Title of Invention: Gate Device, Server Device, Immigration Control System, Gate Device Control Method, and Server Device Control Method
Technical field
[0001]
The present invention relates to a gate device, a server device, an immigration control system, a gate device control method, and a server device control method.
Background technology
[0002]
　Immigration will be carried out at the airport. The immigration officer will compare the face photo affixed to the passport with the face of the person in front of him, and if the face image on the passport matches the face of the person in front of him, he will be allowed to enter the country.
[0003]
Also, in recent years, devices have been introduced that automatically perform the above-mentioned immigration inspections. For example, the gate device disclosed in Patent Literature 1 examines immigration of the person based on the result of matching the face image attached to the passport with the face image of the person standing in front of the gate device.
prior art documents
patent literature
[0004]
Patent document 1: JP 2019-071126 A
SUMMARY OF THE INVENTION
Problems to be Solved by the Invention
[0005]
In the gate device disclosed in Patent Document 1, a user opens a page of a passport on which a face image is written and places the page on a passport reader (scanner) provided in the gate device. The gate device acquires data necessary for the above-mentioned verification (one-to-one verification) from the passport reader (see, for example, paragraph [0035] of Patent Document 1).
[0006]
In order to use the gate device disclosed in Patent Document 1, the user stops in front of the gate device, opens the passport held by the user, and causes the gate device to read the information of the opened page through the passport reader. There is a need. However, forcing the user to perform such an operation defeats the significance of automatically performing the immigration examination. That is, with the gate device disclosed in Patent Document 1, the user cannot smoothly complete the immigration examination without stress.
[0007]
A main object of the present invention is to provide a gate device, a server device, an immigration control system, a gate device control method, and a server device control method that contribute to realizing smooth immigration examination.
Means to solve problems
[0008]
According to a first aspect of the present invention, an acquisition unit for acquiring biometric information of a user to be screened, the biometric information of the user, and the MRZ described in the machine-readable area of ​​the passport issued to the user (Machine Readable Zone) information, requesting the server device to collate the biometric information of the user to be screened; and a control unit that controls the gate so that the user to be screened can pass through when information is successfully read from an IC (Integrated Circuit) chip.
[0009]
According to the second aspect of the present invention, the biometric information of the user and the MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user are associated with each other, and the gate user The gate user information is retrieved and received by using the storage unit that stores the information and the biometric information of the user subject to examination received from the gate device that controls the gate according to the result of the user's immigration examination. A server device is provided, comprising: a collation unit that identifies the MRZ information corresponding to the biometric information obtained; and a communication control unit that transmits the identified MRZ information to the gate device.
[0010]
According to the third aspect of the present invention, the biometric information of the user and the MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user are associated with each other, and the gate user and a gate device for controlling a gate according to the result of the user's immigration examination. The biometric information of the user to be screened is transmitted to the device, and the server device searches the gate user information to specify the MRZ information corresponding to the received biometric information, and transmits the specified MRZ information to the to the gate device, and the gate device uses the received MRZ information to read out the information from the IC (Integrated Circuit) chip of the passport so that the user to be screened can pass through An immigration control system is provided that controls the gate.
[0011]
According to a fourth aspect of the present invention, in the gate device, the biometric information of the user to be screened is acquired, and the biometric information of the user and the MRZ written in the machine-readable area of ​​the passport issued to the user are obtained. (Machine Readable Zone) information is stored in association with the server device, the server device is requested to collate the biometric information of the user to be screened, and the IC (Integrated Circuit) of the passport is used using the MRZ information specified by the collation. A method for controlling a gate device is provided for controlling the gate so that the user to be screened can pass through when the information is successfully read from the chip.
[0012]
According to the fifth aspect of the present invention, the user's biometric information is associated with MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user, and the gate user A server device having a storage unit that stores information, controls the gate according to the result of the user's immigration examination, and uses the biometric information of the user subject to examination received from the gate device to store the gate user information A method for controlling a server device is provided, which specifies the MRZ information corresponding to the retrieved and received biometric information, and transmits the specified MRZ information to the gate device.
Effect of the invention
[0013]
According to each aspect of the present invention, a gate device, a server device, an immigration examination system, a gate device control method, and a server device control method that contribute to realizing smooth immigration examination are provided. In addition, the effect of this invention is not limited above. Other effects may be achieved by the present invention instead of or in addition to this effect.
Brief description of the drawing
[0014]
1 is a diagram for explaining an overview of an embodiment; FIG.
2 is a diagram showing an example of a schematic configuration of an immigration examination system according to the first embodiment; FIG.
3 is a diagram showing an example of a processing configuration of a server device according to the first embodiment; FIG.
4 is a diagram showing an example of a gate user database; FIG.
5 is a diagram showing an example of a hardware configuration of a server device according to the first embodiment; FIG.
6 is a diagram showing an example of the hardware configuration of the gate device according to the first embodiment; FIG.
7 is a diagram showing an example of the processing configuration of the gate device according to the first embodiment; FIG.
8 is a diagram showing an example of a matching request; FIG.
9 is a sequence diagram showing an example of the operation of the immigration system according to the first embodiment; FIG.
10 is a diagram showing an example of a processing configuration of a gate device according to a second embodiment; FIG.
11 is a diagram for explaining a modification of the disclosure of the present application; FIG.
12 is a diagram showing an example of a schematic configuration of an immigration examination system disclosed in the present application; FIG.
MODE FOR CARRYING OUT THE INVENTION
[0015]
First, an outline of one embodiment will be described. It should be noted that the drawing reference numerals added to this outline are added to each element for convenience as an example to aid understanding, and the description of this outline does not intend any limitation. Also, unless otherwise specified, the blocks shown in each drawing represent the configuration of each function rather than the configuration of each hardware unit. Connecting lines between blocks in each figure include both bi-directional and uni-directional. The unidirectional arrows schematically show the flow of main signals (data) and do not exclude bidirectionality. In addition, in the present specification and drawings, elements that can be described in the same manner can be omitted from redundant description by assigning the same reference numerals.
[0016]
The gate device 100 according to one embodiment includes an acquisition unit 101, a matching request unit 102, and a control unit 103 (see FIG. 1). The acquisition unit 101 acquires biometric information of a user to be screened. The verification request unit 102 associates and stores the biometric information of the user with the MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user, and stores it in the server device. request verification of the biometric information of the person. When the control unit 103 succeeds in reading information from the IC (Integrated Circuit) chip of the passport using the MRZ information specified by the collation, the control unit 103 controls the gate so that the user to be screened can pass through. .
[0017]
In the immigration system including the gate device 100, if the biometric information of the user who wants to use the system is registered in the server device in advance, the user can enter and leave the country simply by touching the passport to the gate device 100 without opening the passport. The examination can be terminated. As a result, it is possible to realize a smooth immigration examination that is highly convenient for the user.
[0018]
Specific embodiments will be described in more detail below with reference to the drawings.
[0019]
[First Embodiment]
The first embodiment will be described in more detail using the drawings.
[0020]
FIG. 2 is a diagram showing an example of the schematic configuration of the immigration examination system according to the first embodiment. Referring to FIG. 2, the immigration control system includes a plurality of gate devices 10-1 to 10-3 and a server device 20. In the following description, the gate devices 10-1 to 10-3 are simply referred to as "gate device 10" unless there is a particular reason to distinguish them. Although three gate devices 10 are shown in FIG. 2, it is needless to say that the number of gate devices 10 included in the system is not limited. The immigration control system should include at least one or more gate devices 10 .
[0021]
The gate device 10 is a device that automatically performs examination procedures related to immigration of users. The gate device 10 includes a gate that can be opened and closed. The gate device 10 opens the gate and permits the passage of the user when it determines that the person positioned in front of the gate device 10 has a valid passport. In this way, the gate device 10 controls the gate according to the result of immigration control of the user.
[0022]
The server device 20 is a device for realizing immigration examination by the gate device 10 described above. For example, the server device 20 stores information about users who can use the gate device 10 (hereinafter referred to as gate user information). Specifically, the server device 20 collects biometric information of the user and information written in the machine readable zone (MRZ) of the passport issued to the user (hereinafter referred to as MRZ information). ) are associated with each other and stored.
[0023]
The user's biometric information includes, for example, data (feature amounts) calculated from physical features unique to an individual, such as the face, fingerprint, voiceprint, veins, retina, and iris pattern of the pupil. Alternatively, the user's biometric information may be image data such as a face image or a fingerprint image. A user's biometric information should just contain a user's physical characteristic as information.
[0024]
The information written in the MRZ of the passport (MRZ information) includes the user's name, nationality, gender, date of birth, passport number, expiration date of validity period, etc.
[0025]
The gate device 10 and the server device 20 are configured to be able to communicate with each other through wired or wireless communication means. The server device 20 may be installed in the same airport as the gate device 10, or may be installed on a network (cloud).
[0026]
[Outline operation of the immigration control system]
Next, the schematic operation of the immigration examination system according to the first embodiment will be described with reference to FIG.
[00 27]
Gate user information regarding the user of the immigration control system is registered in the server device 20, for example, before the user leaves the country. That is, the gate user information is registered in the server device 20 before the user boarding or before departure on the day of boarding. The server device 20 has a database for storing gate user information, and when a user is registered, an entry for each user is added to the database. In the following description, the database for storing gate user information is referred to as "gate user database". The gate user database stores the biometric information of at least one or more users in association with the MRZ information described in the machine-readable area of ​​the passport issued to the at least one or more users.
[0028]
The user visits the airport (the airport where the gate device 10 is installed) on the day of boarding. After completing boarding procedures such as check-in and security check, the user moves to an area (immigration control area) where the gate device 10 is installed.
[0029]
When the user arrives at the immigration inspection area, he or she moves toward the gate device 10 .
[0030]
When the user approaches the device (gate device 10) (when the distance between the user and the device becomes equal to or less than a predetermined distance), the gate device 10 acquires (generates) biometric information from the user. The biometric information acquired by the gate device 10 is the same kind of information as the biometric information registered as the gate user information in the server device 20 .
[0031]
The gate device 10 transmits the acquired biometric information to the server device 20 . More specifically, the gate device 10 transmits to the server device 20 a “verification request” including the biometric information obtained above.
[0032]
The server device 20 searches the gate user database using the received biometric information as a key, and identifies the MRZ information corresponding to the received biometric information. The server device 20 transmits to the gate device 10 a response (response to the verification request) including the specified MRZ information.
[0033]
When the user arrives at the gate device 10, the user holds his/her passport over a reader (reader 316 described later) provided in the gate device 10 (touches the passport on the reader). That is, the user touches the passport to the reader of the gate device 10 in the same way as a transportation IC card is touched to a card reader at a ticket gate at a station.
[0034]
The gate device 10 attempts to read the information written on the IC chip of the passport via the reader. When the gate device 10 succeeds in reading the information stored in the IC chip using the MRZ information obtained from the server device 20, it determines that the user has the correct passport and opens the gate.
[0035]
　The user passes through the gate and the immigration inspection is completed.
[0036]
As described above, in the immigration examination system according to the first embodiment, by registering the gate user information in the server device 20 in advance, the user touches the passport to the reader without opening the passport. can pass through
[0037]
Next, details of each device included in the immigration control system according to the first embodiment will be described. In the following description, as biometric information registered in the server device 20, information regarding a person's "face" will be taken as an example.
[0038]
[Server device]
FIG. 3 is a diagram showing an example of the processing configuration (processing modules) of the server device 20 according to the first embodiment. Referring to FIG. 3 , server device 20 includes communication control section 201 , user information registration section 202 , first matching section 203 , and storage section 204 .
[0039]
The communication control unit 201 is means for controlling communication with other devices. Specifically, the communication control unit 201 receives data (packets) from the gate device 10 . Also, the communication control unit 201 transmits data to the gate device 10 .
[0040]
The user information registration unit 202 is means for acquiring gate user information and registering the acquired gate user information in the gate user database constructed in the storage unit 204 . Any method can be used to acquire gate user information.
[0041]
For example, the staff in charge may register the gate user information in the server device 20 at the passport issuing counter. Specifically, the staff in charge will operate the scanner to read the passport page with the face photo and MRZ. The staff in charge operates a terminal (computer installed at the issuing window) and transmits the read data (image data) to the server device 20 . Alternatively, the read data may be input to the server device 20 via an external storage device such as a USB (Universal Serial Bus) memory.
[0042]
The above data (face photo, image data including MRZ) may be input to the server device 20 during the check-in procedure at the airport. Specifically, when an airline employee checks the user's passport, the page on which the face photo and MRZ are described is read using a scanner. An employee of the airline company may transmit the read data from the terminal to the server device 20 .
[0043]
Alternatively, the user may use a so-called automatic check-in machine to read the page on which the face photo and MRZ are described. In this case, the read data is transmitted to the server device 20 from the automatic check-in machine.
[0044]
The user may take a picture of the page with the face photo and MRZ in their passport to obtain image data including the face photo and MRZ. Specifically, the user uses a smartphone or the like to take a picture of a passport page containing a face photo and an MRZ. After that, the captured image data is transmitted from the smartphone or the like to the server device 20 .
[0045]
Alternatively, image data including the face photo and MRZ may be obtained from a database that stores the history of users who have traveled abroad. Specifically, if a photograph of the face and the MRZ have been acquired at a manned immigration booth in the past and registered in a database, the image data may be transmitted to the server device 20 from the database.
[0046]
The user information registration unit 202 acquires image data including the face photo and MRZ written on the user's passport by any of the methods described above or other methods.
[0047]
The user information registration unit 202 extracts feature points from the face image included in the acquired image data. Since the existing technology can be used for the feature point extraction processing, detailed description thereof will be omitted. For example, the user information registration unit 202 extracts the eyes, nose, mouth, etc. from the face image as feature points. After that, the user information registration unit 202 calculates the position of each feature point and the distance between each feature point as a feature amount, and generates a feature vector (vector information that characterizes the face image) composed of a plurality of feature amounts.
[0048]
The user information registration unit 202 extracts MRZ information from image data containing MRZ information. Specifically, the user information registration unit 201 extracts the MRZ information from the image data using optical character recognition (OCR) technology.
[0049]
The user information registration unit 202 associates the generated feature vector with the extracted MRZ information and registers them in the gate user database.
[0050]
FIG. 4 is a diagram showing an example of the gate user database. As shown in FIG. 4, feature vectors generated from face images are registered as biometric information. Also, MRZ information corresponding to each biometric information (feature vector) is registered in the gate user database.
[0051]
The first collation unit 203 is means for processing a collation request transmitted by the gate device 10 . Specifically, the first collation unit 203 sets the biometric information (feature vector) included in the collation request as a collation target, and performs collation processing with the biometric information registered in the gate user database.
[0052]
More specifically, the first collation unit 203 sets the feature vector extracted from the collation request as a collation object, and compares it with a plurality of feature vectors registered in the gate user database in a one-to-N (N is a positive integer, and so on).
[0053]
The first matching unit 203 calculates the degree of similarity between the feature vector to be matched and each of the multiple feature vectors on the registration side. Chi-square distance, Euclidean distance, or the like can be used for the degree of similarity. Note that the greater the distance, the lower the similarity, and the closer the distance, the higher the similarity.
[0054]
The first collation unit 203 selects a feature vector having the highest degree of similarity with the feature vector to be collated from among the plurality of feature vectors registered in the gate user database and having a degree of similarity equal to or greater than a predetermined value. Identify.
[0055]
The first matching unit 203 reads MRZ information corresponding to the feature vector (biometric information) obtained as a result of the 1:N matching from the gate user database. The first collation unit 203 transmits the read MRZ information to the gate device 10 that is the transmission source of the collation request (responds to the collation request).
[0056]
For example, in the example of FIG. 4, if the feature vector FV acquired from the gate device 10 is most similar to the feature vector FV1 stored in the gate user database and the degree of similarity is equal to or greater than a predetermined value, the corresponding MRZ01 is sent to the gate device 10 .
[0057]
As a result of executing the one-to-N matching, the first matching unit 203, if biometric information matching (substantially matching or similar) to the biometric information included in the matching request is not registered in the gate user database, The gate device 10 is notified to that effect. For example, the first matching unit 203 sets the feature vector to "None" and responds to the gate device 10 .
[0058]
Alternatively, the first verification unit 203 does not make any response to the gate device 10, thereby notifying the gate device 10 that the biometric information included in the verification request does not exist in the gate user database. good too. In this case, the biometric information included in the verification request does not exist in the gate user database because the gate device 10 that has transmitted the verification request cannot receive a response from the server device 20 within a predetermined period of time. Recognize that.
[0059]
The storage unit 204 stores various information necessary for the operation of the server device 20 . Also, as described above, a gate user database is constructed in the storage unit 204 .
[0060]
FIG. 5 is a diagram showing an example of the hardware configuration of the server device 20 according to the first embodiment. The server device 20 can be configured by an information processing device (so-called computer), and has a configuration illustrated in FIG. 5 . For example, the server device 20 includes a processor 211, a memory 212, an input/output interface 213, a communication interface 214, and the like. Components such as the processor 211 are connected by an internal bus or the like and configured to be able to communicate with each other.
[0061]
However, the configuration shown in FIG. 5 is not intended to limit the hardware configuration of the server device 20. The server device 20 may include hardware (not shown) and may not have the input/output interface 213 as necessary. Also, the number of processors 211 and the like included in the server device 20 is not limited to the example illustrated in FIG.
[0062]
The processor 211 is, for example, a programmable device such as a CPU (Central Processing Unit), MPU (Micro Processing Unit), DSP (Digital Signal Processor). Alternatively, the processor 211 may be a device such as an FPGA (Field Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit). process The processor 211 executes various programs including an operating system (OS).
[0063]
The memory 212 is RAM (Random Access Memory), ROM (Read Only Memory), HDD (Hard Disk Drive), SSD (Solid State Drive), or the like. The memory 212 stores an OS program, application programs, and various data.
[0064]
The input/output interface 213 is an interface for a display device and an input device (not shown). The display device is, for example, a liquid crystal display. The input device is, for example, a device such as a keyboard or mouse that receives user operations.
[0065]
The communication interface 214 is a circuit, module, etc. that communicates with other devices. For example, the communication interface 214 includes a NIC (Network Interface Card) or the like.
[0066]
The functions of the server device 20 are realized by various processing modules. The processing module is implemented by the processor 211 executing a program stored in the memory 212, for example. Also, the program can be recorded in a computer-readable storage medium. The storage medium can be non-transitory such as semiconductor memory, hard disk, magnetic recording medium, optical recording medium, and the like. That is, the present invention can also be embodied as a computer program product. Also, the program can be downloaded via a network or updated using a storage medium storing the program. Furthermore, the processing module may be realized by a semiconductor chip.
[0067]
[Gate device]
Next, the gate device 10 according to the first embodiment will be described.
[0068]
FIG. 6 is a diagram showing an example of the hardware configuration of the gate device 10 according to the first embodiment. Referring to FIG. 6 , gate device 10 includes processor 311 , memory 312 , input/output device 313 , communication interface 314 , camera device 315 , reader 316 and gate 317 .
[0069]
Note that the processor 311, memory 312, and communication interface 314 can be the same as the corresponding elements of the server device 20 described using FIG. 5, so detailed description thereof will be omitted.
[0070]
The input/output device 313 is a device for inputting information to the gate device 10 (for example, a touch panel) and a device for outputting information (for example, a liquid crystal monitor).
[0071]
The camera device 315 is, for example, a digital camera installed so as to be able to photograph the front (front) of the gate device 10 . Camera device 315 can be installed at any location. For example, the camera device 315 may be installed on the main body of the gate device 10 or may be installed at a location away from the gate device 10 . The camera device 10 may be installed in any place as long as it can photograph a user (particularly, the user's face) approaching the gate device 10 .
[0072]
A reader 316 is a device that reads information from a passport. The reader 316 has a function of accessing the IC chip mounted on the passport and a function of scanning the pages of the mounted passport. That is, the reader 316 has a function as a card reader that exchanges information (data) with the IC chip of the passport in a non-contact state, and a function as a passport reader (scanner) that acquires an image from the passport. . Reader 316 can be installed anywhere. However, the reader 316 is preferably installed in a location where the user can easily touch the device with the passport. In the disclosure of the present application, the reader 316 is described as having a function as a card reader and a function as a passport reader, but these two functions may of course be realized by different devices.
[0073]
When the user passes through the immigration control, the gate 317 shifts from the closed state during standby, which blocks the passage of the user, to the open state, which permits the passage of the user. The method of the gate 317 is not particularly limited, and may be, for example, a flapper gate that opens and closes by flappers provided from one or both sides of the passage, a turnstile gate that rotates three bars, or the like.
[0074]
FIG. 7 is a diagram showing an example of the processing configuration (processing modules) of the gate device 10 according to the first embodiment. Referring to FIG. 7, the gate device 10 includes a communication control unit 301, a biometric information acquisition unit 302, a verification request unit 303, a passport possession determination unit 304, a gate control unit 305, and a storage unit 306. .
[0075]
The communication control unit 301 is means for controlling communication with other devices, similar to the communication control unit 201 of the server device 20 .
[0076]
The biometric information acquisition unit 302 is means for acquiring biometric information of a user who is about to pass through the gate device 10 . For example, the biological information acquisition unit 302 controls the camera device 315 and acquires a face image of a person walking toward the self device (the gate device 10). For example, when the biometric information acquisition unit 302 detects a user's face in an image that is constantly or periodically captured, the biometric information acquisition unit 302 captures the user's face and acquires the face image.
[0077]
The biometric information acquisition unit 302 may extract the face area from the image when the size of the face area included in the captured image is equal to or greater than a predetermined value. In this case, by appropriately adjusting the predetermined value (threshold value), the facial image of the user positioned at a predetermined distance from the gate device 10 can be acquired. In other words, it is possible to prevent biometric information from being sent to the server device 20 that is inappropriate for face authentication (one-to-N matching by the server device 20 ) due to a photograph of a user far away from the gate device 10 .
[0078]
Alternatively, the biological information acquisition unit 302 may measure the distance between the gate device 10 and the user using a distance sensor or the like, and acquire the facial image of the user present at a predetermined position.
[0079]
The biometric information acquisition unit 302 delivers the acquired face image to the matching request unit 303.
[0080]
The verification request unit 303 is means for requesting the server device 20 to verify whether the biometric information of the person corresponding to the acquired face image is registered in the gate user database. Specifically, the matching request unit 303 calculates a feature amount from the acquired face image, and generates a feature vector composed of the plurality of feature amounts (a feature vector corresponding to the biometric information registered in the server device 20 is generated). generate).
[0081]
The matching request unit 303 generates a matching request including the generated feature vector (biometric information) and transmits it to the server device 20 .
[0082]
For example, the matching request unit 303 generates a matching request including an identifier of its own device (hereinafter referred to as a gate identifier), a feature vector, etc. (see FIG. 8). The MAC (Media Access Control) address or IP (Internet Protocol) address of the gate device 10 can be used as the gate identifier.
[0083]
The matching request unit 303 receives a response from the server device 20 to the matching request. The verification request unit 303 passes the response from the server device 20 (MRZ information corresponding to the feature vector specified by the 1:N verification) to the passport possession determination unit 304 .
[0084]
The passport possession determination unit 304 is means for determining whether or not the user who is about to pass through the gate device 10 possesses a valid passport. Specifically, the passport possession determination unit 304 uses the MRZ information acquired from the verification request unit 303 to attempt to read information from the IC chip of the passport held over the reader 316 .
[0085]
Here, as described in "Security Measures for IC Passports" in Reference 1 below, the information stored in the IC chip of the passport is encrypted (converted) using the MRZ information described in the same passport as a password. ing.

https://www.mofa.go.jp/mofaj/toko/passport/ic_faq.html#11
[0086]
When the passport possession determination unit 304 can read information from the IC chip using the MRZ information acquired from the server device 20 (when the information is successfully decoded), the user who is about to pass through the gate device 10 Determine that you have the correct passport.
[0087]
On the other hand, if the passport possession determination unit 304 cannot read the information from the IC chip using the MRZ information acquired from the server device 20, the user who is going to pass through the gate device 10 does not possess the correct passport. judge not.
[0088]
In this way, the passport possession determination unit 304 determines that the user possesses the correct passport if the information is successfully read from the IC chip using the MRZ information (if the encryption is decrypted). Therefore, the passport possession determining unit 304 may or may not check the contents of the information read from the IC chip.
[0089]
When the passport possession determination unit 304 determines that the user who is going to pass through the gate device 10 has the correct passport, the passport possession determination unit 304 instructs the gate control unit 305 to "open the gate".
[0090]
When the passport possession determination unit 304 determines that the user who is going to pass through the gate device 10 does not possess the correct passport, no particular operation is performed. That is, if it is determined that the user who is going to pass through the gate device 10 does not have the correct passport, the gate 317 will not be opened.
[0091]
The gate control unit 305 is means for controlling the gate 317 provided in the gate device 10 . Specifically, the gate control unit 305 controls opening and closing of the gate 317 according to instructions from the passport possession determination unit 304 . The gate control unit 305 closes the gate 317 after the user with the correct passport who is permitted to pass through the gate 317 using a distance sensor or the like.
[0092]
[Operation of immigration control system]
Next, the operation of the immigration examination system according to the first embodiment will be explained.
[0093]
FIG. 9 is a sequence diagram showing an example of the operation of the immigration system according to the first embodiment. FIG. 9 is a sequence diagram showing an example of system operation on the boarding date of the user. It is assumed that the user's "gate user information" is registered in advance in the server device 20 prior to the operation of FIG.
[0094]
When the user approaches the own device, the gate device 10 acquires biometric information from the user (step S01). For example, the gate device 10 acquires a user's face image.
[0095]
When the facial image is successfully obtained, the gate device 10 transmits a verification request including the user's biometric information to the server device 20 (step S02). Specifically, the gate device 10 calculates a feature vector from the face image and transmits a matching request including the calculated feature vector to the server device 20 .
[0096]
The server device 20 that has received the verification request extracts the biometric information (feature vector) from the verification request, and uses the feature vector to perform 1:N matching with the biometric information registered in the gate user database. (Step S03). The server device 20 searches for biometric information that is most similar to the biometric information acquired from the gate device 10 and whose degree of similarity is equal to or greater than a predetermined value, among the plurality of biometric information registered in the gate user database.
[0097]
The server device 20 transmits a response including the MRZ information specified as a result of the one-to-N matching to the gate device 10 (the gate device 10 that transmitted the matching request) (step S04).
[0098]
The gate device 10 uses the received MRZ information to read Information is read from the IC chip of the passport held up to the device 316, and the success or failure of the reading is determined (step S05). The gate device 10 does not perform any special processing when reading information from the IC chip fails (step S05, No branch). In this case, the gate 317 of the gate device 10 remains closed.
[0099]
When the gate device 10 succeeds in reading information from the IC chip (step S05, Yes branch), it opens the gate 317 (step S06).
[0100]
In this way, the gate device 10 acquires the biometric information of the user to be screened and transmits the biometric information of the user to be screened to the server device 20 . The server device 20 searches for the gate user information, specifies MRZ information corresponding to the received biometric information, and transmits the specified MRZ information to the gate device 10 . The gate device 10 controls the gate so that the user to be screened can pass through when the information is successfully read from the IC chip of the passport using the received MRZ information.
[0101]
Here, the gate device 10 opens the gate 317 only when the user who has registered the gate user information in the server device 20 in advance presents his/her correct passport to the gate device 10 . In other words, the gate 317 does not open in the following cases, and the immigration examination by the gate device 10 does not end normally.
[0102]
For example, even if a user whose gate user information is not registered in the server device 20 presents his/her passport to the gate device 10, the corresponding MRZ information cannot be obtained from the server device 20, so the gate 317 does not open. . In this case, the gate device 10 may display a message to that effect (that the necessary information is not registered in the server device) and prompt the user to move to a manned immigration inspection area.
[0103]
Even if the gate user information is registered in the server device 20, the gate 317 will not open if the user tries to pass through without touching the passport to the reader 316 of the gate device 10. This is because the gate device 10 is a device that automatically performs immigration examination, and it has an important function to confirm that the user has the correct passport. That is, even if the gate user information is registered in the server device 20 in advance, the gate 317 will not open unless it is confirmed that the user whose information is registered has a passport. In this case, the gate device 10 may provide display, voice guidance, or the like prompting the reader 316 to bring the correct passport (your own passport) into contact with the reader 316 .
[0104]
Alternatively, it is assumed that the gate device 10 cannot read the MRZ information because the passport is put in a case or the like even though the user touches the reader 316 with the passport. In such a case, the gate device 10 may display the passport so that it is brought out of the case or the like and brought into contact with the reader 316 , or open the passport and bring it into contact with the reader 316 . .
[0105]
Alternatively, the gate 317 does not open when the user presents another person's passport to the gate device 10 instead of his/her own passport. For example, even if the parent and the child have their gate user information registered in the server device 20 , the gate 317 will not open when the parent presents the child's passport to the gate device 10 . In this case as well, the gate device 10 may provide display, voice guidance, or the like prompting the reader 316 to bring the correct passport (your own passport) into contact with the reader 316 .
[0106]
As described above, in the immigration examination system according to the first embodiment, biometric information of users who wish to use the gate device 10 is registered in the server device 20 in advance. Then, when a user appears in front of the gate device 10 on boarding day, the gate device 10 acquires the biometric information of the user and determines whether the acquired biometric information is registered in the server device 20. (requests the server device 20 for one-to-N matching using biometric information). As a result of the collation, when it is confirmed that the user's biometric information is registered in the server device 20, the gate device 10 checks whether the passport presented by the user is really the user's passport. to confirm. Specifically, the gate device 10 uses the MRZ information specified by the face authentication result from the server device 20 to confirm whether or not the information can be read from the IC chip of the passport. As mentioned above, the MRZ information described in the same passport is required to retrieve information from the IC chip. Therefore, the fact that information has been successfully read from the IC chip using the MRZ information indicates that the MRZ information obtained from the server device 20 matches the MRZ information in the passport presented by the user. Based on the match, the gate device 10 determines that the user in front of him has the correct passport, and opens the gate (allows the user to pass through immigration control). As described above, in the first embodiment, if information is registered in the database in advance, the user can finish the immigration examination simply by touching the gate device 10 without opening the passport. As a result, it is possible to realize a smooth immigration examination that is highly convenient for the user.
[0107]
[Second embodiment]
Next, a second embodiment will be described in detail with reference to the drawings.
[0108]
In the first embodiment, it is assumed that there is no contradiction (inconsistency) between the biometric information of the gate user information registered in the server device 20 and the MRZ information. When the gate user information is registered by an official of a public institution, it is difficult to assume that the above contradiction will occur. is slightly present.
[0109]
If the above contradiction exists, a problem arises because correct immigration inspection cannot be performed. In the second embodiment, a case will be described in which a more reliable immigration examination is realized by performing verification processing in the gate device 10 as well.
[0110]
In addition, in the second embodiment, the schematic configuration of the immigration system and the processing configuration of the server device 20 can be the same as in the first embodiment, so the description corresponding to FIG. 2, FIG. 3, etc. will be omitted. The following description focuses on the differences between the first and second embodiments.
[0111]
FIG. 10 is a diagram showing an example of the processing configuration (processing modules) of the gate device 10 according to the second embodiment. Referring to FIG. 10, a second matching section 307 is added to the configuration shown in FIG.
[0112]
The second verification unit 307 verifies whether or not the biometric information of the user matches the biometric information read from the IC chip of the passport that the user has brought into contact with the reader 316 (one-to-one verification). It is a means.
[0113]
The biometric information acquisition unit 302 stores the acquired biometric information (for example, the user's face image captured using the camera device 315) in the storage unit 306.
[0114]
When the passport possession determination unit 304 succeeds in reading out information from the IC chip using the MRZ information obtained from the server device 20, the facial image in the read information is handed over to the second verification unit 307.
[0115]
The second collation unit 307 executes collation (one-to-one collation) between the face image acquired from the passport possession determination unit 304 and the face image stored in the storage unit 306 . Specifically, the second matching unit 307 calculates feature vectors from each of the two images. After that, the second matching unit 307 calculates the similarity (e.g., Euclidean distance) between the two images, and determines whether the two images are facial images of the same person based on the result of threshold processing for the calculated similarity. determine whether or not For example, if the degree of similarity is greater than a predetermined value (if the distance is shorter than a predetermined value), the second verification unit 307 determines that the two face images are of the same person.
[0116]
When the one-to-one matching is successful (when the face image of the user in front of him matches the face image read from the IC chip of the presented passport), the second verification unit 307 instructs the gate control unit 305 to open the gate. instruct.
[0117]
In this manner, the gate device 10 allows the user to pass through when the biometric information obtained from the user and the biometric information read from the IC chip presented by the user are successfully matched. Gate 317 is opened. That is, the gate device 10 allows the user to pass through when the distance between the feature vectors obtained from the two pieces of biometric information is shorter than a predetermined distance and the two pieces of biometric information can be determined to be substantially the same. Gate 317 is controlled so that
[0118]
As described above, in the second embodiment, a pair of facial images of the user obtained from the camera device 315 attached to the gate device 10 and the facial image read from the IC chip of the passport presented by the user is provided. 1 Perform verification. The gate device 10 opens the gate 317 when the personal authentication is successful as a result of the one-to-one collation. That is, even if the gate user information registered in the server device 20 is inconsistent, which causes a problem in the first embodiment, the second embodiment performs the final personal authentication, thereby A user who should not pass through the gate device 10 can be prevented from passing through the gate device 10 . In the second embodiment, by performing one-to-one verification at the gate device 10 after one-to-N verification at the server device 20, the user who is going to pass through the gate device 10 can use the correct passport (his passport). I assure you that I have it.
[0119]
[Modification]
It should be noted that the configuration, operation, etc. of the immigration inspection system described in the above embodiment are examples, and are not intended to limit the configuration of the system.
[0120]
For example, all or part of the functions of the server device 20 may be realized by the gate device 10. Alternatively, the gate user database provided in server device 20 may be constructed in another database server. The immigration examination system includes storage means (storage unit 204) for storing gate user information, verification means (first verification unit 203) for performing one-to-N verification using the gate user information, and verification of possession of a user's passport. It is only necessary to provide determination means for determination (passport possession determination unit 304) or the like.
[0121]
In the above embodiment, the case where the feature vector calculated from the facial image is transmitted and received between the gate device 10 and the server device 20 has been described. In this case, a matching request including a face image is transmitted from the gate device 10 to the server device 20, and the feature vector is calculated from the received face image by the server device 20 to perform 1:N matching. Alternatively, a face image may be registered in the user information database of the server device 20 instead of the feature vector, and the feature amount may be calculated each time matching is performed.
[0122]
In the above embodiment, it is assumed that the gate devices 10 are installed separately from each other, and it is considered that a user heading to a certain gate device 10 presents a passport to a gate device 10 different from the gate device 10 concerned. It has not been. However, as shown in FIG. 11, it is possible to conceive an installation form in which users line up in a line and walk toward the vacant gate device 10 when a gate device 10 for which examination has been completed is available. In this case, each gate device 10 cannot know whether or not the user finally presents the passport to the gate device 10 even if the user is photographed and the face image is acquired. Therefore, the server device 20 may transmit the response to the response request (response including the MRZ information) not only to the sender of the response request but also to other gate devices 10 . For example, in FIG. 11, consider a case where the gate device 10-2 photographs the users lined up in line and transmits a verification request including the biometric information of the users. In this case, server device 20 transmits the MRZ information obtained as a result of one-to-N matching not only to gate device 10-2, which is the source of the matching request, but also to gate devices 10-1 and 10-3. As a result, as shown in FIG. 11, the user operates the gate instead of the gate device 10-2 Even when facing the device 10-1, immigration examination (success or failure of information reading from the IC chip by MRZ information) can be executed for the user. This is because the gate device 10-1 possesses the MRZ information corresponding to the passport of the user.
[0123]
In the above embodiment, it is assumed that one image contains one face area, but one image may contain multiple face areas depending on the circumstances of the examination room. In this case, server device 10 may extract a face region closest to itself and transmit biometric information to server device 20 . For example, the server device 10 may calculate the area of ​​each facial area and extract the facial area having the largest area. Alternatively, a depth camera or the like capable of measuring the distance in the depth direction may be employed as the camera device 10, the distance from the camera device 10 may be measured, and the face image of the closer person may be extracted.
[0124]
In addition, the disclosure of the present application realizes a smooth examination by completing the immigration examination only by bringing the passport into contact with the card reader 316 without the user opening the passport. does not exclude the opening of For example, if a predetermined condition is satisfied, the user may be asked to open his/her passport and an examination may be performed using the passport. For example, when the matching result by the server device 20 is not so high (when the degree of similarity is lower than a predetermined threshold), the server device 20 notifies the gate device 10 of the above (bad matching result) in addition to the MRZ information. be notified. Upon receiving the notification, the gate device 10 may instruct the user to open the passport and place the page on which the face photo and MRZ are written on the reader 316 . The gate device 10 acquires biometric information (face image) from the user (the user in front of her), and performs one-to-one matching using the biometric information and the face image obtained from the IC chip of the passport. As a result of verification, the gate device 10 may open the gate 317 if it is determined that the user has the correct passport.
[0125]
Alternatively, if the gate device 10 cannot read the information from the IC chip of the passport using the MRZ information received from the server device 20, the gate device 10 opens the passport for the user to be screened and places it on the reader 316. You can also encourage them to do so. In this case as well, the gate device 10 opens the gate 317 when it judges that the user has the correct passport as a result of verification.
[0126]
The gate device 10 may change its operation according to the attribute of the user. For example, at immigration inspection, fingerprints are not required for those with Japanese nationality, but fingerprints are required for those without Japanese nationality. Therefore, the gate device 10 may determine the user's nationality (Japanese nationality, non-Japanese nationality) based on the MRZ information obtained from the server device 20, and change the control including the gate opening/closing operation according to the result. . For example, the gate device 10 may open the gate 317 after the fingerprint collection and the examination of the collected fingerprint are normally completed for the immigration examination of the foreigner.
[0127]
In the above embodiment, the gate device 10 is installed at one airport (departure airport or arrival airport), but the gate device 10 may be installed at both the departure airport and the arrival airport (see FIG. 12). . A user whose gate user information has already been registered in the server device 20 does not need to re-register the gate user information and can undergo a smooth immigration examination by the gate device 10 according to the disclosure of the present application.
[0128]
Alternatively, as shown in FIG. 12, when the gate device 10 disclosed in the present application is installed at the departure airport and the arrival airport, the gate user information registered in the server device 10 is deleted for each flight of the user. may This is because MRZ information including biometric information and names registered in the server device 20 belongs to personal information, and it is not desirable to retain such personal information for a long period of time. In this case, when the server device 20 receives a notification from the gate device 10 on the arrival side (the gate device 10-5 in the example of FIG. 12) that the immigration examination of the user has been completed normally, the server device 20 Delete user information. Alternatively, when the gate device 10 on the departure side (the gate device 10-4 in the example of FIG. 12) normally completes the immigration examination of the user, it may notify the gate device 10-5 on the arrival side. . In this case, the gate device 10-5 may request the server device 20 to delete the corresponding gate user information after immigration inspection of the user is completed.
[0129]
In the above embodiment, the operations of the gate device 10 and the server device 20 were mainly described using the "face" as biometric information, but the biometric information that can be used in the present disclosure is not limited to the "face". Other biometric information such as iris can be used.
[0130]
The form of data transmission/reception between the gate device 10 and the server device 20 is not particularly limited, but the data transmitted/received between these devices may be encrypted. A face image and a feature amount calculated from the face image are personal information, and in order to appropriately protect the personal information, it is desirable to transmit and receive encrypted data.
[0131]
In the above embodiment, the case of obtaining information from the IC chip of the passport using the MRZ information was explained, but the method disclosed in the present application can also be applied to other methods. In other words, when reading out information from an IC chip mounted on a medium such as a card similar to a passport, password or key information corresponding to MRZ information may be used.
[0132]
In the flowcharts (flowcharts, sequence diagrams) used in the above explanation, multiple steps (processes) are described in order, but the execution order of the steps executed in the embodiment is not limited to the described order. In the embodiment, the order of the illustrated steps can be changed within a range that does not interfere with the content, such as executing each process in parallel.
[0133]
The above embodiments have been described in detail to facilitate understanding of the disclosure of the present application, and are not intended to require all the configurations described above. Also, when a plurality of embodiments are described, each embodiment may be used alone or in combination. For example, it is possible to replace part of the configuration of the embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of the embodiment. Furthermore, additions, deletions, and replacements of other configurations are possible for some of the configurations of the embodiments.
[0134]
From the above description, the industrial applicability of the present invention is clear, and the present invention can be suitably applied to immigration control systems at airports.
[0135]
Some or all of the above embodiments can also be described as the following additional remarks, but are not limited to the following.
[Appendix 1]
an acquisition unit (101, 302) that acquires the biometric information of the user to be screened;
Said user to be screened in a server device (20) for storing biometric information of the user and MRZ (Machine Readable Zone) information described in a machine readable area of ​​a passport issued to said user in association with each other. a matching request unit (102, 303) requesting matching of the biometric information of
When the information is successfully read from the IC (Integrated Circuit) chip of the passport using the MRZ information specified by the verification, the gate (317) is controlled so that the user to be screened can pass through; a control unit (103, 305);
a gate device (10, 100).
[Appendix 2]
The control unit (103, 305)
Controlling the gate (317) so that the user to be screened can pass through when the biometric information obtained from the user to be screened and the biometric information read from the IC chip are successfully matched. 2. A gate device (10, 100) according to claim 1.
[Appendix 3]
The gate device (10, 100) according to appendix 1 or 2, comprising a reader (316) capable of reading information from a passport, wherein the reader (316) reads information from the IC chip.
[Appendix 4]
The gate device (10, 100) according to any one of Appendices 1 to 3, wherein the biometric information is information about a person's face.
[Appendix 5]
The matching request unit (102, 303)
The gate device (10, 100) according to appendix 4, wherein the feature vector generated from the face image of the user to be screened is transmitted to the server device (20) as the biometric information of the user to be screened.
[Appendix 6]
Supplementary note 1 prompting the user to be screened to open the passport and place it on the reader (316) when the information cannot be read from the IC chip of the passport using the received MRZ information. 6. A gate device (10, 100) according to any one of claims 1 to 5.
[Appendix 7]
a storage unit (204) for storing biometric information of a user and MRZ (Machine Readable Zone) information described in a machine readable area of ​​a passport issued to the user in association with each other as gate user information; ,
The gate user information is retrieved and received by using the biometric information of the user to be screened received from the gate device (10, 100), which controls the gate (317) according to the result of immigration inspection of the user. a matching unit (203) for identifying the MRZ information corresponding to biometric information;
a communication control unit (201) that transmits the identified MRZ information to the gate device (10, 100);
A server device (20) comprising:
[Appendix 8]
The storage unit (204) stores the gate user information regarding each of a plurality of users,
The collation unit (203) executes one-to-N (N is a positive integer) collation in which the biometric information received from the gate device (10, 100) is set as a collation object, thereby making the received biometric information A server device (20) according to claim 7, which identifies the corresponding MRZ information.
[Appendix 9]
The server device (20) according to appendix 7 or 8, wherein the biometric information is information about a person's face.
[Appendix 10]
The matching unit (203) acquires a feature vector calculated from the face image from the gate device (10, 100), and acquires the feature vector stored as gate user information and from the gate device (10, 100). The server device (20) according to appendix 9, which calculates a distance between the obtained feature vector and identifies the MRZ information corresponding to the received biometric information based on the calculated distance.
[Appendix 11]
a server device (20) that associates biometric information of a user with MRZ (Machine Readable Zone) information described in a machine readable area of ​​a passport issued to the user and stores the information as gate user information; ,
A gate device (10, 100) that controls the gate according to the immigration inspection result of the user;
including
The gate device (10, 100) acquires the biometric information of the user to be screened, and transmits the biometric information of the user to be screened to the server device (20),
The server device (20) searches for the gate user information, identifies the MRZ information corresponding to the received biometric information, and transmits the identified MRZ information to the gate device (10, 100),
When the gate device (10, 100) succeeds in reading the information from the IC (Integrated Circuit) chip of the passport using the received MRZ information, the gate device (10, 100) allows the user to be screened to pass through. Immigration system controlling the gate (317).
[Appendix 12]
In the gate device (10, 100),
　Obtaining the biometric information of the user subject to review,
Said user to be screened in a server device (20) for storing biometric information of the user and MRZ (Machine Readable Zone) information described in a machine readable area of ​​a passport issued to said user in association with each other. request verification of the biometric information of
Succeeded in reading information from the passport's IC (Integrated Circuit) chip using the MRZ information specified by the above verification. A control method for a gate device (10, 100) for controlling the gate so that the user to be screened can pass through when
[Appendix 13]
a storage unit (204) for storing biometric information of the user and MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user in association with each other as gate user information; In a server device (20) comprising
Using biometric information of a user subject to examination received from a gate device (10, 100) that controls the gate according to the result of the user's immigration examination, the gate user information is searched for the received biometric information. identifying the corresponding MRZ information;
A control method for a server device (20), which transmits the specified MRZ information to the gate device (10, 100).
[Appendix 14]
In the computer (311) mounted on the gate device (10, 100),
　The process of acquiring the biometric information of the user subject to review,
Said user to be screened in a server device (20) for storing biometric information of the user and MRZ (Machine Readable Zone) information described in a machine readable area of ​​a passport issued to said user in association with each other. a process of requesting verification of the biometric information of
　If the information is successfully read from the IC (Integrated Circuit) chip of the passport using the MRZ information specified by the verification, the process of controlling the gate so that the user subject to examination can pass through;
A program that executes
[Appendix 15]
a storage unit (204) for storing biometric information of the user and MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user in association with each other as gate user information; In a computer (211) mounted on a server device (20) provided,
Using biometric information of a user subject to examination received from a gate device (10, 100) that controls the gate according to the result of the user's immigration examination, the gate user information is searched for the received biometric information. identifying the corresponding MRZ information;
a process of transmitting the identified MRZ information to the gate device (10, 100);
A program that executes
It should be noted that the modes of Supplementary Notes 11 to 15 can be developed into the modes of Supplementary Note 2, etc., like the modes of Supplementary Note 1 and Supplementary Note 7.
[0136]
It should be noted that each disclosure of the above cited prior art documents shall be incorporated into this document by citation. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Those skilled in the art will appreciate that these embodiments are illustrative only and that various modifications can be made without departing from the scope and spirit of the invention. That is, the present invention naturally includes various variations and modifications that can be made by those skilled in the art according to the entire disclosure including claims and technical ideas.
Code explanation
[0137]
10, 10-1 to 10-5, 100 Gate device
20 server device
101 Acquisition unit
102, 303 Verification request part
103 control unit
201, 301 Communication control unit
202 User information registration unit
203 first collation unit
204, 306 storage unit
211, 311 Processor
212, 312 memory
213 input/output interface
214, 314 communication interface
302 Biological information acquisition unit
304 Passport possession determination unit
305 Gate control unit
307 Second collation unit
313 input/output device
315 camera device
316 reader
317 Gate
The scope of the claims
[Claim 1]
the acquisition unit that acquires the biometric information of the user to be screened,
biometric information of the user to be screened in a server device, which associates and stores the biometric information of the user and the MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user; a verification requesting unit that requests verification of
a control unit for controlling the gate so that the user to be screened can pass through when the information is successfully read from the IC (Integrated Circuit) chip of the passport using the MRZ information specified by the collation; ,
Equipped with a gate device.
[Claim 2]
The control unit
2. The method according to claim 1, wherein when the biometric information obtained from the user to be screened and the biometric information read from the IC chip are successfully matched, the gate is controlled so that the user to be screened can pass through. Gate device as described.
[Claim 3]
The gate device according to claim 1 or 2, comprising a reader capable of reading information from a passport, wherein the reader reads information from the IC chip.
[Claim 4]
The gate device according to any one of claims 1 to 3, wherein the biometric information is information about a person's face.
[Claim 5]
The matching request unit
The gate device according to claim 4, wherein the feature vector generated from the face image of the user to be screened is transmitted to the server device as the biometric information of the user to be screened.
[Claim 6]
6. When the information cannot be read from the IC chip of the passport using the received MRZ information, prompting the user to be screened to open the passport and place it on the reader. The gate device according to any one of 1.
[Claim 7]
a storage unit that associates the user's biometric information with MRZ (Machine Readable Zone) information written in the machine readable area of ​​the passport issued to the user and stores it as gate user information;
The MRZ information corresponding to the received biometric information by searching the gate user information using the biometric information of the user subject to inspection received from the gate device, which controls the gate according to the result of immigration inspection of the user. a matching unit that identifies
a communication control unit that transmits the identified MRZ information to the gate device;
a server device.
[Claim 8]
The storage unit stores the gate user information for each of a plurality of users,
The collation unit specifies the MRZ information corresponding to the received biometric information by executing one-to-N (N is a positive integer) collation in which the biometric information received from the gate device is set as an object to be collated. 8. The server device according to claim 7.
[Claim 9]
The server device according to claim 7 or 8, wherein the biometric information is information about a person's face.
[Claim 10]
The matching unit acquires a feature vector calculated from the face image from the gate device, calculates a distance between the feature vector stored as gate user information and the feature vector acquired from the gate device, 10. The server device according to claim 9, wherein said MRZ information corresponding to said received biometric information is specified based on the calculated distance.
[Claim 11]
a server device that associates the user's biometric information with MRZ (Machine Readable Zone) information written in the machine-readable area of ​​the passport issued to the user and stores it as gate user information;
A gate device that controls the gate according to the results of the user's immigration inspection,
including
The gate device acquires the biometric information of the user to be screened, and transmits the biometric information of the user to be screened to the server device,
The server device searches for the gate user information, specifies the MRZ information corresponding to the received biometric information, and transmits the specified MRZ information to the gate device,
When the gate device succeeds in reading information from an IC (Integrated Circuit) chip of the passport using the received MRZ information, the gate device controls the gate so that the user to be screened can pass through. immigration control system.
[Claim 12]
In the gate device,
　Obtaining the biometric information of the user subject to review,
biometric information of the user to be screened in a server device, which associates and stores the biometric information of the user and the MRZ (Machine Readable Zone) information described in the machine readable area of ​​the passport issued to the user; require matching of
A gate device that controls the gate so that the user to be screened can pass through when the information is successfully read from the IC (Integrated Circuit) chip of the passport using the MRZ information specified by the verification. control method.
[Claim 13]
A server device comprising a storage unit that stores biometric information of a user and MRZ (Machine Readable Zone) information described in a machine readable area of ​​a passport issued to the user in association with each other as gate user information. in
The MRZ information corresponding to the received biometric information by searching the gate user information using the biometric information of the user subject to inspection received from the gate device, which controls the gate according to the result of immigration inspection of the user. identify the
A server device control method for transmitting the identified MRZ information to the gate device.