JP2021163166A - Program, authenticity determination method and authenticity determination device - Google Patents

Abstract

To provide a program, an authenticity determination method and an authenticity determination device, capable of easily determining authenticity without requiring a special skill.SOLUTION: An authenticity determination device 1 images a light modulation element 2 on which a reproduction image is generated, while changing an imaging distance h, and determines authenticity on the basis of the image including an imaged outer frame 23 and characters 23a of the reproduction image. The device determines an object to be determined as a true object when a size of the characters 23a in the image does not change with a change in the imaging distance h, and as a false object when a size of the characters 23a in the image changes with the change in the imaging distance h.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a program, an authenticity determination method, and an authenticity determination device.

Traditionally, various anti-counterfeiting measures have been used for items that require forgery prevention as well as authentication such as cash cards, credit cards, check cards and other cards, cash vouchers, identification cards, important documents, branded products, etc. Is planned. Anti-counterfeiting measures are also used by customs to determine infringing goods. As the anti-counterfeiting means, for example, a light modulation element such as a hologram is known.

Since a light image emerges around the irradiation position of the light source and is visually recognized in the hologram. Can be determined.

Patent Document 1 describes an authenticity determination support device that images a pattern of light emitted by an anti-counterfeit medium of a determination object and displays the captured pattern and a pattern of light emitted by a true anti-counterfeit medium side by side. It is disclosed.

International Publication No. 2016/190107

However, in a device such as Patent Document 1, since the observer visually judges the difference between the two displayed patterns, the characteristics of the light pattern emitted by the true anti-counterfeit medium are fully understood. It is necessary to make a judgment after doing so, and it is impossible to distinguish without special skills. In particular, when the difference in the authenticity pattern is minute, there is a risk of erroneous recognition.

The present disclosure has been made in view of such circumstances, and the purpose of the present disclosure is to provide a program, an authenticity determination method, and an authenticity determination device capable of easily performing an authenticity determination without requiring special skills. To provide.

The program according to the present invention is a program for determining the authenticity of a determination object provided with a light modulation element that generates a reproduced image having a size corresponding to the distance from the point light source by the light from the point light source. Images obtained by imaging the light modulation element in which the reproduced image is generated at a plurality of imaging distances are acquired, and the authenticity of the determination target object is determined based on the size change of the reproduced images in the acquired plurality of images. Then, the computer is made to execute a process of outputting the determined result.

The program according to the present invention calculates the size of the reproduced image in the image and the reference object other than the reproduced image, and the calculated size of the reproduced image does not change with the change of the imaging distance, and the calculated reference object When the size of the image changes with a change in the imaging distance, the computer is made to execute a process of determining the object to be determined as true.

The program according to the present invention is characterized in that a computer executes a process of calculating the size of the outer frame image of the light modulation element as the size of the reference object.

The program according to the present invention is characterized in that a computer executes a process of capturing a still image or a moving image of the light modulation element.

The program according to the present invention is characterized in that a computer executes a process of displaying an imaging support image for maintaining an imaging angle.

The program according to the present invention displays a first guide frame for guiding the outer frame image, and when the outer frame image matches the first guide frame, the first including the outer frame image and the reproduced image. A second guide frame having a size different from that of the first guide frame for guiding the outer frame image after acquiring an image, outputting information to the effect that the imaging distance should be changed, and changing the imaging distance is provided. When the outer frame image matches the second guide frame, a second image including the outer frame image and the reproduced image is acquired, and the size of the outer frame image and the reproduced image of the first image and the said It is characterized in that a computer is made to execute a process of determining authenticity by comparing the sizes of the outer frame image and the reproduced image of the second image.
The program according to the present invention is characterized in that a computer executes a process of determining a change in an imaging distance.

The authenticity determination method according to the present invention is an authenticity determination method for determining the authenticity of a determination object provided with a light modulation element that generates a reproduced image having a size corresponding to the distance from the point light source by the light from the point light source. The computer acquires an image obtained by imaging the light modulation element in which the reproduced image is generated at a plurality of imaging distances, and based on the size change of the reproduced image in the acquired plurality of images. It is characterized in that a process of determining the authenticity of a determination target object and outputting the determination result is executed.

The authenticity determination device according to the present invention is an authenticity determination device that determines the authenticity of a determination object provided with a light modulation element that generates a reproduced image having a size corresponding to the distance from the point light source by the light from the point light source. The light modulation element in which the reproduced image is generated is imaged at a plurality of imaging distances, and the image obtained is acquired. Based on the size change of the reproduced image in the acquired plurality of images. It is characterized by including a determination unit for determining the authenticity of the determination object and an output unit for outputting the determination result.

According to the present invention, authenticity can be easily determined without requiring special skill.

It is a block diagram which shows the structural example of the authenticity determination device. It is a schematic cross-sectional view which shows an example of the light modulation element. It is a conceptual diagram which reproduces an optical image in a light modulation element using an authenticity determination apparatus, and takes an image. It is a schematic diagram which shows the example of the screen which shows the imaging support image. It is a flowchart which shows the procedure example of the screen display of the display part at the time of image pickup. It is a conceptual diagram which shows the change of the correct answer reproduction image according to the change of the imaging distance. It is a comparison diagram of the photograph of the correct answer reproduction image and the non-correct answer reproduction image. It is a flowchart which shows the procedure example of the authenticity determination processing executed by the control unit.

Hereinafter, embodiments will be specifically described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration example of the authenticity determination device 1. The authenticity determination device 1 includes a control unit 10, a storage unit 11, an operation unit 12, a display unit 13, a light source unit 14, an imaging unit 15, and the like, and each of these units is connected to each other via a bus. In the present embodiment, the authenticity determination device 1 is a smartphone, but is not limited to this, and may be, for example, a mobile phone, a tablet, smart glasses, or the like.

The control unit 10 includes a processor such as a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit). The control unit 10 appropriately executes the control program stored in the storage unit 11 to perform various information processing, control processing, and the like performed by the authenticity determination device 1.

The storage unit 11 stores in advance the control program executed by the control unit 10 and various data necessary for executing the control program. Further, the storage unit 11 temporarily stores data or the like generated when the control unit 10 executes the control program. The control program stored in the storage unit 11 includes the determination program P, which is the program of the present disclosure. The data stored in the storage unit 11 includes a reproduction image database (hereinafter, referred to as a reproduction image DB) described later. Reproduced images of a plurality of types of light modulation elements are registered in the reproduced image DB. Hereinafter, the reproduction image registered in the reproduction image DB, that is, the reproduction image of the true light modulation element is referred to as a correct reproduction image, and the reproduction image of the light modulation element of fake is referred to as a non-correct reproduction image. In the present embodiment, the storage unit 11 is a memory of a smartphone, but may be an external flash memory for a smartphone, a hard disk, an SSD (Solid State Drive), or the like.

The determination program P stored in the storage unit 11 may be provided by the recording medium M in which the determination program P is readablely recorded. The recording medium M is, for example, a portable memory such as an SD (Secure Digital) card, a micro SD card, or a compact flash (registered trademark). In this case, the control unit 10 reads the determination program P from the recording medium M using a reading device (not shown), and installs the read determination program P in the storage unit 11. Further, the determination program P stored in the storage unit 11 may be provided by communication via a communication unit (not shown). In this case, the control unit 10 acquires the determination program P through the communication unit, and installs the acquired determination program P in the storage unit 11.

The operation unit 12 receives an operation input by the user and outputs a control signal corresponding to the operation content to the control unit 10. The display unit 13 displays various information according to the instruction from the control unit 10. In the present embodiment, the operation unit 12 and the display unit 13 are touch panels configured as one, but may be configured separately. Further, the operation unit 12 may be, for example, an operation button provided on the smartphone body or a microphone for collecting a user's voice command.

The light source unit 14 is an LED light of a smartphone, and functions as a point light source for irradiating a light modulation element to make a light image emerge.

The image pickup unit 15 is a camera of a smartphone, and captures the light modulation element and the reproduced image of the light modulation element and stores them in the storage unit 11.

In the present embodiment, the determination program P, which is the program of the present disclosure, is installed on the smartphone, and the control unit 10 executes the determination program P, so that the smartphone operates as the authenticity determination device 1 of the present disclosure.

FIG. 2 is a schematic cross-sectional view showing an example of the light modulation element 2. The light modulation element 2 is attached to the object to be determined. Judgment objects include, for example, cards such as cash cards, credit cards, check cards, cash vouchers, identification cards, important documents, products such as branded products, or packaging of products. As shown in FIG. 2, the light modulation element 2 includes a hologram layer 21 having a reflective hologram structure 211, a base material 24 laminated on one surface of the hologram layer 21, and the other of the hologram layer 21. A reflective layer 22 laminated on the surface is provided. In the hologram structure 211, the other surface of the hologram layer 21 forms an uneven surface 21a, and the reflection layer 22 covering the uneven surface 21a also has an uneven shape. The uneven surface 21a of the hologram structure 211 has an uneven pattern corresponding to the Fourier transformed image of the original image, and has a corresponding uneven depth for each pixel of the Fourier transformed image. When light is incident on such a hologram structure 211 from a point light source, an optical image corresponding to the uneven pattern of the uneven surface 21a is reproduced.

FIG. 3 is a conceptual diagram in which the light modulation element 2 reproduces an optical image using the authenticity determination device 1 and captures an image. As shown in FIG. 3, when the light source unit 14 is arranged on the observation surface side, which is the surface side opposite to the reflection layer 22 of the hologram layer 21, the light source unit 14 is formed on the round outer frame 23 of the light modulation element 2. In the enclosed area, the character 23a of "OK" can be observed as a reproduced image.

In the authenticity determination device 1 of the present disclosure, the light modulation element 2 in which the reproduced image is generated is measured by the imaging unit 15 while changing the distance h between the authenticity determination device 1 and the light modulation element 2 (hereinafter referred to as the imaging distance h). The image is taken, and the authenticity is determined based on a plurality of images including the outer frame 23 obtained by the imaging and the character 23a of the reproduced image.

At the time of imaging, as shown in FIG. 3, the back surface of the authenticity determination device 1 provided with the imaging unit 15 faces the observation surface of the light modulation element 2 and is substantially parallel to the observation surface. Further, the imaging unit 15 is located directly above the formation region of the hologram structure 211. When an image is taken while moving the authenticity determination device 1 in the direction orthogonal to the observation surface of the light modulation element 2 while maintaining the above posture, the light modulation element 2 and a plurality of moving images related to the reproduced image thereof according to the change in the imaging distance h. A still image is obtained.

In the authenticity determination device 1, the control unit 10 displays an imaging support image on the display unit 13 in order to always image the imaging unit 15 at the same imaging angle at the time of imaging. FIG. 4 is a schematic view showing an example of a screen 100 showing an imaging support image. As shown in FIG. 4A, the target image 101 is displayed on the screen 100 as an imaging support image. The target image 101 includes three concentric arcs, which are three guide frames. The imaging support image is not limited to the target image 101, and may be appropriately set according to the shape of the outer frame image of the correct reproduced image. Further, the shape of each guide frame is not limited to the arc in one circle, and may be the entire circle. The number of guide frames is not limited to 3, and may be a number other than 3. Further, as shown in FIG. 4, a shutter button 102 for receiving a user's imaging instruction is displayed on the screen 100.

At the time of capturing a still image, the user adjusts the posture of the authenticity determination device 1 while looking at the screen 100, and when the outer frame 23 overlaps with one of the guide frames in the target image 101 on the screen 100, for example, clicks the shutter button 102. Take the first photo. Then, the authenticity determination device 1 is moved to change the imaging distance h. When the outer frame 23 overlaps with the other guide frame in the target image 101 on the screen 100, a second picture is taken.

At the time of video recording, the user adjusts the posture of the authenticity determination device 1 while looking at the screen 100, and when the outer frame 23 overlaps with one of the guide frames in the target image 101 on the screen 100, for example, clicks the shutter button 102. Start recording. Then, the authenticity determination device 1 is moved to change the imaging distance h. Recording ends when the outer frame 23 overlaps the other guide frame in the target image 101 on the screen 100.

In this way, at the time of imaging, the user always moves the image pickup unit 15 by moving the authenticity determination device 1 while confirming the positional relationship between the outer frame 23 on the screen 100 and each guide frame constituting the target image 101. Images can be taken at the same imaging angle.

At the time of imaging, the control unit 10 may display the operation procedure presentation information indicating that the authenticity determination device 1 is separated from the imaging target or that the authenticity determination device 1 is brought closer to the imaging target on the display unit 13. Further, the control unit 10 may display each guide frame in the target image 101 in a preset order. For example, at the time of capturing a still image, only the guide frame composed of the outermost arc of the target image 101 is displayed at the time of the first imaging, and the guide frame composed of the middle arc of the target image 101 is displayed at the time of the second imaging. Only is displayed, and only the guide frame composed of the innermost arc in the target image 101 is displayed at the time of the third imaging. As a result, a plurality of photographs whose imaging distance h gradually increases can be obtained, information processing of the control unit 10 becomes easy, and the ease and accuracy of the user's imaging operation are improved.

Before displaying the target image 101, as shown in FIG. 4B, the four corner frames 103 are displayed as the imaging guide means, and the information "Please insert the hologram in the frame" is displayed on the screen 100 as the operation procedure presentation information. It may be displayed. The image pickup guide means is not limited to the four-corner frame 103, and may have other shapes. When the user positions the light modulation element 2 on the screen 100 within the frame according to the operation procedure presentation information, the control unit 10 recognizes the reproduction image of the light modulation element 2 and stores the correct reproduction image in the reproduction image DB. It is determined whether or not it is. For example, when the control unit 10 determines that the reproduced image is not the correct reproduced image, the control unit 10 causes the display unit 13 to display information indicating that the determined object is a fake, but determines that the reproduced image is the correct reproduced image. If so, the target image 101 or one guide frame is displayed on the display unit 13.

FIG. 5 is a flowchart showing an example of a screen display procedure of the display unit 13 at the time of imaging.

When the imaging unit 15 is activated, the display unit 13 displays the four corner frames 103 and the operation procedure presentation information on the screen 100 as shown in FIG. 4B (step S101).

When the control unit 10 recognizes the reproduced image in the four corner frames 103 and determines that the reproduced image is the correct answer, the display unit 13 displays the first guide frame on the screen 100 (step S102). The control unit 10 outputs an imaging instruction to the imaging unit 15 when the outer frame 23 of the light modulation element 2 matches the first guide frame. Here, the imaging instruction may be an instruction to take a picture or an instruction to start recording. The image pickup unit 15 may take an image in response to an image pickup instruction from the user received via the shutter button 102 instead of the instruction from the control unit 10.

Then, the display unit 13 displays the operation procedure information to move the authenticity determination device 1 on the screen 100 (step S103), and displays the second guide frame different from the size of the first guide frame (step S104). The control unit 10 outputs an imaging instruction to the imaging unit 15 when the outer frame 23 of the light modulation element 2 matches the second guide frame. Here, the imaging instruction may be an instruction to take a picture or an instruction to stop recording. The image pickup unit 15 may take an image in response to an image pickup instruction from the user received via the shutter button 102 instead of the instruction from the control unit 10.

When the authenticity determination by the control unit 10 is completed, the display unit 13 displays the authenticity determination result on the screen 100 (step S105).

FIG. 6 is a conceptual diagram showing a change in the correct reproduced image according to a change in the imaging distance h. As shown in FIG. 6, as the authenticity determination device 1 moves away from the light modulation element 2, the character 23a becomes larger. That is, the larger the distance from the point light source, the larger the correct reproduction image. Further, FIG. 6 shows photographs 231, 232, and 233 of the correct reproduction images captured at the imaging distances h1, h2, and h3 (h1 <h2 <h3), respectively. As shown in FIG. 6, the larger the imaging distance h, the smaller the outer frame 23 (outer frame image) in the photograph, but the size of the character 23a (pattern image) in the photographs 231, 232, and 233 is the same. That is, the character 23a in the photograph of the correct reproduction image has a feature that the size does not change depending on the imaging distance h.

On the other hand, in the case of the non-correct reproduction image, the character 23a of "OK" can be observed, but the character 23a in the photograph does not have the above-mentioned characteristics of the correct reproduction image. FIG. 7 is a comparison diagram of photographs of the correct reproduction image and the non-correct reproduction image. As shown in FIG. 7, when the imaging distance h changes, both the character 23a and the outer frame 23 change in the photograph of the captured non-correct reproduction image. Specifically, in the non-correct reproduction image, when the imaging distance h becomes smaller, the characters 23a and the outer frame 23 in the photograph become larger, and when the imaging distance h becomes larger, the characters 23a and the outer frame in the photograph become larger. 23 is small. By such a difference, the correct reproduction image and the non-correct reproduction image can be distinguished.

FIG. 8 is a flowchart showing a procedure example of the authenticity determination process executed by the control unit 10. In the present embodiment, a predetermined number of photographs of the light modulation element 2 are taken, and the authenticity is determined based on these photographs.

The control unit 10 activates the light source unit 14 and the imaging unit 15 (step S1), and displays the imaging support image on the display unit 13 (step S2).

The control unit 10 determines whether or not the imaging instruction has been accepted (step S3), and if it determines that the imaging instruction has not been accepted (step S3: NO), waits until the imaging instruction is accepted.

When the control unit 10 determines that the imaging instruction has been received (step S3: YES), the control unit 10 controls the imaging unit 15 to perform imaging (step S4).

The control unit 10 performs pattern matching processing by extracting geometric shape information from the photograph captured in step S4 and calculating the similarity with the correct reproduced image stored in the reproduced image DB (step S5). ..

The control unit 10 determines whether or not the similarity between the reproduced image and the correct reproduced image in the photograph is equal to or higher than a predetermined value (step S6). Here, the predetermined value may be appropriately set in advance according to the characteristics of the geometric shape of the correct reproduced image.

When the control unit 10 determines that the similarity is not equal to or higher than a predetermined value (step S6: NO), the control unit 10 returns the process to step S2. In this case, it is preferable that the control unit 10 causes the display unit 13 to indicate that the photograph is not used for the measurement.

When the control unit 10 determines that the similarity is equal to or higher than a predetermined value (step S6: YES), the control unit 10 stores the photograph in the storage unit 11 (step S7).

The control unit 10 determines whether or not the number of photographs corresponding to the captured imaging distance has reached a predetermined number (step S8), and when it is determined that the number of photographs has not reached the predetermined number (step S8: NO). , The process returns to step S2. In this case, it is preferable that the control unit 10 causes the display unit to indicate that the authenticity determination device 1 is to be moved.

When the control unit 10 determines that the number of photographs has reached a predetermined number (step S8: YES), the control unit 10 turns off the light source unit 14 and the imaging unit 15 and reads out each photograph from the storage unit 11 (step S9). Recognize the character 23a and the outer frame 23 (step S10).

The control unit 10 calculates the size of the character 23a and the size of the outer frame 23 for each photograph (step S11). The size of the character 23a may be the length, width, height and line width of each character, or the area or number of pixels of the line constituting each character. The size of the outer frame 23 may be the diameter of a circle, the area, or the number of pixels. The size change of the character 23a and the size change of the outer frame 23 may be calculated by comparing a plurality of photographs.

The control unit 10 determines whether or not the size of the outer frame 23 has changed based on the size of the outer frame 23 calculated in step S11 (step S12).

When the control unit 10 determines that the size of the outer frame 23 has not changed (step S12: NO), the control unit 10 returns the process to step S2.

When the control unit 10 determines that the size of the outer frame 23 has changed (step S12: YES), the control unit 10 determines whether or not the size of the character 23a has changed (step S13).

When the control unit 10 determines that the size of the character 23a has not changed (step S13: NO), the control unit 10 outputs an instruction indicating that the determination target is true to the display unit 13 (step S14), and processes the process. To finish.

When the control unit 10 determines that the size of the character 23a has changed (step S13: YES), the control unit 10 outputs an instruction indicating that the determination target is a fake to the display unit 13 (step S15), and performs processing. finish.

In this way, the authenticity determination device 1 takes a plurality of photographs of the light modulation element 2 while changing the imaging distance h, and determines the authenticity of the determination object based on the presence or absence of a change in the character 23a in these photographs. can do.

In the above, an example of determining authenticity based on a plurality of still images related to the light modulation element 2 imaged while changing the imaging distance h has been described, but the light modulation element 2 imaged while changing the imaging distance h has been described. The authenticity may be determined based on the moving image. For example, a moving image of the light modulation element 2 may be imaged while changing the imaging distance h, a plurality of frames may be extracted from the moving image, and the authenticity may be determined based on the presence or absence of a change in the character 23a in these frames.

Further, in the embodiment, the change in the imaging distance h is determined based on the size change of the outer frame 23 of the light modulation element 2, but it may be determined based on the change in the focus of the imaging unit 15 or a smartphone. The determination may be made by measuring the distance from the light modulation element 2 with the optical sensor mounted on the light modulation element 2.

In the embodiment, the outer frame 23 of the light modulation element 2 is determined as a reference object, but another reference object may be provided in advance in the light modulation element 2 and the determination may be made based on the size change of the reference object.

A part of the processing executed by the control unit 10 may be executed by the cloud server. For example, when the authenticity determination device 1 takes an image with the imaging unit 15 and transmits the captured image to the cloud server, and the cloud server receives the image transmitted from the authenticity determination device 1, for example, the step shown in FIG. The process of steps S10 to S13 may be executed, and the determination result may be transmitted to the authenticity determination device 1.

The embodiments disclosed this time should be considered as exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of claims, not the above-mentioned meaning, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Authenticity judgment device 10 Control unit 100 Screen 101 Target image 102 Shutter button 103 Four corner frame 11 Storage unit 12 Operation unit 13 Display unit 14 Light source unit 15 Imaging unit 2 Light modulation element 21 Hologram layer 21a Concavo-convex surface 211 Hologram structure 22 Reflection layer 23 Outer frame 23a Characters 231, 232, 233 Photo 24 Base material h Imaging distance

Claims (9)

A program for determining the authenticity of an object to be determined, which is provided with a light modulation element that generates a reproduced image having a size corresponding to the distance from the point light source by the light from the point light source.
An image obtained by imaging the light modulation element in which the reproduced image is generated at a plurality of imaging distances is acquired, and the image is acquired.
The authenticity of the determination target object is determined based on the size change of the reproduced image in the acquired plurality of images, and the authenticity is determined.
A program characterized by having a computer execute a process that outputs the judgment result. The size of the reproduced image in the image and the reference object other than the reproduced image is calculated.
When the calculated size of the reproduced image does not change with the change of the imaging distance and the calculated size of the reference object changes with the change of the imaging distance, the computer performs a process of determining the determination target as true. The program according to claim 1, wherein the program is executed. The program according to claim 2, wherein a computer executes a process of calculating the size of the outer frame image of the light modulation element as the size of the reference object. The program according to any one of claims 1 to 3, wherein a computer executes a process of capturing a still image or a moving image of the light modulation element. The program according to any one of claims 1 to 4, wherein a computer executes a process of displaying an imaging support image for maintaining an imaging angle. A first guide frame for guiding the outer frame image is displayed,
When the outer frame image matches the first guide frame, the first image including the outer frame image and the reproduced image is acquired, and the first image is acquired.
Outputs information that the imaging distance should be changed,
A second guide frame having a size different from that of the first guide frame for guiding the outer frame image after changing the imaging distance is displayed.
When the outer frame image matches the second guide frame, a second image including the outer frame image and the reproduced image is acquired, and the second image is acquired.
It is characterized in that a computer is made to execute a process of determining authenticity by comparing the sizes of the outer frame image and the reproduced image of the first image with the sizes of the outer frame image and the reproduced image of the second image. The program according to claim 3. The program according to any one of claims 1 to 6, wherein a computer executes a process of determining a change in an imaging distance. This is an authenticity determination method for determining the authenticity of a determination object provided with a light modulation element that generates a reproduced image having a size corresponding to the distance from the point light source by the light from the point light source.
The computer
An image obtained by imaging the light modulation element in which the reproduced image is generated at a plurality of imaging distances is acquired, and the image is acquired.
The authenticity of the determination target object is determined based on the size change of the reproduced image in the acquired plurality of images, and the authenticity is determined.
An authenticity judgment method characterized by executing a process of outputting the judgment result. An authenticity determination device for determining the authenticity of a determination object provided with a light modulation element that generates a reproduced image having a size corresponding to the distance from the point light source by the light from the point light source.
An acquisition unit that acquires an image obtained by imaging the light modulation element in which the reproduced image is generated at a plurality of imaging distances, and an acquisition unit.
A determination unit that determines the authenticity of the determination object based on the size change of the reproduced image in the acquired plurality of images, and a determination unit.
An authenticity determination device including an output unit that outputs the determination result.

Images