Information processing device, information processing system, information processing method, and program

Abstract

To properly irradiate an object with light.SOLUTION: An information processing device comprises: control means which controls an illumination device to emit light in at least one of a first mode in which a moving first object is irradiated with light when the first object is positioned in a predetermined region and a second mode in which a moving second object is irradiated with light when the second object is positioned in the predetermined region; and acquisition means which acquires at least one of biological information for the first object irradiated with light by the illumination device and biological information for the second object irradiated with light by the illumination device.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to the technical fields of an information processing device, an information processing system, an information processing method, and a program. [Background technology]

[0002] BACKGROUND ART There are known devices that irradiate a person with light. For example, Patent Document 1 discloses a device that adjusts the amount of light based on the position of the person and irradiates the person with light. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-134678 Summary of the Invention [Problem to be solved by the invention]

[0004] This disclosure aims to improve upon the related art discussed above. [Means for solving the problem]

[0005] One aspect of the information processing device disclosed herein includes a control means for controlling a lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area, and an acquisition means for acquiring at least one of biometric information of the first object irradiated with light by the lighting device and biometric information of the second object irradiated with light by the lighting device.

[0006] One aspect of the information processing system disclosed herein includes a control means for controlling a lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area, and an acquisition means for acquiring at least one of biometric information of the first object irradiated with light by the lighting device and biometric information of the second object irradiated with light by the lighting device.

[0007] One aspect of the information processing method disclosed herein controls a lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area, and acquires at least one of biometric information of the first object irradiated with light by the lighting device and biometric information of the second object irradiated with light by the lighting device.

[0008] One aspect of the program of this disclosure causes a computer to execute an information processing method that controls a lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area, and acquires at least one of biometric information of the first object irradiated with light by the lighting device and biometric information of the second object irradiated with light by the lighting device. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a block diagram showing a configuration of an information processing device according to the present disclosure. [Figure 2] 1 is a flowchart showing a flow of information processing operations in an information processing device according to the present disclosure. [Figure 3] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. [Figure 4] 1 is a schematic diagram showing an overview of an information processing system according to the present disclosure. [Figure 5] 1 is a block diagram showing a configuration of an information processing device according to the present disclosure. [Figure 6] 1 is a flowchart showing a flow of information processing operations in an information processing device according to the present disclosure. [Figure 7] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. [Figure 8] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. [Figure 9] 1 is a schematic diagram showing an overview of an information processing system according to the present disclosure. [Figure 10] 1 is a block diagram showing a configuration of an information processing device according to the present disclosure. [Figure 11] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. [Figure 12] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. [Figure 13] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. [Figure 14] 10 is a schematic diagram showing an overview of a modified example of the lighting device according to the present disclosure. [Figure 15] 1 is a schematic diagram showing an overview of an information processing system according to the present disclosure. [Figure 16] 1 is a block diagram showing a configuration of an information processing device according to the present disclosure. [Figure 17] 1 is a schematic diagram illustrating an overview of an information processing operation in an information processing device according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of an information processing device, an information processing system, an information processing method, and a program will be described with reference to the drawings. [1: First embodiment]

[0011] An information processing device, an information processing system, an information processing method, and a program according to a first embodiment will be described below. An information processing device, an information processing system, an information processing method, and a program according to a first embodiment will be described below using an information processing device 1 according to this disclosure.

[0012] An information processing device 1 according to this disclosure will be described with reference to Figures 1 and 2. As shown in Figure 1, the information processing device 1 includes a control unit 11 and an acquisition unit 12. The operation of the information processing device 1 will be described with reference to the flowchart in Figure 2.

[0013] 2, the control unit 11 controls the lighting device to irradiate light in at least one of a first mode and a second mode (step S11). The first mode is a mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area. The second mode is a mode in which light is irradiated onto at least a second object when the second object is located in a predetermined area.

[0014] The first and second targets may be targets from which biometric information is acquired. The biometric information is information relating to physical characteristics of the targets. Examples of the biometric information include at least one of a facial image including the target's face, an iris image including the target's iris, a fingerprint pattern of the target, a palmprint pattern of the target, a vein pattern of the target's fingers and palm, audio information including the target's voice, and sound information including the target's otoacoustic emissions.

[0015] Fig. 3(a) illustrates a case where light is irradiated in the first mode. Fig. 3(a) illustrates a case where a moving first object T1 is located in a predetermined area PA, and light L is irradiated onto the first object T1 located in the predetermined area PA.

[0016] Fig. 3(b) illustrates a case where light is irradiated in the second mode. Fig. 3(b) illustrates a case where a moving second object T2 is located in a predetermined area PA, and light L is irradiated onto the second object T2 located in the predetermined area PA.

[0017] The acquisition unit 12 acquires at least one of the biometric information of the first object irradiated with light from the lighting device and the biometric information of the second object irradiated with light from the lighting device (step S12). For example, the acquisition unit 12 may acquire at least one of the biometric information of the first object T1 in the example illustrated in Fig. 3(a) and the biometric information of the second object T2 in the example illustrated in Fig. 3(b). In other words, the acquisition unit 12 may acquire at least one of the biometric information of the first object T1 located in the predetermined area PA and the biometric information of the second object T2 located in the predetermined area PA.

[0018] When biometric information is acquired by imaging, the predetermined region may be a region suitable for imaging. For example, when a target is located in the predetermined region, an image in focus of the target may be acquired.

[0019] In this way, the information processing device 1 controls the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in a predetermined area, and performs an information processing method to acquire at least one of the biometric information of the first object irradiated with light by the lighting device and the biometric information of the second object irradiated with light by the lighting device.

[0020] The information processing device 1 described above may be realized by a computer reading a computer program recorded on a recording medium. In this case, the computer program may cause the computer to execute an information processing method for controlling an illumination device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in a predetermined area, and acquiring at least one of biometric information of the first object irradiated with light by the illumination device and biometric information of the second object irradiated with light by the illumination device. [Technical effect of information processing device 1]

[0021] The information processing device 1 according to this disclosure can irradiate a target located in a predetermined area with light and acquire biometric information of the target located in the predetermined area. [2: Second embodiment]

[0022] A second embodiment of an information processing device, an information processing system, an information processing method, and a program will be described with reference to Fig. 4 to Fig. 8. Hereinafter, the second embodiment of an information processing device, an information processing system, an information processing method, and a program will be described using an information processing system S. Note that, for the second embodiment, descriptions that overlap with the description of the first embodiment will be omitted as appropriate. [2-1: Configuration of Information Processing System S]

[0023] Fig. 4 is a schematic diagram showing an overview of an information processing system S according to the present disclosure. Fig. 5 is a block diagram showing the configuration of an information processing device 2 according to the present disclosure.

[0024] As shown in FIG. 4, the information processing system S is applied to a location where a first object T1 and a second object T2 can move side by side. This location where the first object T1 and the second object T2 can move side by side is referred to as a lane L. The destination of the first object T1 and the second object T2 may be at the end of the direction of the arrow illustrated in FIG. 4. The first object T1 and the second object T2 may be guided to move in the direction of the arrow illustrated in FIG. 4. The first object T1 and the second object T2 move generally in the longitudinal direction of the lane L. The direction in which the first object T1 and the second object T2 move may be referred to as the "movement direction." In the lane L, the first object T1 and the second object T2 can move side by side in a direction other than the movement direction. In the lane L, the first object T1 and the second object T2 may be able to move side by side in the short direction of the lane L (referred to as the "width direction of the lane L"). The width direction of the lane L may have a length approximately twice the width of the passageway through which an average adult can move. In other words, the lane L has a width that allows two subjects lined up in directions different from the direction of movement to move.

[0025] The information processing system S may be applied to determining whether or not a subject can enter a restricted area and to managing entry to the restricted area. The restricted area may be an area into which a subject who has been successfully authenticated can enter. The restricted area may be an area before the end point E of the lane L in the direction of movement, as illustrated in FIG. 4. Therefore, the information processing system S may be configured to authenticate a subject in the lane L after the end point E of the lane L in the direction of movement. The subject may be a subject of biometric authentication (i.e., authentication using biometric information). The information processing system S may be configured to authenticate the subject through biometric authentication.

[0026] As described above, biometric information is information related to the physical characteristics of a subject. Examples of biometric information include at least one of a facial image including the subject's face, an iris image including the subject's iris, a fingerprint pattern of the subject, a palm print pattern of the subject, a vein pattern of the subject's fingers and palm, audio information including the subject's voice, and sound information including the subject's otoacoustic emissions. Examples of authentication using biometric information include at least one of face authentication, iris authentication, fingerprint authentication, palm print authentication, vein authentication, voiceprint authentication, and earacoustic authentication. A subject may be authenticated using one piece of biometric information. Alternatively, a subject may be authenticated using a combination of multiple pieces of biometric information. That is, a subject may be a subject of multimodal biometric authentication.

[0027] As shown in FIG. 4, the information processing system S may include a camera 27, a first camera 281, a second camera 282, a first lighting device 291, a second lighting device 292, and an information processing device 2. When the first camera 281 and the second camera 282 are described without distinction, they may be referred to as an iris camera 28. The iris camera 28 may be a camera capable of capturing light in the visible wavelength range (a so-called visible light camera). Alternatively, the camera 27 may be a camera capable of capturing light in the near-infrared wavelength range (a so-called near-infrared camera). Furthermore, the image captured by the camera 27 may be a concept that includes a moving image. The first camera 281 and the second camera 282 may be a camera capable of capturing light in the near-infrared wavelength range (a so-called near-infrared camera). Alternatively, the first camera 281 and the second camera 282 may be a camera capable of capturing light in the visible wavelength range (a so-called visible light camera). Furthermore, the image captured by the first camera 281 and the second camera 282 may be a concept that includes a moving image. The first lighting device 291 and the second lighting device 292 may be capable of emitting light in the near-infrared wavelength range, or may be capable of emitting light in the visible light wavelength range.

[0028] The camera 27 captures an image of the space in which the first object T1 and the second object T2 can move side by side. The camera 27 captures an image including the first object T1 and the second object T2. The camera 27 may capture an image of the space in which the first object T1 and the second object T2 can move side by side in the width direction of the lane L. As shown in FIG. 4, the camera 27 may be provided in a location that provides an overhead view of the first object T1 and the second object T2 moving side by side. The camera 27 may be provided to capture an image of the area in which the first object T1 and the second object T2 can move side by side. The camera 27 may be provided to capture an image of an area that can be captured by at least one of the first camera 281 and the second camera 282. The camera 27 may be provided to capture an image of an area that can be irradiated with light by at least one of the first lighting device 291 and the second lighting device 292.

[0029] The first camera 281 may be provided at one end in a direction different from the direction of movement. For example, the first camera 281 may be provided at one end in a horizontal direction perpendicular to the direction of movement. In other words, the first camera 281 may be provided at one end in the width direction of the lane L. The second camera 282 may be provided at the other end in the direction different from the direction of movement. For example, the second camera 282 may be provided at the other end in the horizontal direction perpendicular to the direction of movement. In other words, the second camera 282 may be provided at the other end in the width direction of the lane L. In other words, it may be said that a space exists between the first camera 281 and the second camera 282 in which the first object T1 and the second object T2 can move side by side.

[0030] The first camera 281 may capture an image of the iris of a target moving on one side of the width direction of the lane L from one end side of the lane L. In the case illustrated in FIG. 4, the first camera 281 may be provided on the right side of the lane L as seen from the target (the left side of the lane L as seen from the camera 27). Also, in the case illustrated in FIG. 4, the first camera 281 may capture an image of the iris of the first target T1 moving on the right side of the lane L from the right side of the lane L as seen from the target.

[0031] The second camera 282 may capture an image of the iris of a target moving on the other side of the width direction of the lane L from the other end side of the lane L. In the case illustrated in FIG. 4, the second camera 282 may be provided on the left side of the lane L as seen from the target (the right side of the lane L as seen from the camera 27). Also, in the case illustrated in FIG. 4, the second camera 282 may capture an image of the iris of the second target T2 moving on the left side of the lane L from the left side of the lane L as seen from the target.

[0032] The first lighting device 291 may be provided at one end in a direction different from the moving direction. For example, the first lighting device 291 may be provided at one end in a horizontal direction perpendicular to the moving direction. In other words, the first lighting device 291 may be provided at one end in the width direction of the lane L. The second lighting device 292 may be provided at the other end in the direction different from the moving direction. For example, the second lighting device 292 may be provided at the other end in the horizontal direction perpendicular to the moving direction. In other words, the second lighting device 292 may be provided at the other end in the width direction of the lane L. In other words, it may be said that a space exists between the first lighting device 291 and the second lighting device 292 in which the first object T1 and the second object T2 can move side by side.

[0033] The first lighting device 291 may irradiate light onto an eye region including the iris of a target moving on the lane L from one end side in the width direction of the lane L. In the case exemplified in FIG. 4, the first lighting device 291 may be provided on the right side of the lane L as seen from the target (the left side of the lane L as seen from the camera 27). Also, in the case exemplified in FIG. 4, the first lighting device 291 may irradiate light onto an eye region including the iris of a target moving on the lane L from the right side of the lane L as seen from the target. The first lighting device 291 may irradiate light onto at least the right eye region of a target moving on the lane L from the right side of the lane L as seen from the target.

[0034] The second illumination device 292 may irradiate light onto the eye region including the iris of a target moving on the lane L from the other end side in the width direction of the lane L. In the case exemplified in FIG. 4, the second illumination device 292 may be provided on the left side of the lane L as seen from the target (the right side of the lane L as seen from the camera 27). Also, in the case exemplified in FIG. 4, the second illumination device 292 may irradiate light onto the eye region including the iris of a target moving on the lane L from the left side of the lane L as seen from the target. The second illumination device 292 may irradiate light onto at least the left eye region of a target moving on the lane L from the left side of the lane L as seen from the target.

[0035] 4 illustrates an example in which camera 27 is provided in a location where it can overlook first object T1 and second object T2, but the location in which camera 27 is provided is not limited to this. Camera 27 may be provided near at least one of first camera 281 and second camera 282. For example, camera 27 may be provided in the same housing as first camera 281. Camera 27 may also be provided in the same housing as second camera 282. A plurality of cameras 27 may be provided. That is, camera 27 may be provided near first camera 281 and near second camera 282.

[0036] Camera 27 may capture images used to track the subject, and may capture images to determine which camera captures the subject's iris, and may capture images to identify the location of the subject's iris.

[0037] 5, the information processing device 2 includes an arithmetic unit 21, a storage device 22, a communication device 23, an input device 24, and an output device 25. The arithmetic unit 21, the storage device 22, the communication device 23, the input device 24, and the output device 25 may be connected via a data bus 26. The arithmetic unit 21 may include, for example, at least one of a central processing unit (CPU), a graphics processing unit (GPU), a field programmable gate array (FPGA), a tensor processing unit (TPU), and a quantum processor.

[0038] The storage device 22 may include, for example, at least one of a RAM (Random Access Memory), a ROM (Read Only Memory), a hard disk device, a magneto-optical disk device, an SSD (Solid State Drive), and an optical disk array. In other words, the storage device 22 may include a non-transitory recording medium. The storage device 22 is capable of storing desired data. For example, the storage device 22 may temporarily store a computer program executed by the calculation device 21. The storage device 22 may temporarily store data that is temporarily used by the calculation device 21 when the calculation device 21 is executing a computer program.

[0039] The communication device 23 may be capable of communicating with devices external to the information processing device 2. The communication device 23 may perform wired communication or wireless communication. The information processing device 2 is capable of communicating with the camera 27, the first camera 281, the second camera 282, the first lighting device 291, and the second lighting device 292 included in the information processing system S. The information processing device 2 may communicate with the camera 27, the first camera 281, the second camera 282, the first lighting device 291, and the second lighting device 292 via the communication device 23. The information processing device 2 and the camera 27, the first camera 281, the second camera 282, the first lighting device 291, and the second lighting device 292 may perform wireless communication or wired communication.

[0040] The input device 24 is a device capable of accepting information input to the information processing device 2 from the outside. The input device 24 may include an operation device (e.g., a keyboard, a mouse, a touch panel, etc.) that can be operated by a user of the information processing device 2. The input device 24 may include a recording medium reading device that can read information recorded on a recording medium that is detachable from the information processing device 2, such as a USB (Universal Serial Bus) memory. Note that when information is input to the information processing device 2 via the communication device 23 (in other words, when the information processing device 2 obtains information via the communication device 23), the communication device 23 may function as an input device.

[0041] The output device 25 is a device capable of outputting information to the outside of the information processing device 2. The output device 25 may output visual information such as characters or images, auditory information such as sound, or tactile information such as vibration, as the information. The output device 25 may include, for example, at least one of a display, a speaker, a printer, and a vibration motor. The output device 25 may be capable of outputting information to a recording medium detachable from the information processing device 2, such as a USB memory. Note that when the information processing device 2 outputs information via the communication device 23, the communication device 23 may function as the output device.

[0042] The arithmetic device 21 in this embodiment has, as logically realized functional blocks or physically realized processing circuits, a control unit 211, a biometric information acquisition unit 212, an image acquisition unit 213, a tracking unit 214, a determination unit 215, a position estimation unit 216, an authentication unit 217, and an authentication result notification unit 218. The "control unit 211" and the "biometric information acquisition unit 212" are components corresponding to the "control unit 11" and the "acquisition unit 12" in the first embodiment described above, respectively.

[0043] At least one of the control unit 211, the biometric information acquisition unit 212, the image acquisition unit 213, the tracking unit 214, the determination unit 215, the position estimation unit 216, the authentication unit 217, and the authentication result notification unit 218 may be realized in a format in which a logical functional block and a physical processing circuit (i.e., hardware) are mixed. When at least one of the control unit 211, the biometric information acquisition unit 212, the image acquisition unit 213, the tracking unit 214, the determination unit 215, the position estimation unit 216, the authentication unit 217, and the authentication result notification unit 218 is a functional block, at least one of the control unit 211, the biometric information acquisition unit 212, the image acquisition unit 213, the tracking unit 214, the determination unit 215, the position estimation unit 216, the authentication unit 217, and the authentication result notification unit 218 may be realized by the calculation device 21 executing a predetermined computer program.

[0044] The arithmetic device 21 may acquire (in other words, read) the predetermined computer program from the storage device 22. The arithmetic device 21 may read the predetermined computer program stored in a computer-readable, non-transitory recording medium using a recording medium reading device (not shown) included in the information processing device 2. The arithmetic device 21 may acquire (in other words, download or read) the predetermined computer program from a device (not shown) external to the information processing device 2 via the communication device 23. Note that the recording medium for recording the predetermined computer program executed by the arithmetic device 21 may be at least one of an optical disk, a magnetic medium, a magneto-optical disk, a semiconductor memory, and any other medium capable of storing a program. [2-2: Information processing method executed by information processing device 2]

[0045] The information processing device 2 is configured as a device for sequentially irradiating light onto an object moving in a movement direction, acquiring iris images, and performing authentication using the iris images (iris authentication). An information processing method executed by the information processing device 2 will be described with reference to Figs. 6 to 8. Fig. 6 is a flowchart showing the flow of the information processing method executed by the information processing device 2. Figs. 7 and 8 are schematic diagrams showing an overview of the information processing method executed by the information processing device 2.

[0046] As shown in FIG. 6, the image acquiring unit 213 acquires an image from the camera 27 (step S21). The camera 27 may be provided so as to be able to capture an image of the lane L (this area is referred to as the "tracking area") from the position where the first lighting device 291 and the second lighting device 292 are provided to a predetermined position behind the lane L in the direction of travel. In this case, it may be said that the image acquiring unit 213 acquires an image of the tracking area. The camera 27 may be installed at a height of, for example, 2.5 meters. If the camera 27 is installed at a position higher than the average human height, the image captured by the camera 27 is likely to include the head area and upper body area of ​​the target. The head area and upper body area may be areas suitable for tracking the target. Furthermore, if multiple cameras 27 are provided, the image acquiring unit 213 may acquire images from the multiple cameras 27.

[0047] FIG. 7 illustrates an example of an image I acquired from the camera 27. FIG. 7 illustrates an example of a case where there are three targets in the tracking area. The tracking unit 214 tracks each of the targets included in the image. The tracking unit 214 tracks each of the targets in the tracking area based on the image. In the example illustrated in FIG. 7, the tracking unit 214 may track each of the first target T1, the second target T2, and the third target T3.

[0048] The image used by the tracking unit 214 for tracking may be one frame of a video. In this case, the image acquisition unit 213 may sequentially acquire multiple frames constituting the video as images. The tracking unit 214 may perform tracking by associating the same object between a past frame and a current frame. For example, the tracking unit 214 may perform tracking by determining the position of the head region in the image. The tracking unit 214 may associate the same object in different frames based on the position of the head region in the image. The tracking unit 214 may perform tracking by determining the identity of the image pattern of the head region, for example. Furthermore, the tracking unit 214 may perform tracking by determining the similarity of feature information extracted from the image of the head region.

[0049] When multiple cameras 27 are provided, the tracking unit 214 may track each of the targets included in each of the multiple images captured by the multiple cameras 27. For example, the tracking unit 214 may integrate the targets included in each of the multiple images by extracting and matching characteristic parts of the targets. The characteristic parts of the targets may be, for example, the head region of the target, the upper body region of the target, or items worn by the target. The characteristic parts of the targets may be parts that can distinguish between individuals. The characteristic parts of the targets do not have to be parts that can identify an individual.

[0050] The determining unit 215 may identify two objects from the objects included in the image. The determining unit 215 may identify two objects located in the foreground in the image from among the objects for which it has not been determined whether they will be captured by the first camera 281 or the second camera 282.

[0051] 7, it is assumed that it has not been determined whether the first camera 281 or the second camera 282 will capture the image of any of the first object T1, the second object T2, and the third object T3. In this case, the determination unit 215 may identify the two objects (the first object T1 and the second object T2) located in the foreground in the image I. Note that, if it has not been determined whether the first camera 281 or the second camera 282 will capture the image of less than two objects, the determination unit 215 may identify the less than two objects.

[0052] Based on the image, the determination unit 215 may determine one of the two targets as the target to be imaged by the first camera 281, and the other of the two targets as the target to be imaged by the second camera 282. The determination unit 215 may determine the target to be imaged by the first camera 281 and the target to be imaged by the second camera 282 based on at least one of the positional relationship between the first target and the second target included in the image and the distance of each of the first target and the second target to the camera 27. In the example shown in FIG. 7, the determination unit 215 may determine, of the first target T1 and the second target T2, the first target T1 located on the left side of the image I as the first target whose iris is to be imaged by the first camera 281, and may determine the second target T2 located on the right side of the image I as the second target whose iris is to be imaged by the second camera 282. Alternatively, the determination unit 215 may divide the image along a vertical line, and determine that one pair of objects included in one of the divided images is to be captured by the first camera 281, and that the other object included in the other divided image is to be captured by the second camera 282. The determination unit 215 may divide the image in the vertical direction along the vertical line so that one object is included in one image, and the other object is included in the other image.

[0053] In addition, if the image contains one subject, the determination unit 215 may divide the image into left and right halves in the middle, and determine that the first camera 281 will capture the subject if the subject is included in the left image, and that the second camera 282 will capture the subject if the subject is included in the right image.

[0054] Alternatively, the determination unit 215 may determine that when the line of sight of the target is directed toward one end of the lane L from the center of the lane L, the first camera 281 provided at the end on one side of the lane L will capture an image of the target. Furthermore, the determination unit 215 may determine that when the line of sight of the target is directed toward the end on the other side of the lane L from the center of the lane L, the second camera 282 provided at the end on the other side of the lane L will capture an image of the target.

[0055] Furthermore, when the tracking unit 214 detects at least one of an object in the image at the same position and at the same size for a predetermined period of time or more, the tracking unit 214 may determine that the object is standing still. The information processing device 2 may have a mechanism for outputting information to the object to warn it that it is standing still, and may output the information to warn it that it is standing still. Furthermore, the camera 27 may be installed at a height that prevents the object from looking into the camera lens, thereby preventing the object from standing still.

[0056] The position estimation unit 216 estimates the position of a moving target when the target is located in a predetermined area (step S22). When a moving first target T1 is located in the predetermined area PA, the position of the first target T1 is referred to as a first position P1. The position estimation unit 216 may estimate the first position P1. Furthermore, when a moving second target T2 is located in the predetermined area PA, the position of the second target T2 is referred to as a second position P2. The position estimation unit 216 may estimate the second position P2.

[0057] The tracking unit 214 determines whether the moving target is located in a predetermined area (step S23). The predetermined area may be, for example, an area that is a predetermined distance away from a position in the moving direction where at least one of the first lighting device 291 and the second lighting device 292 is provided. The predetermined area may be an area in the lane L. If the moving target is located in the predetermined area (step S23: Yes), the control unit 211 irradiates light onto at least the target located in the predetermined area (step S24).

[0058] FIG. 8(a) illustrates a case where a moving first object T1 is located in a predetermined area PA. The control unit 211 may control the first lighting device 291 to irradiate the first position P1 with light L1, and may control the second lighting device 292 to irradiate the first position P1 with light L2. FIG. 8(a) illustrates a case where the object is moving to one side of the center of the arrangement direction. The arrangement direction is a direction different from the movement direction of the first object T1 and the second object T2. The arrangement direction may be the longitudinal direction of the predetermined area PA.

[0059] 8(a), the control unit 211 may control the amount of light L2 emitted by the second lighting device 292 to be greater than the amount of light L1 emitted by the first lighting device 291. That is, the control unit 211 may control the amount of light emitted by the second lighting device 292 provided at the other end of the lane L to be greater than the amount of light emitted by the first lighting device 291 provided at the other end of the lane L. Specifically, the control unit 211 may control the amount of light emitted by the second lighting device 292 provided at the other end of the lane L to be stronger than the light emitted by the first lighting device 291 provided at the one end of the lane L. Furthermore, the control unit 211 may control the amount of light emitted by the second lighting device 292 provided at the other end of the lane L to be longer than the light emitted by the first lighting device 291 provided at the one end of the lane L.

[0060] The control unit 211 may control the brightness of the illuminated object so that it is the same regardless of where the object is located in the predetermined area PA. In other words, the control unit 211 may control the brightness of the image acquired by the first camera 281 and the image acquired by the second camera 282 so that it is the same. Furthermore, the control unit 211 may control the brightness so that there is no difference between the left and right sides of the object. The light illuminating the object depends on the distance between the object and the lighting device. Therefore, when the lighting device irradiates the object with the same amount of light, the brightness of an object relatively far from the lighting device will be darker than the brightness of an object relatively close to the lighting device. Therefore, the control unit 211 controls the amount of light irradiated by the first lighting device 291 and the second lighting device 292 depending on the position of the object in the predetermined area PA.

[0061] 8(b) illustrates an example in which the moving second target T2 is located in a predetermined area PA. As illustrated in FIG. 8, the first position P1 and the second position P2 are different positions in the arrangement direction.

[0062] The control unit 211 may control the first lighting device 291 to irradiate the second position P2 with light L1, and may control the second lighting device 292 to irradiate the second position P2 with light L2. FIG. 8(b) illustrates a case where an object is moving to the other side of the center in the lining direction. In the case illustrated in FIG. 8(b), the control unit 211 may control the first lighting device 291 to emit more light L1 than the second lighting device 292 to emit more light L2. In other words, the control unit 211 may control the first lighting device 291 provided at one end of the lane L to emit more light than the second lighting device 292 provided at the other end of the lane L.

[0063] The control unit 211 may control the amount of light L1 emitted by the first lighting device 291 to be greater in the case illustrated in Fig. 8(b) than in the case illustrated in Fig. 8(a). The control unit 211 may also control the amount of light L2 emitted by the second lighting device 292 to be greater in the case illustrated in Fig. 8(a) than in the case illustrated in Fig. 8(b).

[0064] FIG. 8(c) illustrates a case where a moving third object T3 is located in a predetermined area PA. The control unit 211 may control the first lighting device 291 to irradiate the third object T3 with light L1 and the second lighting device 292 to irradiate the third object T3 with light L2. FIG. 8(c) illustrates a case where the object is moving in the center of the arrangement direction. In the case illustrated in FIG. 8(c), the control unit 211 may control the light L1 irradiated by the first lighting device 291 and the light L2 irradiated by the second lighting device 292 so that the light intensity is equal. The control unit 211 may control the light L1 irradiated by the first lighting device 291 so that the light intensity is greater in the case illustrated in FIG. 8(c) than in the case illustrated in FIG. 8(a). The control unit 211 may also control the light L1 irradiated by the first lighting device 291 so that the light intensity is greater in the case illustrated in FIG. 8(b) than in the case illustrated in FIG. 8(c). Furthermore, the control unit 211 may control the second lighting device 292 to emit more light L2 in the case illustrated in FIG. 8(a) than in the case illustrated in FIG. 8(c). Furthermore, the control unit 211 may control the second lighting device 292 to emit more light L2 in the case illustrated in FIG. 8(c) than in the case illustrated in FIG. 8(b). Note that a mode in which light is emitted at least to a third object when the moving third object is located in a predetermined area may be referred to as a third mode. In this case, the control unit 211 may control the lighting device to emit light in at least one of the first mode, the second mode, and the third mode.

[0065] The control unit 211 may control the first lighting device 291 and the second lighting device 292 so that shadows of other objects are not cast on the first and second objects. The other objects may be objects whose biometric information has already been acquired. The control unit 211 may control the first lighting device 291 and the second lighting device 292 based on the position and moving speed of the other objects. For example, the control unit 211 may change the direction of light emitted by the first lighting device 291 and the second lighting device 292 based on the position and moving speed of the other objects. Furthermore, although the first camera 281 and the first lighting device 291 are adjacent to each other and the second camera 282 and the second lighting device 292 are adjacent to each other in FIG. 4, the first lighting device 291 may be located away from the first camera 281 and the second lighting device 292 may be located away from the second camera 282 to prevent shadows of other objects moving in front of the objects from being cast.

[0066] The first camera 281 may capture an image of the iris of the first target T1 illuminated with light by the first lighting device 291 and the second lighting device 292, and acquire an iris image 1 including the iris of the first target T1. The second camera 282 may capture an image of the iris of the second target T2 illuminated with light by the first lighting device 291 and the second lighting device 292, and acquire an iris image 2 including the iris of the second target T2. If the iris image contains an image area that does not meet a predetermined brightness, the iris camera may brighten the image area that does not meet the predetermined brightness by image processing. The authentication unit 217 acquires the iris image 1 from the first camera 281 and the iris image 2 from the second camera 282 as biometric information (step S25). The authentication unit 217 performs authentication using the iris image 1 and authentication using the iris image 2 (step S26).

[0067] The authentication unit 217 authenticates the target by comparing an iris image, which is biometric information of the target, with registered registration information. The authentication unit 217 may calculate a matching score by comparing the iris image with a pre-registered iris image. The matching score may mean a value indicating the degree of match between the acquired iris image and the pre-registered iris image. The matching score may mean a value indicating the degree of match between a feature extracted from the iris image and a pre-registered feature. Therefore, the authentication unit 217 may calculate the matching score by comparing the feature extracted from the iris image with a pre-registered feature.

[0068] The authentication unit 217 determines whether the iris authentication has been successful. In the iris authentication, if the matching score is equal to or greater than a predetermined threshold, it is determined that the subject is a person who has been registered in advance. The authentication unit 217 may determine that the iris authentication has been successful if the matching score exceeds the predetermined threshold. In this case, the authentication unit 217 may determine that the iris authentication has failed if the matching score is smaller than the predetermined threshold. Note that if the matching score is equal to the predetermined threshold, it may be determined that the biometric authentication has been successful, or may be determined that the biometric authentication has failed.

[0069] In addition to iris authentication, the authentication unit 217 may also perform authentication using a facial image (face authentication). The authentication unit 217 may perform face authentication by comparing a facial image of a target included in an image captured by the face camera FC with a facial image of a target registered in advance. In other words, the authentication unit 217 may perform multimodal authentication.

[0070] The authentication result notifying unit 218 notifies the first target T1 and the second target T2 of the authentication result (step S27). The authentication result notifying unit 218 may notify the target that has arrived at the end point E of the lane L of the authentication result.

[0071] A display device may be provided at the end point E of the lane L. In this case, the authentication result notifying unit 218 may notify the target of the success or failure of the authentication of the target by displaying information indicating the success or failure of the authentication of the target on the display device.

[0072] The authentication result notification unit 218 may display on the display device an action to be taken by the subject depending on whether the authentication was successful or not. For example, the action to be taken by a subject who is successfully authenticated may be to enter the restricted area. For example, the action to be taken by a subject who is unsuccessful in authentication may be to repeat the movement within lane L. For example, the action to be taken by a subject who is unsuccessful in authentication may be to undergo an examination by an examiner who examines whether or not the subject is allowed to enter the restricted area.

[0073] For example, a gate may be provided at the end point E of the lane L. For example, an openable / closable flap may be provided at the end point E of the lane L. If the authentication of the target is successful, the authentication result notifying unit 218 may notify the target that the authentication of the target has been successful by opening the closed gate. Furthermore, if the authentication of the target has failed, the authentication result notifying unit 218 may notify the target that the authentication of the target has failed by closing the open gate. Furthermore, for example, the authentication result notifying unit 218 may notify the target of the success or failure of the authentication of the target by illuminating the area around the target's feet with different colors depending on the success or failure of the authentication.

[0074] A security guard may be stationed at the end point E of the lane L. The security guard may call out to a subject who does not perform an action according to the authentication result notified by the authentication result notifying unit 218. [Technical effect of information processing device 2]

[0075] The information processing device 2 according to this disclosure irradiates a target with light from different directions, thereby preventing shadows from appearing on the target. Furthermore, the information processing device 2 changes the amount of light depending on the target's position, thereby enabling it to acquire iris images of similar brightness regardless of the target's location. Therefore, the information processing device 2 can perform biometric authentication using iris images suitable for iris authentication. [3: Third embodiment]

[0076] A third embodiment of an information processing device, an information processing system, an information processing method, and a program will be described with reference to Figures 9 to 14. Hereinafter, the third embodiment of an information processing device, an information processing system, an information processing method, and a program will be described using an information processing system Sa including an information processing device 3 according to this disclosure. Note that, for the third embodiment, descriptions that overlap with the descriptions of the first and second embodiments will be omitted as appropriate. Also, in the drawings, parts common to the second embodiment are indicated by the same reference numerals. [3-1: Configuration of Information Processing System Sa]

[0077] 9, the information processing system Sa includes an information processing device 3, a camera 27, a first camera 281, a second camera 282, a first lighting device 391, and a second lighting device 392. The information processing device 3 may communicate with the camera 27, the first camera 281, the second camera 282, the first lighting device 391, and the second lighting device 392 via the communication device 23.

[0078] Each of the first lighting device 391 and the second lighting device 392 includes a plurality of lighting elements E arranged side by side. A "lighting element" may be a "unit" of lighting that can be controlled independently. For example, a "lighting element" may include one lighting light source. A "lighting element" may include a predetermined number of lighting light sources. A lighting light source may be, for example, a light bulb. What is referred to as a "lighting element" may be determined arbitrarily depending on the requirements for applying the lighting operation.

[0079] Each of the plurality of lighting elements E may be capable of irradiating light at a different position. Each of the plurality of lighting elements E may be arranged to irradiate light at a different position. Each of the plurality of lighting elements E may be arranged to irradiate a different position in the width direction of the lane L. Note that when the first lighting device 391 and the second lighting device 392 are described without distinction, they may be referred to as lighting devices 39.

[0080] As shown in FIG. 10, the arithmetic device 21 provided in the information processing device 3 may have, as logically realized functional blocks or as physically realized processing circuits, a control unit 311, a biometric information acquisition unit 212, an image acquisition unit 213, a tracking unit 214, a determination unit 215, a position estimation unit 316, an authentication unit 217, and an authentication result notification unit 218. [3-2: Information processing method executed by information processing device 3]

[0081] The control unit 311 may control the emission of light by each of the multiple lighting elements E depending on the position of the target in the alignment direction. The control unit 311 may control the lighting elements E to emit light differently depending on the position of the target in the alignment direction. An target moving on one side of the center of the lane L is located on one side of the alignment direction in the predetermined area PA. An target moving on the other side of the center of the lane L is located on the other side of the alignment direction in the predetermined area PA. In other words, the control unit 311 controls the lighting elements E to emit light differently when the target is moving on one end side of the center of the lane L and when the target is moving on the other end side of the center of the lane L.

[0082] For example, the predetermined area PA may include multiple areas positioned at different positions in the arrangement direction. As shown in FIG. 11, the predetermined area PA may include five areas, for example, predetermined area PA1, predetermined area PA2, predetermined area PA3, predetermined area PA4, and predetermined area PA5. In this case, the lighting element E1 may be able to irradiate the predetermined area PA1 with light L1. The lighting element E2 may be able to irradiate the predetermined area PA2 with light L2. The lighting element E3 may be able to irradiate the predetermined area PA3 with light L3. The lighting element E4 may be able to irradiate the predetermined area PA4 with light L4. The lighting element E5 may be able to irradiate the predetermined area PA5 with light L5.

[0083] The position estimation unit 316 may estimate whether the position of the target is included in a predetermined area PA1, a predetermined area PA2, a predetermined area PA3, a predetermined area PA4, or a predetermined area PA5. If the position of the target is estimated to be included in the predetermined area PA1, the control unit 311 may control the illumination element E1 to emit light L1. If the position of the target is estimated to be included in the predetermined area PA2, the control unit 311 may control the illumination element E2 to emit light L2. If the position of the target is estimated to be included in the predetermined area PA3, the control unit 311 may control the illumination element E3 to emit light L3. If the position of the target is estimated to be included in the predetermined area PA4, the control unit 311 may control the illumination element E4 to emit light L4. If the position of the target is estimated to be included in the predetermined area PA5, the control unit 311 may control the illumination element E5 to emit light L5.

[0084] 12 illustrates a case where the position of the target is estimated to be included in the predetermined area PA4, and the illumination element E4 emits light L4. As illustrated in FIG. 12, each of the first illumination device 391 and the second illumination device 392 may emit light according to its position in the arrangement direction.

[0085] The control unit 311 may control the lighting elements so that adjacent lighting elements emit light. As shown in Fig. 13, the predetermined area PA may include, for example, four areas: predetermined area PA1, predetermined area PA2, predetermined area PA3, and predetermined area PA4. In this case, the position estimation unit 316 may estimate in which of the predetermined area PA1, predetermined area PA2, predetermined area PA3, and predetermined area PA4 the position of the target is included.

[0086] FIG. 13(a) illustrates a case where a predetermined area PA4 is illuminated by light from the illumination element E4 and the illumination element E5. When it is estimated that the position of the target is included in the predetermined area PA4, the control unit 311 may control the illumination element E4 and the illumination element E5 to emit light. FIG. 13(b) illustrates a case where a predetermined area PA3 is illuminated by light from the illumination element E3 and the illumination element E4. When it is estimated that the position of the target is included in the predetermined area PA3, the control unit 311 may control the illumination element E3 and the illumination element E4 to emit light. FIG. 13(c) illustrates a case where a predetermined area PA2 is illuminated by light from the illumination element E2 and the illumination element E3. When it is estimated that the position of the target is included in the predetermined area PA2, the control unit 311 may control the illumination element E2 and the illumination element E3 to emit light. FIG. 13(d) illustrates a case where a predetermined area PA1 is illuminated by light from the illumination element E1 and the illumination element E2. When it is estimated that the position of the target is included in the predetermined area PA1, the control unit 311 may perform control so that the lighting element E1 and the lighting element E2 emit light.

[0087] The light intensity of each of the multiple lighting elements E may be different. For example, the control unit 311 may control the lighting elements so that the lighting element E1 included in the second lighting device 392 emits more light than the lighting element E1 included in the first lighting device 391. The control unit 311 may also control the lighting elements so that the lighting element E2 included in the second lighting device 392 emits more light than the lighting element E2 included in the first lighting device 391. The control unit 311 may also control the lighting elements so that the lighting element E4 included in the first lighting device 391 emits more light than the lighting element E4 included in the second lighting device 392. The control unit 311 may also control the lighting elements so that the lighting element E5 included in the first lighting device 391 emits more light than the lighting element E5 included in the second lighting device 392. Furthermore, the control unit 311 may perform control so that the light emitted by the illumination element E3 included in the first illumination device 391 and the light emitted by the illumination element E3 included in the second illumination device 392 are the same.

[0088] When multiple objects are moving side by side and are located in a predetermined area PA, for example, when a first object is located at a first position and a second object is located at a second position, the control unit 311 may cause all of the multiple lighting elements E to emit light. In this case, each lighting element E may emit the same amount of light. Alternatively, each lighting element E may emit a different amount of light depending on the deviation of the object positions.

[0089] Furthermore, the control unit 311 may select the lighting elements E so that shadows of other objects are not cast on the first and second objects. For example, the control unit 311 may change the elements selected in the first lighting device 391 and the second lighting device 392 based on the positions and movement speeds of the other objects. Furthermore, the control unit 311 may identify the eye positions of the object located in the predetermined area PA, and select the lighting elements E that emit light according to the identified eye positions. [3-3: Modification 1 of the lighting device 39]

[0090] Each of the multiple lighting elements E may be able to emit light in different directions. Each of the multiple lighting elements E may be arranged to emit light in different directions. FIG. 14 is a cross-sectional view of a modified example of the lighting device 39 as viewed from above. As illustrated in FIG. 14, each of the multiple lighting elements E does not have to be arranged in a straight line so as to emit light in different directions. By each of the multiple lighting elements E emitting light in different directions, the areas illuminated by each of the multiple lighting elements E can be made more different.

[0091] When the plurality of lighting elements E are arranged as illustrated in FIG. 14(a), each of the plurality of lighting elements E may irradiate light onto a predetermined area PA, for example, as in the case illustrated in FIG. 11. On the other hand, when the plurality of lighting elements E are arranged as illustrated in FIG. 14(b), for example, the lighting element E1 may irradiate light onto a predetermined area PA5 illustrated in FIG. 11. Furthermore, the lighting element E2 may irradiate light onto a predetermined area PA4 illustrated in FIG. 11. Furthermore, the lighting element E4 may irradiate light onto a predetermined area PA2 illustrated in FIG. 11. Furthermore, the lighting element E5 may irradiate light onto a predetermined area PA1 illustrated in FIG. 11. The lighting element E3 may irradiate light onto a predetermined area PA3 illustrated in FIG. 11. [3-4: Modification 2 of the lighting device 39]

[0092] Each of the plurality of lighting elements may be arranged at a different position in a direction different from the horizontal direction (for example, a height direction (vertical direction)) in addition to a different position in the horizontal direction. Although FIGS. 9 and 11 to 14 illustrate the case where the lighting device 39 includes lighting elements E arranged in the horizontal direction, the lighting device 39 may also include lighting elements E arranged in the height direction. In this case, the control unit 311 may identify the position in the height direction of the eye of the target located in the predetermined area PA in addition to the position in the line-up direction. The control unit 311 may select a lighting element to emit light according to the identified eye position (position in the line-up direction and position in the height direction). [3-5: Technical Effects of Information Processing Device 3]

[0093] The information processing device 3 according to this disclosure controls the lighting of each of the plurality of lighting elements E, thereby enabling appropriate lighting according to the position of the target. [4: Fourth embodiment]

[0094] A fourth embodiment of an information processing device, an information processing system, an information processing method, and a program will be described with reference to FIGS. 15 to 17. Hereinafter, the fourth embodiment of an information processing device, an information processing system, an information processing method, and a program will be described using an information processing system Sb including an information processing device 4 according to this disclosure. Note that, for the fourth embodiment, descriptions that overlap with the descriptions of the first to third embodiments will be omitted as appropriate. Furthermore, in the drawings, parts common to the second and third embodiments are denoted by the same reference numerals. [4-1: Configuration of information processing system Sb]

[0095] The information processing system Sb has at least two lighting devices at one end in the arrangement direction and at least two lighting devices at the other end in the arrangement direction. As shown in Fig. 15, two lighting devices 4911, 4912 may be provided at one end in the width direction of the lane L. Furthermore, two lighting devices 4921, 4922 may be provided at the other end in the width direction of the lane L. The lighting devices 4911, 4921 provided in front in the movement direction are referred to as front lighting devices 49-1, and the lighting devices 4912, 4922 provided in rear in the movement direction are referred to as rear lighting devices 49-2. The information processing system Sb includes an information processing device 4, a camera 27, a first camera 281, a second camera 282, and multiple lighting devices 4911, 4912, 4921, 4922.

[0096] The information processing device 4 may communicate with the camera 27, the first camera 281, the second camera 282, and the plurality of lighting devices 4911, 4912, 4921, and 4922 via the communication device 23. As shown in Fig. 16, the arithmetic device 21 included in the information processing device 4 may have, as logically realized functional blocks or as physically realized processing circuits, a control unit 411, a biometric information acquisition unit 212, an image acquisition unit 213, a tracking unit 214, a determination unit 215, a position estimation unit 216, an authentication unit 217, and an authentication result notification unit 218. [4-2: Information processing method executed by information processing device 4]

[0097] The control unit 411 may control the front lighting device 49-1 and the rear lighting device 49-2, which are provided on the same side as the iris camera 28 that captures the target, to emit light toward one of the target's left or right eye, and the other of the front lighting device 49-1 and the rear lighting device 49-2, which are provided on the same side as the iris camera 28 that captures the target, to emit light toward the other of the target's left or right eye. As illustrated in FIG. 17(a), the front lighting device 49-1, which is provided on the same side as the iris camera 28 that captures the target, may emit light toward the target's right eye, and the rear lighting device 49-2, which is provided on the same side as the iris camera 28 that captures the target, may emit light toward the target's left eye. Alternatively, as illustrated in FIG. 17(b), the front lighting device 49-1, which is provided on the same side as the iris camera 28 that captures the target, may emit light toward the target's left eye, and the rear lighting device 49-2, which is provided on the same side as the iris camera 28 that captures the target, may emit light toward the target's right eye.

[0098] Alternatively, the control unit 411 may control one of the front illumination device 49-1 and the rear illumination device 49-2 provided on the same side as the iris camera 28 that captures the target to illuminate one of the target's left or right eye, and one of the front illumination device 49-1 and the rear illumination device 49-2 provided on a different side from the iris camera 28 that captures the target to illuminate the other of the target's left or right eye. As illustrated in FIG. 17(c), the front illumination device 4921 provided on the same side as the second camera 282 that captures the target may illuminate the target's left eye, and the rear illumination device 4912 provided on a different side from the second camera 282 that captures the target may illuminate the target's right eye. Although not shown, the light may be illuminated on the target by a combination of the illumination device 4911 illuminating light from one side of the target and the illumination device 4921 illuminating light from the other side of the target. Alternatively, the object may be irradiated with light by a combination of lighting device 4911 irradiating light from one side of the object and lighting device 4922 irradiating light from the other side of the object. Alternatively, the object may be irradiated with light by a combination of lighting device 4912 irradiating light from one side of the object and lighting device 4922 irradiating light from the other side of the object.

[0099] At least one of the lighting devices 4911, 4912, 4921, and 4922 may include a plurality of lighting elements E arranged side by side, similar to the lighting device 39 in the third embodiment. In this case, the control unit 411 may control the emission of light by each of the lighting elements E according to the position of the target in the arrangement direction. [4-3: Technical Effects of Information Processing Device 4]

[0100] The information processing device 4 according to this disclosure can appropriately illuminate the target because multiple lighting devices installed relatively close to the target each illuminate the target from a different direction. When the information processing device 4 performs biometric authentication, it can perform the biometric authentication using biometric information acquired from the appropriately illuminated target. [5: Fifth embodiment]

[0101] A fifth embodiment relating to an information processing device, an information processing system, an information processing method, and a program will be described. The information processing system according to the fifth embodiment performs the above-described information processing method. The information processing system according to the fifth embodiment may include one or more information processing devices (not shown). In other embodiments, one information processing device performs the above-described information processing method, but in the fifth embodiment, one or more information processing devices may perform the above-described information processing method. That is, each of the multiple steps included in the above-described information processing method may be performed by a different information processing device. For example, some of the multiple steps included in the above-described information processing method may be performed by a first information processing device, and the remaining steps of the multiple steps included in the above-described information processing method may be performed by a second information processing device. [6: Note]

[0102] The above-described embodiment may be further described as follows, but is not limited to the following. [Appendix 1] a control means for controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; an acquisition means for acquiring at least one of biometric information of the first subject irradiated with light by the lighting device and biometric information of the second subject irradiated with light by the lighting device; An information processing device comprising: [Appendix 2] A first position of the first target when the first target is located in the predetermined area, and a second position of the second target when the second target is located in the predetermined area are different positions in an arrangement direction different from a movement direction of the first target and the second target. 10. The information processing device according to claim 1. [Appendix 3] The lighting device includes: The first object and the second object are provided at one end and the other end in the arrangement direction in a movement region in which the first object and the second object move. 3. The information processing device according to claim 2. [Appendix 4] The control means When the object is moving on one side of the center of the movement area in a direction different from the movement direction, the amount of light irradiated by the lighting device provided at the other end of the movement area is greater than the amount of light irradiated by the lighting device provided at the other end of the movement area, When the object is moving on the other side of the center of the moving area in a direction different from the moving direction, the light emitted by the lighting device provided at one end of the moving area is controlled to be greater than the light emitted by the lighting device provided at the other end of the moving area. 4. The information processing device according to claim 3. [Appendix 5] The lighting device includes a plurality of lighting elements arranged side by side; The control means controls the emission of light by each of the plurality of lighting elements in accordance with the position of the target in the arrangement direction. 3. The information processing device according to claim 2. [Appendix 6] The control means When the first object is located at the first position and the second object is located at the second position, all of the plurality of lighting elements are caused to emit light. 6. The information processing device according to claim 5. [Appendix 7] At least two lighting devices on one side are provided at an end on one side in the arrangement direction, the control means controls the first lighting device of the at least two lighting devices on one side to irradiate light onto a right eye of the subject, and the second lighting device of the at least two lighting devices on one side to irradiate light onto a left eye of the subject, when the subject is located on one side of a center in the arrangement direction; at least two other-side lighting devices at the other end in the arrangement direction; When the subject is positioned on the other side of the center in the arrangement direction, the control means controls the first lighting device of the at least two lighting devices on the other side to irradiate light onto the right eye of the subject, and the second lighting device of the at least two lighting devices on the other side to irradiate light onto the left eye of the subject. 10. The information processing system of claim 2. [Appendix 8] a control means for controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; an acquisition means for acquiring at least one of biometric information of the first subject irradiated with light by the lighting device and biometric information of the second subject irradiated with light by the lighting device; An information processing system comprising: [Appendix 9] A computer-implemented information processing method comprising: controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; At least one of biometric information of the first subject irradiated with light by the illumination device and biometric information of the second subject irradiated with light by the illumination device is acquired. Information processing methods. [Appendix 10] controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; At least one of biometric information of the first subject irradiated with light by the illumination device and biometric information of the second subject irradiated with light by the illumination device is acquired. A program that causes a computer to execute an information processing method.

[0103] This disclosure may be modified as appropriate within the scope that does not contradict the gist or idea of ​​the invention that can be read from the claims and the entire specification, and information processing devices, information processing systems, information processing methods, and programs that involve such modifications are also included in the technical idea of ​​this disclosure. [Explanation of symbols]

[0104] 1,2,3,4 Information processing equipment 11,211,311,411 Control section 12 Acquisition Department 212 Biometric information acquisition unit 213 Image Acquisition Unit 214 Tracking Department 215 Decision Section 216,316 Position estimation part 217 Authentication Department 218 Authentication result notification unit 27 Camera 281 Camera 1 282 Second Camera 291,391 First lighting device 292,392 Second lighting device 49-1 Front lighting device 49-2 Rear lighting device

Claims

1. a control means for controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; an acquisition means for acquiring at least one of biometric information of the first subject irradiated with light by the lighting device and biometric information of the second subject irradiated with light by the lighting device; An information processing device comprising:

2. A first position of the first target when the first target is located in the predetermined area, and a second position of the second target when the second target is located in the predetermined area are different positions in an arrangement direction different from a movement direction of the first target and the second target. The information processing device according to claim 1 .

3. The lighting device includes: The first object and the second object are provided at one end and the other end in the arrangement direction in a movement region in which the first object and the second object move. The information processing device according to claim 2 .

4. The control means When the object is moving on one side of the center of the movement area in a direction different from the movement direction, the amount of light irradiated by the lighting device provided at the other end of the movement area is greater than the amount of light irradiated by the lighting device provided at the other end of the movement area, When the object is moving on the other side of the center of the moving area in a direction different from the moving direction, the light emitted by the lighting device provided at one end of the moving area is controlled to be greater than the light emitted by the lighting device provided at the other end of the moving area. The information processing device according to claim 3 .

5. The lighting device includes a plurality of lighting elements arranged side by side; The control means controls the emission of light by each of the plurality of lighting elements in accordance with the position of the target in the arrangement direction. The information processing device according to claim 2 .

6. The control means When the first object is located at the first position and the second object is located at the second position, all of the plurality of lighting elements are caused to emit light. The information processing device according to claim 5 .

7. At least two lighting devices on one side are provided at an end on one side in the arrangement direction, the control means controls the first lighting device of the at least two lighting devices on one side to irradiate light onto a right eye of the subject, and the second lighting device of the at least two lighting devices on one side to irradiate light onto a left eye of the subject, when the subject is located on one side of the center in the arrangement direction; at least two other-side lighting devices at the other end in the arrangement direction; When the subject is positioned on the other side of the center in the arrangement direction, the control means controls the first lighting device of the at least two lighting devices on the other side to irradiate light onto the right eye of the subject, and the second lighting device of the at least two lighting devices on the other side to irradiate light onto the left eye of the subject. The information processing system according to claim 2 .

8. a control means for controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; an acquisition means for acquiring at least one of biometric information of the first subject irradiated with light by the lighting device and biometric information of the second subject irradiated with light by the lighting device; An information processing system comprising:

9. A computer-implemented information processing method comprising: controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; At least one of biometric information of the first subject irradiated with light by the lighting device and biometric information of the second subject irradiated with light by the lighting device is acquired. Information processing methods.

10. controlling the lighting device to irradiate light in at least one of a first mode in which light is irradiated onto at least a first moving object when the first moving object is located in a predetermined area, and a second mode in which light is irradiated onto at least a second moving object when the second moving object is located in the predetermined area; At least one of biometric information of the first subject irradiated with light by the lighting device and biometric information of the second subject irradiated with light by the lighting device is acquired. A program that causes a computer to execute an information processing method.

Images