JP7596801B2 - Authenticity determination device and program - Google Patents

Description

The present invention relates to an authenticity determination device and a program therefor.

Financial institutions require identification such as a driver's license when opening an account, but there has been an increase in cases of people forging driver's licenses and other documents to open accounts under the guise of a different person for criminal purposes such as special fraud.

Therefore, there is a demand for technology to determine whether such counterfeits have been detected. For example, Patent Document 1 describes an authenticity determination device that determines whether a driver's license or other document is authentic by determining whether there are inconsistencies in the text information on the face of the card.

JP 2019-209603 A

The authenticity determination device of Patent Document 1 can detect driver's licenses and other documents with forged faces, but in recent years, in light of the increasing strictness of identity verification, there has been a demand for technology that can more reliably determine the authenticity of driver's licenses and detect forgeries.

The present invention was made in consideration of the above problems, and aims to provide an authenticity determination device etc. that can more reliably determine the authenticity of driver's licenses.

The first invention for solving the above-mentioned problems is an authenticity determination device for a driver's license, comprising: a comparison means for comparing whether IC chip information obtained from the IC chip of the driver's license matches character information on the face of the driver's license obtained from an image of the driver's license; and a discrimination means for discriminating whether or not there is a contradiction between the content of the character information on the face of the driver's license obtained from the image of the driver's license and the content of other character information on the face of the driver's license obtained from the image of the driver's license, wherein the discrimination means extracts the band color of the expiration date, which is the character information on the face of the license, from the image, and determines that there is a contradiction if the year of the expiration date is not within a predetermined range based on the date of issue and the band color, which are other character information on the face of the license .
The discrimination means, for example, discriminates between a plurality of discrimination items, and the discrimination means further discriminates whether or not there is a contradiction between the contents of character information on the face of the driver's license obtained from an image of the driver's license and the attributes of the character information on the driver's license , and as the discrimination, it is preferable that there is a contradiction when the license number, which is the character information that should be written as a number of a predetermined number of digits on the driver's license, is not a number of the predetermined number of digits . It is also preferable that the discrimination means further compares the date of birth, which is the character information on the face of the card, with the license type, which is another character information on the face of the card, and discriminates whether or not there is a contradiction between the date of birth and the license type.

In the present invention, the authenticity of a driver's license is determined by comparing the IC chip information with the text information on the face of the driver's license and determining whether there is a contradiction in the text information on the face of the driver's license. By determining the authenticity based on these results, the authenticity of the driver's license can be determined more reliably.

The text information used to determine authenticity indicates, for example, a specific date, and the authenticity of the driver's license can be appropriately determined based on whether its contents match the IC chip information or whether there is a contradiction. Inconsistencies in text information can be broadly divided into cases where there is a contradiction between the contents of one piece of text information and the contents of another piece of text information, and cases where there is a contradiction between the contents of one piece of text information and the attributes of that piece of text information, but the present invention can determine that both cases are contradictions.

When the IC chip of the driver's license cannot be read, the authenticity determining device determines that the matching result by the matching means is inaccurate, and can determine the authenticity of the driver's license from the discrimination result by the discrimination means.
If the IC chip cannot be read, the possibility that the driver's license is genuine but the IC chip is simply broken should be considered. The driver's license should not be deemed invalid simply because the IC chip cannot be read; authenticity can be determined by also taking into account whether there are any inconsistencies in the text information on the face of the card.

The authenticity determination device can determine that the driver's license is not genuine if the comparison means determines that the IC chip information and the character information do not match, or if the discrimination means determines that there is a contradiction.
The authenticity determination device can make a more reliable determination by determining that the driver's license is not genuine if a negative result is obtained by either the comparison means or the discrimination means.

The IC chip information is information that can be read without inputting a password, for example.
This eliminates the need to enter a personal identification number (PIN) to read the IC chip information, simplifying the process of determining authenticity.

The second invention is a program for causing a computer to function as an authenticity determination device for a driver's license, comprising a comparison means for comparing whether IC chip information obtained from the IC chip of the driver's license matches character information on the face of the driver's license obtained from an image of the driver's license, and a discrimination means for discriminating whether there is a contradiction between the content of the character information on the face of the driver's license obtained from the image of the driver's license and the content of other character information on the face of the driver's license obtained from the image of the driver's license, wherein the discrimination means extracts the band color of the expiration date, which is the character information on the face of the license, from the image, and determines that there is a contradiction if the year of the expiration date is not within a predetermined range based on the date of issue and the band color, which are other character information on the face of the license .

The present invention provides an authenticity determination device that can more reliably determine the authenticity of driver's licenses.

FIG. 1 shows an authenticity determination system 1. FIG. 2 is a diagram showing the hardware configuration of an authenticity determination device 3. FIG. 1 shows a driver's license 10. FIG. 2 is a diagram showing the functional configuration of an authenticity determination device 3. 11 is a flowchart showing an authenticity determining method. 11A and 11B are diagrams for explaining determination of the presence or absence of a contradiction in character information.

The following describes in detail a preferred embodiment of the present invention with reference to the drawings.

(1. Authenticity Determination System 1)
Fig. 1 is a diagram showing an authenticity determination system 1 having an authenticity determination device 3 according to an embodiment of the present invention. As shown in Fig. 1, the authenticity determination system 1 has a reading device 2 and an authenticity determination device 3. The reading device 2 and the authenticity determination device 3 are communicatively connected by wireless or wired communication means.

The reading device 2 reads the driver's license 10 and has a scanner 21 and an IC chip reading unit 22.

The scanner 21 captures an image of the face of the driver's license 10, and may be, for example, a known scanning device.

The IC chip reader 22 reads the data stored in the IC chip (not shown) of the driver's license 10, and can be, for example, a known reader/writer.

In this embodiment, the scanner 21 and the IC chip reading unit 22 are configured as an integrated device, but they may be configured as separate devices. It is also possible to use a camera or the like to capture an image of the face of the driver's license 10.

The authenticity determination device 3 determines the authenticity of the driver's license 10 based on the face image of the driver's license 10, etc. Figure 2 is a diagram showing the hardware configuration of the authenticity determination device 3, and the authenticity determination device 3 can be realized by a computer configured by connecting a control unit 31, a memory unit 32, a display unit 33, an input unit 34, a communication control unit 35, 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.

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, and permanently stores programs such as the boot program and BIOS, as well as data. The RAM is a volatile memory, and 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.

The storage unit 32 is a hard disk drive, solid state drive, flash memory, etc., and stores the programs executed by the authenticity determination device 3 during the processing described below, data necessary for program execution, the OS, etc. These programs and data are read and executed by the control unit 31 as necessary.

The display unit 33 includes a liquid crystal display or the like.
The input unit 34 is used to input various information to the authenticity determination device 3 .
The communication control unit 35 is a communication interface that mediates communication, and performs communication with the reading device 2 .

(2. Driver’s License 10)
The driver's license 10 is an identification card that is the subject of authenticity determination in this embodiment, and is used for identity verification by financial institutions, mobile phone carriers, and the like.

Figure 3 shows an example of the face of a driver's license 10. On the face of the driver's license 10, text information such as the driver's name 11, date of birth 12, address 13, date of issue of the driver's license 14, expiration date 15, the type of license 16 under which the driver obtained the driver's license and the date of acquisition 17, the name of the prefectural public safety commission that issued the driver's license 10 18, and license number 19 are each printed in a predetermined position.

Driver's license 10 also has a built-in IC chip (not shown), which stores some of the text information on the face of the card as data. To read the data, a PIN must be entered as a personal identification number, but the IC chip also stores data that can be read without entering a PIN, such as the expiration date and issue date of driver's license 10.

(3. Functions of Authenticity Determination Device 3)
4 is a diagram showing a functional configuration of the authenticity determination device 3. The authenticity determination device 3 includes a comparison unit 301, a discrimination unit 302, and the like.

The comparison means 301 is a means for the control unit 31 of the authenticity determination device 3 to compare whether the IC chip information obtained from the IC chip of the driver's license 10 matches the character information obtained from the face image of the driver's license 10.

The discrimination means 302 is a means for discriminating whether or not the character information obtained by the control unit 31 of the authenticity determination device 3 from the face image of the driver's license 10 contains any inconsistencies. The details will be described later.

(4. Authenticity Determination Method)
Fig. 5 is a flowchart showing the authenticity determination method executed by the authenticity determination device 3. S1 to S2, S5 to S6, and S9 in Fig. 5 are processes executed by the reading device 2, and the other processes are executed by the control unit 31 of the authenticity determination device 3 by controlling each part of the authenticity determination device 3. The process in Fig. 5 is started, for example, by setting the driver's license 10 in a specified position of the reading device 2 and transmitting an instruction to start processing from the authenticity determination device 3 to the reading device 2.

In this embodiment, the reading device 2 first acquires an image of the face of the driver's license 10 using the scanner 21 (S1), and then transmits the image of the face of the driver's license 10 to the authenticity determination device 3 (S2).

When the authenticity determination device 3 receives the face image of the driver's license 10 (S3), it performs OCR (Optical Character Recognition) processing on the face image (S4) and obtains character information required for authenticity determination, such as the issue date 14 and expiration date 15, as character information on the face of the driver's license 10. Since OCR processing is known, its explanation is omitted.

The reading device 2 further reads the data (IC chip information) on the IC chip of the driver's license 10 using the IC chip reading unit 22. If the reading device 2 can read the data on the IC chip (S5; YES), it transmits the read data to the authenticity determination device 3 (S6). In this embodiment, data on the issue date and expiration date of the driver's license 10, which can be read without entering a PIN, is read from the IC chip and transmitted to the authenticity determination device 3.

When the authenticity determination device 3 receives the IC chip data from the reading device 2 (S7), it compares the IC chip data with the text information on the face of the card obtained in S4 (S8).

In S8, the authenticity determination device 3 compares the issue date of the driver's license 10 read as data from the IC chip with the issue date 14 of the driver's license 10 obtained as character information on the face from the face image of the driver's license 10. It also compares the expiration date of the driver's license 10 read as data from the IC chip with the expiration date 15 of the driver's license 10 obtained as character information on the face from the face image of the driver's license 10.

If the reading device 2 is unable to read the data on the IC chip (S5; NO), it transmits a message to the authenticity determination device 3 indicating that the data could not be read (S9), and the authenticity determination device 3 receives this message (S10).

If the comparison in S8 above shows that either the issue date or the expiration date of the driver's license 10 do not match, the authenticity determination device 3 determines that the comparison result is a mismatch (NO) (S11; NO), and displays a message on the display unit 33 that the driver's license 10 is not authentic (S12).

In addition, if the comparison in S8 above shows that both the issue date and expiration date of the driver's license 10 match, the authenticity determination device 3 determines that the comparison result is a match (YES) (S11; YES), and determines whether there is a contradiction in the text information on the face of the driver's license 10 (S13).

If the authenticity determination device 3 is unable to read the data on the IC chip, it determines that the comparison result is unmatched (S11; unmatched), and in this case, it also determines whether there is a contradiction in the text information on the face of the driver's license 10 (S13).

Details of S13 will be described later. If the authenticity determination device 3 determines in S13 that the text information on the face of the card contains a contradiction (S14; YES), it determines that the driver's license 10 is not authentic, displays that fact on the display unit 33, and ends the process (S12).

On the other hand, if the authenticity determination device 3 determines in S13 that there is no inconsistency in the text information on the face of the card (S14; NO), it determines that the driver's license 10 is authentic, displays this fact on the display unit 33, and ends the process (S15).

In this embodiment, the authenticity of the driver's license 10 can be determined from both the comparison result in S11 and the discrimination result in S14 in the manner described above. The person in charge can check the authenticity determination result displayed on the display unit 33 and decide on the subsequent processing.

(5. Determining whether the text information on the card contains inconsistencies)
In the above-mentioned S13, it is determined whether or not the character information obtained from the card face image has a contradiction. The contradiction in the character information can be broadly divided into a case where there is a contradiction between the content of one piece of character information and the content of another piece of character information, and a case where there is a contradiction between the content of the character information and the attribute of the character information in the driver's license 10. In the former case, it can be determined that there is a contradiction when the content of one piece of character information is not within a predetermined value or range corresponding to the content of the other piece of character information, and in the latter case, it can be determined that there is a contradiction when the content of the character information is not within a predetermined value or range corresponding to the attribute of the character information.

(5-1. Cases where there is a contradiction between the content of text information and the content of other text information)
An example of a case in which there is a contradiction between the content of one character piece and the content of another character piece is when a predetermined relationship determined from legal or other standpoint exists between the issue date 14 and the expiration date 15, and when viewed from that relationship, there is a contradiction between the issue date 14 and the expiration date 15 obtained from the card face image.

For example, as shown in FIG. 6(a), assume that the year of the expiration date 15 of the driver's license 10 falls within a range of two years to six years after the issue date 14. In this case, if the issue date 14 or expiration date 15 of the driver's license 10 is forged, causing the year of the expiration date 15 to fall outside the above range, it is determined that there is a discrepancy in content between the issue date 14 and the expiration date 15. Note that the above range differs depending on the band color (background color, e.g. blue or gold) of the expiration date 15, so the authenticity determination device 3 extracts the band color from the face image of the driver's license 10 as necessary.

As shown in FIG. 6(b), assume that the month of expiration date 15 of driver's license 10 is one month after the month of date of birth 12. In this case, if the date of birth 12 or expiration date 15 of driver's license 10 is forged, causing the month of expiration date 15 to fall outside the above-mentioned relationship, it will be determined that there is a discrepancy between date of birth 12 and expiration date 15.

The above is an example of comparing text information indicating specific dates, but this is not limiting, and other text information may be used for the comparison. For example, the date of birth 12 obtained from the face image of the card can be compared with the exemption type 16 to determine whether there is a discrepancy between their contents. In this case, the authenticity determination device 3 obtains the person's current age from the date of birth 12, and if the age is not within a predetermined range according to the contents of the exemption type 16, it determines that there is a discrepancy between the date of birth 12 and the exemption type 16.

For example, if the contents of license type 16 include a medium-sized vehicle license, the age calculated from date of birth 12 must be 18 years or older (because legally, a medium-sized vehicle license can only be obtained by someone 18 years or older), and if the age calculated from date of birth 12 is not within that range, there will be a contradiction.

(3-2. Cases where there is a contradiction between the content of the character information and the attributes of the character information on the driver's license 10)
An example of a case in which there is a contradiction between the content of the character information and the attributes of the character information on the driver's license 10 is when the content of the date of birth 12 obtained from the card face image contradicts the attribute (indicating the date of birth of the holder of the driver's license 10).

As an example, if the date of birth 12 is an impossible date, such as "1985," "March," or "April 31," it is determined that there is a discrepancy in the content. The same is true for the issue date 14, expiration date 15, acquisition date 17, etc. of the driver's license 10; appropriate value ranges for dates (for example, Showa 1 to 1989, month 1 to 12, April 1 to 30, etc.) are recorded in advance in the memory unit 32 of the authenticity determination device 3, and the presence or absence of a discrepancy can be determined by referring to these ranges. Furthermore, it can also be determined that there is a discrepancy if the current age calculated from the date of birth 12 is too young to be considered a normal holder of the driver's license 10.

In addition, if the issue date 14 is a date on which the driver's license 10 was not actually issued, for example, a certain period during the New Year holidays or a Saturday, it is determined that there is a contradiction between the content of the issue date 14 and its attribute (the date on which the driver's license 10 was issued). The authenticity determination device 3 records the dates on which the driver's license 10 was not issued in advance in the memory unit 32, and can refer to this to determine whether or not there is a contradiction.

In other cases, such as when the number of digits in license number 19 is not a specified value (for example, 12 digits), it can be determined that there is a contradiction between the contents of license number 19 and its attributes (being a number with a specified number of digits).

The determination of inconsistency described in 3-2 above may be used in conjunction with the determination of inconsistency described in 3-1 above. For example, it is possible to determine whether there is an inconsistency in the attributes of the date of birth 12 obtained from the card face image, and to determine whether there is an inconsistency in the contents of other text information such as the expiration date 15.

In S13, the above-described discrimination method is executed for one or more discrimination items, and the presence or absence of a contradiction in the text information can be determined from the result. When discrimination is performed for multiple discrimination items, the driver's license 10 can be determined to be genuine, for example, when it is determined that there is no contradiction for all discrimination items.

As described above, in this embodiment, the authenticity of the driver's license 10 is determined by comparing the IC chip information with the character information on the face of the driver's license 10 and determining whether or not there is a contradiction in the character information on the face of the driver's license 10. By determining the authenticity based on these results, the authenticity of the driver's license 10 can be determined more reliably.

The text information used to determine authenticity indicates, for example, a specific date, and the authenticity of the driver's license 10 can be appropriately determined based on whether its contents match the IC chip information or whether there is a contradiction. Inconsistencies in text information can be broadly divided into cases where there is a contradiction between the contents of one piece of text information and the contents of another piece of text information, and cases where there is a contradiction between the contents of one piece of text information and the attributes of that piece of text information, but in this embodiment, both cases can be determined as contradictions.

In addition, in this embodiment, if the IC chip of the driver's license 10 cannot be read, the possibility that the IC chip is simply broken and the driver's license 10 is genuine is taken into consideration, and the driver's license 10 is not deemed to be genuine simply because the IC chip cannot be read, but the authenticity can be determined by also taking into account whether there are any inconsistencies in the text information on the face of the license.

Furthermore, the authenticity determination device 3 can make a more reliable determination by determining that the driver's license 10 is not genuine if a negative result is obtained by either comparing the text information on the face of the license with the information on the IC chip or determining whether there is a contradiction in the text information on the face of the license.

In addition, in this embodiment, the IC chip information used for matching can be read without entering a personal identification number (PIN), making it unnecessary to enter a PIN to read the IC chip information, simplifying the process of determining authenticity.

However, the present invention is not limited to the above-described embodiment. For example, the character information used to determine whether there is a contradiction is not limited to that described above. It is also possible to compare character information indicating specific locations, such as the address 13 and the public safety commission 18, and determine whether there is a contradiction between their contents. In this case, for example, if the address 13 is forged and the prefecture of the address 13 obtained from the face image does not match the prefecture of the public safety commission 18, it is determined that there is a contradiction.

It is also possible for the IC chip information used for verification to be information that can be read by entering a PIN. In this case, however, it is necessary to enter the PIN during the authenticity determination process, which is time-consuming.

The above describes preferred embodiments of the present invention with reference to the attached drawings, but the present invention is not limited to these examples. It is clear that a person skilled in the art can come up with various modified or revised examples within the scope of the technical ideas disclosed in this application, and it is understood that these also naturally fall within the technical scope of the present invention.

1: Authenticity determination system 2: Reading device 3: Authenticity determination device 10: Driver's license 301: Collation means 302: Discrimination means

Claims (7)

A driver's license authenticity determination device,
A verification means for verifying whether IC chip information obtained from an IC chip of a driver's license matches character information on the face of the driver's license obtained from an image of the driver's license;
A discrimination means for discriminating whether or not there is a contradiction between the content of character information on the face of the driver's license obtained from an image of the driver's license and the content of another character information on the face of the driver's license obtained from an image of the driver's license;
having
The authenticity determination device is characterized in that the discrimination means extracts the band color of the expiration date, which is text information on the face of the certificate, from the image, and determines that there is a contradiction if the year of the expiration date is not within a predetermined range based on the date of issue, which is other text information on the face of the certificate, and the band color . The discrimination means discriminates with respect to a plurality of discrimination items,
The authenticity determination device described in claim 1, characterized in that the discrimination means further determines whether or not there is a contradiction between the content of the character information on the face of the driver's license obtained from the image of the driver's license and the attributes of the character information on the driver's license, and determines that there is a contradiction if the license number, which is the character information that should be written as a number of a specified number of digits on the driver's license, is not a number of the specified number of digits . The authenticity determination device according to claim 1 or 2, characterized in that if the IC chip of the driver's license cannot be read, the result of the comparison by the comparison means is deemed incompatibilized, and the authenticity of the driver's license is determined from the result of discrimination by the discrimination means. The authenticity determination device according to any one of claims 1 to 3, characterized in that the authenticity determination device determines that the driver's license is not authentic when the comparison means determines that the IC chip information and the character information do not match, or when the discrimination means determines that there is a contradiction. The authenticity determination device according to any one of claims 1 to 4, characterized in that the IC chip information is information that can be read without inputting a PIN number. The discrimination means discriminates with respect to a plurality of discrimination items,
The authenticity determination device described in any one of claims 1 to 5, characterized in that the discrimination means further compares the date of birth, which is text information on the face of the card, with another text information on the face of the card, which is a type of exemption, and determines whether there is a contradiction between the date of birth and the type of exemption. Computer,
A driver's license authenticity determination device,
A verification means for verifying whether IC chip information obtained from an IC chip of a driver's license matches character information on the face of the driver's license obtained from an image of the driver's license;
A discrimination means for discriminating whether or not there is a contradiction between the content of character information on the face of the driver's license obtained from an image of the driver's license and the content of another character information on the face of the driver's license obtained from an image of the driver's license;
having
The discrimination means is a program for functioning as an authenticity determination device, which extracts the expiration date band color, which is text information on the face of the certificate, from the image, and determines that there is a discrepancy if the expiration date year is not within a predetermined range based on the issue date, which is other text information on the face of the certificate, and the band color .

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