Information processing device, camera control method and program

Abstract

A technology is provided for reducing the workload when introducing a system that processes images generated by a camera. [Solution] Information processing device 10 has at least a storage unit 120, a recommended setting determination unit 130, and a camera control unit 140. Storage unit 120 stores authentication information obtained in an authentication process using an image of a person and the camera settings used when camera 20 generated the image. Recommended setting determination unit 130 determines recommended settings for camera 20 based on the correspondence between the authentication information and the camera settings. Camera control unit 140, in response to acquisition of personal identification information, identifies recommended camera settings determined for the person corresponding to the personal identification information. Then, camera control unit 140 controls camera 20 based on the identified recommended settings.

Description

[Technical field]

[0001] The present invention relates to an information processing device, a camera control method, a program, a camera device, and an image processing system. [Background technology]

[0002] The following Patent Document 1 discloses a technique for calculating a value indicating an evaluation of the state (position, posture, etc.) of a camera generating an image from the viewpoint of how suitable an object (such as a person) appears in the image for image processing. Specifically, the following Patent Document 1 discloses a technique for calculating an evaluation value indicating whether or not the current camera state (camera parameters) is suitable for image processing based on (1) the resolution of the target object in the image, (2) the gaze point angle to the target object (the angle between the ground and a line connecting the camera position and the gaze point position in the target object), and (3) the degree of overlap between the target area (the area in real space photographed by the camera) and the target object viewing area (the area in real space where the target object model fits in the image). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Republished Patent Publication WO2014 / 002398 Summary of the Invention [Problem to be solved by the invention]

[0004] In a system that performs authentication processing to authenticate a person using an image of the person, the camera settings are one of the main factors that determine the accuracy of the authentication processing. If the camera settings are inappropriate, the accuracy of the authentication processing using the image generated by the camera will decrease. Therefore, when the system is introduced, it is necessary to adjust the camera settings to be optimal, but this adjustment work requires a considerable amount of time.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a technology for reducing the workload at the time of introducing a system for processing images generated by a camera. [Means for solving the problem]

[0006] According to one aspect of the present invention, A storage means for storing authentication information obtained by an authentication process using an image of a person and a camera setting when the camera generated the image; a recommended setting determination means for determining a recommended setting for the camera based on a correspondence between the authentication information and the camera settings; An acquisition means for acquiring personal identification information; a camera control means for identifying recommended settings for the camera of the person based on the acquired personal identification information and controlling the camera based on the identified recommended settings; An information processing device comprising:

[0007] According to one aspect of the present invention, At least one computer storing authentication information obtained by an authentication process of a person appearing in the image and the camera settings at the time the camera generated the image; determining recommended settings for the camera based on a correspondence between the authentication information and the camera settings; Obtaining personally identifiable information, identifying recommended settings for the camera for the person based on the obtained personal identification information, and controlling the camera based on the identified recommended settings. A camera control method is provided, comprising:

[0008] According to one aspect of the present invention, At least one computer a storage means for storing authentication information obtained by processing an image including a person and a camera setting when the camera generated the image; a recommended setting determination means for determining a recommended setting for the camera based on a correspondence between the authentication information and the camera settings; A means for acquiring personally identifiable information; a camera control means for identifying recommended settings for the camera of the person based on the acquired personal identification information and for controlling the camera based on the identified recommended settings; A program is provided to function as such.

[0009] The present disclosure includes a camera that is utilized in the image processing system described below.

[0010] This disclosure includes: A camera that generates images of people by changing the camera settings, an authentication means for executing an authentication process using the image; a storage means for storing authentication information obtained in the authentication process and a camera setting when the camera generated the image; a recommended setting determination means for determining a recommended setting for the camera based on a correspondence between the authentication information and the camera settings; An acquisition means for acquiring personal identification information; a camera control means for identifying recommended settings for the camera of the person based on the acquired personal identification information and controlling the camera based on the identified recommended settings; The image processing system includes: Effect of the Invention

[0011] According to the present invention, in a system for processing images generated by a camera, the workload at the time of introducing the system can be reduced. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of an image processing system according to a first embodiment. [Diagram 2] FIG. 2 is a block diagram illustrating a hardware configuration of an information processing device. [Diagram 3]FIG. 2 is a block diagram illustrating an example of a hardware configuration of a camera. [Figure 4] FIG. 2 is a sequence diagram illustrating a flow of processing executed by the image processing system according to the first embodiment. [Diagram 5] FIG. 13 is a diagram illustrating an example of a database that stores a result of authentication processing and a camera setting in association with each other. [Figure 6] FIG. 11 is a diagram illustrating another example of a database that stores the result of the authentication process and the camera settings in association with each other. [Figure 7] FIG. 11 is a diagram illustrating another example of a database that stores the result of the authentication process and the camera settings in association with each other. [Figure 8] FIG. 13 is a diagram illustrating an example of the configuration of an image processing system according to a second embodiment. [Figure 9] 13 is a sequence diagram showing a process flow up to the accumulation of individual recommended settings in a recommended setting storage unit. FIG. [Figure 10] FIG. 11 is a diagram illustrating an example of information stored in a recommended setting storage unit. [Figure 11] FIG. 11 is a sequence diagram showing a process flow for controlling a camera using personally recommended settings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The image processing system according to the present invention has a function of automatically determining recommended camera settings (hereinafter also referred to as "recommended settings") for a camera that generates an image (an image showing a person) used as an input for person authentication processing, and controlling the camera based on the determined recommended settings. In this specification, "camera settings" refers to settings that affect at least one of the camera's shooting range, how a subject (person) is captured, and image quality. Specifically, the camera settings include at least one of the attitude (pan and tilt angles), shooting magnification, exposure time length (shutter speed), brightness, saturation, shooting resolution, and compression quality.

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In all drawings, similar components are given similar reference numerals, and descriptions thereof will be omitted as appropriate. In addition, unless otherwise specified, in each block diagram, each block represents a functional configuration, not a hardware configuration. In addition, the direction of the arrows in the drawings is intended to make the flow of information easier to understand, and does not limit the direction of communication (one-way communication / two-way communication) unless otherwise specified.

[0015] [First embodiment] <Functional configuration of information processing device 10> 1 is a diagram illustrating an example of the configuration of an image processing system 1 according to the first embodiment. The image processing system 1 illustrated in FIG.

[0016] As shown in Fig. 1, the information processing device 10 includes an authentication unit 110, a storage unit 120, a recommended setting determination unit 130, and a camera control unit 140. The authentication unit 110 acquires an image generated by the camera 20, and performs authentication processing of a person appearing in the image. The storage unit 120 stores in a predetermined storage area a score (authentication score) obtained in authentication processing using an image in which a person appears, in association with the camera settings when the camera 20 generated the image. The recommended setting determination unit 130 determines recommended settings for the camera 20 based on information (correspondence between the authentication score and the camera settings) stored in the predetermined storage area. The camera control unit 140 controls the camera 20 based on the recommended settings determined by the recommended setting determination unit 130.

[0017] <Example of Hardware Configuration of Information Processing Device 10> Each functional component of the information processing device 10 may be realized by hardware that realizes each functional component (e.g., a hardwired electronic circuit, etc.), or may be realized by a combination of hardware and software (e.g., a combination of an electronic circuit and a program that controls it, etc.). A case in which the information processing device 10 realizes each functional component by a combination of hardware and software will be further described below with reference to Fig. 2. Fig. 2 is a block diagram illustrating an example of the hardware configuration of the information processing device 10.

[0018] The information processing device 10 includes a control board 1000. The control board 1000 includes a bus 1010, a processor 1020, a memory 1030, a storage device 1040, an input / output interface 1050, and a network interface 1060.

[0019] The bus 1010 is a data transmission path for transmitting and receiving data among the processor 1020, memory 1030, storage device 1040, input / output interface 1050, and network interface 1060. However, the method of connecting the processor 1020 and the like to each other is not limited to bus connection.

[0020] The processor 1020 is implemented by a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or the like.

[0021] The memory 1030 is a main storage device realized by a RAM (Random Access Memory) or the like.

[0022] The storage device 1040 is an auxiliary storage device realized by a hard disk drive (HDD), a solid state drive (SSD), a memory card, a read only memory (ROM), etc. The storage device 1040 stores program modules that realize each function of the information processing device 10 (authentication unit 110, accumulation unit 120, recommended setting determination unit 130, camera control unit 140, etc.). The processor 1020 loads each of these program modules onto the memory 1030 and executes them, thereby realizing each function corresponding to each program module.

[0023] The input / output interface 1050 is an interface for connecting the information processing device 10 to various input / output devices. The input / output interface 1050 can be connected to input devices (not shown) such as a keyboard and a mouse, and output devices (not shown) such as a display and a speaker.

[0024] The network interface 1060 is an interface for connecting the information processing device 10 to a network. This network is, for example, a LAN (Local Area Network) or a WAN (Wide Area Network). The network interface 1060 may connect to the network wirelessly or by wire. In the example of FIG. 2, the information processing device 10 is connected to the camera 20 via the network interface 1060. The information processing device 10 can communicate with the camera 20 via the network interface 1060 and acquire an image in which a person appears and the camera settings of the image. In addition, the information processing device 10 can communicate with the camera 20 via the network interface 1060 and transmit information indicating the recommended settings of the camera 20 determined by the recommended settings determination unit 130 to the camera 20.

[0025] <Functional configuration of camera 20> The camera 20 is installed so as to include a predetermined area in its shooting range. The predetermined area includes, for example, an area where a gate for managing the entrance and exit of people is provided and an area set as an area to be monitored. The camera 20 shoots people present in the predetermined area while changing the camera settings. As illustrated in FIG. 1, the camera 20 includes a transmission unit 210, a setting change unit 220, and an imaging unit 230. The imaging unit 230 is a camera module including an optical system such as an imaging element and a lens. The transmission unit 210 transmits an image of a person generated using the imaging unit 230 and the camera settings when the camera 20 (imaging unit 230) generated the image to the information processing device 10 (external device). The setting change unit 220 acquires information indicating a camera setting recommended when the camera 20 (imaging unit 230) generates an image of a person (hereinafter, also referred to as "recommended setting information") from the information processing device 10 (external device). Furthermore, the setting change section 220 changes the camera settings of the camera 20 (imaging section 230) based on the recommended setting information acquired from the information processing device 10.

[0026] <Example of hardware configuration for camera 20> FIG. 3 is a block diagram illustrating the hardware configuration of the camera 20. As shown in FIG.

[0027] The camera 20 includes a control board 2000. The control board 2000 includes a bus 2010, a processor 2020, a memory 2030, a storage device 2040, an input / output interface 2050, and a network interface 2060.

[0028] The bus 2010 is a data transmission path for transmitting and receiving data among the processor 2020, the memory 2030, the storage device 2040, the input / output interface 2050, and the network interface 2060. However, the method of connecting the processor 2020 and the like to each other is not limited to a bus connection.

[0029] The processor 2020 is implemented by a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or the like.

[0030] The memory 2030 is a main storage device realized by a RAM (Random Access Memory) or the like.

[0031] The storage device 2040 is an auxiliary storage device realized by a hard disk drive (HDD), a solid state drive (SSD), a memory card, a read only memory (ROM), etc. The storage device 2040 stores program modules that realize each function of the camera 20 (transmission unit 210, setting change unit 220, imaging unit 230, etc.). The processor 2020 loads each of these program modules onto the memory 2030 and executes them, thereby realizing each function corresponding to each program module.

[0032] The input / output interface 2050 is an interface for connecting various modules to the control board 2000. As shown in Fig. 3, a camera module 2052 and the like are connected to the input / output interface 2050. The camera module 2052 includes an imaging element such as a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS), an image processing engine that generates image data based on an output signal from the imaging element, and a mechanism for controlling the attitude of the camera 20 (pan and tilt angles), the imaging magnification of the camera 20, the shutter speed of the camera 20, and the like.

[0033] The network interface 2060 is an interface for connecting the camera 20 to a network. This network is, for example, a LAN (Local Area Network) or a WAN (Wide Area Network). The network interface 2060 may connect to the network wirelessly or by wire. In the example of FIG. 3, the camera 20 is connected to the information processing device 10 via the network interface 2060. The camera 20 can communicate with the information processing device 10 via the network interface 2060 and transmit to the information processing device 10 an image in which a person appears and the camera settings used when the image was generated. The camera 20 can also communicate with the information processing device 10 via the network interface 2060 and acquire information indicating the recommended settings of the camera 20 determined by the recommended settings determination unit 130.

[0034] <Processing flow> FIG. 4 is a sequence diagram illustrating the flow of processing executed by the image processing system 1 of the first embodiment.

[0035] First, the camera 20 captures images while changing the camera settings (S102). Then, the transmission unit 210 transmits the image generated in the process of S102 and information indicating the camera settings when the image was generated to the information processing device 10 (S104).

[0036] Then, the authentication unit 110 uses the image acquired from the camera 20 to perform authentication processing of the person appearing in the image (S106). For example, the authentication unit 110 acquires from the camera 20 an image of a person passing through a gate that manages entry and exit to a specific area, and performs authentication processing on the person appearing in the image. Also, for example, the authentication unit 110 acquires from the camera 20 an image of a person present in a specific monitored area (for example, a large commercial facility or an event venue), and performs authentication processing on the person appearing in the image.

[0037] In the authentication process of S106, the authentication unit 110 acquires information indicating the authenticated person and a degree of certainty (authentication score) that the person in the image is the authenticated person. Specifically, the authentication unit 110 first processes the image acquired from the camera 20 to extract a plurality of feature points (points indicating the person's eyes, nose, mouth, etc.) and acquires data indicating the arrangement of the feature points. The authentication unit 110 then compares the data indicating the arrangement of the feature points with registered data registered in advance for personal authentication, and calculates the similarity between the data. The authentication unit 110 then identifies the person corresponding to the registered data for which a similarity equal to or greater than a predetermined reference value has been obtained (the registered data for which the highest similarity has been obtained when there are multiple registered data) as the "authenticated person," and acquires the similarity as the authentication score.

[0038] Then, the accumulation unit 120 accumulates the authentication process result (authenticated person and authentication score) and the camera settings obtained in the process of S106 in a predetermined storage area in association with each other (S108). The accumulation unit 120 accumulates the authentication process result using each image (authenticated person and authentication score) and the camera settings in, for example, a database constructed in the storage device 1040.

[0039] Then, the recommended setting determination unit 130 determines the recommended setting recommended when the camera 20 generates an image based on the correspondence between the authentication score and the camera setting stored in the storage area (S110). Here, the recommended setting determination unit 130 can execute a process of determining the recommended setting at any timing. For example, the recommended setting determination unit 130 may be configured to determine the recommended setting using the information stored in the database every time a predetermined period of time elapses. Also, the recommended setting determination unit 130 may be configured to determine the recommended setting using the information stored in the database when a statistical value (average value, etc.) of the authentication score obtained in the most recent authentication process falls below a reference value for determining whether or not the camera setting needs to be updated. By reviewing the recommended setting of the camera 20 periodically or when a predetermined condition related to the authentication score is satisfied, the accuracy of generating an image that can obtain a good authentication score can be maintained.

[0040] Here, a flow of the recommended setting determination unit 130 determining the recommended setting based on the correspondence between the authentication score and the camera setting stored in the storage area will be described. As an example, when there is one person to be the subject of the authentication process, or when a person having average physical characteristics can be specified in advance among the people to be authenticated, the recommended setting determination unit 130 can specify the camera setting with the highest authentication score for the specific person and determine the camera setting as the recommended setting for the camera 20. As a specific example, consider a case where information as illustrated in FIG. 5 is stored in the database. FIG. 5 is a diagram showing an example of a database that stores the result of the authentication process and the camera setting in association with each other. The database illustrated in FIG. 5 stores the result of the authentication process for a specific person (person A) in association with the authentication score. In the example of FIG. 5, the authentication score for the camera setting "setting 7" is the maximum value "92". In this case, the recommended setting determination unit 130 determines the camera setting "setting 7" with the highest authentication score as the recommended setting for the camera 20.

[0041] As another example, when multiple people are targets of the authentication process, the recommended setting determination unit 130 may refer to information stored in the database to identify camera settings that will result in the authentication scores of the multiple people being equal to or greater than a predetermined reference value, and determine the camera settings as the recommended settings for the camera 20. As a specific example, consider a case where information as shown in FIG. 6 is stored in the database, and the predetermined reference value for the authentication score is "70". FIG. 6 is a diagram showing another example of a database that stores the results of the authentication process and the camera settings in association with each other. In the example of FIG. 6, in the camera setting of "setting 1", the authentication scores of multiple people A to C are equal to or greater than the predetermined reference value. On the other hand, in the camera setting of "setting 2", the authentication scores of people A and C are equal to or greater than the predetermined reference value, but the authentication score of person C is less than the predetermined reference value. In this case, the recommended setting determination unit 130 determines the camera setting of "setting 1" as the recommended setting for the camera 20.

[0042] Moreover, it is assumed that the information shown in FIG. 7 is stored in the database, and the predetermined reference value for the authentication score is "70". FIG. 7 is a diagram showing another example of a database that stores the results of the authentication process in association with the camera settings. In the example of FIG. 7, the authentication scores of the persons A to C are equal to or greater than the predetermined reference value in the camera setting of "Setting 1" and the camera setting of "Setting 3". In this way, when there are multiple candidate camera settings, the recommended setting determination unit 130 may be configured to determine the recommended setting based on the statistical processing value of the authentication scores of the multiple persons. For example, in the example of FIG. 7, in the camera setting of "Setting 1", the total authentication score of the persons A to C is "225", and the average is "75". On the other hand, in the camera setting of "Setting 3", the total authentication score of the persons A to C is "270", and the average is "90". In such a case, the recommended setting determination unit 130 determines the camera setting of "Setting 3" with a large statistical processing value such as the total value or the average value as the recommended setting for the camera 20.

[0043] Returning to FIG. 4, in order to change the camera settings of the camera 20 to the recommended settings determined in the process of S110, the camera control unit 140 generates recommended setting information indicating the recommended settings and transmits it to the camera 20 (S112). The recommended setting information is information indicating recommended setting values ​​for at least one of the attitude of the camera 20 (pan or tilt angle), the imaging magnification, the length of exposure time (shutter speed), brightness, saturation, shooting resolution, and compression quality. By transmitting the recommended setting information to the camera 20, the camera control unit 140 can control at least one of the attitude of the camera 20 (pan or tilt angle), the imaging magnification of the camera 20, the length of exposure time of the camera 20 (shutter speed), brightness, saturation, shooting resolution, and compression quality.

[0044] When the setting change unit 220 acquires the recommended setting information from the information processing device 10, it changes the camera setting of the camera 20 to the recommended setting indicated by the recommended setting information (S114). Specifically, the setting change unit 220 controls a mechanism for controlling the attitude of the camera 20 (pan or tilt angle), a mechanism for controlling the imaging magnification of the camera 20, a mechanism for controlling the shutter speed of the camera 20, or an image processing engine (a part for controlling brightness, saturation, shooting resolution, compression quality, etc.) that generates an image based on an output signal from an imaging element, in accordance with the camera setting indicated by the recommended setting information acquired from the information processing device 10. As a result, at least one of the attitude, imaging magnification, length of exposure time (shutter speed), brightness, saturation, shooting resolution, and compression quality of the camera 20 is changed to the recommended setting.

[0045] <Actions and Effects> In this embodiment, first, a score (authentication score) obtained by the authentication process using an image and the camera settings of the camera 20 when the image was generated are stored in a storage area in association with each other. Then, based on the information thus stored in the storage area, a camera setting (recommended setting) of the camera 20 recommended for generating an image that can obtain a highly reliable authentication result is determined and notified to the camera 20. Then, the camera setting of the camera 20 is automatically changed to the recommended setting. That is, the adjustment work of the camera 20 to obtain an image suitable for the authentication process is automated. According to the configuration of this embodiment, an effect of reducing the workload of the administrator of the image processing system 1 when the system is introduced can be expected. In addition, since the image processing system 1 can be provided at a low cost by reducing the labor cost by reducing the workload when the system is introduced, the effect of promoting the use of the image processing system 1 can be expected.

[0046] <Modification> When the camera 20 is a so-called intelligent camera equipped with a processor for image processing, at least a part of the processing unit provided in the information processing device 10 may be provided in the camera 20. For example, the camera 20 (intelligent camera) may have a processing unit (processing unit corresponding to the authentication unit 110) that executes authentication processing using a face image, and the information processing device 10 may have a storage unit 120, a recommended setting determination unit 130, and a camera control unit 140. In this case, a processing unit corresponding to the authentication unit 110 provided in the camera 20 executes authentication processing using an image, and the information processing device 10 acquires the authentication score and camera settings obtained in the authentication processing from the camera 20 and accumulates them in the storage device 1040 or the like. Then, the information processing device 10 determines recommended settings based on the accumulated information (combination of authentication score and camera settings) and notifies the camera 20 of the recommended settings. With such a configuration, the above-mentioned effects can also be obtained.

[0047] Furthermore, the recommended settings determination unit 130 may be configured to determine the recommended settings according to time conditions based on the operation timing of the camera 20 (the timing when an image is generated by the camera 20). For example, the recommended settings determination unit 130 may be configured to determine recommended settings by season, by time of day, by month or day of the week, etc., based on the operation timing of the camera 20 (the timing when an image is generated by the camera 20). In this way, differences in recommended settings caused by differences in ambient light (light received by the image sensor of the camera 20) depending on the time of day, season, etc. can be absorbed, and the above-mentioned effects can be stably obtained.

[0048] [Second embodiment] So-called multi-factor authentication may be adopted, which combines biometric authentication using a person's physical characteristics such as a face image with knowledge authentication using knowledge that only the person knows such as a password, or possession authentication using an object that only the person has such as an IC card. In this embodiment, an example of the configuration of the image processing system 1 when multi-factor authentication is adopted will be described. This embodiment is similar to the above-mentioned first embodiment, except for the points described below.

[0049] <Example of functional configuration> Fig. 8 is a diagram illustrating the configuration of an image processing system 1 in the second embodiment. As shown in Fig. 8, the image processing system 1 of this embodiment includes an information processing device 10, a camera 20, and a reading device 30. The reading device 30 is a device for reading an IC card 40 that stores information for individually identifying a person (personal identification information).

[0050] Furthermore, the recommended setting determination unit 130 of this embodiment determines recommended settings for the camera 20 for each person based on the correspondence between the authentication score and the camera settings, and stores the recommended settings for each person in the recommended setting storage unit 132. Furthermore, the camera control unit 140 of this embodiment operates as follows. First, the camera control unit 140 acquires personal identification information read from the IC card 40 by the reading device 30. Then, the camera control unit 140 identifies a recommended setting that corresponds to the acquired personal identification information from among the recommended settings for each person stored in the recommended setting storage unit 132. Then, the camera control unit 140 controls the camera 20 based on the identified recommended setting. <Processing flow> FIG. 9 is a sequence diagram showing the flow of processing up to the accumulation of individual recommended settings in recommended setting storage unit 132. As shown in FIG.

[0051] First, the camera 20 takes an image while changing the camera settings (S202). Then, the transmission unit 210 transmits the image generated in the process of S102 and information indicating the camera settings when the image was generated to the information processing device 10 (S204). Then, the authentication unit 110 uses the image acquired from the camera 20 to perform authentication processing of the person appearing in the image (S206). Then, the storage unit 120 stores the result of the authentication processing obtained in the process of S106 (the authenticated person and the authentication score) and the camera settings in a predetermined storage area in association with each other (S208). Then, the recommended setting determination unit 130 determines the recommended settings that are recommended when the camera 20 generates an image based on the correspondence between the authentication scores and the camera settings stored in the storage area (S210). The processes from S202 to S210 are the same as the processes from S102 to S110 in FIG. 4.

[0052] The recommended setting determination unit 130 stores the personal identification information assigned to the person authenticated in the authentication process of S206 and the information indicating the recommended setting determined in S210 in a storage area such as the storage device 1040 in association with each other (S212). As a result, information indicating the recommended setting for each individual is stored in a storage area such as the storage device 1040 (e.g., FIG. 10). FIG. 10 is a diagram showing an example of information stored in the recommended setting storage unit 132. The information exemplified in FIG. 10 indicates that the camera setting of the camera 20 recommended for photographing person A is "setting 1", the camera setting of the camera 20 recommended for photographing person B is "setting 2", and the camera setting of the camera 20 recommended for photographing person C is "setting 3".

[0053] FIG. 11 is a sequence diagram showing the flow of a process for controlling the camera 20 using the personally recommended settings.

[0054] First, the reader 30 performs short-distance wireless communication with the IC card 40 to read the personal identification information stored in the IC card 40 and transmits it to the information processing device 10 (S302, S304).

[0055] The camera control unit 140 identifies the recommended settings based on the personal identification information acquired from the reading device 30 (S306). For example, consider a case where information as shown in Fig. 10 is stored in the recommended settings storage unit 132. In this case, if the personal identification information acquired in the process of S304 is information indicating person A, the camera control unit 140 can identify the camera setting of "Setting 1" as the recommended setting for that person from the information exemplified in Fig. 10. Then, the camera control unit 140 transmits recommended setting information indicating the recommended settings for each individual identified in the process of S306 to the camera 20 (S308).

[0056] When the setting change unit 220 acquires the recommended setting information from the information processing device 10, it changes the camera setting of the camera 20 to the recommended setting indicated by the recommended setting information (S310). For example, if the recommended setting information acquired in the process of S308 is the recommended setting for person A (camera setting of "setting 1"), the setting change unit 220 changes the camera setting of the camera 20 to the recommended setting for person A (camera setting of "setting 1").

[0057] <Actions and Effects> As described above, in this embodiment, when a person is authenticated based on personal identification information acquired from an IC card 40 or the like, the camera settings of the camera 20 recommended for photographing that person (individual recommended settings) are identified. Then, the camera settings of the camera 20 are controlled based on the identified recommended settings. According to the configuration of this embodiment, the optimal camera settings for each person can be read and applied. This makes it possible to avoid the problem that the optimal camera settings for one person are not suitable for another person. In other words, it is expected to have the effect of lowering the false rejection rate in the biometric authentication process and improving the overall accuracy of authentication.

[0058] Although the embodiments of the present invention have been described above with reference to the drawings, the present invention should not be interpreted as being limited thereto, and various modifications, improvements, etc. can be made based on the knowledge of a person skilled in the art without departing from the gist of the present invention. The multiple components disclosed in the embodiments can be appropriately combined to form various inventions. For example, some components may be deleted from all the components shown in the embodiments, or components of different embodiments may be appropriately combined.

[0059] In addition, in the sequence diagrams used in the above description, multiple steps (processes) are described in order, but the order of the steps executed in each embodiment is not limited to the order described. In each embodiment, the order of the steps shown in the diagrams can be changed as long as it does not cause any problems in terms of content.

[0060] A part or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes. 1. a storage means for storing in a storage area a score obtained in an authentication process using an image including a person and a camera setting when the camera generated the image; a recommended setting determination means for determining a recommended setting for the camera based on a correspondence relationship between the score and the camera setting; a camera control means for controlling the camera based on the recommended settings; An information processing device comprising: 2. the camera control means controls at least one of the attitude of the camera, the imaging magnification of the camera, the length of the exposure time of the camera, the brightness, the saturation, the imaging resolution, and the compression quality; 1. An information processing device according to the present invention. 3. The recommended setting determination means determines the camera setting with the largest score as the recommended setting. 1. An information processing device according to 1. or 2. 4. the recommended setting determination means determines, as the recommended setting, the camera setting for which the scores of a plurality of persons are equal to or greater than a predetermined reference value; 1. An information processing device according to 1. or 2. 5. the recommended setting determination means, when there are a plurality of camera settings for which the scores of a plurality of persons are equal to or greater than a predetermined reference value, determines the recommended setting using a statistically processed value of the scores calculated for each of the camera settings. 4. An information processing device according to the present invention. 6. The recommended setting determination means determines the recommended setting at predetermined intervals. 6. An information processing device according to any one of 1 to 5. 7. the recommended setting determination means determines the recommended setting for each time condition based on an operation timing of the camera. 7. An information processing device according to any one of 1 to 6. 8. Further comprising an authentication means for executing the authentication process. 8. An information processing device according to any one of 1. to 7. 9. The authentication means executes the authentication process on a person passing through a gate provided in a predetermined area. 8. An information processing device according to the present invention. 10. The computer storing in a memory area a score obtained by the authentication process of the person appearing in the image and the camera settings at the time the camera generated the image; determining a recommended setting for the camera based on a correspondence relationship between the score stored in the storage area and the camera setting; Controlling the camera based on the recommended settings. A camera control method comprising: 11. The computer, Controlling at least one of the attitude of the camera, the imaging magnification of the camera, the length of the exposure time of the camera, the brightness, the saturation, the imaging resolution, and the compression quality. The camera control method according to claim 10, further comprising: 12. The computer, The camera setting with the highest score is determined as the recommended setting. The camera control method according to claim 10 or 11, further comprising: 13. The computer, determining, as the recommended setting, the camera setting for which the scores of a plurality of persons are equal to or greater than a predetermined reference value; The camera control method according to claim 10 or 11, further comprising: 14. The computer, When there are a plurality of camera settings for which the scores of a plurality of people are equal to or greater than a predetermined reference value, the recommended setting is determined using a statistically processed value of the scores calculated for each of the camera settings. 14. The camera control method according to claim 13, further comprising: 15. The computer, determining the recommended settings at predetermined intervals; 15. The camera control method according to any one of 10. to 14., further comprising: 16. The computer, determining the recommended settings for each time condition based on an operation timing of the camera; The camera control method according to any one of claims 10 to 15, further comprising: 17. The computer, Execute the authentication process. 17. The camera control method according to any one of claims 10 to 16, further comprising: 18. The computer, Executing the authentication process for a person passing through a gate provided in a predetermined area. 17. The camera control method according to claim 17, further comprising: 19. A program for causing a computer to execute the camera control method according to any one of 10. to 18. 20. A camera, A transmitting means for transmitting an image including a person and the camera settings when the camera generated the image to an external device; a setting change means for acquiring recommended setting information indicating recommended camera settings when the camera generates an image from the external device, and changing the camera settings of the camera based on the recommended setting information; A camera comprising: twenty one. A camera that generates images of people by changing the camera settings, an authentication means for executing an authentication process using the image; A storage means for storing the score obtained in the authentication process and the camera settings when the camera generated the image in a storage area; a recommended setting determination means for determining a recommended setting for the camera based on a correspondence relationship between the score stored in the storage area and the camera setting; a camera control means for controlling the camera based on the recommended settings; An image processing system comprising: twenty two. the camera control means controls at least one of the attitude of the camera, the imaging magnification of the camera, the length of the exposure time of the camera, the brightness, the saturation, the imaging resolution, and the compression quality; 21. An image processing system as described in claim 21. twenty three. The recommended setting determination means determines the camera setting with the largest score as the recommended setting. 21. An image processing system according to claim 22. twenty four. the recommended setting determination means determines, as the recommended setting, the camera setting for which the scores of a plurality of persons are equal to or greater than a predetermined reference value; 21. An image processing system according to claim 22. twenty five. the recommended setting determination means, when there are a plurality of camera settings for which the scores of a plurality of persons are equal to or greater than a predetermined reference value, determines the recommended setting using a statistically processed value of the scores calculated for each of the camera settings. 24. An image processing system as described in claim 24. 26. The recommended setting determination means determines the recommended setting at predetermined intervals. 26. An image processing system according to any one of claims 21 to 25. 27. the recommended setting determination means determines the recommended setting for each time condition based on an operation timing of the camera. 27. An image processing system according to any one of claims 21 to 26. 28. Further comprising an authentication means for executing the authentication process. 27. An image processing system according to any one of claims 21 to 27. 29. The authentication means executes the authentication process on a person passing through a gate provided in a predetermined area. 28. An image processing system as described in claim 28. [Explanation of symbols]

[0061] 1. Image Processing System 10. Information processing device 1000 Control Board 1010 Bus 1020 Processor 1030 Memory 1040 Storage Device 1050 Input / Output Interface 1060 Network Interface 110 Authentication Section 120 Storage Unit 130 Recommended Settings Decision Unit 132 Recommended settings memory section 140 Camera control unit 20 Camera 2000 Control Board 2010 Bus 2020 Processors 2030 Memory 2040 Storage Device 2050 Input / Output Interface 2052 Camera Module 2060 Network Interface 210 Transmitter 220 Setting change section 230 Imaging unit 30 Reading device 40 IC Card

Claims

1. a storage means for storing authentication information obtained by processing an image including a person and a camera setting when the camera generated the image; a recommended setting determination means for determining recommended settings for the camera for each person based on a correspondence relationship between the authentication information for each person and the camera settings, and storing the recommended settings in a predetermined storage area; An acquisition means for acquiring personal identification information; a camera control means for reading from the storage area recommended settings of the camera corresponding to the person identified by the acquired personal identification information, and controlling the camera based on the read recommended settings; Equipped with The recommended setting determination means determines the recommended setting at predetermined intervals. Information processing device.

2. A storage means for storing authentication information obtained by processing an image including a person and a camera setting when the camera generated the image; a recommended setting determination means for determining recommended settings for the camera for each person based on a correspondence relationship between the authentication information for each person and the camera settings, and storing the recommended settings in a predetermined storage area; An acquisition means for acquiring personal identification information; a camera control means for reading from the storage area recommended settings of the camera corresponding to the person identified by the acquired personal identification information, and controlling the camera based on the read recommended settings; Equipped with The recommended setting determination means includes: determining, as the recommended settings, the camera settings for which the authentication information of a plurality of persons satisfies a predetermined condition; When there are a plurality of camera settings for which the authentication information of a plurality of persons satisfies a predetermined condition, the recommended setting is determined using a statistically processed score based on the authentication information, which is calculated for each of the camera settings. Information processing device.

3. the camera control means controls at least one of the attitude of the camera, the imaging magnification of the camera, the length of the exposure time of the camera, the brightness, the saturation, the imaging resolution, and the compression quality; 3. The information processing device according to claim 1 or 2.

4. The recommended setting determination means determines, as the recommended setting, the camera settings for which the authentication information of a plurality of persons satisfies a predetermined condition.

4. The information processing apparatus according to claim 1 or claim 3 which cites claim 1.

5. the recommended setting determination means determines the recommended setting by using a statistically processed score based on the authentication information, which is calculated for each of the camera settings, when there are a plurality of camera settings for which the authentication information of a plurality of people satisfies a predetermined condition. The information processing device according to claim 4.

6. The recommended setting determination means determines the recommended setting at predetermined intervals. The information processing device according to claim 2 .

7. At least one computer storing authentication information obtained by processing an image showing a person and the camera settings at the time the camera generated the image; determining a recommended setting for the camera for each person for each predetermined period based on a correspondence relationship between the authentication information for each person and the camera setting, and storing the recommended setting in a predetermined storage area; Obtaining personally identifiable information, reading from the storage area a recommended setting of the camera corresponding to the person identified by the acquired personal identification information, and controlling the camera based on the read recommended setting; A camera control method comprising:

8. At least one computer, a storage means for storing authentication information obtained by processing an image including a person and a camera setting when the camera generated the image; a recommended setting determination means for determining recommended settings for the camera for each person based on a correspondence relationship between the authentication information for each person and the camera settings, and storing the recommended settings in a predetermined storage area; A means for acquiring personally identifiable information; a camera control means for reading from the storage area recommended settings of the camera corresponding to the person identified by the acquired personal identification information, and controlling the camera based on the read recommended settings; A program for causing the device to function as a The recommended setting determination means determines the recommended setting at predetermined intervals. program.

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