Image acquisition device, image acquisition method, and program

Abstract

In the present invention, an image acquisition device comprises an image acquisition means for acquiring a plurality of face images, and an image selection means for selecting a face image, among the plurality of face images, that meets a standard stipulated in accordance with the purposes of use of the face images.

Description

[Technical Field]

[0001] The present invention relates to an image acquisition device, an image acquisition method, and program Regarding. [Background technology]

[0002] When a facial image of the person is required during a procedure, there are generally standards regarding the facial image, such as not wearing a hat. In relation to the establishment of standards for facial images, Patent Document 1 describes an automatic passport photo machine for taking a facial photograph that meets the facial photograph requirements stipulated in the application procedure. Before taking the facial photograph, this automatic passport photo machine notifies the applicant of the requirements for taking the photograph by visual or audio means, such as "Please remove your hat" or "Please face forward."

[0003] The automatic ID photo machine also determines whether the facial image detected from the facial photograph satisfies the facial image requirements. If the facial image requirements are not met, the automatic ID photo machine notifies the applicant of the unmet facial image requirements by image or audio, and takes the facial photograph again. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-061576 Summary of the Invention [Problem to be solved by the invention]

[0005] If standards for facial images are established, it may take time to obtain a facial image that satisfies the standards, such as when the obtained facial image does not meet the standards and the photograph needs to be taken again. It is preferable that the time required to obtain a face image that meets the standard is short.

[0006] An example of the object of the present invention is to provide an image acquisition device, an image acquisition method, and program The purpose is to provide [Means for solving the problem]

[0007] According to a first aspect of the present invention, an image acquisition device includes: a notification means for notifying the subject to move their face up and down and left and right, and after the notification means starts the notification, The system is provided with an image acquisition means for determining whether or not the person to be photographed is moving his / her face, and for continuing to photograph with a camera while the person to be photographed is moving his / her face to acquire a plurality of face images, and an image selection means for selecting a face image from the plurality of face images that satisfies a standard defined according to the purpose of use of the face image.

[0008] According to a second aspect of the present invention, there is provided an image acquisition method, comprising: After starting a notification prompting the subject to move their face up, down, left and right, The method includes determining whether or not the person to be photographed is moving his / her face, continuing to photograph with a camera while the person to be photographed is moving his / her face, thereby obtaining a plurality of face images, and selecting a face image from the plurality of face images that satisfies a standard defined according to the purpose of use of the face image.

[0009] According to a third aspect of the present invention, there is provided a program for executing the program on a computer, the program comprising: After starting a notification prompting the subject to move their face up, down, left and right, The program executes the following: determining whether or not the person being photographed is moving his / her face, continuing to photograph with a camera while the person being photographed is moving his / her face, acquiring a plurality of facial images, and selecting, from the plurality of facial images, a facial image that satisfies a standard defined according to the purpose of use of the facial image. [Effects of the Invention]

[0010] The image acquisition device, the image acquisition method, and program According to this, when standards for facial images are established, it is expected that the time required to obtain a facial image that satisfies the standards will be short. [Brief explanation of the drawings]

[0011] [Figure 1]1 is a schematic configuration diagram illustrating an example of the configuration of a license renewal system according to an embodiment. [Figure 2] FIG. 1 is a schematic block diagram illustrating an example of a functional configuration of an image acquisition device according to an embodiment. [Figure 3] 10 is a flowchart illustrating an example of a processing procedure for the image acquisition device according to the embodiment to acquire a face image that meets a standard. [Figure 4] FIG. 1 is a diagram illustrating an example of the configuration of an image acquisition device according to an embodiment. [Figure 5] 10 is a flowchart illustrating an example of a processing procedure in an image acquisition method according to the embodiment. [Figure 6] FIG. 1 is a schematic block diagram illustrating the configuration of a computer according to at least one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] The following describes embodiments of the present invention, but the following embodiments do not limit the scope of the invention as claimed. Furthermore, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. In the following, an example will be described in which the embodiment is applied to acquiring a face image for driver's license renewal. However, the scope of application of the embodiment is not limited to this. The following embodiment can be applied to acquiring various face images for which standards have been established.

[0013] 1 is a schematic diagram showing an example of the configuration of a license renewal system according to an embodiment. In the configuration shown in FIG. 1, a license renewal system 10 includes a license renewal server device 100 and an image acquisition device 200. The license renewal server device 100 and the image acquisition device 200 communicate with each other via a communication network 900 .

[0014] The license renewal system 10 is a system for renewing driver's licenses. In the license renewal system 10, a person whose license is to be renewed can perform some of the license renewal procedures in advance using the image acquisition device 200. "In advance" here refers to before going to a license renewal facility such as a license center to perform the license renewal procedures. In particular, a person whose license is to be renewed can take a facial image for a license using the image capture device 200. The facial image for a license is a facial image that will be used on a license after license renewal.

[0015] The license renewal server device 100 determines whether a person to be renewed who has completed the license renewal procedure meets the conditions for license renewal. If it is determined that the conditions are met, the license renewal server device 100 issues a license after the license renewal. If the person to be renewed has taken a license photo using the image acquisition device 200, the license renewal server device 100 acquires a license-use facial image from the image acquisition device 200 and issues a license after the license renewal. The license renewal server device 100 may be configured using a computer such as a workstation or a personal computer (PC).

[0016] The image acquisition device 200 is a device used by a person whose license is to be renewed. As described above, some of the procedures for license renewal can be performed in advance using the image acquisition device 200. A user whose license is to be renewed can use the image acquisition device 200 to take a face image for use on a driver's license. Furthermore, the image acquisition device 200 determines whether the captured facial image satisfies the standards for a facial image for a driver's license. For example, the image acquisition device 200 may determine whether the captured facial image satisfies all of the following standards:

[0017] The background is colorless. The subject is facing forward. The subject is not wearing a hat. The image is not edited. There is a 3-4mm margin above the subject's head. The facial expression is expressionless. The size of the face image (the size of the entire image including parts other than the face) is a predetermined size. For example, the size of the face image is 3 centimeters in height and 2.4 centimeters in width. The size of the face image in the face image is a predetermined size. For example, the height and width of the face image are each within a predetermined range. The subject is not wearing colored contact lenses.

[0018] However, the standards that image acquisition device 200 determines are not limited to specific ones. Various standards can be used as standards that image acquisition device 200 determines depending on the standards required for the procedure for submitting a facial image. For example, image acquisition device 200 may determine whether a captured facial image satisfies only some of the above standards. In this way, image acquisition device 200 may determine whether at least one of the above standards is satisfied. The image acquisition device 200 selects, from among the acquired face images, face images that are determined to satisfy the standard.

[0019] The image acquisition device 200 may determine whether a facial image already stored in addition to or instead of the captured facial image is the facial image of the person whose license is to be renewed and whether it meets the standards for a facial image for a driver's license. If there are multiple facial images that meet the standards for a facial image for a driver's license, the image acquisition device 200 may present the multiple facial images to the user and allow the user to select one of the facial images. The image acquisition device 200 may be configured to present to the user, for a face image that does not satisfy the conditions for a face image for a driver's license, the reason why the face image does not satisfy the standards for a face image for a driver's license.

[0020] The image acquisition device 200 may be configured using a smartphone carried by the person whose license is to be renewed. For example, the function of the image acquisition device 200 to perform part of the license renewal procedure in advance may be executed by the smartphone executing an application program for the license renewal advance procedure.

[0021] However, the configuration of image acquisition device 200 is not limited to a configuration using a smartphone. For example, an illumination camera may be used as image acquisition device 200. Alternatively, image acquisition device 200 may be configured as a computer other than a smartphone equipped with a camera, such as a tablet terminal or a personal computer owned by the person whose license is to be renewed.

[0022] The communication network 900 mediates communication between the license renewal server device 100 and the image acquisition device 200. The communication network 900 is not limited to a specific type of communication network, and can be various types of communication networks depending on the license renewal server device 100 and the image acquisition device 200. For example, if the image acquisition device 200 is configured using a smartphone and connects to the Internet via an access point, the communication network 900 may be configured to include a combination of a wireless communication network using the access point, the Internet, and a LAN (Local Area Network) on the license renewal server device 100 side that connects to the Internet.

[0023] Fig. 2 is a schematic block diagram showing an example of the functional configuration of image acquisition device 200. In the configuration shown in Fig. 2, image acquisition device 200 includes a communication unit 210, a display unit 220, an operation input unit 230, a camera 240, a storage unit 280, and a control unit 290. Control unit 290 includes an image acquisition unit 291, an image selection unit 292, a notification unit 293, a cropping unit 294, and a processing determination unit 295.

[0024] The communication unit 210 communicates with other devices under the control of the control unit 290. In particular, the communication unit 210 communicates with the license renewal server device 100 via the communication network 900. Display unit 220 has a display screen such as a liquid crystal panel or an LED (Light Emitting Diode) panel, and displays various images under the control of control unit 290. For example, display unit 220 displays various messages for the user. Furthermore, when capturing images with camera 240, display unit 220 may be configured to display captured images continuously output by camera 240 in real time.

[0025] The operation input unit 230 includes an input device such as a touch sensor that is provided on the display screen of the display unit 220 and forms a touch panel, and receives user operations. The camera 240 captures an image by converting incident light into image data and outputs the captured image as image data. In particular, the camera 240 captures a face image for a driver's license under the control of the image acquisition unit 291 and outputs the captured still image.

[0026] The storage unit 280 stores various data. The storage unit 280 is configured using a storage device provided in the image acquisition device 200. The control unit 290 performs various processes by controlling each unit of the image acquisition device 200. The functions of the control unit 290 are performed, for example, by a CPU (Central Processing Unit) included in the image acquisition device 200 reading and executing a program from the storage unit 280.

[0027] The image acquisition unit 291 acquires a plurality of face images as face images for a driver's license. The image acquisition unit 291 corresponds to an example of an image acquisition means. The image acquiring unit 291 may acquire a facial image by taking a photograph using the camera 240. Furthermore, in addition to or instead of taking a photograph using the camera 240, the image acquiring unit 291 may acquire a facial image by reading out a facial image that has already been stored in the storage unit 280.

[0028] The image acquisition unit 291 may take images multiple times with the camera 240 after the notification unit 293 starts notifying the user, ie, the person to be photographed. For example, while the notification unit 293 is issuing a notification urging the subject to move his / her face, or after issuing this notification, the camera 240 may take multiple photographs. This allows the image acquisition unit 291 to acquire facial images of the subject's face in various orientations, and is expected to be able to acquire a facial image facing forward, which is one of the standards for facial images for illumination certificates.

[0029] In addition to or instead of moving the face of the person being photographed, the notification unit 293 may issue a notification urging the person to move the camera 240, such as by moving the image acquisition device 200. Then, while the notification unit 293 is issuing this notification, or after issuing this notification, the camera 240 may take multiple images. This allows the image acquisition unit 291 to acquire facial images of the person being photographed in various orientations, and is expected to be able to acquire a facial image facing forward, which is one of the standards for facial images for illumination certificates.

[0030] When capturing an image with camera 240, image acquisition unit 291 may display the captured images continuously output by camera 240 in real time on a portion of the display screen of display unit 220 that is close to camera 240. This allows the user, who is the subject of the image capture, to view the image without shifting their line of sight from camera 240 and check whether they can properly capture a facial image for a driver's license. The image acquisition unit 291 may associate meta information such as the date of shooting with the image captured by the camera 240.

[0031] The image selection unit 292 selects a facial image that satisfies the standards for a facial image for a driver's license from among the plurality of facial images acquired by the image acquisition unit 291. As described above with respect to the image acquisition device 200, the image selection unit 292 may select a facial image that satisfies at least one of the following facial image standards: the background is colorless, the person being photographed is facing forward, the person being photographed is not wearing a hat, the image is not edited, there is a predetermined margin above the image of the person being photographed, the person being photographed has a neutral expression, the size of the entire image is a predetermined size, the height and width of the facial image are each within a predetermined range, and the person being photographed is not wearing colored contact lenses. The image selection unit 292 is an example of an image selection means.

[0032] When there are multiple facial images that meet the driver's license facial image standards, the image selection unit 292 may accept the user's selection of any one of the facial images. For example, the image selection unit 292 may control the display unit 220 to display multiple facial images that meet the driver's license facial image standards. Then, the image selection unit 292 may select any one of the multiple facial images in response to a user operation accepted by the operation input unit 230.

[0033] The notification unit 293 issues a notification regarding photographing. The notification regarding photographing issued by the notification unit 293 is not limited to a specific type of notification. For example, the notification regarding photographing issued by the notification unit 293 may be a notification of a condition regarding the person to be photographed, such as that the person to be photographed is not wearing a hat. Alternatively, the notification regarding photographing issued by the notification unit 293 may be a notification regarding an action during photographing, such as moving the face of the person to be photographed or moving the image acquisition device 200. The notification unit 293 is an example of a notification means.

[0034] When a user takes a selfie, that is, when the user photographs himself / herself using image acquisition device 200, notification unit 293 notifies the user, who is the subject of the photograph. The following describes an example in which the user photographs himself / herself using image acquisition device 200. However, the person operating image acquisition device 200 and the person photographed may be different people. The person operating image acquisition device 200 is also referred to as the photographer.

[0035] The notification method performed by the notification unit 293 is not limited to a specific method. For example, the notification unit 293 may display a message on the display unit 220. Alternatively, in addition to or instead of displaying a message on the display unit 220, the notification unit 293 may output a message by voice from a speaker provided in the image acquisition device 200.

[0036] In particular, the notification unit 293 issues a notification regarding the photographing when a face image for a driver's license is photographed. As described above, the notification unit 293 may issue a notification prompting the user to move their face. For example, the notification unit 293 may issue a notification prompting the user to move their face left and right. Alternatively, the notification unit 293 may issue a notification prompting the user to move their face up and down, left and right.

[0037] Alternatively, the notification unit 293 may issue a notification urging the user to turn their face in a predetermined direction in a predetermined order. For example, the notification unit 293 may switch the direction of an arrow at predetermined time intervals and display the arrow on the display unit 220. Then, the notification unit 293 may urge the user to move their face in the direction of the arrow at the timing when the arrow is displayed. However, the notification performed by the notification unit 293 to prompt the user to move their face is not limited to these.

[0038] As described above, in addition to or instead of moving the user's face, the notification unit 293 may issue a notification urging the user to move the camera 240, such as by moving the image capture device 200. As described above with respect to the image acquisition device 200, the image acquisition unit 291 may be configured to present to the user the reason why a facial image that does not meet the conditions for a facial image for a driver's license does not meet the standards for a facial image for a driver's license.

[0039] The cutout unit 294 cuts out a partial image conforming to the standard of a face image for a driver's license from the face image acquired by the image acquisition unit 291. The cutout unit 294 corresponds to an example of a cutout means. For example, the cropping unit 294 enlarges or reduces the facial image and rotates it to correct tilt. Then, the cropping unit 294 crops a partial image that is 3 centimeters high and 2.4 centimeters wide, which is the size specified for a facial image for a driver's license. The cropping unit 294 performs the above-described enlargement or reduction, rotation, and cropping of the partial image so that the resulting image meets the standards for a facial image for a driver's license, such as the size of the shoulder width and the margin above the head of the photographed person. The cropping unit 294 may also perform a correction to make the background of the face image colorless.

[0040] The processing determination unit 295 determines whether or not an image has been processed. In particular, when the image acquisition unit 291 acquires a face image that is already stored in the storage unit 280, the processing determination unit 295 determines whether or not this face image has been processed. The camera 240 may take a facial image of the user, and the modification determination unit 295 may compare the taken facial image with a facial image acquired by the image acquisition unit 291 from the storage unit 280. For example, the modification determination unit 295 may compare the relative sizes and positional relationships of various parts of the face, such as the eyes, nose, and mouth. This is expected to make it possible to detect modifications, particularly morphing. In addition to or instead of the above comparison, the modification determination unit 295 may determine whether the brightness of the image is brighter than a predetermined threshold value, or whether there are discontinuous parts in the facial contour.

[0041] FIG. 3 is a flowchart showing an example of a processing procedure in which the image acquisition device 200 acquires a face image that meets the standard. 3, the notification unit 293 issues a notification regarding capturing a face image for a driver's license (step S101). As described above, the notification unit 293 may issue a notification to prompt the user to move their face. In addition to or instead of prompting the user to move their face, the notification unit 293 may issue a notification to prompt the user to move the camera 240, such as by moving the image acquisition device 200.

[0042] Next, camera 240 takes images multiple times under the control of image acquisition unit 291 (S102). Image acquisition unit 291 may refer to the images taken by camera 240 to determine whether the user is moving their face, and may cause camera 240 to continue taking images while the user is moving their face. The image acquisition unit 291 may acquire a face image stored in the storage unit 280 in addition to or instead of the image captured by the camera 240.

[0043] Next, the cropping unit 294 crops a partial image from each of the images obtained in step S102 (step S103). As described above, the cropping unit 294 enlarges, reduces, and rotates the image in accordance with the standards for facial images for driver's licenses, and crops out a facial image of a size defined by the standards for facial images for driver's licenses. If a partial image that meets the standards cannot be obtained, the cropping unit 294 may output information indicating that cropping failed instead of a partial image.

[0044] Next, the processing determination unit 295 determines whether or not each of the partial images (face images) cut out by the cutout unit 294 has been processed (step S104). Then, the image selection unit 292 selects a face image that satisfies the standards for a face image for a driver's license from among the face images determined to be unedited (step S105). If there are multiple face images that are determined to satisfy the standards for a face image for a driver's license, the image selection unit 292 may select any one of these multiple face images based on the user's selection. After step S105, the image acquisition device 200 ends the processing of FIG.

[0045] As described above, the image acquisition unit 291 acquires a plurality of facial images. The image selection unit 292 selects, from the plurality of facial images, a facial image that satisfies the standards for a facial image for a driver's license, which are standards defined according to the intended use of the facial image. In this way, by having the image acquisition unit 291 acquire a plurality of face images, it is expected that the time required to acquire a face image that meets the standard will be short.

[0046] In particular, compared to a method of acquiring one facial image and then acquiring another facial image if it is determined that the acquired facial image does not meet the standards, image acquisition device 200 is expected to take less time because it does not repeatedly switch between determining whether the standards are met and acquiring the image.

[0047] Furthermore, the notification unit 293 issues a notification regarding the image capture. After the notification unit 293 starts the notification, the image acquisition unit 291 captures images multiple times with the camera 240. If the photographer or the photographed person, or both, follow the notification from the notification unit 293, the likelihood of obtaining a facial image that meets the standards for a facial image for a driver's license increases.

[0048] Furthermore, the notification unit 293 issues a notification urging the subject to move his or her face. This allows the image acquisition unit 291 to acquire facial images of the subject's face in various orientations, and it is expected that a facial image facing forward, which is one of the standards for facial images for illumination certificates, can be acquired.

[0049] Furthermore, while the notification unit 293 is issuing a notification urging the subject to move his / her face, the image acquisition unit 291 captures images multiple times using the camera 240. This allows the image acquisition unit 291 to capture images at the timing when the subject is moving his / her face, and it is expected that facial images of the subject's face in various orientations can be acquired as described above.

[0050] Furthermore, the notification unit 293 issues a notification urging the user to move the camera 240. This allows the image acquisition unit 291 to acquire facial images of the subject's face in various orientations, and is expected to be able to acquire a facial image facing forward, which is one of the standards for facial images for illumination certificates.

[0051] Furthermore, the image acquiring unit 291 captures images multiple times with the camera 240 while the notification unit 293 is issuing the notification urging the photographer to move the camera 240. This allows the image acquiring unit 291 to capture images at the timing when the photographer is moving the camera, and it is expected that facial images of the subject's face in various orientations can be acquired as described above.

[0052] Furthermore, the notification unit 293 notifies the person to be photographed. In the image acquisition device 200, even when the user is the person being photographed, i.e., when the user photographs the user himself, if the person being photographed follows the notification from the notification unit 293, there is a high possibility that a facial image that meets the standards for a facial image for a driver's license will be obtained.

[0053] Furthermore, the cutout unit 294 cuts out a partial image from the face image in accordance with the standard. As a result, the image acquisition device 200 can obtain a face image of a size that conforms to the standard of the face image for illumination proof.

[0054] 4 is a diagram showing an example of the configuration of an image acquisition device according to an embodiment. In the configuration shown in FIG. 4, an image acquisition device 610 includes an image acquisition unit 611 and an image selection unit 612. With this configuration, the image acquisition unit 611 acquires a plurality of facial images. The image selection unit 612 selects, from the plurality of facial images acquired by the image acquisition unit 611, a facial image that satisfies a standard defined according to the intended use of the facial image. The image acquisition unit 611 is an example of an image acquisition means, and the image selection unit 612 is an example of an image selection means.

[0055] In this way, by having the image acquisition unit 611 acquire a plurality of face images, it is expected that the time required to acquire a face image that meets the standard will be short. In particular, compared to a method of acquiring one facial image and then acquiring another facial image if it is determined that the acquired facial image does not meet the standards, image acquisition device 610 is expected to take less time because it does not repeatedly switch between determining whether the standards are met and acquiring the image.

[0056] 5 is a flowchart showing an example of a processing procedure of an image acquisition method according to the embodiment. The image acquisition method shown in FIG. 5 includes acquiring an image (step S611) and selecting an image (step S612).

[0057] In acquiring images (step S611), a plurality of facial images are acquired. In selecting images (step S612), a facial image that satisfies a standard defined according to the intended use of the facial image is selected from the plurality of facial images acquired in step S611.

[0058] By acquiring a plurality of facial images in this way, it is expected that the time required to obtain a facial image that meets the standard will be shortened. In particular, compared to a method in which one facial image is acquired and, if the acquired facial image is determined not to satisfy the standard, another facial image is acquired, the method described in FIG. 5 is expected to take less time because it does not require repeated switching between determining whether the standard is satisfied and acquiring the image.

[0059] FIG. 6 is a schematic block diagram illustrating the configuration of a computer according to at least one embodiment. In the configuration shown in FIG. 6, a computer 700 includes a CPU 710, a main memory device 720, an auxiliary memory device 730, and an interface 740.

[0060] One or more of the image acquisition device 200 and the image acquisition device 610 may be implemented in the computer 700. In this case, the operation of each of the above-described processing units is stored in the auxiliary storage device 730 in the form of a program. The CPU 710 reads the program from the auxiliary storage device 730, loads it into the main storage device 720, and executes the above-described processing in accordance with the program. The CPU 710 also allocates storage areas in the main storage device 720 corresponding to each of the above-described storage units in accordance with the program. Communication between each device and other devices is executed by an interface 740 having a communication function and performing communication under the control of the CPU 710.

[0061] When the image acquisition device 200 is implemented in the computer 700, the operations of the control unit 290 and each of its components are stored in the form of a program in the auxiliary storage device 730. The CPU 710 reads the program from the auxiliary storage device 730, loads it into the main storage device 720, and executes the above-described processing in accordance with the program. Furthermore, the CPU 710 allocates a storage area corresponding to the storage unit 280 in the main storage device 720 in accordance with the program.

[0062] Communication by communication unit 210 is performed by interface 740 having a communication device and operating under the control of CPU 710. Display by display unit 220 is performed by interface 740 having a display device and displaying various images under the control of CPU 710. Reception of user operations by operation input unit 230 is performed by interface 740 having an input device and outputting information indicating the received user operations to CPU 710. Photography by camera 240 is performed by interface 740 having a camera and performing photography under the control of CPU 710.

[0063] When the image acquisition device 610 is implemented in the computer 700, the operations of the image acquisition unit 611 and the image selection unit 612 are stored in the form of a program in the auxiliary storage device 730. The CPU 710 reads the program from the auxiliary storage device 730, loads it into the main storage device 720, and executes the above-mentioned processing in accordance with the program. Furthermore, the CPU 710 allocates a storage area in the main storage device 720 for the image acquisition device 610 to perform processing in accordance with the program.

[0064] Communication by the image acquisition device 610 is performed by the interface 740 having a communication device and operating under the control of the CPU 710. Display by the image acquisition device 610 is performed by the interface 740 having a display device and displaying various images under the control of the CPU 710. Reception of a user operation by the image acquisition device 610 is performed by the interface 740 having an input device and outputting information indicating the received user operation to the CPU 710. Photography by the image acquisition device 610 is performed by the interface 740 having a camera and performing photography under the control of the CPU 710.

[0065] Note that a program for executing all or part of the processing performed by image acquisition device 200 and image acquisition device 610 may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed to perform the processing of each unit. Note that the term "computer system" here includes hardware such as an OS and peripheral devices. Furthermore, "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs (Read Only Memory), and CD-ROMs (Compact Disc Read Only Memory), as well as storage devices such as hard disks built into computer systems. The program may be one that realizes part of the functions described above, or may be one that can realize the functions described above in combination with a program already stored in the computer system.

[0066] Although an embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes designs within the scope of the gist of the present invention. [Industrial Applicability]

[0067] Embodiments of the present invention may be applied to an image acquisition device, an image acquisition method, and a recording medium. [Explanation of symbols]

[0068] 10 License Renewal System 100 License renewal server device 200, 610 Image acquisition device 210 Communications Department 220 Display section 230 Operation input section 240 Camera 280 Storage section 290 Control Unit 291, 611 Image acquisition unit 292, 612 Image selection section 293 Notification Department 294 Cutout 295 Processing judgment section 900 Communication Network

Claims

1. A notification means for prompting the subject to move their face up, down, left and right; an image acquisition means for determining whether the subject is moving their face after the notification means starts the notification, and for continuing to capture images of the subject with a camera while the subject is moving their face, thereby acquiring a plurality of facial images; an image selection means for selecting a facial image from the plurality of facial images that satisfies a standard defined according to the intended use of the facial image; An image acquisition device comprising:

2. the notification means issues the notification to prompt the subject to move their face in a predetermined direction in a predetermined order. The image acquisition device of claim 1 .

3. the image acquisition means captures an image multiple times with the camera while the notification means is issuing the notification urging the subject to move their face; 3. The image acquisition device according to claim 1.

4. the notification means issues the notification prompting the user to move the camera.

4. An image acquisition device according to claim 1.

5. the image acquisition means takes a plurality of images with the camera while the notification means is issuing the notification urging the user to move the camera; The image acquisition device of claim 4 .

6. The image selection means selects the facial image that satisfies at least one of the following criteria for the facial image: the background is colorless; the person being photographed is facing forward; the person being photographed is not wearing a hat; the image is not edited; there is a predetermined margin above the head of the person being photographed; the person being photographed has a neutral expression; the size of the entire image is a predetermined size; the height and width of the face image are each within a predetermined range; and the person being photographed is not wearing color contact lenses.

6. An image acquisition device according to any one of claims 1 to 5.

7. The computer After starting a notification to prompt the subject to move their face up and down and left and right, it is determined whether the subject is moving their face, and while the subject is moving their face, the camera continues taking pictures to obtain a plurality of face images; selecting a facial image from the plurality of facial images that satisfies a standard defined according to a purpose of use of the facial image; An image acquisition method comprising:

8. On the computer, After starting a notification to prompt the subject to move their face up and down and left and right, it is determined whether the subject is moving their face, and while the subject is moving their face, the camera continues taking pictures to obtain a plurality of face images; selecting a facial image from the plurality of facial images that satisfies a standard defined according to a purpose of use of the facial image; A program to execute.

Images