Photography device and program

The photographing terminal uses focus and movement detection to guide alignment, ensuring all points are in focus, thereby simplifying and enhancing the convenience of identity verification through clear image capture.

JP7790188B2Active Publication Date: 2025-12-23DAI NIPPON PRINTING CO LTD
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Patent Information

Application Number
JP2022021296
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-15
Publication Date
2025-12-23
Estimated Expiration
2042-02-15

AI Technical Summary

Technical Problem

Existing methods for photographing identification cards for identity verification are inconvenient due to potential blurring and difficulty in aligning the card within the frame, which affects authentication accuracy.

Method used

A photographing terminal with a detecting mechanism to assess focus and movement, providing proximity or distance indications on the screen to guide proper alignment, ensuring all points are in focus before capturing the image.

Benefits of technology

Enhances the convenience of identity verification by simplifying the process of capturing a clear image of the identification card, improving authentication accuracy.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Abstract

To provide an imaging terminal etc. capable of enhancing convenience in personal identification.SOLUTION: A user terminal 5 is an imaging terminal for imaging an ID card. The user terminal 5 includes: calculation means 501 for calculating a focusing degree for a point in an imaging screen of the ID card; detection means 502 for detecting motion of the user terminal 5; and display means 503 for performing, on the basis of the focusing degree and the motion of the user terminal 5, regarding the point within the imaging screen, an approach display indicating that a part of the user terminal 5 corresponding to the point should get closer to the ID card, or a separation display indicating separation of the part of the user terminal 5 corresponding to the point from the ID card.SELECTED DRAWING: Figure 5
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Description

[Technical Field]

[0001] The present invention relates to a photographing terminal for photographing a personal identification card and a program therefor. [Background technology]

[0002] When opening an account at a financial institution, identification is required using an ID card (identification proof) such as a My Number card. In recent years, there has been an increase in cases where ID cards are forged or altered in order to open an account under the guise of another person for criminal purposes such as special fraud, and when verifying identity, it is necessary to be able to detect such forged or altered ID cards.

[0003] At typical financial institutions, users go to the institution to submit their ID card, and the financial institution then uses the submitted ID card to verify the user's identity in person. In this case, the person in charge can carefully observe the ID card and can detect any anomalies by touching the card.

[0004] Meanwhile, online financial institutions such as online banks have become commonplace recently. Some of these financial institutions verify the identity of a person by taking a photo of the face of an ID card with a camera on a smartphone or the like and sending the image to the financial institution. Patent Documents 1 and 2 disclose examples of methods for determining the authenticity of an ID card in such cases based on an image of the ID card taken with a camera on a smartphone or the like. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-068284 [Patent Document 2] Japanese Patent Application Publication No. 2020-177368 Summary of the Invention [Problem to be solved by the invention]

[0006] A prerequisite for determining the authenticity of an ID card is that the ID card is photographed properly. For example, if the ID card is not in focus, the image of the ID card will be blurred, which will cause problems in terms of the accuracy of the authentication.

[0007] Patent Document 1 describes a method for photographing an ID card, in which a photographing frame is displayed on the display of a smartphone or the like, and the user is prompted to place the ID card in the photographing frame, and then the ID card is photographed. If the smartphone or the ID card is positioned appropriately, the ID card will fit into the photographing frame and be in focus, but users may take time to fit the ID card into the photographing frame or may not be able to fit the ID card into the photographing frame properly, which is one factor that inhibits the convenience of identity verification.

[0008] The present invention has been made in view of the above problems, and aims to provide an imaging terminal etc. that can improve the convenience of identity verification. [Means for solving the problem]

[0009] The first invention for solving the above-mentioned problems is a photographing terminal for photographing an identification card, comprising: a detecting means for detecting a movement of the photographing terminal; Multiple Based on the focus degree calculated for the point and the movement of the photographing terminal, Multiple and a display means for displaying a proximity display indicating that the part of the photographing terminal corresponding to the point should be brought closer to the identification card, or a distance display indicating that the part of the photographing terminal corresponding to the point should be moved away from the identification card. The display means may display a close-up image only at some points or a far-away image only at some points depending on the focus level and the movement of the photographing terminal. This is a photographing terminal characterized by the above.

[0010] In the present invention, the above-mentioned indication of proximity and distance of points on the photographing screen indicates whether the part of the photographing terminal corresponding to the point on the photographing screen of the identification card should be moved closer to or further away from the identification card. The user can refer to this indication to adjust the position of the photographing terminal, correctly focus on the identification card, and take the photograph. This simplifies the acquisition of an image of the identification card and improves the convenience of identification verification.

[0011] When it is determined that the point in the photographic screen is in focus, it is desirable that the display means displays a focus indication indicating that the point is in focus. This allows the user to understand that the position of the part of the photographing terminal corresponding to the point should be maintained.

[0012] When it is determined that the point in the photographic screen is not in focus, it is desirable that the display means displays the approaching or the farther away display for the point. This allows the aforementioned approaching or farther away display to be given to points within the photographing screen that are not in focus, thereby helping to adjust the position of the photographing terminal.

[0013] The photographing terminal preferably has an acquisition means for acquiring an image of the identification card displayed on the photographing screen when it is determined that all points within the photographing screen are in focus. This allows obtaining an image in a fully in-focus state in which all points within the photographic screen are in focus.

[0014] It is desirable that the photographing terminal has an acquisition means for acquiring an image of the identification card displayed on the photographing screen, and a transmission means for transmitting the image of the identification card acquired by the acquisition means to an authenticity determination device that uses the image to determine the authenticity of the identification card. This makes it possible to build, via a network, an authenticity determination system that determines the authenticity of an identification card using an image of the identification card transmitted from the photographing terminal.

[0015] The second invention is a photographing terminal for photographing an identification card, which comprises a detecting means for detecting the movement of the photographing terminal, and a detecting means for detecting the movement of the photographing terminal within the photographing screen of the identification card. Multiple Based on the focus degree calculated for the point and the movement of the photographing terminal, Multiple and a display means for displaying a proximity display indicating that the part of the photographing terminal corresponding to the point should be brought closer to the identification card, or a distance display indicating that the part of the photographing terminal corresponding to the point should be moved away from the identification card. The display means may display a close-up image only at some points or a far-away image only at some points depending on the focus level and the movement of the photographing terminal. This is a program that functions as a photography terminal. [Effects of the Invention]

[0016] The present invention can provide an image capturing terminal or the like that can improve the convenience of personal identification. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 shows an authenticity determination system 1. [Figure 2] FIG. 2 is a diagram showing the hardware configuration of the authenticity determination device 3. [Figure 3] FIG. 2 is a diagram showing the hardware configuration of a user terminal 5. [Figure 4] 5 is a diagram illustrating the movement of the user terminal 5 detected by the sensor 58. FIG. [Figure 5] FIG. 2 is a block diagram showing the functions of a user terminal 5. [Figure 6] 3 is a flowchart showing an outline of the processing of the authenticity determination system 1. [Figure 7] 1A and 1B are diagrams for explaining photographing of an ID card 10. [Figure 8] 10 is a flowchart showing a procedure for photographing an ID card 10. [Figure 9] 10 is a flowchart showing a procedure for displaying a point 532. [Figure 10] FIG. 10 is a diagram for explaining a specific example of display of a point 532. [Figure 11] An example of the ID card 10 photo capture screen. [Figure 12] Another example of how point 532 looks. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[0019] (1. Authenticity Determination System 1) 1 is a diagram showing an authenticity determination system 1 including a user terminal 5 according to an embodiment of the photographing terminal of the present invention. The authenticity determination system 1 is configured by connecting an authenticity determination device 3 and a user terminal 5 so that they can communicate with each other via a network. In the authenticity determination system 1, an image of a user's ID card 10 photographed by the user terminal 5 is sent from the user terminal 5 to the authenticity determination device 3, and the authenticity determination device 3 determines the authenticity of the ID card 10 from the image.

[0020] The ID card 10 is an identity card that is the subject of authentication determination by the authenticity determination device 3. An identity card is a medium used for identity verification by financial institutions, mobile phone carriers, various administrative agencies, etc., and is a driver's license, My Number card, residence card, etc. The face of the ID card 10 has the user's facial image, name, address, date of birth, expiration date of the ID card 10, etc. printed on the face of the ID card 10 as face information (not shown).

[0021] 2 is a diagram showing the hardware configuration of the authenticity determination device 3. The authenticity determination device 3 can be realized by a computer configured by connecting a control unit 31, a storage unit 32, a communication unit 33, etc. via a bus or the like. However, the authenticity determination device 3 is not limited to this and various configurations can be used as appropriate, and it is also possible to realize the authenticity determination device 3 using multiple computers.

[0022] The control unit 31 is composed of a CPU, ROM, RAM, etc. The CPU loads programs related to the processing of the authenticity determination device 3 stored in storage media such as the memory unit 32 and ROM into a work area on the RAM and executes them. The ROM is a non-volatile memory that permanently stores programs such as the boot program and BIOS, as well as data. The RAM is a volatile memory that temporarily stores programs and data loaded from the memory unit 32, ROM, etc., and also has a work area that the control unit 31 uses to perform various processes.

[0023] The storage unit 32 is a hard disk drive, a solid state drive, a flash memory, or the like, and stores the programs executed by the authenticity determination device 3, data required for program execution, an OS, and the like.

[0024] The communication unit 33 is a communication interface that mediates communication via a network, and communicates with the user terminal 5 .

[0025] The user terminal 5 is a terminal carried by the user, which photographs the ID card 10, acquires the image, and transmits it to the authenticity determination device 3. The user terminal 5 functions as the photographing terminal of the present invention, and may be, for example, a mobile terminal such as a smartphone or a tablet terminal.

[0026] Fig. 3 is a diagram showing the hardware configuration of the user terminal 5. As shown in Fig. 3, the user terminal 5 is configured by connecting a control unit 51, a storage unit 52, a display unit 53, an input unit 54, a communication unit 55, a camera 56, an audio input / output unit 57, a sensor 58, etc. via a bus or the like. However, the configuration is not limited to this, and various other configurations may be used as appropriate.

[0027] The control unit 51, memory unit 52, and communication unit 55 are substantially the same as the control unit 31, memory unit 32, and communication unit 33 described above, and the memory unit 52 stores a dedicated application program for the user terminal 5 to perform the processing described below.

[0028] The display unit 53 has a display device such as a liquid crystal panel, and is provided with a touch panel as an input unit 54 for inputting information to the user terminal 5. The audio input / output unit 57 includes a microphone and a speaker used for inputting and outputting audio.

[0029] Camera 56 is an area camera that includes an optical lens, an imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor), an A / D (Analog / Digital) converter, etc. Camera 56 photoelectrically converts the subject image input through the optical lens using the imaging element to generate an analog image signal. The A / D converter then converts the analog image signal into digital image data.

[0030] The sensor 58 is an acceleration sensor or a gyro sensor provided in the user terminal 5, and detects the movement of the user terminal 5. In this embodiment, the sensor 58 can detect axial acceleration and angular velocity around two orthogonal axes (x-axis and y-axis) on the plane of the user terminal 5 and an axis (z-axis) orthogonal to these two axes, as shown in FIG.

[0031] 5 is a block diagram showing the functions of the user terminal 5. The user terminal 5 includes a calculation unit 501, a detection unit 502, a display unit 503, an acquisition unit 504, a transmission unit 505, and the like.

[0032] The calculation means 501 is a means by which the control unit 51 of the user terminal 5 calculates the degree of focus for a point within the photographed screen of the ID card 10. The above points and the degree of focus will be described later.

[0033] The detection means 502 is a means by which the control unit 51 of the user terminal 5 detects the movement of the user terminal 5 using the sensor 58 .

[0034] The display means 503 is used by the control unit 51 of the user terminal 5 to display whether the point on the photographing screen of the ID card 10 is approaching, moving away, or in focus, based on the focus level and the movement of the user terminal 5. These displays will be described later.

[0035] The acquisition means 504 is a means by which the control unit 51 of the user terminal 5 acquires the image of the ID card 10 displayed on the photographing screen of the ID card 10 .

[0036] The transmission means 505 transmits the image of the ID card 10 acquired by the acquisition means 504 by the control unit 51 of the user terminal 5 to the authenticity determination device 3 via the communication unit 55 .

[0037] (2. Overview of the processing of the authenticity determination system 1) Fig. 6 is a flowchart showing an outline of the processing executed by the authenticity determination system 1. S1 to S2 and S7 to S8 in Fig. 6 are processing executed by the control unit 51 of the user terminal 5 by controlling each unit of the user terminal 5, and S3 to S6 are processing executed by the control unit 31 of the authenticity determination device 3 by controlling each unit of the authenticity determination device 3.

[0038] In this embodiment, the user first operates the user terminal 5 to launch a dedicated application program pre-stored in the storage unit 52. The user terminal 5 then displays a menu screen (not shown) on the display unit 53, activates the camera 56 in accordance with the user's selection on the menu screen, and photographs the face of the ID card 10 (S1). Figure 7(a) is a diagram showing the photographing state at this time, in which the ID card 10 placed on a flat surface is photographed from above by the user terminal 5.

[0039] 7(b) is an example of the capture screen of the ID card 10. In this embodiment, when the camera is started, instructions are displayed on the display unit 53 of the user terminal 5 to prompt the user to fit the ID card 10 displayed in live view on the capture screen within a predetermined capture frame 531, and then the ID card 10 is captured.

[0040] Reference numeral 532 in FIG. 7(b) denotes a point for determining the degree of focus, and multiple points 532 are displayed within the shooting screen. In this embodiment, the positions of the points 532 are set at five locations within the shooting screen: upper left, lower left, upper right, lower right, and center. In this embodiment, the display mode of each point 532 is changed according to the degree of focus and the movement of the user terminal 5, making it easier for the user to focus on the ID card 10 and take a photo, improving the convenience of identity verification. The method will be described in detail later.

[0041] Returning to the explanation of Figure 6, the user terminal 5 photographs the ID card 10 and transmits the image obtained to the authenticity determination device 3 (S2). The authenticity determination device 3 receives the image of the ID card 10 (S3) and determines the authenticity of the ID card 10 using the image of the ID card 10 (S4). There is no particular restriction on the specific method for determining authenticity, and the methods described in Patent Documents 1 and 2, for example, can be used.

[0042] If the authenticity determination device 3 determines that the ID card 10 is fake (S5; NO), it transmits a message to the user terminal 5 that the ID card 10 is fake (S6). When the user terminal 5 receives a message that the ID card 10 is fake (S7), it displays this message on the display unit 53 (S8) and ends the process.

[0043] On the other hand, if the authenticity determination device 3 determines that the ID card 10 is authentic (S5; YES), it completes the authenticity determination process. For example, when authenticity determination is performed as identity verification when opening an account at a financial institution on the Internet, after the authenticity determination process, user information (such as name and date of birth) on the face of the ID card 10 can be obtained from an image of the ID card 10 as information required to open the account, and the user information can be registered and stored in the memory unit 32.

[0044] (3. Photographing ID card 10) Fig. 8 is a flowchart showing the procedure for photographing the ID card 10 in S1 of Fig. 6. In S1, after starting photographing, the user terminal 5 first calculates and acquires the focus level of each point 532 on the photographed screen for the image of the ID card 10 captured by the camera 56 (S11).

[0045] The degree of focus is a value indicating the degree to which the camera 56 is in focus at point 532 in the photographic image, and can be calculated using known methods described in Patent Publication No. 2010-91856, Patent Publication No. 2003-274258, etc., based on the sharpness of the edges of the areas corresponding to each point 532 in the image of the ID card 10 captured by the camera 56.

[0046] The user terminal 5 compares the focus level of each point 532 with a predetermined threshold value, and if the focus level of all points 532 in the shooting screen is equal to or greater than the threshold value, it determines that all points 532 in the shooting screen are in focus (S12; YES), acquires the image of the ID card 10 displayed on the shooting screen at that time as a still image (S13), and terminates the processing.

[0047] On the other hand, if the focus level of any of the points 532 is less than the threshold, the user terminal 5 determines that the point 532 in the shooting screen is not in focus (S12; NO), and displays the point 532 according to the focus level and the movement of the user terminal 5 (S14), thereby assisting the user in adjusting the focus, and repeats the determination of S12. The method of displaying the point 532 in S14 will be described later.

[0048] The image acquired in S13 is transmitted to the authenticity determination device 3 (see S2 in FIG. 6), and the image is used to determine the authenticity of the ID card 10. Note that before acquiring the image of the ID card 10 in S13, it is also possible to acquire the image after confirmation by the user by displaying a confirmation button (not shown) on the display unit 53, for example.

[0049] (4. Display of point 532) FIG. 9 is a flowchart showing the procedure for displaying the point 532 in S14 of FIG.

[0050] In S14, the user terminal 5 first detects the movement of the user terminal 5 using the sensor 58 (S140). As described above, the sensor 58 is an acceleration sensor or a gyro sensor, and can detect the movement of the user terminal 5 based on the acceleration in the three-axis directions shown in FIG. 4 and the angular velocity around each axis.

[0051] Next, the user terminal 5 recalculates and acquires the focus level of each point 532 on the captured image of the ID card 10 captured by the camera 56 (S141). Then, for points 532 whose focus level is equal to or greater than the threshold, the user terminal 5 determines that the points 532 are in focus (S142; YES), and displays a focus indication indicating that the points 532 are in focus (S143).

[0052] On the other hand, for points 532 whose focus level is less than the threshold, it is determined that the points are not in focus (S142; NO), and the display mode of the points 532 is determined based on the focus level of the points 532 and the movement of the user terminal 5.

[0053] First, the user terminal 5 compares the focus degree of the out-of-focus point 532 with the previously calculated focus degree of the same point 532. Then, it determines whether the focus degree has improved, that is, whether the focus degree has approached the threshold value (S144).

[0054] If the focus level improves (S144; YES), the user terminal 5 determines, based on the movement of the user terminal 5 detected in S140, whether the part of the user terminal 5 corresponding to the point 532 has descended and approached the ID card 10 (S145).

[0055] If the part of the user terminal 5 corresponding to the point 532 descends and approaches the ID card 10 (S145; YES), the user terminal 5 displays an approach indication regarding the point 532, indicating that the part of the user terminal 5 corresponding to the point 532 should be lowered as is to approach the ID card 10 (S146).

[0056] On the other hand, if the part of the user terminal 5 corresponding to the point 532 has risen and moved away from the ID card 10 (S145; NO), the user terminal 5 displays a distance indication indicating that the part of the user terminal 5 corresponding to the point 532 should be raised as is and moved away from the ID card 10 (S147).

[0057] If the focus of point 532 has improved, by displaying point 532 as described above, the user can understand that he or she should continue his or her current movement with respect to the part of the user terminal 5 corresponding to point 532.

[0058] In contrast, if the degree of focus of an out-of-focus point 532 has worsened compared to the degree of focus of the same point 532 calculated last time (S144; NO), the user terminal 5 determines, as in S145 above, from the movement of the user terminal 5 detected in S140 whether the part of the user terminal 5 corresponding to the point 532 has descended and approached the ID card 10 (S148).

[0059] Then, when the part of the user terminal 5 corresponding to the point 532 moves down and approaches the ID card 10 (S148; YES), the user terminal 5 displays a distance indication for the point 532 (S147).

[0060] On the other hand, if the part of the user terminal 5 corresponding to the point 532 has risen and moved away from the ID card 10 (S148; NO), the user terminal 5 displays an approaching indication for the point 532 (S146).

[0061] If the focus of point 532 deteriorates, by displaying point 532 as described above, the user can understand that he or she should make the opposite movement to the current movement with respect to the part of the user terminal 5 corresponding to point 532.

[0062] The user terminal 5 repeats the above-mentioned processing of S142 to S148 until it has executed the processing of S142 to S148 for all points 532 (S149; NO), and when it has executed the processing of S142 to S148 for all points 532 (S149; YES), it ends the display processing of points 532 and proceeds to the judgment of S12 (see Figure 8).

[0063] Fig. 10 is a diagram illustrating a specific example of the display of the above-mentioned points 532. For example, let us assume that the focus degrees of each point 532 calculated in S11 (see Fig. 8) are "upper left: 1.3, lower left: 1.3, upper right: 0.5, lower right: 0.4, center: 0.8" as shown in Fig. 10(a) with the threshold value set to 1.0, and thereafter, the user rotates the user terminal 5 clockwise as shown by arrow d around the position indicated by symbol C as shown in Fig. 10(b), and the focus degrees calculated in S141 become "upper left: 1.2, lower left: 1.2, upper right: 0.6, lower right: 0.5, center: 0.9" as shown in Fig. 10(c).

[0064] In this case, the focus level of the upper left and lower left points 532 is equal to or greater than the threshold value, so the points 532 are displayed in the first color as a focus indication (S142; YES, S143).

[0065] The focus levels of the upper right, lower right, and center points 532 are below the threshold, but are improved compared to the focus levels in Fig. 10(a). At this time, if it is detected that the parts of the user terminal 5 corresponding to these points 532 have descended and approached the ID card 10 due to the rotation of the user terminal 5 shown in Fig. 10(b), these points 532 are displayed in the second color as an approach indication, as shown in Fig. 10(c) (S142; NO, S144; YES, S145; YES, S146).

[0066] On the other hand, suppose the focus degree calculated in S11 is the value shown in Figure 10(a), and then the user rotates the user terminal 5 counterclockwise as indicated by arrow d' around position C as shown in Figure 10(d), resulting in the focus degrees calculated in S141 becoming "top left: 1.4, bottom left: 1.4, top right: 0.4, bottom right: 0.3, center: 0.7" as shown in Figure 10(e).

[0067] The focus levels of the upper right, lower right, and center points 532 are below the threshold, and are worse than the focus levels in Fig. 10(a). In this case, if it is detected that the portions of the user terminal 5 corresponding to these points 532 have risen and moved away from the ID card 10 due to the rotation of the user terminal 5 shown in Fig. 10(d), these points 532 are displayed in the second color as a proximity indication, as shown in Fig. 10(e) (S142; NO, S144; NO, S148; NO, S146).

[0068] Figure 10 shows the in-focus display (S143) and approach display (S146) of point 532, but in the case where the part of the user terminal 5 corresponding to point 532 should be moved away from the ID card 10 (S147), the point 532 is displayed in a third color as a distance display, as shown for points 532 in the upper left, lower left, and center of Figure 11(a).

[0069] The first color of the in-focus indication, the second color of the approaching indication, and the third color of the separating indication are different from one another, and the user adjusts the position of the user terminal 5 while checking the display of each point 532 on the shooting screen, until the image of the ID card 10 on the shooting screen is fully in focus (YES in S12 of FIG. 8). FIG. 11(b) is a diagram showing the shooting screen at this time, with the in-focus indication displayed for all points 532, and the ID card 10 fitting snugly within the shooting frame 531.

[0070] As described above, in this embodiment, the approach / distant display of point 532 on the shooting screen indicates whether the part of the user terminal 5 corresponding to point 532 should be moved closer to or further away from the ID card 10 on the shooting screen of the ID card 10. The user can refer to this display to adjust the position of the user terminal 5, correctly focus on the ID card 10, and take a photo. This simplifies image capture of the ID card 10, improving the convenience of identity verification.

[0071] In this embodiment, in the above-mentioned S142 (see FIG. 9), it is determined whether or not point 532 in the shooting screen is in focus, and if it is in focus, an in-focus display is displayed for that point 532, so that the user can understand that the position of the part of the user terminal 5 corresponding to that point 532 should be maintained. For other points 532 that are not in focus, an approaching display or a farther away display is displayed, which can help adjust the position of the user terminal 5.

[0072] In addition, in this embodiment, if it is determined in S12 (see Figure 8) that all of the points 532 in the shooting screen are in focus, an image of the ID card 10 displayed on the shooting screen is acquired, thereby obtaining an image in a fully in-focus state in which all of the points 532 in the shooting screen are in focus.

[0073] In this embodiment, the authenticity determination system 1 that determines the authenticity of the ID card 10 from an image of the ID card 10 transmitted from the user terminal 5 can be constructed using a network.

[0074] However, the present invention is not limited to the above-described embodiment. For example, in the present embodiment, an image of the ID card 10 is acquired during identity verification for opening an account, but the purpose of identity verification is not particularly limited.

[0075] Furthermore, the approaching, separating, and in-focus indications are not limited to those based on differences in the colors of the point 532 as described above, and may be any indication that the three can be distinguished. For example, as shown in Fig. 12, the three can be distinguished by the shape of the point 532, or by changes in the point 532 over time (for example, whether it blinks or not).

[0076] In this embodiment, the ID card 10 is photographed from above using the user terminal 5 while it is placed on a flat surface as shown in Fig. 7(a), but the positions of the ID card 10 and the user terminal 5 during photography are not limited to this. For example, even when the ID card 10 is placed upright and photographed from the side using the user terminal 5, the relative positional relationship between the ID card 10 and the user terminal 5 remains the same as in Fig. 7(a), and the same procedure as described above can be executed.

[0077] Furthermore, the number and arrangement of points 532 within the shooting screen are not limited to the example of Fig. 7(b). However, from the perspective of adjusting the position of the user terminal 5 based on the display of each point 532, the arrangement of Fig. 7(b) is rational, and the number of points 532 can be reduced.

[0078] In this embodiment, the acquisition of an image of the ID card 10 is assisted by displaying the approaching, farther away, and in-focus indications for each point 532 in the photographing screen, but audio support can also be provided in addition to this. For example, if any of the points 532 in the photographing screen are not in focus, or if any of the points 532 in the photographing screen are displaying an approaching or farther away indication, a message indicating this can be output by audio.

[0079] In this embodiment, the processes of S11 and S12 in FIG. 8 and S141, S142, S144, S145, S148, and S149 in FIG. 9 are performed by the user terminal 5. However, depending on the communication environment, these processes can also be performed by a server (not shown). In this case, the user terminal 5 transmits to the server an image of the ID card 10 captured by the camera 56 and information on the movement of the user terminal 5 detected by the sensor 58 to perform these processes. The user terminal 5 displays the approaching, distant, or focused state of each point 532 depending on the determination results of S142, S144, S145, and S148, and acquires the image of the ID card 10 displayed on the shooting screen as a still image depending on the determination result of S12. The authenticity determination device 3 can also be used as the server.

[0080] In addition, in this embodiment, the authenticity of the ID card 10 is determined by the authenticity determination device 3, but it is also possible to perform the authenticity determination by the user terminal 5, in which case there is no need to send an image of the ID card 10 from the user terminal 5 to the authenticity determination device 3 (S2 in Figure 6).

[0081] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to these examples. It is clear that those skilled in the art can conceive of various modifications or alterations within the scope of the technical ideas disclosed herein, and it is understood that these modifications also fall within the technical scope of the present invention. [Explanation of symbols]

[0082] 1: Authenticity determination system 3: Authenticity determination device 5: User terminal 10: ID card 501: Calculation method 502: Detection means 503:Display means 504: Acquisition method 505: Transmission method 531: Shooting frame 532: Points

Claims

1. A photographing terminal for photographing an identification card, a detection means for detecting the movement of the photographing terminal; a display means for displaying, based on the degree of focus calculated for a plurality of points within the photographed screen of the identification card and the movement of the photographing terminal, a close display indicating that the portion of the photographing terminal corresponding to the plurality of points within the photographed screen should be brought closer to the identification card, or a far display indicating that the portion of the photographing terminal corresponding to the plurality of points should be moved away from the identification card; and The photographing terminal is characterized in that the display means may display a close-up image at only some points or a far-away image at only some points depending on the focus level and the movement of the photographing terminal.

2. 2. The photographing terminal according to claim 1, wherein, when it is determined that the point in the photographing screen is in focus, the display means displays a focus indication indicating that the point is in focus.

3. The photographing terminal according to claim 1 or 2, wherein the display means, when it is determined that the point in the photographing screen is not in focus, displays the approaching display or the farther away display for the point.

4. The photographing terminal according to any one of claims 1 to 3, characterized in that the photographing terminal has an acquisition means for acquiring an image of the identification card displayed on the photographing screen when it is determined that all points within the photographing screen are in focus.

5. The photographing terminal an acquisition means for acquiring an image of the identification card displayed on the photographing screen; a transmitting means for transmitting the image of the identification card acquired by the acquiring means to an authenticity determining device that determines the authenticity of the identification card using the image; 5. The photographing terminal according to claim 1, further comprising:

6. The device that takes a photo of your ID card is a detection means for detecting the movement of the photographing terminal; a display means for displaying, based on the degree of focus calculated for a plurality of points within the photographed screen of the identification card and the movement of the photographing terminal, a close display indicating that the portion of the photographing terminal corresponding to the plurality of points within the photographed screen should be brought closer to the identification card, or a far display indicating that the portion of the photographing terminal corresponding to the plurality of points should be moved away from the identification card; and A program for functioning as a photographing terminal, characterized in that the display means may display a close-up image at only some points or a far-away image at only some points depending on the focus level and the movement of the photographing terminal.

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