JP2007328485A - Personal identification device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a personal identification device where the accuracy of identification is more improved than before by generating data for identification which requires a larger amount of data. <P>SOLUTION: A personal identification device includes a finger insertion section 1, a control device for controlling cameras 2 and 3 described below and light sources 4, 5, and a management device to which the results from the control device is output. The control device performs a step of generating identification data by making the light source 4 and 5 emit near infrared rays, capturing the vein pattern of a finger 6 imaged by the cameras 2 and 3, and combining these data; a step of verifying the identification data with the registration data of a person to be identified who is already registered; a step of registering the generated identification data in a storage section as this person's registration data; a step of assigning a registration ID number to the registration step; a step of determining whether the finger 6 is inserted into the finger insertion section 1; and a display control to a display output section and the like. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a personal authentication device, and more particularly to a device for performing personal authentication by recognizing a finger vein pattern.

  Conventionally, fingerprint authentication has been most popular as a personal authentication method using physical characteristics, but there are problems of authentication failure and counterfeiting due to the physical state of the finger (such as sweat or oil adhesion). On the other hand, in recent years, personal authentication technology using the palm, the back of the hand, and the blood vessel (vein) pattern of the finger has been developed (for example, Patent Document 1 below).

JP-A-10-295664

  However, in the conventional personal authentication device, an image captured from one direction is image-processed to extract a blood vessel pattern necessary for authentication, and authentication is performed depending on imaging conditions and individual differences. This led to a decrease in the authentication rate, such as a small amount of data.

  Therefore, an object of the present invention is to provide a personal authentication device with an authentication rate improved compared to the prior art.

Means and effects for solving the problems

  The personal authentication device of the present invention is arranged at a position opposite to the irradiation unit, a finger insertion unit that inserts the finger of the person to be authenticated, an irradiation unit that irradiates the finger insertion unit with near infrared rays from two or more directions. An imaging unit that captures a near-infrared vein image transmitted through the finger inserted into the finger insertion unit from two or more directions, and an information processing unit that processes the vein image captured by the imaging unit as information. The information processing unit recognizes and combines a two-dimensional vein pattern in each direction based on the vein image, and generates authentication data; the authentication data; Collating means for collating with the registered data of the person to be authenticated registered.

  According to the above configuration, since the two-dimensional vein pattern in each direction is recognized and combined, authentication data in which data necessary for authentication is increased can be generated. As a result, it is possible to provide a personal authentication device with an improved authentication rate than before.

  In the personal authentication device of the present invention, it is preferable that the authentication data generation means generates superimposed vein pattern data by superimposing the vein patterns. As another aspect, in the personal authentication device of the present invention, the authentication data generation means is extracted by a feature point extraction means for extracting a plurality of feature points for each of the vein patterns and the feature point extraction means. Superimposing feature point data generation means for generating superimposed feature point data by superimposing feature points may be included. At this time, it is preferable that the feature point extracting means extracts an end portion or / and an intersection of the vein pattern as a feature point, and further generates an intersection by superimposing the vein patterns, and the intersection is also a feature. More preferably, it is extracted as a point.

  With the above configuration, authentication data in which data necessary for authentication has been reliably increased can be generated. As a result, it is possible to more reliably provide a personal authentication device with an improved authentication rate than before.

  In the personal authentication device of the present invention, a data storage means capable of storing data, and a registration means for registering authentication data generated by the authentication data generation means in the data storage means as registration data of the person to be authenticated It is preferable to further comprise.

  With the above configuration, authentication data for the authentication subject can be generated on the spot and registered in the data storage means, so that the authentication subject can use the data immediately after registering the authentication data.

  In the personal authentication device of the present invention, it is preferable that a guide for placing a finger other than the finger to be imaged is provided in the finger insertion portion in order to suppress rotation of the finger inserted into the finger insertion portion.

  With the above-described configuration, it is possible to prevent a finger from being imaged from being displaced, so that more accurate personal authentication can be performed.

  In the personal authentication device of the present invention, it is preferable that a filter that transmits only near infrared light is provided between the finger of the person to be authenticated in the finger insertion unit and the imaging unit.

  With the above configuration, only near infrared rays are transmitted and light of other wavelengths is not transmitted, so that it is possible to perform personal authentication with higher accuracy.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described based on the drawings. FIG. 1 is a schematic cross-sectional view of a finger insertion unit in the personal authentication device according to the first embodiment of the present invention. FIG. 2 is a block diagram illustrating a relationship between the control device and management device of the personal authentication device, the camera, and the light source according to the first embodiment of the present invention.

  The personal authentication device according to the present embodiment includes a finger insertion unit 1, a control device 11 that controls cameras 2 and 3 and light sources 4 and 5, which will be described later, and a management device 12 that outputs a result of the control device 11. have.

  The finger insertion part 1 is a rectangular tube-shaped member made up of plate-like transparent members 1a and 1b and plate-like filters 1c and 1d that transmit only near-infrared rays. It is formed to become. As a modification of the shape of the finger insertion portion 1, instead of the plate-like transparent members 1a and 1b and the filters 1c and 1d, members that are made of the same material and have a cylindrical shape when combined are used. It may be used. Of course, it is formed so that the finger 6 can be easily inserted at this time.

  Each of the cameras 2 and 3 is a CCD camera having sensitivity to near-infrared rays, and is arranged so that the lens faces the finger 6 so that the vein pattern of the finger 6 can be captured. Specifically, the camera 2 is disposed so that the lens faces the side of the finger 6 and the camera 3 faces the abdomen of the finger 6, and the direction of the camera 2 and the direction of the camera 3 intersect each other at 90 °. Yes. As a modification, the cameras 2 and 3 may be CMOS type cameras.

  The light sources 4 and 5 are LEDs capable of emitting near-infrared rays, respectively, so that the irradiation direction faces the cameras 2 and 3, and with the cameras 2 and 3, the finger insertion part 1 is sandwiched between them. It is arranged. Specifically, the camera 2 and the light source 4 are arranged so that the vein pattern can be imaged from the side of the finger 6, and the camera 3 and the light source 5 can be imaged from the finger 6 abdomen. It is installed.

  The control device 11 includes a CPU 13 that performs a control operation according to a preset program, a storage unit 14 (data storage unit) that can store data, a display output unit 15 that can display a verification result of personal authentication, and the person to be authenticated. For example, an operation input unit 16 capable of inputting an operation such as a password, an image input I / F (interface) 17 for capturing an image from the cameras 2 and 3, and a light source control I / F for controlling the light sources 4 and 5. F18 and a result output I / F 19 that can output a personal authentication verification result signal processed by the control device 11.

  The CPU 13 is connected to a program ROM and a control RAM (not shown) and forms a so-called microcomputer (not shown) together with these. The ROM stores various control commands (commands) to be transmitted to each unit. As the command, for example, (1) after irradiating near infrared rays from the light sources 4 and 5, the vein pattern of the finger 6 is imaged by the cameras 2 and 3, and these data are combined to generate authentication data. Command (authentication data generation means), (2) a command (verification means) relating to processing for verifying authentication data and registration data of an already-authenticated person, (3) generated authentication data , A command (registration means) relating to processing to be registered in the storage unit 14 as registration data of the person to be authenticated, (4) a command relating to processing for assigning a registration ID number to the registration processing of (3), and (5) finger 6 is inserted by a finger A command related to a process for determining whether or not it has been inserted into the section 1 and (6) a command related to display control for the display output section 15 are stored.

  In the command (1) relating to the generation of authentication data, the vein patterns are superimposed to generate superimposed vein pattern data.

  The various commands described above are called from the ROM by the CPU 13 and set in the RAM when a predetermined condition is met. Then, the command set in the RAM is supplied to a portion to be controlled such as the display output unit 15 at a predetermined timing. Each unit executes various processes based on the supplied command.

  The storage unit 14 stores the authentication data generated as described above by the above-described microcomputer as registration data of the person to be authenticated, and information is stored during verification for personal authentication. It is to be pulled out.

  The management device 12 receives the result of the personal authentication output from the control device 11, and issues other control (for example, permission to enter the predetermined room to the person to be authenticated, and opens the door). This is the part where the lock is performed. The management device 12 may be a so-called personal computer.

  In addition, a guide (not shown) for placing a finger other than the finger to be imaged is provided in the finger insertion unit 1 in order to suppress rotation of the finger inserted into the finger insertion unit 1. Examples of the guide include those that can be placed with the palms open, and those that can be placed with only the target finger extended and the other fingers forming a fist. Thereby, since the shift | offset | difference of the finger to image can be prevented, more accurate personal authentication can be performed.

  Next, the registration process of the personal data of the target person and the verification process of the authentication target person in the personal authentication apparatus of the present embodiment will be described.

(Personal data registration process for the subject)
When the process of registering the personal data of the subject is executed by the microcomputer described above, as shown in the process routine of FIG. 3, the registration process is initialized (A1), and then the registration ID number is 1. (A2). Next, whether or not the subject's finger 6 has been inserted into the finger insertion unit 1 is determined by the above-described microcomputer based on a signal transmitted from a finger detector (not shown) (A3). As the finger detector, a device composed of a simple switch that reacts when touched by a finger, a device that can determine whether or not a finger has been inserted by detecting a change by constantly monitoring an image in the finger insertion unit 1, and the like are used. It is done.

  Next, when it is determined by the finger detector that the finger has not been inserted (A3, NO), it is determined again whether or not the subject's finger has been inserted into the finger insertion unit 1. When it is determined that the subject's finger 6 has been inserted (A3, YES), execution is shifted to a process of imaging the finger 6 from two directions with the cameras 2 and 3 (A4). In this processing, a vein image transmitted through the finger 6 by near infrared rays emitted from the light sources 4 and 5 according to a command via the light source control I / F 18 is detected by the cameras 2 and 3 and is converted into an image signal by the image input I / F 17. After fetching, a process of temporarily storing and storing in the storage unit 14 is executed.

  Subsequently, a vein pattern as shown in FIGS. 4A and 4B is extracted from each of the image signals stored and accumulated in the storage unit 14 (A5). Thereafter, the vein patterns as shown in FIGS. 4A and 4B are superimposed to generate authentication data (superimposed vein pattern data) shown in FIG. 4C (A6).

  Then, execution proceeds to a process of registering (storing) the authentication data generated as described above in the storage unit 14 as registration data associated with the registration ID number (A7), and the process ends.

(Verification process of the person to be authenticated)
When the verification process of the person to be authenticated is executed by the microcomputer, the verification process is initialized as shown in the processing routine of FIG. 5 (B1). Next, whether or not the subject's finger 6 has been inserted into the finger insertion unit 1 is determined by the above-described microcomputer based on a signal transmitted from the above-described finger detector (not shown) (B2). . When it is determined that it has not been inserted (B2, NO), it is initialized (B1), and it is again determined whether or not the subject's finger has been inserted into the finger insertion unit 1. When it is determined that the subject's finger 6 has been inserted (B2, YES), execution is shifted to processing for imaging the finger 6 from two directions with the cameras 2 and 3 (B3). From Step B3 to Step B5, the same processing as Step A4 to Step A6 in the registration processing of the personal data of the subject described above is executed.

  Then, the authentication data generated in step B5 and the registration process of the personal data of the target person described above are executed in the determination process (collation process) for determining whether or not the registered data already matches. Transferred (B6). If it is determined that they do not match (B6, NO), the process starts again from the beginning, and execution is shifted to initialization of the registration process (B1). When it is determined that they match (B6, YES), execution is shifted to a process of outputting the result to the management apparatus via the result output I / F 19 (B7), and other control associated therewith is performed in the management apparatus. Is called. Then, after returning to the beginning, execution is shifted to the initialization process of the registration process, and the state (B2) in which the access of another person to be authenticated is awaited (a finger can be detected) can be set.

  According to the present embodiment, since the two-dimensional vein pattern in each direction is recognized and combined, authentication data in which data necessary for authentication has been reliably increased can be generated. As a result, it is possible to provide a personal authentication device with an improved authentication rate than before.

  In addition, since authentication data for the authentication target person can be generated and registered in the data storage means on the spot, the authentication target person can use the data immediately after registering the authentication data.

  In addition, since filters 1c and 1d that transmit only near infrared rays are provided between the finger 6 of the person to be authenticated and the cameras 2 and 3 in the finger insertion unit 1, only near infrared rays are transmitted, and other wavelengths are transmitted. Therefore, it is possible to perform personal authentication with higher accuracy.

<Variation 1 of the first embodiment>
Next, a personal authentication device according to Modification 1 of the first embodiment of the present invention will be described.

  The personal authentication device according to the present embodiment includes a feature point extraction unit in which the authentication data generation unit extracts a plurality of feature points for each vein pattern in the registration process of the personal data of the target person and the verification process of the authentication target person. The present embodiment is different from the personal authentication device of the first embodiment in that it has superimposition feature point data generation means for generating superimposition feature point data by superimposing the feature points extracted by the feature point extraction means. Note that the feature point extraction means uses the end portions and intersection portions of each vein pattern as feature points. The program ROM (not shown) further includes a command related to processing for extracting a plurality of feature points for each vein pattern and a command related to processing for generating superimposed feature point data by superimposing the extracted feature points. This is different from the personal authentication device of the first embodiment. Specifically, a personal data registration process and an authentication target verification process as described later are performed. For convenience, the same reference numerals are used for the same parts as those of the personal authentication device of the first embodiment.

(Personal data registration process for the subject)
When the process of registering the personal data of the subject is executed by the microcomputer described above, as shown in the process routine of FIG. 6, the registration process is initialized (C1), and then the registration ID number is 1. (C2). Next, whether or not the subject's finger 6 has been inserted into the finger insertion unit 1 is determined by the above-described microcomputer based on a signal transmitted from a finger detector (not shown) (C3). As the finger detector, a device composed of a simple switch that reacts when touched by a finger, a device that can determine whether or not a finger has been inserted by detecting a change by constantly monitoring an image in the finger insertion unit 1, and the like are used. It is done.

  Next, when it is determined by the finger detector that the finger has not been inserted (C3, NO), it is determined again whether or not the subject's finger has been inserted into the finger insertion unit 1. When it is determined that the subject's finger 6 has been inserted (C3, YES), execution is shifted to processing for imaging the finger 6 from two directions with the cameras 2 and 3 (C4). In this processing, a vein image transmitted through the finger 6 by near infrared rays emitted from the light sources 4 and 5 according to a command via the light source control I / F 18 is detected by the cameras 2 and 3 and is converted into an image signal by the image input I / F 17. After fetching, a process of temporarily storing and storing in the storage unit 14 is executed.

  Subsequently, vein patterns as shown in FIGS. 7A and 7B are extracted from each of the image signals stored and accumulated in the storage unit 14 (C5), and feature points (for example, blood vessels) are obtained for each vein pattern. A plurality of data (points such as A (x, y) and J (x, y) shown in FIGS. 7A and 7B) are extracted. (C6). Thereafter, the vein pattern feature points as shown in FIGS. 7A and 7B are superimposed to generate authentication data (superimposition feature point data) as shown in FIG. 7C (C7).

  Then, execution proceeds to a process of registering (storing) the authentication data generated as described above in the storage unit 14 as registration data associated with the registration ID number (C8), and ends.

(Verification process of the person to be authenticated)
When the verification process for the person to be authenticated is executed by the microcomputer, the verification process is initialized as shown in the processing routine of FIG. 8 (D1). Next, whether or not the subject's finger 6 has been inserted into the finger insertion unit 1 is determined by the above-described microcomputer based on the signal transmitted from the above-described finger detector (not shown) (D2). . When it is determined that it has not been inserted (D2, NO), it is initialized (D1), and it is determined again whether or not the subject's finger has been inserted into the finger insertion unit 1. When it is determined that the subject's finger 6 has been inserted (D2, YES), execution is shifted to the process of imaging the finger 6 from two directions with the cameras 2 and 3 (D3). From Step D3 to Step D6, the same processing as Step C4 to Step C7 in the above-described personal data registration processing of the subject is executed.

  Then, the authentication data generated in step D6 and the registration processing of the personal data of the target person described above are executed in the determination processing (collation processing) whether or not the registration data already registered matches. Transitioned (D7). If it is determined that they do not match (D7, NO), the process starts again from the beginning, and execution is shifted to initialization of the registration process (D1). When it is determined that they match (D7, YES), execution is shifted to a process of outputting the result to the management apparatus via the result output I / F 19 (D8), and other control associated therewith is performed in the management apparatus. Is called. Thereafter, returning to the beginning, after execution is shifted to the initialization process of the registration process, the state (D2) in which the access of another person to be authenticated is waited (a finger can be detected) can be set.

  According to this modification, the same effect as that of the first embodiment can be obtained, and a personal authentication device with higher authentication accuracy than that of the first embodiment can be provided. Note that this modification can also be applied to personal authentication devices according to second and third embodiments described later.

<Modification 2 of the first embodiment>
Next, a personal authentication device according to Modification 2 of the first embodiment of the present invention will be described. In addition, description may be abbreviate | omitted about the part similar to the modification 1 of 1st Embodiment.

  In the personal authentication device of this modification, in the registration process of the personal data of the subject person and the verification process of the subject person of authentication, the feature point extraction means uses the end and intersection of the vein pattern as feature points, It is different from the personal authentication device of the first embodiment in that an intersection is further generated by superimposing and this new intersection is also extracted as a feature point. Another difference is that the program ROM (not shown) further includes a command for generating a further intersection by overlapping vein patterns and extracting the new intersection as a feature point. Specifically, the following processing is performed. For convenience, the same reference numerals are used for the same parts as those of the personal authentication device of the first embodiment.

  This modification is (1) a plurality of data representing feature points (for example, coordinate values of branching points of blood vessels, branching directions, etc.) for each vein pattern of Modification 1 in the process of registering personal data of the subject. (Points such as A (x, y) and J (x, y) shown in FIGS. 7A and 7B) are extracted (FIG. 6: C6), and further shown in FIG. 7C. The authentication data (F (x, y), Q (x, y) shown in FIG. 9) further added as a feature point is an intersection formed when the feature points of the vein pattern are superimposed. (Superimposition feature point data) is generated, and (2) in the verification process of the person to be authenticated, the authentication data generated in (1) is used for verification, which is different from Modification 1 of the first embodiment. .

  According to this modified example, the same effects as those of the first embodiment and the modified example 1 can be obtained, and the number of feature points is further increased. Therefore, a personal authentication device with higher authentication accuracy than these can be provided. Note that this modification can also be applied to personal authentication devices according to second and third embodiments described later.

Second Embodiment
Next, a personal authentication device according to the second embodiment of the present invention will be described. FIG. 10 is a schematic cross-sectional view of the finger insertion unit in the personal authentication device according to the second embodiment of the present invention. Note that parts similar to those in the first embodiment are denoted by the same reference numerals in the first place, and description thereof may be omitted. However, the different parts will be described later.

  The personal authentication device of the present embodiment is (1) a point that uses a light blocking member 21a instead of the transparent member 1a, (2) a point that uses a transmissive member 21d instead of the filter 1d, and (3) the position of the camera. Are arranged symmetrically with respect to the center diagonally below the abdominal surface of the finger (see cameras 22 and 23 in FIG. 9), and (4) the light sources 24 and 25 are at positions facing the cameras 22 and 23. Thus, the finger 26 is arranged at a position where it can irradiate near infrared rays, and is different from the personal authentication device of the first embodiment.

  According to the personal authentication device of this embodiment, the same operational effects as those of the first embodiment can be obtained. Moreover, since the light shielding member 21a is used, the intrusion of external light can be suppressed, and more accurate personal authentication can be performed.

<Third Embodiment>
Next, a personal authentication apparatus according to the third embodiment of the present invention will be described. FIG. 11 is a schematic cross-sectional view of the finger insertion unit in the personal authentication device according to the third embodiment of the present invention. Note that parts similar to those in the first embodiment are denoted by the same reference numerals in the first place, and description thereof may be omitted. However, the different parts will be described later.

  The personal authentication device of the present embodiment is (1) the point that the light shielding member 31a is used instead of the transparent member 1a, (2) the point that the filter 31b is used instead of the transmission member 1b, and (3) the filter 1c. The point which uses the light shielding member 31c instead, (4) The point which has arrange | positioned the position of the camera in the position of the camera 33 (the side of a finger | toe, and the position which opposes the camera 32), (5) Light sources 34 and 35 And the personal authentication device of the first embodiment is that the finger 26 is irradiated with near-infrared rays and is disposed at the upper position of each of the cameras 33 and 32. Is different.

  According to the personal authentication device of this embodiment, the same operational effects as those of the first embodiment can be obtained. In addition, since the light shielding members 31a and 31c are used, the intrusion of external light can be suppressed, and more accurate personal authentication can be performed.

  The present invention can be changed in design without departing from the scope of the claims, and is not limited to the above-described embodiments and modifications. For example, in the modification of the first embodiment described above, the end points of the vein pattern and intersections when they are superimposed are used as feature points. However, any feature portion of the vein pattern (for example, the end and end portions of the vein pattern) One point in the middle between the points may be used as a feature point.

It is a schematic structure sectional view of the finger insertion part in the personal authentication device concerning a 1st embodiment of the present invention. It is a block diagram which shows the relationship between the control apparatus and management apparatus of a personal authentication apparatus which concern on 1st Embodiment of this invention, and a camera and a light source. It is a flowchart in the registration processing routine of the personal data of the person to be authenticated according to the first embodiment. In the first embodiment, (a) is a vein pattern on the abdominal surface of the finger, (b) is a vein pattern on the side surface of the finger, and (c) is authentication data created by superimposing (a) and (b). FIG. It is a flowchart in the collation process routine of the authentication subject who concerns on 1st Embodiment. It is a flowchart in the registration process routine of the authentication subject person's personal data which concerns on the modification 1 of 1st Embodiment. In Modification 1 of the first embodiment, (a) is a vein pattern on the abdominal surface of the finger, (b) is a vein pattern on the side surface of the finger, and (c) is produced by superimposing (a) and (b). It is a figure which shows the data for authentication. It is a flowchart in the collation process routine of the authentication subject person which concerns on the modification 1 of 1st Embodiment. It is a figure which shows the data for authentication which concern on the modification 2 of 1st Embodiment. It is a schematic structure sectional view of a finger insertion part in a personal authentication device concerning a 2nd embodiment of the present invention. It is a schematic structure sectional view of a finger insertion part in a personal authentication device concerning a 3rd embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Finger insertion part 1a, 1b, 21b, 21d Transmission member 1c, 1d, 21c, 31b, 31d Filter 2, 3, 22, 23, 32, 33 Camera 4, 5 Light source 6, 26, 36 Finger 11 Control apparatus 12 Management Device 13 CPU
14 Storage unit 15 Display output unit 16 Operation input unit 17 Image input I / F
18 Light source control I / F
19 Result output I / F
21a, 31a, 31c Light shielding member

Claims (8)

A finger insertion part for inserting the finger of the person to be authenticated;
An irradiation unit that irradiates near-infrared rays from two or more directions to the finger insertion unit;
An imaging unit that is disposed at a position facing the irradiation unit and that captures a vein image by near infrared rays transmitted through a finger inserted into the finger insertion unit from two or more directions;
An information processing unit that processes the vein image captured by the imaging unit as information;
The information processing unit
Based on the vein image, authentication data generation means for generating authentication data by recognizing and combining a two-dimensional vein pattern in each direction;
A personal authentication apparatus, comprising: a verification unit that performs verification between the authentication data and the registered data of the person to be authenticated that has already been registered.   2. The personal authentication apparatus according to claim 1, wherein the authentication data generating means generates superimposed vein pattern data by superimposing the vein patterns.   The authentication data generating means superimposes the feature point extracting means for extracting a plurality of feature points for each of the vein patterns and the feature points extracted by the feature point extracting means to generate superimposed feature point data. The personal authentication apparatus according to claim 1, further comprising a feature point data generation unit.   4. The personal authentication apparatus according to claim 3, wherein the feature point extraction unit extracts an end portion or / and an intersection of the vein pattern as a feature point.   5. The personal authentication apparatus according to claim 4, wherein the feature point extracting unit further generates an intersection by superimposing the vein patterns and extracts the intersection as a feature point. Data storage means capable of storing data;
6. The apparatus according to claim 1, further comprising registration means for registering the authentication data generated by the authentication data generation means in the data storage means as registration data of the person to be authenticated. The personal authentication device according to claim 1.   The guide for placing a finger other than the finger to be imaged is provided in the finger insertion portion in order to suppress rotation of the finger inserted into the finger insertion portion. The personal authentication device described in 1.   8. The individual according to claim 1, wherein a filter that transmits only near infrared rays is provided between the finger of the person to be authenticated in the finger insertion unit and the imaging unit. Authentication device.

Images