Information Processing Apparatus, Information Processing Method, and Computer Program

Abstract

An information processing device A1 comprises: a resolution; a rear surface camera RC that images an imaging subject who is on a different side from the side facing the resolution; and an assistance unit 11 that, when the rear surface camera RC images an image including an iris of the imaging subject due to an imaging command from the imaging subject, outputs assitive information which assists this imaging.

Description

Information processing device, information processing method, and recording medium

[0001] The present disclosure relates to the technical fields of an information processing device, an information processing method, and a recording medium.

[0002] Patent Literature 1 describes a technology that outputs guidance information to guide a subject to move their head while gazing at a predetermined position, and acquires an image including the subject's iris after the guidance information is output. Patent Literature 2 describes a technology that, when iris recognition is selected, activates an iris-capturing camera to capture an iris image based on the brightness of the lighting. Patent Literature 3 describes a visual distance estimating unit that calculates a first value indicating the number of pixels of the size of the iris detected by the iris detection processing unit, and acquires the resolution of the color image. Patent Literature 4 describes a mobile device that may include, for example, a mobile phone such as a smartphone or a tablet, and may include a sensor for determining characteristics of the mobile device's current environment, the sensor may include a front or rear camera having a movable or fixed lens, a flash, an image sensor, and an image processor, and the camera may be a megapixel camera capable of capturing details for face and / or iris recognition. Patent Literature 5 describes a backlight that displays a frame of the range in which both eyes should be reflected on the mirror surface of a magic mirror panel. Patent Literature 6 describes guiding a user by displaying on a display or by audio, or controlling an external device, in order to obtain a good iris image. Patent Literature 7 describes acquiring an eye image from a person image of a person confirmed to be in an iris photography space, measuring the quality of the acquired eye image, and obtaining an iris recognition image that meets a standard quality level. Patent Literature 8 describes determining a formula for calculating a typical iris size from the size of a face region in advance, using the formula to determine the typical iris size from the size of the face region, moving a round pattern of a typical iris size within the range where the eyes are located within the face region to perform matching, and detecting the part with the highest similarity to the pattern that is equal to or exceeds a predetermined threshold as the iris. Patent Literature 9 describes displaying a first index, which is a vertical line for aligning the position of the nose bridge, and a second index, which is a horizontal line for aligning the position of the eyes, at fixed positions equivalent to the position of the user's mirror image in human visual perception.Patent Document 10 describes a technology in which an image of a subject's eyes captured by a capture unit of a photographing device is evaluated, the photographing device determines whether the subject is within a focus range, and based on the result, a display unit displays differently when the subject is within the focus range and when it is not, guiding the subject in both the distance direction and the up, down, left, and right directions from the device. Patent Document 11 describes a technology in which various displays are displayed on the liquid crystal display unit of a guidance display unit based on the results of distance measurement and environment determination.

[0003] International Publication No. 2021 / 245823 Patent Publication No. 2022-510462 Patent Publication No. 2022-99129 Patent Publication No. 2021-507557 Patent Publication No. 2018-151838 Patent Publication No. 2018-124733 Patent Publication No. 2017-503276 Patent Publication No. 2014-67090 Patent Publication No. 2013-145323 Patent Publication No. 2007-236668 Patent Publication No. 2007-209646

[0004] An object of this disclosure is to provide an information processing device, an information processing method, and a recording medium that aim to improve upon the techniques described in prior art documents.

[0005] One aspect of the information processing device includes a display, an imaging means for imaging an imaging target that is on a side different from the side facing the display, and an auxiliary means for outputting auxiliary information to assist in imaging when the imaging means captures an image including the iris of the imaging target in response to an imaging instruction from the imaging target.

[0006] One aspect of the information processing method is to output auxiliary information to assist in imaging when an imaging means that captures an image of an imaging target in response to an imaging instruction from the imaging target located on a side different from the side facing the display captures an image including the iris of the imaging target.

[0007] One aspect of the recording medium has recorded thereon a computer program for causing a computer to execute an information processing method in which, when an imaging means that captures an image of an object to be imaged in response to an imaging instruction from the object to be imaged that is on a side different from the side facing the display captures an image that includes the iris of the object to be imaged, auxiliary information that assists in image capture is output.

[0008] FIG. 1 is a block diagram showing the configuration of an information processing device in a first embodiment. FIG. 2 is a diagram showing the appearance of an information processing device in a second embodiment. FIG. 3 is a block diagram showing the configuration of an information processing device in the second embodiment. FIG. 4 is a flowchart showing the flow of information processing operations of the information processing device in the second embodiment. FIG. 5 is a block diagram showing the configuration of an information processing device in a third embodiment. FIG. 6 is a block diagram showing the configuration of an information processing device in a fourth embodiment. FIG. 7 is a block diagram showing the configuration of an information processing device in a fifth embodiment. FIG. 8 is a block diagram showing the configuration of an information processing device in a sixth embodiment. FIG. 9 is a block diagram showing the configuration of an information processing device in a seventh embodiment. FIG. 10 is a block diagram showing the configuration of an information processing device in an eighth embodiment. FIG. 11 is a flowchart showing the flow of information processing operations of the information processing device in the eighth embodiment. FIG. 12 is a block diagram showing the configuration of an information processing device in a ninth embodiment. FIG. 13 is a block diagram showing the configuration of an information processing device in a tenth embodiment. FIG. 14 is a flowchart showing the flow of information processing operations of the information processing device in the tenth embodiment. FIG. 15 is a block diagram showing the configuration of an information processing device in an eleventh embodiment. FIG. 16 is a flowchart showing the flow of information processing operations of the information processing device in the eleventh embodiment. Fig. 17 is a block diagram showing the configuration of an information processing device in the twelfth embodiment, and Fig. 18 is a flowchart showing the flow of information processing operations of the information processing device in the twelfth embodiment.

[0009] Hereinafter, embodiments of an information processing device, an information processing method, and a recording medium will be described with reference to the drawings. [1: First Embodiment]

[0010] A first embodiment of an information processing device, an information processing method, and a recording medium will be described below. Hereinafter, the first embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing device A1 to which the first embodiment of the information processing device, the information processing method, and the recording medium is applied. [1-1: Configuration of Information Processing Device A1]

[0011] 1 is a block diagram showing the configuration of an information processing device A1 in the first embodiment. As shown in FIG. 1, the information processing device A1 includes a display D, an imaging unit RC, and an auxiliary unit 11.

[0012] The rear camera RC captures an image of an object on a side different from the side facing the display D. The imaging unit RC may be mounted on the side of the information processing device A1 on which the display D is not mounted. If the display D is mounted on the front side of the information processing device A1, the imaging unit RC may be mounted on the rear side of the information processing device A1. The auxiliary unit 11 outputs auxiliary information to assist in imaging when the imaging unit RC captures an image including the iris of the object in response to an imaging instruction from the object. [1-2: Technical Effects of the Information Processing Device A1]

[0013] The information processing device A1 in the first embodiment outputs auxiliary information that assists in capturing an image when the rear camera RC captures an image including the iris of the subject in response to an image capture instruction from the subject, so that the subject can capture an image that appropriately includes the iris of the subject without having to check the display D. [2: Second Embodiment]

[0014] Next, a second embodiment of the information processing device, the information processing method, and the recording medium will be described. Hereinafter, the second embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing device A2 to which the second embodiment of the information processing device, the information processing method, and the recording medium is applied.

[0015] In the second embodiment, the information processing device A2 may be a mobile terminal such as a smartphone, a tablet terminal, or a notebook PC (personal computer). FIG. 2 is an external view illustrating an example of the appearance of the information processing device A2 in the second embodiment. The information processing device A2 has a side on which a display D is mounted, as illustrated in FIG. 2( a), and a side on which the display D is not mounted, as illustrated in FIG. 2( b). As illustrated in FIG. 2( b), a rear camera RC is mounted on the side of the information processing device A2 on which the display D is not mounted. If the display D is mounted on the front side of the information processing device A2, the rear camera RC may be mounted on the rear side of the information processing device A2. The rear camera RC captures an image of an object located on a side different from the side facing the display D. The information processing device A2 may be equipped with a front camera FC on the front side on which the display D is mounted. The rear camera RC may be capable of capturing images with higher resolution and quality than the front camera FC.

[0016] [2-1: Configuration of information processing device A2]

[0017] 3 is a block diagram showing the configuration of an information processing device A2 in the second embodiment. As shown in FIG. 3, the information processing device A2 includes a calculation device 21 and a storage device 22. The information processing device A2 may further include a communication device 23, an input device 24, and an output device 25. However, the information processing device A2 does not necessarily have to include at least one of the communication device 23, the input device 24, and the output device 25. The calculation device 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.

[0018] The arithmetic device 21 includes, for example, at least one of a central processing unit (CPU), a graphics processing unit (GPU), and a field programmable gate array (FPGA). The arithmetic device 21 reads a computer program. For example, the arithmetic device 21 may read a computer program stored in the storage device 22. For example, the arithmetic device 21 may read a computer program stored in a computer-readable, non-transitory recording medium using a recording medium reading device (e.g., an input device 24, described later) not shown in the drawings provided in the information processing device A2. The arithmetic device 21 may acquire (i.e., download or read) the computer program from a device (not shown) located outside the information processing device A2 via the communication device 23 (or another communication device). The arithmetic device 21 executes the read computer program. As a result, logical functional blocks for executing the operations to be performed by the information processing device A2 are realized within the arithmetic device 21. In other words, the arithmetic device 21 can function as a controller for realizing logical functional blocks for executing the operations (in other words, processing) to be performed by the information processing device A2.

[0019] FIG. 3 shows an example of logical functional blocks implemented within the arithmetic device 21 to execute information processing operations. As shown in FIG. 3, the arithmetic device 21 implements an auxiliary control unit 211, which is a specific example of the "auxiliary means" described in the appendix below, an imaging control unit 212, and an authentication unit 213. However, either the imaging control unit 212 or the authentication unit 213 may not be implemented within the arithmetic device 21. The auxiliary control unit 211 may include a guidance unit 211A, which is a specific example of the "guiding means" described in the appendix below, and an image evaluation unit 211B. However, the auxiliary control unit 211 may not include either the guidance unit 211A or the image evaluation unit 211B. Details of the operations of the auxiliary control unit 211, the imaging control unit 212, and the authentication unit 213 will be described later with reference to FIG. 4.

[0020] The storage device 22 can store desired data. For example, the storage device 22 may temporarily store a computer program executed by the arithmetic device 21. The storage device 22 may temporarily store data that the arithmetic device 21 temporarily uses when the arithmetic device 21 is executing a computer program. The storage device 22 may also store data that the information processing device A2 stores long-term. The storage device 22 may include 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 a disk array device. In other words, the storage device 22 may include a non-temporary recording medium.

[0021] The communication device 23 is capable of communicating with devices external to the information processing device 2 via a communication network (not shown). The communication device 23 may be a communication interface based on standards such as Ethernet (registered trademark), Wi-Fi (registered trademark), Bluetooth (registered trademark), or USB (Universal Serial Bus).

[0022] The input device 24 is a device that accepts information input to the information processing device A2 from outside the information processing device A2. For example, the input device 24 may include an operation device (e.g., at least one of a keyboard, a mouse, and a touch panel) that can be operated by an operator of the information processing device A2. For example, the input device 24 may include a reading device that can read information recorded as data on a recording medium that can be externally attached to the information processing device A2.

[0023] The output device 25 is a device that outputs information to the outside of the information processing device A2. For example, the output device 25 may output information as an image. That is, the output device 25 may include a display device (a so-called display) that can display an image showing the information to be output. That is, in the second embodiment, the information processing device A2 includes a display D as the output device 25. For example, the output device 25 may output information as sound. That is, the output device 25 may include an audio device (a so-called speaker) that can output sound. For example, the output device 25 may output information on paper. That is, the output device 25 may include a printing device (a so-called printer) that can print desired information on paper. [2-2: Information Processing Operation Performed by the Information Processing Device A2]

[0024] The information processing operation performed by the information processing device A2 in the second embodiment will be described with reference to Fig. 4. Fig. 4 is a flowchart showing the flow of the information processing operation performed by the information processing device A2 in the second embodiment.

[0025] 4, the rear camera RC captures an image of the target (step S20). The rear camera RC is controlled by the imaging control unit 212 in response to an imaging instruction from the target, and captures an image of the target. The rear camera RC captures an image of the target that is on the side opposite to the display D.

[0026] The image evaluation unit 211B evaluates the image (step S21). The evaluation of the image by the image evaluation unit 211B may include evaluation of the imaging range of the image, evaluation of the resolution of the iris included in the image, evaluation of the brightness of the image, and evaluation of the reflection included in the image. The evaluation of the image by the image evaluation unit 211B will be described in other embodiments below.

[0027] The image evaluation unit 211B determines whether the value related to the evaluation of the imaging range, the value related to the evaluation of the resolution, the value related to the evaluation of the brightness, and the value related to the evaluation of the reflection are each less than the corresponding threshold (step S22). If any of the value related to the evaluation of the imaging range, the value related to the evaluation of the resolution, the value related to the evaluation of the brightness, and the value related to the evaluation of the reflection is less than the threshold (step S22: Yes), it determines whether or not it is necessary to guide the imaging target (step S23).

[0028] If the imaging target needs to be guided (step S23: Yes), the guidance unit 211A guides the imaging target (step S24). The guidance of the imaging target by the guidance unit 211A may involve outputting auxiliary information to the imaging target to assist in imaging. The auxiliary information may include at least one of information regarding the imaging range of the image, information regarding the resolution of the iris included in the image, information regarding the brightness of the image, and information regarding reflection in the iris region included in the image. The guidance unit 211A may guide the imaging target by outputting at least one of information regarding the imaging range of the image, information regarding the resolution of the iris included in the image, information regarding the brightness of the image, and information regarding reflection in the iris region included in the image to the imaging target. The auxiliary control unit 211 may assist in improving at least one of the imaging range, resolution, brightness, and reflection.

[0029] The auxiliary information may include information regarding at least one of the movement and posture of the imaging subject. The information regarding at least one of the movement and posture of the imaging subject may include the direction in which the imaging subject should move, the orientation of the imaging subject's face, the positional relationship between the imaging subject and the information processing device A2, the distance between the imaging subject and the rear camera RC, etc. The guiding unit 211A may output information regarding at least one of the movement and posture of the imaging subject to the imaging subject to guide the imaging subject. Guidance of the imaging subject by the guiding unit 211A will be described in other embodiments below.

[0030] If there is no need to guide the imaging target (step S23: No), the auxiliary control unit 211 adjusts the imaging operation of the rear camera RC (step S25). The auxiliary control unit 211 may output auxiliary information to the imaging control unit 212 to assist in imaging in order to adjust the imaging operation of the rear camera RC. The case where there is no need to guide the imaging target may correspond to a case where the problem is solved by internal control of the information processing device A2 without operating the imaging target, such as a case where only a change of focus is necessary or a case where the problem is solved by turning on the rear light RL.

[0031] After step S24, the process may proceed to step S25. That is, when the rear camera RC captures an image including the iris of the subject in response to an image capture instruction from the subject, the auxiliary control unit 211 outputs auxiliary information that assists in capturing an image. After step S25, the process proceeds to step S20.

[0032] If the values ​​related to the evaluation of the imaging range, the evaluation of the resolution, the evaluation of the brightness, and the evaluation of the reflection are all equal to or greater than the thresholds (step S22: No), the authentication unit 213 authenticates the imaging target using information about the iris of the imaging target included in the image (step S26). [2-3: Technical Effects of the Information Processing Device A2]

[0033] In the second embodiment, when the rear camera RC captures an image in response to an image capture instruction from the image capture target, the information processing device A2 outputs auxiliary information including at least one of information regarding the image capture range, information regarding the resolution of the iris included in the image, information regarding the brightness of the image, and information regarding reflections in the iris area included in the image, thereby assisting the image capture target. The information processing device A2 can appropriately capture an image including the iris of the image capture target without the image capture target needing to check the display D. If the rear camera RC can capture images with higher resolution and quality than the front camera FC, the information processing device A2 can appropriately capture an image including the iris of the image capture target without the image capture target needing to check the display D. The information processing device A2 can capture an image with appropriate capture range, resolution, brightness, and reflections without referring to the display D. Furthermore, the information processing device A2 outputs information regarding at least one of the movement and posture of the image capture target to the image capture target, thereby enabling appropriate guidance of the image capture target. [3: Third Embodiment]

[0034] Next, a third embodiment of the information processing device, the information processing method, and the recording medium will be described. Hereinafter, the third embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S3 to which the third embodiment of the information processing device, the information processing method, and the recording medium is applied. [3-1: Configuration of the information processing system S3]

[0035] As shown in FIG. 5 , the information processing system S3 of the third embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment. Furthermore, the information processing system S3 of the third embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment. However, the information processing system S3 does not necessarily include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S3 of the third embodiment differs from the information processing device A2 of the second embodiment in that the guidance unit 311A ​​includes at least one of a sound output control unit 311A1, an instruction transmission unit 311A2, a vibration stimulation control unit 311A3, an electrical stimulation control unit 311A4, and a light control unit 311A5. Other features of the information processing system S3 may be the same as those of the information processing device A2 of the second embodiment. Therefore, in the following, only the parts that differ from the embodiments already described will be described in detail, and the description of other overlapping parts will be omitted as appropriate.

[0036] The guidance unit 311A ​​outputs auxiliary information to the imaging target using at least one of the audio output control unit 311A1, the instruction transmission unit 311A2, the vibration stimulation control unit 311A3, the electrical stimulation control unit 311A4, and the light control unit 311A5 to guide the imaging target. The guidance unit 311A ​​may output auxiliary information to the imaging target by combining two or more of the audio output control unit 311A1, the instruction transmission unit 311A2, the vibration stimulation control unit 311A3, the electrical stimulation control unit 311A4, and the light control unit 311A5 to guide the imaging target. [3-2-1: Audio Output Control Unit 311A1]

[0037] The audio output control unit 311A1 controls to output auxiliary information by audio. The audio output control unit 311A1 may also control to output auxiliary information indicating the direction in which the imaging target enters the imaging range by audio. The audio output control unit 311A1 may, for example, control earphones worn by the imaging target. The audio output control unit 311A1 may, for example, control speakers mounted on the information processing device A3. The audio output control unit 311A1 may control the earphones to use a surround function to guide the direction in which the imaging target enters the imaging range. The audio output control unit 311A1 may also control the earphones so that the volume heard from the left and right earphones becomes the same as the imaging target approaches the imaging range.

[0038] Alternatively, the audio output control unit 311A1 may control the output of audio according to the position of the imaging target. The audio output control unit 311A1 may control the output of auxiliary information indicating the direction in which the imaging target enters the imaging range by changing the audio interval, for example. For example, the audio output control unit 311A1 may control the output of audio so that the audio interval becomes narrower as the imaging target approaches the imaging range. [3-2-2: Instruction Transmission Unit 311A2]

[0039] The instruction transmission unit 311A2 may transmit an instruction to output auxiliary information as an image to a device other than the information processing system S3. For example, the instruction transmission unit 311A2 may display an image showing the auxiliary information on a smart watch worn by the imaging subject or a display device located near the imaging subject. [3-2-3: Vibration Stimulus Control Unit 311A3]

[0040] The vibration stimulus control unit 311A3 may control the application of vibration stimulus. The vibration stimulus control unit 311A3 may control the vibration function of a smartphone carried by the imaging subject, a smartwatch worn by the imaging subject, or the like. The vibration stimulus control unit 311A3 may, for example, change the vibration according to the distance between the imaging subject and a location appropriate for imaging. The vibration stimulus control unit 311A3 may, for example, change the vibration as the imaging subject approaches the appropriate location. [3-2-4: Electrical Stimulation Control Unit 311A4]

[0041] The electrical stimulation control unit 311A4 may control the application of electrical stimulation. For example, the electrical stimulation control unit 311A4 may apply electrical stimulation to the imaging subject via an attachment worn on the body of the imaging subject. For example, the electrical stimulation control unit 311A4 may change the electrical stimulation depending on the distance between the imaging subject and a location appropriate for imaging. For example, the electrical stimulation control unit 311A4 may change the electrical stimulation as the imaging subject approaches a location appropriate for imaging. [3-2-5: Light Control Unit 311A5]

[0042] The information processing system S3 may further include a rear light RL on the same side as the rear camera RC. The light control unit 311A5 may turn on the rear light RL and output auxiliary information. The light control unit 311A5 may change the illumination intensity of the rear light RL according to, for example, the distance between the imaging target and the imaging range. For example, the light control unit 311A5 may control the illumination intensity to increase as the imaging target approaches a location appropriate for imaging. [3-3: Technical Effects of the Information Processing System S3]

[0043] The information processing system S3 in the third embodiment can guide the imaging target so that the rear camera RC can appropriately capture an image of the imaging target's iris by using at least one of a function that is installed in the information processing system S3 and a function that is controllable by the information processing system S3 and can guide the imaging target. Furthermore, the information processing system S3 can guide the imaging target so that the rear camera RC can appropriately capture an image of the imaging target's iris by changing the illumination mode of the rear light RL. [4: Fourth Embodiment]

[0044] Next, a fourth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the fourth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S4 to which the fourth embodiment of the information processing device, the information processing method, and the recording medium is applied. [4-1: Configuration of Information Processing System S4]

[0045] As shown in FIG. 6 , the information processing system S4 of the fourth embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment and the information processing system S3 of the third embodiment. Furthermore, the information processing system S4 of the fourth embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment and the information processing system S3 of the third embodiment. However, the information processing system S4 does not necessarily include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S4 of the fourth embodiment differs from the information processing device A2 of the second embodiment and the information processing system S3 of the third embodiment in that the image evaluation unit 411B includes an imaging range evaluation unit 411B1. Other features of the information processing system S4 may be the same as those of the information processing device A2 of the second embodiment or the information processing system S3 of the third embodiment. Therefore, in the following, only the differences from the embodiments already described will be described in detail, and the description of other overlapping parts will be omitted as appropriate. [4-2: Information Processing Operation Performed by Information Processing System S4]

[0046] The imaging range evaluation unit 411B1 evaluates the imaging range of the image. The imaging range may be rephrased as the angle of view of the rear camera RC. The imaging range evaluation unit 411B1 determines whether the image includes the iris of the imaging target. The imaging range evaluation unit 411B1 may evaluate the imaging range of the image depending on the iris of the imaging target included in the image. The imaging range evaluation unit 411B1 may output an imaging range evaluation value of the image depending on the iris of the imaging target included in the image.

[0047] With reference to FIG. 4, the information processing operation performed by the information processing system S4 in the fourth embodiment will be described. In S22, the image evaluation unit 411B may determine whether or not the imaging range evaluation value is less than a threshold value. If the imaging range evaluation value is less than the threshold value (step S22: Yes), the image evaluation unit 411B determines whether or not it is necessary to guide the imaging target (step S23). If it is necessary to guide the imaging target (step S23: Yes), the guidance unit 411A may guide the imaging target so that the iris of the imaging target is included in the image (step S24). The guidance unit 411A may output auxiliary information to the imaging target to assist in including the iris of the imaging target in the image. [4-3: Technical Effects of the Information Processing System S4]

[0048] The information processing system S4 in the fourth embodiment determines whether the iris of the image capturing target is included in the image and guides the image capturing target to include the iris of the image capturing target, thereby making it possible to include the iris of the image capturing target. [5: Fifth Embodiment]

[0049] Next, a fifth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the fifth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S5 to which the fifth embodiment of the information processing device, the information processing method, and the recording medium is applied. [5-1: Configuration of Information Processing System S5]

[0050] As shown in FIG. 7 , the information processing system S5 of the fifth embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment to the information processing system S4 of the fourth embodiment. Furthermore, the information processing system S5 of the fifth embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment to the information processing system S4 of the fourth embodiment. However, the information processing system S5 does not necessarily include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S5 of the fifth embodiment differs from the information processing device A2 of the second embodiment to the information processing system S4 of the fourth embodiment in that the calculation device 21 further includes a selection unit 514 and the image evaluation unit 511B includes a resolution evaluation unit 511B2. Other features of the information processing system S5 may be the same as at least one other feature of the information processing device A2 of the second embodiment to the information processing system S4 of the fourth embodiment. Therefore, in the following, only the differences from the embodiments already described will be described in detail, and the description of other overlapping parts will be omitted as appropriate. [5-2: Information Processing Operation Performed by Information Processing System S5]

[0051] The resolution evaluation unit 511B2 evaluates the resolution of the iris included in the image. The resolution evaluation unit 511B2 determines whether the iris of the image capture target is included in the image at a predetermined resolution. The resolution evaluation unit 511B2 may make this determination based on at least one of the position of the eyes of the image capture target in the image, the distance between the eyes of the image capture target in the image, and the iris diameter of the image capture target in the image. The resolution evaluation unit 511B2 may evaluate the resolution of the image depending on whether the iris of the image capture target is included in the image at a predetermined resolution. The resolution evaluation unit 511B2 may output a resolution evaluation value of the image depending on whether the iris of the image capture target is included in the image at a predetermined resolution.

[0052] An information processing operation performed by the information processing system S5 in the fifth embodiment will be described with reference to FIG. 4 . In S22 in the fifth embodiment, the image evaluation unit 511B may determine whether the resolution evaluation value is less than a threshold value. If the resolution evaluation value is less than the threshold value (step S22: Yes), the image evaluation unit 511B determines whether the imaging target needs to be guided (step S23). If the imaging target needs to be guided (step S23: Yes), the guidance unit 511A may guide the imaging target so that the iris of the imaging target is included in the image at a predetermined resolution (step S24). The guidance unit 511A may output auxiliary information to the imaging target to assist in including the iris of the imaging target in the image at the predetermined resolution.

[0053] Furthermore, in step S24 of the fifth embodiment, the guidance unit 511A may guide the information processing system S5 to move so as to change the distance between the imaging target and the rear camera RC. In this case, in the subsequent step S20, the imaging control unit 512 may capture images at a plurality of different distances. The selection unit 514 may select a desired image from a plurality of images. In this case, in the subsequent step S26, the authentication unit 513 may authenticate the imaging target using information about the iris of the imaging target contained in the selected image. [5-3: Technical Effects of the Information Processing System S5]

[0054] The information processing system S5 in the fifth embodiment determines whether the iris of the subject to be imaged is included in the image at a predetermined resolution and guides the user to include the iris of the subject to be imaged in the image at the predetermined resolution, thereby capturing an iris image at an appropriate resolution. Furthermore, the information processing system S5 guides the user to move the information processing system S5 so as to change the distance between the subject to be imaged and the rear camera RC, and selects a desired image from multiple images captured at multiple different distances, thereby capturing an iris image at a resolution appropriate for iris authentication. [6: Sixth Embodiment]

[0055] Next, a sixth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the sixth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S6 to which the sixth embodiment of the information processing device, the information processing method, and the recording medium is applied. [6-1: Configuration of Information Processing System S6]

[0056] As shown in FIG. 8 , the information processing system S6 of the sixth embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment to the information processing system S5 of the fifth embodiment. Furthermore, the information processing system S6 of the sixth embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment to the information processing system S5 of the fifth embodiment. However, the information processing system S6 does not necessarily have to include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S6 of the sixth embodiment differs from the information processing device A2 of the second embodiment to the information processing system S5 of the fifth embodiment in that the image evaluation unit 611B includes a brightness evaluation unit 611B3. Other features of the information processing system S6 may be the same as at least one other feature of the information processing device A2 of the second embodiment to the information processing system S5 of the fifth embodiment. Therefore, in the following, only the differences from the embodiments already described will be described in detail, and the description of other overlapping parts will be omitted as appropriate. [6-2: Information Processing Operation Performed by Information Processing System S6]

[0057] The brightness evaluation unit 611B3 determines the brightness of the image. The brightness evaluation unit 611B3 may determine whether the brightness of the image is a desired brightness. The brightness evaluation unit 611B3 may determine whether the brightness of the image is a desired brightness according to the luminance of the iris region of the image. The brightness evaluation unit 611B3 may evaluate the brightness of the image according to whether the brightness of the image is a desired brightness. The brightness evaluation unit 611B3 may output a brightness evaluation value of the image according to whether the brightness of the image is a desired brightness.

[0058] An information processing operation performed by the information processing system S6 in the sixth embodiment will be described with reference to FIG. 4 . In S22 in the sixth embodiment, the image evaluation unit 611B may determine whether the brightness evaluation value is less than a threshold value. If the brightness evaluation value is less than the threshold value (step S22: Yes), the image evaluation unit 611B determines whether the imaging target needs to be guided (step S23). If the imaging target needs to be guided (step S23: Yes), the guidance unit 611A may guide the imaging target so that the brightness of the image becomes a desired brightness (step S24). The guidance unit 611A may output auxiliary information to the imaging target to assist in the brightness of the image becoming a desired brightness.

[0059] Furthermore, in step S24 in the sixth embodiment, the brightness evaluation unit 611B3 may detect a lighting device that is in a predetermined distance relationship with the imaging target. The brightness evaluation unit 611B3 may detect a lighting device that is in a predetermined distance relationship with the imaging target based on the image. The brightness evaluation unit 611B3 may identify the position of the lighting device based on the image. The brightness evaluation unit 611B3 may detect a lighting device within the image. Furthermore, the brightness evaluation unit 611B3 may identify the position of the imaging target based on the image. The brightness evaluation unit 611B3 may detect the imaging target within the image. The brightness evaluation unit 611B3 may determine the positional relationship between the lighting device detected in the image and the imaging target.

[0060] In this case, the guidance unit 611A may guide the user to change the positional relationship between the lighting device and the image capture target. The guidance unit 611A may output auxiliary information instructing the user to change the positional relationship between the lighting device and the image capture target. [6-3: Technical Effects of the Information Processing System S6]

[0061] The information processing system S6 in the sixth embodiment determines whether the brightness of an image is a desired brightness and provides guidance to adjust the image brightness to the desired brightness, thereby enabling the capture of an image with the desired brightness. Furthermore, the information processing system S6 detects a lighting device that is at a predetermined distance from the image capture target and provides guidance to change the positional relationship between the lighting device and the image capture target, thereby enabling the image capture target to be guided to a location where an image with the desired brightness can be captured. [7: Seventh Embodiment]

[0062] Next, a seventh embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the seventh embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S7 to which the seventh embodiment of the information processing device, the information processing method, and the recording medium is applied.

[0063] The information processing system S7 in the seventh embodiment differs from the information processing system S6 in the sixth embodiment in the operation of the guidance unit 711A and the brightness evaluation unit 711B3. Other features of the information processing system S7 may be the same as other features of the information processing system S6 in the sixth embodiment. Therefore, the following will describe in detail the parts that differ from the embodiments already described, and will omit explanations of other overlapping parts as appropriate. [7-1: Information Processing Operation Performed by the Information Processing System S7]

[0064] The information processing operation performed by the information processing system S7 in the seventh embodiment may be performed before imaging, i.e., before step S20. Moreover, the information processing operation performed by the information processing system S7 in the seventh embodiment may be performed in step S24, i.e., when the determination in step S23 is Yes.

[0065] In the information processing operation performed by the information processing system S7 in the seventh embodiment, the brightness evaluation unit 711B3 determines whether the image capture target is indoors or outdoors. The brightness evaluation unit 711B3 may determine whether the image capture target is indoors or outdoors depending on the light receiving state of the rear camera RC. The brightness evaluation unit 711B3 may determine whether the image capture target is indoors or outdoors depending on the light state. The brightness evaluation unit 711B3 may determine whether the image capture target is indoors or outdoors depending on the light state. The brightness evaluation unit 711B3 may determine the environment in which the image is captured before capturing the image or when the image evaluation unit 711B determines in step S22 that the brightness evaluation value is less than the threshold.

[0066] If it is determined that the image was captured indoors, the guiding unit 711A may guide the user to move outdoors. The guiding unit 711A may output auxiliary information instructing the user to move outdoors. If the brightness evaluation unit 711B3 determines the environment in which the image was captured before capturing the image, the guiding unit 711A may display auxiliary information instructing the user to move outdoors on the display D. [7-2: Technical Effects of the Information Processing System S7]

[0067] In many cases, an iris image suitable for iris authentication can be captured outdoors rather than indoors. In the information processing system S7 according to the seventh embodiment, when it is determined that an image has been captured indoors, the guidance unit 711A guides the user to move outdoors, so that an iris image suitable for iris authentication can be captured. [8: Eighth Embodiment]

[0068] Next, an eighth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the eighth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S8 to which the eighth embodiment of the information processing device, the information processing method, and the recording medium is applied. [8-1: Configuration of Information Processing System S8]

[0069] As shown in FIG. 10 , the information processing system S8 of the eighth embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment to the information processing system S7 of the seventh embodiment. Furthermore, the information processing system S8 of the eighth embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment to the information processing system S7 of the seventh embodiment. However, the information processing system S8 does not necessarily include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S8 of the eighth embodiment differs from the information processing device A2 of the second embodiment to the information processing system S7 of the seventh embodiment in that the calculation device 21 further implements a lighting control unit 815. Other features of the information processing system S8 may be the same as at least one other feature of the information processing system S7 of the second embodiment to the information processing system S7 of the fifth embodiment. Therefore, in the following, only the differences from the embodiments already described will be described in detail, and the description of other overlapping parts will be omitted as appropriate. [8-2: Information Processing Operation Performed by Information Processing System S8]

[0070] The brightness evaluation unit 811B3 determines the brightness of the image. The brightness evaluation unit 811B3 may determine whether the brightness of the image is a desired brightness. The brightness evaluation unit 811B3 may determine whether the brightness is darker than the desired brightness. The brightness evaluation unit 811B3 may evaluate the brightness of the image depending on whether the brightness of the image is a desired brightness. The brightness evaluation unit 811B3 may output a brightness evaluation value of the image depending on whether the brightness of the image is a desired brightness.

[0071] 11, the information processing operation performed by the information processing system S8 in the eighth embodiment will be described. In S22 in the eighth embodiment, the image evaluation unit 811B may determine whether or not the brightness evaluation value is less than a threshold value. If the brightness evaluation value is less than the threshold value (step S22: Yes), the image evaluation unit 811B determines whether or not it is necessary to guide the imaging target (step S23). If the brightness of the image can be made to the desired brightness by controlling the lighting without guiding the imaging target (step S23: No), the information processing system S8 controls the lighting of the imaging target (step S80). [8-2-1: Lighting Control by the Lighting Control Unit 815]

[0072] In step S80, the lighting control unit 815 controls the lighting operation of the lighting device. The lighting control unit 815 may search for a lighting device that can irradiate the image capture target with light. The lighting control unit 815 may detect a lighting device that is located at a predetermined distance from the image capture target.

[0073] The lighting control unit 815 may determine the positional relationship between the lighting devices that are linked by wireless communication in advance and the imaging target. Alternatively, the lighting control unit 815 may identify the position of the imaging target using a position detection mechanism such as a global positioning system. The lighting control unit 815 may determine the lighting device to control depending on the positional relationship between the lighting devices and the imaging target.

[0074] Furthermore, the brightness evaluation unit 811B3 may detect a lighting device that is at a predetermined distance from the imaging target based on the image. The brightness evaluation unit 811B3 may identify the position of the lighting device based on the image. The brightness evaluation unit 811B3 may determine the direction of the lighting device based on the image. The brightness evaluation unit 811B3 may detect a lighting device within the image. The brightness evaluation unit 811B3 may determine whether it is a lighting device based on the shape within the image.

[0075] The brightness evaluation unit 811B3 may also identify the position of the imaging target based on the image. The brightness evaluation unit 811B3 may detect the imaging target within the image. The brightness evaluation unit 811B3 may also determine the positional relationship between the lighting device detected in the image and the imaging target.

[0076] The lighting control unit 815 outputs instruction information to the lighting device to instruct the brightness of the image to be a desired brightness. The lighting control unit 815 may also output instruction information to the lighting device to instruct the lighting device to increase or decrease the intensity of the light to be output. The lighting device controlled by the lighting control unit 815 may be a lighting device that is not turned on or a lighting device that can emit stronger light. [8-2-2: Lighting Control by the Light Control Unit 811A5]

[0077] In step S80, the light control unit 811A5 controls the lighting of the rear light RL. The light control unit 811A5 controls the lighting of the rear light RL so that the brightness of the image becomes a desired brightness. [8-3: Technical Effects of the Information Processing System S8]

[0078] The information processing system S8 in the eighth embodiment determines whether the brightness of an image is the desired brightness and outputs instructions to a lighting device to adjust the image brightness to the desired brightness, thereby enabling the image to be captured at the desired brightness. Furthermore, the information processing system S8 detects lighting devices that are present at a predetermined distance from the subject to be captured and outputs instructions to the lighting devices to adjust the image brightness to the desired brightness, enabling the system to output instructions to lighting devices appropriate for achieving the desired brightness. Furthermore, if the information processing system S8 determines that the brightness is darker than the desired brightness, it turns on the backlight RL, thereby compensating for the desired brightness and enabling the image to be captured at the desired brightness. [9: Ninth Embodiment]

[0079] Next, a ninth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the ninth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S9 to which the ninth embodiment of the information processing device, the information processing method, and the recording medium is applied. [9-1: Configuration of Information Processing System S9]

[0080] As shown in FIG. 12 , the information processing system S9 of the ninth embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment to the information processing system S8 of the eighth embodiment. Furthermore, the information processing system S9 of the ninth embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment to the information processing system S8 of the eighth embodiment. However, the information processing system S9 does not necessarily have to include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S9 of the ninth embodiment differs from the information processing device A2 of the second embodiment to the information processing system S8 of the eighth embodiment in that the image evaluation unit 911B includes a reflection evaluation unit 911B4. Other features of the information processing system S9 may be the same as at least one other feature of the information processing device A2 of the second embodiment to the information processing system S8 of the eighth embodiment. Therefore, in the following, only the differences from the embodiments already described will be described in detail, and the description of other overlapping parts will be omitted as appropriate. [9-2: Information Processing Operation Performed by Information Processing System S9]

[0081] The reflection evaluation unit 911B4 determines reflection in the image. The reflection evaluation unit 911B4 may determine whether reflection is included in the iris region included in the image. The reflection in the iris region may be reflection of the iris region. The reflection evaluation unit 911B4 may determine whether reflection is included in the iris region included in the image based on, for example, brightness distribution. The reflection evaluation unit 911B4 may evaluate the reflection in the image based on reflection included in the iris region included in the image. The reflection evaluation unit 911B4 may output a reflection evaluation value of the image based on reflection included in the iris region included in the image.

[0082] With reference to FIG. 4, the information processing operation performed by the information processing system S9 in the ninth embodiment will be described. In step S22 in the ninth embodiment, the image evaluation unit 911B may determine whether the reflection evaluation value is less than a threshold value. If the reflection evaluation value is less than the threshold value (step S22: Yes), the image evaluation unit 911B determines whether the imaging target needs to be guided (step S23). If the imaging target needs to be guided (step S23: Yes), the guidance unit 911A may guide the imaging target so that reflection is not included in the iris area (step S24). The guidance unit 911A may output auxiliary information to the imaging target to assist in preventing reflection from being included in the iris area. [9-3: Technical Effects of the Information Processing System S9]

[0083] When it is determined that the iris region contains a reflection, the information processing system S9 in the ninth embodiment guides the user to prevent the reflection from being included in the iris region, thereby making it possible to capture an image without the reflection in the iris region. [10: Tenth Embodiment]

[0084] Next, a tenth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the tenth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S10 to which the tenth embodiment of the information processing device, the information processing method, and the recording medium is applied.

[0085] The information processing system S10 in the tenth embodiment differs from the information processing system S9 in the ninth embodiment in the operation of the guiding unit 1011A. Other features of the information processing system S10 may be the same as other features of the information processing system S9 in the ninth embodiment. Therefore, in the following, differences from the already described embodiments will be described in detail, and descriptions of other overlapping parts will be omitted as appropriate. [10-1: Information Processing Operation Performed by the Information Processing System S10]

[0086] The information processing operation performed by the information processing system S12 in the tenth embodiment may be performed in step S24, that is, when the determination in step S23 is Yes.

[0087] The information processing operation performed by the information processing system S10 in the tenth embodiment will be described with reference to Fig. 14. Fig. 14 is a flowchart showing the flow of the information processing operation performed by the information processing system S10 in the tenth embodiment.

[0088] The brightness evaluation unit 1011B3 determines the brightness distribution in the image (step S100). The guidance unit 1011A may provide predetermined guidance to the image capture target when the brightness distribution in the image is a predetermined distribution. The predetermined brightness distribution in the image may be a brightness distribution in an image that has a lot of reflections and makes it difficult to capture an iris image suitable for iris authentication.

[0089] The reflection evaluation unit 1011B4 estimates a reflection area according to the brightness distribution in the image (step S101). The guidance unit 1011A guides the subject to face in a direction where there are relatively few regions estimated to be reflection areas (step S102). For example, if there are many reflection areas on one side of the image, the guidance unit 1011A may guide the subject to face in a direction opposite to the one side. For example, if there are many reflection areas on the right side of the image, the guidance unit 1011A may guide the subject to face the right side from the perspective of the subject. The guidance unit 1011A may guide the subject so that there is no reflection in the iris area of ​​the subject in the image. [10-2: Technical Effects of the Information Processing System S10]

[0090] The information processing system S10 in the tenth embodiment guides the image capture target in a predetermined direction when the brightness distribution in the image is a predetermined distribution, thereby preventing reflections from appearing in the iris area. Furthermore, the information processing system S10 estimates reflection areas according to the brightness distribution in the image and guides the image capture target to face in a direction where the estimated reflection areas are relatively small, thereby properly guiding the image capture target to prevent reflections from appearing in the iris area. [11: Eleventh Embodiment]

[0091] Next, an eleventh embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the eleventh embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S11 to which the eleventh embodiment of the information processing device, the information processing method, and the recording medium is applied.

[0092] The information processing system S11 in the eleventh embodiment differs from the information processing system S9 in the ninth embodiment and the information processing system S10 in the tenth embodiment in the operation of the guidance unit 1111A and the reflection evaluation unit 1111B4. Other features of the information processing system S11 may be the same as other features of the information processing system S9 in the ninth embodiment or the information processing system S10 in the tenth embodiment. Therefore, in the following, differences from the embodiments already described will be described in detail, and descriptions of other overlapping parts will be omitted as appropriate. [11-1: Information Processing Operation Performed by Information Processing System S11]

[0093] In step S23 of Fig. 4, the reflection evaluation unit 1111B4 determines whether or not a first predetermined amount of reflection exists in the iris area included in the image. That is, in the eleventh embodiment, if a first predetermined amount of reflection exists in the iris area included in the image, the guidance unit 1111A outputs auxiliary information to the image capture target to guide the image capture target. The guidance unit 1111A may perform a guidance operation in the following first case or the third case. [11-1-1: First Case]

[0094] The first information processing operation performed by the information processing system S11 in the eleventh embodiment will be described with reference to Fig. 16(a) , which is a flowchart showing the flow of the first information processing operation performed by the information processing system S11 in the eleventh embodiment.

[0095] The guiding unit 1111A guides the imaging subject to hold the information processing system S11 over their eyes so as to reduce reflections (step S110). Guiding the imaging subject to hold the information processing system S11 over their eyes so as to reduce reflections may be referred to as first guidance. The guiding unit 1111A may guide the imaging subject so that the shadow of the information processing system S11 falls on the iris of the imaging subject. The guiding unit 1111A may guide the imaging subject so as to block reflections of the ceiling. The guiding unit 1111A may guide the imaging subject by outputting auxiliary information to the imaging subject indicating that the information processing system S11 should be held over their eyes so as to reduce reflections.

[0096] The reflection evaluation unit 1111B4 determines whether or not a first predetermined amount of reflection or more exists in the iris region included in the image (step S111). If the first predetermined amount of reflection or more does not exist in the iris region included in the image (step S111: No), the first information processing operation performed by the information processing system S11 in the eleventh embodiment ends.

[0097] If there is a first predetermined amount or more of reflection in the iris area included in the image (step S111: Yes), the guiding unit 1111A guides the imaging subject to face a flat, patternless object (step S112). Guiding the imaging subject to face a flat, patternless object may be referred to as second guidance. The reflection evaluation unit 1111B4 may detect a textureless object from the background shown in the image. The reflection evaluation unit 1111B4 may estimate a textureless area such as a wall, a dresser, or a refrigerator from the background shown in the image. The guiding unit 1111A may guide the imaging subject to face a textureless area. The guiding unit 1111A may guide the imaging subject by outputting auxiliary information to the imaging subject indicating that it should face a textureless object. [11-1-2: Second Case]

[0098] The second information processing operation performed by the information processing system S11 in the eleventh embodiment will be described with reference to Fig. 16(b). Fig. 16(b) is a flowchart showing the flow of the second information processing operation performed by the information processing system S11 in the eleventh embodiment.

[0099] The reflection evaluation unit 1111B4 determines whether or not a second predetermined amount of reflection, which is greater than the first predetermined amount, exists in the iris region included in the image (step S113). If the second predetermined amount of reflection or more exists in the iris region included in the image (step S113: Yes), the guidance unit 1111A guides the imaging subject to face a flat object without a pattern (step S114). If the second predetermined amount of reflection or more does not exist in the iris region included in the image (step S113: No), the guidance unit 1111A guides the imaging subject to hold the information processing system S11 up to the eye to reduce reflection (step S115). [11-1-3: Third Case]

[0100] The third information processing operation performed by the information processing system S11 in the eleventh embodiment will be described with reference to Fig. 16(c), which is a flowchart showing the flow of the third information processing operation performed by the information processing system S11 in the eleventh embodiment.

[0101] The guidance unit 1111A guides the imaging subject to face a flat, patternless object (step S116). The reflection evaluation unit 1111B4 determines whether a first predetermined amount or more of reflection is present in the iris area included in the image (step S117). If the first predetermined amount or more of reflection is present in the iris area included in the image (step S117: Yes), the guidance unit 1111A guides the imaging subject to hold the information processing system S11 up to their eye to reduce the reflection (step S118).

[0102] That is, the guiding unit 1111A at least one of guiding the user to hold the information processing device up to the eye to reduce reflections and guiding the user to face a flat, patternless object. [11-2: Technical Effects of the Information Processing System S11]

[0103] The information processing system S11 in the eleventh embodiment at least one of guiding the user to hold the information processing device up to the eye and guiding the user to face a flat, patternless object to reduce reflections, thereby suppressing reflections in the iris area included in the image. [12: Twelfth Embodiment]

[0104] Next, a twelfth embodiment of an information processing device, an information processing method, and a recording medium will be described. Hereinafter, the tenth embodiment of the information processing device, the information processing method, and the recording medium will be described using an information processing system S12 to which the twelfth embodiment of the information processing device, the information processing method, and the recording medium is applied. [12-1: Configuration of the information processing system S12]

[0105] 17 , the information processing system S12 of the twelfth embodiment includes a calculation device 21 and a storage device 22, similar to the information processing device A2 of the second embodiment to the information processing system S11 of the eleventh embodiment. Furthermore, the information processing system S12 of the twelfth embodiment may include a communication device 23, an input device 24, and an output device 25, similar to the information processing device A2 of the second embodiment to the information processing system S11 of the eleventh embodiment. However, the information processing system S12 does not necessarily include at least one of the communication device 23, the input device 24, and the output device 25. The information processing system S12 of the twelfth embodiment differs from the information processing device A2 of the second embodiment to the information processing system S11 of the eleventh embodiment in that the auxiliary control unit 1211 includes an imaging instruction unit 1211C and an estimation unit 1211D. Other features of the information processing system S12 may be the same as at least one other feature of the information processing device A2 in the second embodiment to the information processing system S11 in the eleventh embodiment. Therefore, in the following, differences from the already described embodiments will be described in detail, and descriptions of other overlapping parts will be omitted as appropriate. [12-2: Information Processing Operation Performed by the Information Processing System S12]

[0106] The information processing operation performed by the information processing system S12 in the twelfth embodiment may be performed before imaging, i.e., before step S20. Moreover, the information processing operation performed by the information processing system S12 in the twelfth embodiment may be performed in step S24, i.e., when the determination in step S23 is Yes.

[0107] The information processing operation performed by the information processing system S12 in the twelfth embodiment will be described with reference to Fig. 18. Fig. 18 is a flowchart showing the flow of the information processing operation performed by the information processing system S12 in the twelfth embodiment.

[0108] The imaging instruction unit 1211C outputs an instruction to the imaging target to capture images from a plurality of different directions (step S120). The imaging instruction unit 1211C may output an instruction to the imaging target to capture images from a plurality of different directions from the position of the imaging target. The imaging instruction unit 1211C may output an instruction to the imaging target to capture images of the entire periphery, 360 degrees, from the position of the imaging target. The imaging instruction unit 1211C may output an instruction to the imaging target to capture images using the rear camera RC. The imaging instruction unit 1211C may output an instruction to the imaging target to capture images using the front camera FC in addition to or instead of the rear camera RC.

[0109] The estimation unit 1211D estimates an appropriate positional relationship between the imaging target and the rear camera RC based on images captured from a plurality of different directions (step S121). The estimation unit 1211D may estimate a location where an iris image suitable for iris authentication can be captured based on the images captured from a plurality of different directions.

[0110] The guiding unit 1211A guides the user to an appropriate positional relationship (step S121). The guiding unit 1211A may output auxiliary information indicating the appropriate positional relationship. The guiding unit 1211A may guide the user to a location where an iris image suitable for iris authentication can be captured. The guiding unit 1211A may output auxiliary information indicating a location where an iris image suitable for iris authentication can be captured. [12-3: Technical Effects of Information Processing System S12]

[0111] The information processing system S12 in the twelfth embodiment estimates an appropriate positional relationship between the object to be imaged and the rear camera RC based on images captured from a plurality of different directions, and guides the object to be imaged in the appropriate positional relationship, thereby enabling the object to be imaged in the appropriate positional relationship. [13: Supplementary Note]

[0112] The following supplementary notes are further disclosed with respect to the above-described embodiments. [Supplementary Note 1] An information processing device comprising: a display; imaging means for imaging an imaging target located on a side opposite to the side facing the display; and auxiliary means for outputting auxiliary information for assisting imaging when the imaging means captures an image including the iris of the imaging target in response to an imaging instruction from the imaging target. [Supplementary Note 2] The information processing device according to Supplementary Note 1, wherein the auxiliary information includes at least one of information regarding an imaging range of the image, information regarding the resolution of the iris included in the image, information regarding brightness of the image, and information regarding reflection in the iris area included in the image. [Supplementary Note 3] The information processing device according to Supplementary Note 1 or 2, wherein the auxiliary information includes information regarding at least one of a movement of the imaging target and a posture of the imaging target, and the auxiliary means includes guidance means for outputting the auxiliary information to the imaging target to guide the imaging target. [Supplementary Note 4] The information processing device according to Supplementary Note 1 or 2, wherein the auxiliary means has guidance means including at least one of audio output means for outputting the auxiliary information by audio, transmission means for transmitting an instruction to output the auxiliary information by image to a device other than the information processing device, and stimulus control means for outputting the auxiliary information by at least one of vibration stimulus and electrical stimulus, and the guidance means outputs the auxiliary information to the image capture target to guide the image capture target. [Supplementary Note 5] The information processing system according to Supplementary Note 3, further comprising a light on the same side as the image capture means, and the guidance means turns on the light to output the auxiliary information. [Supplementary Note 6] The information processing device according to Supplementary Note 3, wherein the auxiliary means has image capture range evaluation means for evaluating an image capture range of the image, and the image capture range evaluation means determines whether the image includes an iris of the image capture target, and the guidance means guides the image so that the iris of the image capture target is included. [Supplementary Note 7] The information processing device according to Supplementary Note 3, wherein the auxiliary means has a resolution evaluation means for evaluating a resolution of an iris included in the image, the resolution evaluation means determines whether the iris of the image capture target is included in the image at a predetermined resolution, and the guidance means guides the image so that the iris of the image capture target is included in the image at the predetermined resolution.[Supplementary Note 8] The information processing device according to Supplementary Note 3, wherein the guiding means guides the user to move the information processing device so as to change the distance between the image capture target and the image capture means, and the image capture means captures the images at a plurality of different distances, and further comprises a selecting means for selecting a desired image from the plurality of images. [Supplementary Note 9] The information processing device according to Supplementary Note 3, wherein the assisting means has a brightness evaluating means for determining brightness of the image, and the brightness evaluating means determines whether the brightness of the image is a desired brightness, and the guiding means provides guidance so that the brightness of the image becomes the desired brightness. [Supplementary Note 10] The information processing device according to Supplementary Note 9, wherein the brightness evaluating means detects lighting means that is at a predetermined distance from the image capture target, and the guiding means provides guidance to change the positional relationship between the lighting means and the image capture target. [Supplementary Note 11] The information processing device according to Supplementary Note 9, wherein the brightness evaluating means determines whether the image has been captured indoors or outdoors, and if it is determined that the image has been captured indoors, the guiding means provides guidance to move outdoors. [Supplementary Note 12] The information processing device according to Supplementary Note 1 or 2, wherein the auxiliary means has brightness evaluation means for determining brightness of the image, the brightness evaluation means for determining whether the brightness of the image is a desired brightness, and the auxiliary means has instruction output means for outputting instruction information to a lighting means for instructing the brightness of the image to be the desired brightness. [Supplementary Note 13] The information processing device according to Supplementary Note 12, wherein the brightness evaluation means detects a lighting means that is present at a predetermined distance from the image capture target, and the instruction output means outputs instruction information to the lighting means for instructing the brightness of the image to be the desired brightness. [Supplementary Note 14] The information processing device according to Supplementary Note 12, further comprising a light on the same side as the image capture means, and wherein the auxiliary means turns on the light when the brightness evaluation means determines that the brightness is darker than the desired brightness.[Supplementary Note 15] The information processing device according to Supplementary Note 3, wherein the assistance means has a reflection evaluation means for determining whether or not a reflection is included in an iris region included in the image, and when the reflection evaluation means determines that a reflection is included in the iris region, the guidance means guides the subject so that the reflection is not included in the iris region. [Supplementary Note 16] The information processing device according to Supplementary Note 9, wherein the brightness evaluation means determines a brightness distribution in the image, and when the distribution is a predetermined distribution, the guidance means provides a predetermined guidance to the image capture target. [Supplementary Note 17] The information processing device according to Supplementary Note 15, wherein the reflection evaluation means estimates a reflection region according to the brightness distribution in the image, and the guidance means guides the subject to face in a direction where the region estimated to be a reflection region is relatively small. [Supplementary Note 18] The information processing device according to Supplementary Note 15, wherein, when the reflection evaluation means determines that a predetermined amount of reflection is present in an iris area included in the image, the guiding means performs at least one of guiding the user to hold the information processing device over the eye to reduce reflection, and guiding the user to face a flat object without pattern. [Supplementary Note 19] The information processing device according to Supplementary Note 3, wherein the assisting means outputs instructions to the image capture target to capture images from a plurality of different directions, and estimates an appropriate positional relationship between the image capture target and the imaging means based on the images captured from the plurality of different directions, and the assisting means guides the user to achieve the appropriate positional relationship. [Supplementary Note 20] An information processing method, wherein, when imaging means that captures an image of an image capture target in response to an imaging instruction from the image capture target located on a side different from that facing a display captures an image including the iris of the image capture target, it outputs auxiliary information to assist in imaging. [Supplementary Note 21] A recording medium having recorded thereon a computer program for causing a computer to execute an information processing method for assisting imaging when an imaging means that captures an image of an imaging target located on a side different from the side facing the display captures an image including the iris of the imaging target.[Supplementary Note 22] The information processing device according to Supplementary Note 7, wherein the resolution evaluation means makes a determination based on at least one of a position of the eyes of the subject in the image, a distance between the eyes of the subject in the image, and an iris diameter of the subject in the image.

[0113] This disclosure may be modified as appropriate within the scope of the claims and the technical idea that can be read from the entire specification. Information processing devices, information processing methods, and recording media that involve such modifications are also included in the technical idea of ​​this disclosure.

[0114] A1, A2 Information processing device S3, S4, S5, S6, S7, S8, S9, S10, S11, S12 Information processing system D Display 11 Auxiliary unit RC Rear camera FC Front camera RL Rear light 211, 1211 Auxiliary control unit 211A, 311A, 411A, 511A, 611A, 711A, 811A, 911A, 1011A, 1111A, 1211A Guidance unit 311A1 Audio output control unit 311A2 Instruction transmission unit 311A3 Vibration stimulation control unit 311A4 Electrical stimulation control unit 311A5, 811A5 Light control unit 211B, 411B, 511B, 611B, 711B, 811B, 911B, 1011B, 1111B, 1211B Image evaluation unit 411B1 Imaging range evaluation unit 511B2 Resolution evaluation unit 611B3, 711B3, 811B3, 1011B3 Brightness evaluation unit 911B4, 1011B4, 1111B4 Reflection evaluation unit 212, 512 Imaging control unit 213, 513 Authentication unit 514 Selection unit 815 Illumination control unit 1211C Imaging instruction unit 1211D Estimation unit

Claims

1. A display, imaging means for imaging an imaging target located on a side different from the side facing the display, and auxiliary means for outputting auxiliary information for assisting imaging when the imaging means images an image including the iris of the imaging target in response to an imaging instruction by the imaging target. An information processing apparatus comprising the above.

2. The auxiliary information includes at least one of information regarding the imaging range of the image, information regarding the resolution of the iris included in the image, information regarding the brightness of the image, and information regarding the reflection on the area of the iris included in the image. The information processing apparatus according to Claim 1.

3. The auxiliary information includes information regarding at least one of the operation of the imaging target and the posture of the imaging target, and the auxiliary means includes guiding means for outputting the auxiliary information to the imaging target to guide the imaging target. The information processing apparatus according to Claim 1 or 2.

4. The auxiliary means has guiding means including at least one of voice output means for outputting the auxiliary information by voice, transmission means for transmitting an instruction to output the auxiliary information by an image to an apparatus other than the information processing apparatus, and stimulation control means for outputting the auxiliary information by at least one of vibration stimulation and electrical stimulation, and the guiding means outputs the auxiliary information to the imaging target to guide the imaging target. The information processing apparatus according to Claim 1 or 2.

5. The apparatus further includes illumination on the same side as the imaging means, and the guiding means turns on the illumination to output the auxiliary information. The information processing apparatus according to Claim 3.

6. The auxiliary means has imaging range evaluation means for evaluating the imaging range of the image, the imaging range evaluation means determines whether the iris of the imaging target is included in the image, and the guiding means guides so that the iris of the imaging target is included in the image. The information processing apparatus according to Claim 3.

7. The auxiliary means has resolution evaluation means for evaluating the resolution of the iris included in the image, the resolution evaluation means determines whether the iris of the imaging target is included in the image at a predetermined resolution, and the guiding means guides so that the iris of the imaging target is included in the image at a predetermined resolution. The information processing apparatus according to Claim 3.

8. The guiding means guides the information processing apparatus to move so that the distance between the imaging target and the imaging means changes, and the imaging means images the image at a plurality of different distances. Further comprising selection means for selecting a desired image from the plurality of images The information processing apparatus according to claim 3

9. When the imaging means for imaging an imaging target by an imaging instruction from an imaging target on a side different from the side facing the display captures an image including the iris of the imaging target, auxiliary information for assisting imaging is output An information processing method executed by a computer

10. To the computer When the imaging means for imaging an imaging target by an imaging instruction from an imaging target on a side different from the side facing the display captures an image including the iris of the imaging target, auxiliary information for assisting imaging is output A computer program for causing a computer to execute an information processing method