

A control program according to the present invention is a control program used in an imaging apparatus having an illumination unit that illuminates a subject, and an imaging unit that captures an image of the subject by illuminating the subject with the illumination unit and obtains an image. A computer provided in the imaging device, a first detection step of detecting the subject in the image, a second detection step of detecting a specific area of the subject in the image, and controlling the lighting means, When the subject is detected in the first detection step in an image obtained by illuminating an imaging area imaged by the imaging means with the first illumination intensity by the illumination means, the illumination area causes the imaging area to be detected. in the control step of illuminating with a high second irradiation intensity than the first illumination intensity, it is executed, the first detection step When the number of subjects are detected, when the specific area in the second detection step in any of the plurality of subjects is not detected, the control step is to raise the irradiation intensity of the illumination means in a stepwise manner Features.

According to the present invention, when a subject is detected, the irradiation intensity is increased from the first irradiation intensity to the second irradiation intensity. In addition, when a plurality of subjects are detected and a specific region is not detected in any of the plurality of subjects, the irradiation intensity is increased stepwise. This makes it possible to consider the safety of the subject while maintaining the irradiation intensity required for monitoring without grasping the distance to the subject.

FIG. 1 is a block diagram illustrating a configuration of an example of an imaging device according to a first embodiment of the present invention. 2 is a flowchart for explaining irradiation intensity switching control of an infrared illumination unit in the monitoring camera shown in FIG. 1. 3 is a flowchart for explaining irradiation control when the moving body shown in FIG. 2 is a single body. 3 is a flowchart for explaining irradiation control when there are a plurality of moving objects shown in FIG. 2. It is a flow chart for explaining irradiation control of an infrared illumination part in a surveillance camera by a 2nd embodiment of the present invention. It is a flow chart for explaining image display control performed by a surveillance camera in a 3rd embodiment of the present invention. It is a figure for explaining an example of image display control performed by a surveillance camera in a 3rd embodiment of the present invention (the 1). It is a figure for explaining an example of image display control performed by a surveillance camera in a 3rd embodiment of the present invention (the 2). It is a figure for explaining an example of image display control performed by a surveillance camera in a 3rd embodiment of the present invention (the 3).

  Hereinafter, an example of an imaging device according to an embodiment of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a block diagram illustrating a configuration of an example of the imaging apparatus according to the first embodiment of the present invention.

  The illustrated imaging device is, for example, a surveillance camera for monitoring a situation around a building or the like. The surveillance camera has an imaging optical system 100, and a subject image (optical image) is formed on an imaging device 102 such as a CCD or a CMOS sensor via the imaging optical system 100 and an infrared filter (hereinafter, referred to as an infrared filter). .

  In the example shown in FIG. 1, the imaging optical system 100 is shown by one lens, but the imaging optical system 100 may be constituted by a plurality of lenses. Further, the infrared filter 101 has a plurality of filters such as an optical low-pass filter and an optical band-pass filter, and one or a plurality thereof can be arbitrarily selected.

  The imaging optical system control unit 105 performs control related to focusing control, zoom control, exposure control, and the like of the imaging optical system 100 under the control of the system controller 104. The image sensor 102 generates an electric signal (analog signal) corresponding to the optical image, A / D converts the analog signal, and sends the analog signal to the image processing unit 103 as a digital image signal.

  The image processing unit 103 performs predetermined image processing such as gamma correction and color balance adjustment on the digital image signal to generate an image file such as JPEG (hereinafter also referred to as image data). The system controller 104 sends the image file generated by the image processing unit 103 to the client device 114 via the LAN 113. On the other hand, the client device 114 sends a control instruction to the system controller 104 via the LAN 113 to control the monitoring camera.

  The image data generated by the image processing unit 103 is input to the subject detection unit 106. The subject detection unit 106 detects a subject (for example, a person) in the image data and outputs the detection result to the system controller 104.

  As illustrated, the subject detection unit 106 includes a moving object detection unit 111 and a face detection unit 112. The moving object detection unit 111 performs moving object detection (detection of a subject) based on a difference between frames in image data obtained as a result of imaging. The face detection unit 112 detects a face area (specific area) in the image data based on preset face feature point information. Then, the moving body detection unit 111 and the face detection unit 112 output the moving body detection result and the face area detection result to the system controller 104, respectively.

  The system controller 104 operates the infrared device control unit 107 based on the detection results (that is, the moving object detection results and the face area detection results). For example, the system controller 104 sets the illumination intensity in the infrared device control unit 107 according to the detection result. Further, the system controller 104 sets a filter to be used according to the detection result.

  Note that the subject detection unit 106 is not limited to the above-described configuration, and may be configured by combining various detection processes such as a combination of moving object detection and vehicle number detection.

  The infrared device control unit 107 controls the infrared illumination adjustment unit 108 based on the irradiation intensity set by the system controller 104. Then, the infrared illumination adjustment unit 108 switches the irradiation intensity of the infrared illumination unit 110.

  Further, the infrared device control unit 107 controls the infrared filter driving unit 109 so as to apply the filter set by the system controller 104. The infrared filter driving unit 109 drives the infrared filter 101 to apply the set filter.

  Although the example shown in FIG. 1 includes an infrared device control unit 107 for convenience of explanation, the system controller 104 directly controls the infrared illumination adjustment unit 108 and the infrared filter drive unit 109. You may make it.

  FIG. 2 is a flowchart for explaining irradiation intensity switching control of the infrared illuminating unit 110 in the monitoring camera shown in FIG. The processing according to the illustrated flowchart is performed under the control of the system controller 104.

  When the illumination intensity switching control is started, under the control of the system controller 104, the moving object detection unit 111 detects a moving object in the image data output from the image processing unit 103 (Step S201). In this case, it is assumed that the irradiation intensity of the infrared illuminating unit 110 is set to the minimum intensity at which the moving object detection unit 111 can detect the moving object in the image data.

  The moving object detection unit 111 outputs the result of the moving object detection to the system controller 104, and the system controller 104 determines whether there are a plurality of moving objects based on the result of the moving object detection (Step S202). If there are no moving objects (NO in step S202), the system controller 104 performs irradiation control (first irradiation control) when the moving object is a single body, as described later (step S203). Then, the system controller 104 ends the illumination intensity switching control.

  On the other hand, when there are a plurality of moving objects (YES in step S202), the system controller 104 performs irradiation control (second irradiation control) when there are a plurality of moving objects as described later (step S204). . Then, the system controller 104 determines whether face detection has been completed for all moving objects based on the moving object detection results and the face detection results (Step S205).

  If face detection has not been completed for all moving objects (NO in step S205), system controller 104 waits until a predetermined time has elapsed (step S206). Then, the system controller 104 returns to the process in step S204. The predetermined time may be set in advance. If the moving speed of the moving object is high, the setting time (waiting time) is reduced, and if the moving speed of the moving object is low, the setting time is increased. You may do so.

  When face detection is completed for all moving objects (YES in step S205), system controller 104 ends the illumination intensity switching control.

  FIG. 3 is a flowchart for explaining irradiation control (first irradiation control) when the moving body shown in FIG. 2 is a single body.

  When the first irradiation control is started, the system controller 104 controls the infrared device control unit 107 for face detection to increase the irradiation intensity of the infrared illuminating unit 110 to the first illumination intensity (step S301). Subsequently, the system controller 104 determines whether or not a moving object face can be detected based on the face detection result (step S302). If the face of the moving object cannot be detected (NO in step S302), the system controller 104 ends the first irradiation control. Then, the system controller 104 holds the illumination intensity at the first illumination intensity.

  On the other hand, if the face of the moving object can be detected (YES in step S302), the system controller 104 reduces the irradiation intensity to the second illumination intensity (step S303). Then, the system controller 104 returns to the process of step S302 and determines whether or not face detection can be performed again.

  In this way, when the face can be detected in the moving object, the system controller 104 sequentially lowers the illumination intensity and determines again whether the face can be detected in the moving object. If the face cannot be detected in the moving object, the system controller 104 ends the first irradiation control and holds the illumination intensity at that time.

  In the above-described example, the irradiation intensity at the time when the face cannot be detected in the moving object is held. However, the present invention is not limited to this. For example, the lowest irradiation intensity at which a face can be detected in a moving object may be held, and the lowest irradiation intensity at which a moving object can be detected may be held. Alternatively, the average illumination intensity of the lowest irradiation intensity at which the face can be detected and the lowest irradiation intensity at which the moving object can be detected may be held.

  FIG. 4 is a flowchart for explaining irradiation control (second irradiation control) when there are a plurality of moving objects shown in FIG.

  When the second irradiation control is started, the system controller 104 determines whether there is at least one moving object for which face detection has been completed based on the moving object detection result and the face detection result (step S401). If there is no moving object for which face detection has been completed (NO in step S401), the system controller 104 controls the infrared device control unit 107 to increase the irradiation intensity of the infrared illumination unit 110 stepwise to the maximum value. (Step S402). Then, the system controller 104 ends the second irradiation control.

  On the other hand, if there is a moving object for which face detection has been completed (YES in step S401), system controller 104 controls infrared device control unit 107 to change the irradiation intensity of infrared illuminating unit 110 to the irradiation intensity for face detection. (Step S403). The irradiation intensity for face detection is stored in advance in the internal memory of the system controller 104 as a set value, for example. In addition, at the time of the previous face detection, the minimum irradiation intensity at which face detection was possible may be stored in the built-in memory, and the minimum irradiation intensity may be used as face detection irradiation intensity.

  Subsequently, the system controller 104 determines whether face detection has been completed for all moving objects according to the face detection result (step S404). If face detection has not been completed for all moving objects (NO in step S404), system controller 104 increases the irradiation intensity of infrared illumination unit 110. Then, after increasing the irradiation intensity of the infrared illuminating unit 110, the system controller 104 determines whether or not a certain time (a predetermined time) has elapsed (Step S405).

  If the fixed time has not elapsed after increasing the irradiation intensity of the infrared illuminating unit 110 (NO in step S405), the system controller 104 further increases the irradiation intensity of the infrared illuminating unit 110 (step S406). Thereafter, the system controller 104 returns to the process of step S404, and determines again whether face detection has been completed for all moving objects.

  On the other hand, if a certain period of time has elapsed after increasing the irradiation intensity of the infrared illuminating unit 110 (YES in step S405), the system controller 104 lowers the irradiation intensity of the infrared illuminating unit 110 to be lower than the irradiation intensity for face detection. (Step S407). Then, the system controller 104 ends the second irradiation control.

  When face detection is completed for all moving objects (YES in step S404), system controller 104 proceeds to the process in step S407. The illumination intensity set in step S407 is the same as the illumination intensity when the moving body is a single body.

  In this manner, in the second irradiation control, even when there are a plurality of moving objects, the irradiation control can be performed in consideration of the safety of the moving object for which face detection has been completed.

  In the first embodiment described above, the method in which the system controller 104 controls the infrared illuminating unit 110 based on the moving object detection result and the face detection result has been described. Whether or not to do so may be set from the client device 114.

  As described above, in the first embodiment of the present invention, the irradiation intensity of the infrared illuminator is controlled according to the moving object detection result and the face detection result. Accordingly, it is not necessary to know the distance to the subject (moving body), and the safety of the subject can be considered while maintaining the irradiation intensity required for monitoring.

[Second embodiment]
Subsequently, an example of the monitoring camera according to the second embodiment of the present invention will be described. The configuration of the surveillance camera according to the second embodiment is the same as that of the surveillance camera shown in FIG.

  FIG. 5 is a flowchart for explaining irradiation control of the infrared illuminating unit in the surveillance camera according to the second embodiment of the present invention.

  When the irradiation control is started, under the control of the system controller 104, the moving object detection unit 111 detects a moving object in the image data output from the image processing unit 103, and based on the moving object detection result, at least a part of the plurality of moving objects. Are detected (step S501). Then, the moving body detection unit 111 sends the detection result of the moving weight to the system controller 104.

  The system controller 104 controls the infrared device control unit 107 to increase the irradiation intensity of the infrared illuminating unit 110 in order to perform the face detection process again based on the moving weight detection result (step S502). Note that the irradiation intensity set in step S502 is the minimum irradiation intensity at which a face of a moving object can be detected in the previous face detection.

  Subsequently, the system controller 104 determines whether or not face detection has been completed for all moving objects based on the face detection result output from the face detection unit 112 (step S503). If face detection has not been completed (NO to the step S503), the system controller 104 returns to the process of the step S502 and increases the irradiation intensity again.

  Here, the irradiation intensity is increased when the face detection is not completed, but the irradiation intensity set for the face detection may be held.

  On the other hand, when the face detection is completed (NO in step S503), the system controller 104 holds the irradiation intensity at the irradiation intensity at the time when the face detection is completed (step S504). When the moving object detection unit 111 detects that the overlapping of the moving objects has been released (eliminated) (step S505), the system controller 104 lowers the irradiation intensity of the infrared illuminating unit 110 (step S406). Thereafter, the system controller 104 ends the irradiation control.

  In the flowchart shown in FIG. 5, the face detection processing is performed again by detecting the overlapping of moving objects, but the present invention is not limited to such processing. For example, when the moving object for which face detection has been completed moves near the boundary between the imaging region and the non-imaging region, the face detection process may be performed again. Also, a detection area for controlling the infrared illuminating unit 110 by the client device 114 is set as an imaging area, and the infrared illuminating unit 111 is controlled only when a moving object is detected in the detection area. You may.

  As described above, in the second embodiment of the present invention, when the overlapping of the moving objects is detected and the moving objects are overlapped, the face detection is performed by increasing the irradiation intensity of the infrared illumination unit. Then, when the face detection is completed and the overlapping of the moving objects is released, the irradiation intensity of the infrared illumination unit is reduced. As a result, not only can face detection be performed with high accuracy, it is not necessary to know the distance to the subject (moving object), and the safety of the subject can be considered while maintaining the irradiation intensity required for monitoring. .

[Third Embodiment]
Subsequently, an example of the surveillance camera according to the third embodiment of the present invention will be described. The configuration of the surveillance camera according to the second embodiment is the same as that of the surveillance camera shown in FIG.

  As described above, the image data obtained by the monitoring camera is sent to the client device 114 via the LAN 113. At this time, the system controller 104 superimposes the face detection result obtained by the face detection unit 112 on the image data and sends the result to the client device 114.

  FIG. 6 is a flowchart for explaining image display control performed by the monitoring camera according to the third embodiment of the present invention.

  When the image display control is started, under the control of the system controller 104, the moving object detection unit 111 detects a moving object in the image data output from the image processing unit 103, and sends a result of the moving object detection to the system controller 104 (step S601). ). Upon receiving the moving object detection result, the system controller 104 controls the infrared device control unit 107 to increase the irradiation intensity of the infrared illumination unit 110 for face detection (step S602).

  Next, under the control of the system controller 104, the face detection unit 112 detects the face of the moving object 702 (step S603). Then, the face detection unit 112 sends the face detection result to the system controller 104.

  7 to 9 are diagrams for explaining an example of image display control performed by the monitoring camera according to the third embodiment of the present invention.

  Referring to FIGS. 7 to 9, as described above, when the moving object 702 is detected, the system controller 104 increases the irradiation intensity of the infrared light 701 emitted from the infrared illumination unit 110. Then, based on the face detection result, the system controller 104 sets the face detection area 704 in the moving object detection area 703 indicated by the moving object detection result (see FIG. 7).

  Subsequently, the system controller 104 controls the infrared device control unit 107 to reduce the irradiation intensity of the infrared light 701 emitted from the infrared illumination unit 110 (Step S604: see FIG. 8). Then, the system controller 104 generates a composite image by superimposing the face image 705 obtained in the face detection area 704 on the immediate vicinity of the moving object detection area 703 (step S605: see FIG. 9). Then, the system controller 104 sends the composite image to the client device 114 via the LAN 113. Thereafter, the system controller 104 ends the image display control. The client device 114 displays the composite image sent from the monitoring camera on the display unit.

  In the above-described image display control, the position where the face image 705 is superimposed is set immediately adjacent to the moving object detection area 703. However, the face image may be superimposed on the face detection area 704.

  If the face detection of the moving object is not completed in step S603, information indicating that the face detection has not been completed may be superimposed instead of the face image 705 to generate a composite image.

  In the above-described example, the face image 705 is superimposed after the irradiation intensity of the infrared illuminating unit 110 is reduced, but the present invention is not limited to this. For example, after superimposing the face image 705, the irradiation intensity of the infrared illuminating unit 110 may be reduced. The control of the irradiation intensity of the infrared illuminator 110 is performed in the same manner as in the first embodiment.

  As described above, in the third embodiment of the present invention, even when the irradiation intensity is insufficient to perform face detection, information associated with a moving object can be displayed in a superimposed manner. As a result, the user can easily recognize the monitoring target.

  In the third embodiment, the face image obtained at the time of face detection is superimposed on the moving object detection area by combining the moving object detection and the face detection. However, the present invention is not limited to this. For example, the vehicle monitoring may be performed by combining the moving object detection and the vehicle number detection, and superimposing the vehicle number obtained at the time of detecting the vehicle number on the moving object detection area.

  As is clear from the above description, in the example shown in FIG. 1, the imaging optical system 100, the infrared filter 101, the imaging element 102, and the image processing unit 103 constitute an imaging unit. In addition, the moving body detection unit 111 and the system controller 104 function as a first detection unit, and the face detection unit 112 and the system controller 104 function as a second detection unit. Further, the system controller 104, the infrared device control unit 107, and the infrared illumination adjustment unit 108 function as a control unit, and the system controller 104 functions as a transmission unit.

  As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to these embodiments, and various embodiments without departing from the gist of the present invention are also included in the present invention. .

  For example, the function of the above-described embodiment may be used as a control method, and the control method may be executed by the imaging apparatus. Further, a program having the functions of the above-described embodiments may be used as a control program, and the control program may be executed by a computer included in the imaging apparatus. The control program is recorded on a computer-readable recording medium, for example.

[Other Embodiments]
The present invention supplies a program for realizing one or more functions of the above-described embodiments to a system or an apparatus via a network or a storage medium, and one or more processors in a computer of the system or the apparatus read and execute the program. This processing can be realized. Further, it can also be realized by a circuit (for example, an ASIC) that realizes one or more functions.

REFERENCE SIGNS LIST 100 imaging optical system 101 infrared filter 102 image sensor 103 image processing unit 104 system controller 106 subject detection unit 107 infrared device control unit 110 infrared illumination unit 111 moving object detection unit 112 face detection unit

Claims (13)

An imaging apparatus having illumination means for illuminating a subject, and imaging means for capturing an image of the subject while illuminating the subject with the illumination means, to obtain an image,
First detection means for detecting the subject in the image;
Second detection means for detecting a specific area of the subject in the image;
When the illuminating unit is controlled and the subject is detected by the first detecting unit in an image obtained by illuminating an imaging region imaged by the imaging unit with the illuminating unit at a first irradiation intensity. , have a, and control means for illuminating the imaging area with a high second irradiation intensity than the first illumination intensity by the illuminating means,
When a plurality of objects are detected by the first detecting means, and when the specific area is not detected by the second detecting means in any of the plurality of objects, the control means controls the irradiation intensity of the lighting means. An imaging device characterized by stepwise raising . An imaging apparatus having illumination means for illuminating a subject, and imaging means for capturing an image of the subject while illuminating the subject with the illumination means, to obtain an image,
First detection means for detecting the subject in the image;
Second detection means for detecting a specific area of the subject in the image;
When the illuminating unit is controlled and the subject is detected by the first detecting unit in an image obtained by illuminating an imaging region imaged by the imaging unit with the illuminating unit at a first irradiation intensity. Control means for illuminating the imaging region with a second irradiation intensity higher than the first irradiation intensity by the lighting unit,
When a plurality of objects are detected by the first detection means, and when the specific area is detected by the second detection means in any of the plurality of objects, the control means controls the illumination of the illumination means. The intensity as the second irradiation intensity,
When the specific area is detected in all of the plurality of subjects by the second detection means in an image obtained by illuminating the imaging area with the second irradiation intensity by the illumination means, the control means An imaging apparatus, wherein the illumination intensity of the illumination means is the first illumination intensity. The control unit is configured to, when the second detection unit detects the specific region in an image obtained by illuminating the imaging area with the second irradiation intensity by the illumination unit, irradiate the illumination unit with the illumination unit. the imaging apparatus according to claim 1 or 2, characterized in that the strength and the first illumination intensity. The second irradiation intensity, in any one of claims 1 to 3, wherein the the lowest irradiation intensity of the irradiation intensity capable of detecting the specific area by the second detecting means An imaging device according to any one of the preceding claims. The control unit sets the irradiation intensity of the illumination unit to the first irradiation intensity when a predetermined time elapses after the irradiation intensity of the illumination unit is set to the second irradiation intensity. 3. The imaging device according to 2 . When at least a part of the plurality of subjects detected by the first detection unit is in a state of being overlapped, the control unit determines that the specific region is in all of the plurality of subjects by the second detection unit. The imaging apparatus according to claim 2 , wherein after the detection, when the overlapping state is resolved, the irradiation intensity of the illumination unit is set to the first irradiation intensity. The imaging apparatus according to any one of claims 1 to 6, characterized in that a transmission means for transmitting the synthesized image obtained by superimposing the specific area in the image to the client device. The specific region, the image pickup apparatus according to any one of claims 1 to 7, characterized in that a number of face or vehicle of a person. The illumination means, the imaging apparatus according to any one of claims 1 to 8, characterized in that illuminating the imaging area by the infrared light. A control method of an imaging apparatus, comprising: an illumination unit that illuminates a subject, and an imaging unit that captures an image of the subject while illuminating the subject with the illumination unit, and obtains an image.
A first detection step of detecting the subject in the image;
A second detection step of detecting a specific area of the subject in the image;
When the object is detected in the first detection step in an image obtained by controlling the illumination unit and illuminating an imaging region imaged by the imaging unit with the illumination unit at a first irradiation intensity. , have a, a control step of illuminating the imaging area with a high second irradiation intensity than the first illumination intensity by the illuminating means,
When a plurality of subjects are detected in the first detection step and the specific area is not detected in the second detection step in any of the plurality of subjects, the control step includes: Control method characterized by raising the pressure step by step . A control method of an imaging apparatus, comprising: an illumination unit that illuminates a subject, and an imaging unit that captures an image of the subject while illuminating the subject with the illumination unit, and obtains an image.
A first detection step of detecting the subject in the image;
A second detection step of detecting a specific area of the subject in the image;
When the object is detected in the first detection step in an image obtained by controlling the illumination unit and illuminating an imaging region imaged by the imaging unit with the illumination unit at a first irradiation intensity. Controlling the illumination means to illuminate the imaging region with a second illumination intensity higher than the first illumination intensity,
When a plurality of subjects are detected in the first detection step, and when the specific area is detected in the second detection step in any of the plurality of subjects, the control step includes a step of irradiating the illumination unit. The intensity as the second irradiation intensity,
When the specific area is detected in all of the plurality of subjects in the second detection step in an image obtained by illuminating the imaging area with the second irradiation intensity by the illumination unit, the control step is performed. Is a control method, wherein the irradiation intensity of the illumination means is the first irradiation intensity. A control program used in an imaging device having an illumination unit that illuminates a subject, and an imaging unit that captures an image of the subject by illuminating the subject with the illumination unit and obtains an image.
In the computer provided in the imaging device,
A first detection step of detecting the subject in the image;
A second detection step of detecting a specific area of the subject in the image;
When the object is detected in the first detection step in an image obtained by controlling the illumination unit and illuminating an imaging region imaged by the imaging unit with the illumination unit at a first irradiation intensity. Controlling the illumination unit to illuminate the imaging area with a second illumination intensity higher than the first illumination intensity .
When a plurality of subjects are detected in the first detection step, and when the specific region is not detected in the second detection step in any of the plurality of subjects, the control step includes: A control program characterized by step-by-step raising . A control program used in an imaging device having an illumination unit that illuminates a subject, and an imaging unit that captures an image of the subject by illuminating the subject with the illumination unit and obtains an image.
In the computer provided in the imaging device,
A first detection step of detecting the subject in the image;
A second detection step of detecting a specific area of the subject in the image;
When the object is detected in the first detection step in an image obtained by controlling the illumination unit and illuminating an imaging region imaged by the imaging unit with the illumination unit at a first irradiation intensity. Controlling the illumination means to illuminate the imaging region with a second illumination intensity higher than the first illumination intensity.
When a plurality of subjects are detected in the first detection step, and when the specific region is detected in the second detection step in any of the plurality of subjects, the control step includes a step of irradiating the illumination unit. The intensity as the second irradiation intensity,
When the specific area is detected in all of the plurality of subjects in the second detection step in an image obtained by illuminating the imaging area with the second irradiation intensity by the illumination unit, the control step is performed. Is a control program wherein the irradiation intensity of the illumination means is the first irradiation intensity.