JP2007193502A - Personal identification device - Google Patents

Personal identification device Download PDF

Info

Publication number
JP2007193502A
JP2007193502A JP2006009909A JP2006009909A JP2007193502A JP 2007193502 A JP2007193502 A JP 2007193502A JP 2006009909 A JP2006009909 A JP 2006009909A JP 2006009909 A JP2006009909 A JP 2006009909A JP 2007193502 A JP2007193502 A JP 2007193502A
Authority
JP
Japan
Prior art keywords
reading
light source
finger
lens
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006009909A
Other languages
Japanese (ja)
Inventor
Naohiko Mitani
尚彦 見谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2006009909A priority Critical patent/JP2007193502A/en
Publication of JP2007193502A publication Critical patent/JP2007193502A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a personal identification device for performing biometric authentication, without touching the guide or the reader. <P>SOLUTION: This personal identification device is provided with a light source 2 configured by arranging a plurality of point light sources in a matrix form; a lens 5 for reading a fingerprint image; a reader 1 having a plurality of reading areas, arranged in a matrix form correspondingly to the plurality of point light sources for reading a fingerprint image, where light from the light source 2 passes via the finger via the lens 5; and a control part 6 for performing fingerprint registration or collation, on the basis of the read data of the fingerprint image by the reader 1. The control part 6 detects the position of the finger, by detecting whether the rays of light from the light source 2 are being interrupted for each reading area of the reading device 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、指紋や指の静脈など指を用いて認証を行う個人認証装置に関するものである。   The present invention relates to a personal authentication apparatus that performs authentication using a finger such as a fingerprint or a finger vein.

従来、指を使った個人認証装置として、指紋の表面が非接触状態になるよう被検体を保持して、爪側から透過光を照射し指紋画像を撮像するもの(例えば、特許文献1参照)や、指を制限部材によって読取許容範囲内に誘導し、光源から光を当てて反射光をセンサで受光するものがある(例えば、特許文献2参照)。これらによれば、指の上部(爪側)の光源から光を当てて、指紋や静脈などの生体情報をセンサに触れることなく非接触で読み取ることが可能であるが、非接触という特徴から指の位置の固定が困難であるためガイドなどに指を当てることで指の位置を固定している。   2. Description of the Related Art Conventionally, as a personal authentication device using a finger, a subject is held such that the surface of the fingerprint is in a non-contact state, and a fingerprint image is captured by irradiating transmitted light from the nail side (see, for example, Patent Document 1) In addition, there is a type in which a finger is guided within a reading allowable range by a limiting member, light is applied from a light source, and reflected light is received by a sensor (for example, see Patent Document 2). According to these, it is possible to read biological information such as fingerprints and veins without touching the sensor by applying light from the light source on the upper part (nail side) of the finger. Since it is difficult to fix the position of the finger, the finger position is fixed by placing the finger on a guide or the like.

特開2003−85538号公報JP 2003-85538 A 特開2001−167255号公報JP 2001-167255 A

しかしながら、従来の個人認証装置では、ガイドなどに指を当てることが必要なため、潔癖症の人などが嫌悪感を感じることがある。   However, in the conventional personal authentication device, since it is necessary to put a finger on the guide or the like, a person with a tidy person may feel disgust.

この発明は上述した点に鑑みてなされたもので、ガイドや読み取り装置に触れることなく生体認証を行うことができる個人認証装置を得ることを目的とする。   The present invention has been made in view of the above-described points, and an object thereof is to obtain a personal authentication device capable of performing biometric authentication without touching a guide or a reading device.

この発明に係る個人認証装置は、複数の点光源をマトリクス状に配置してなる光源と、指紋画像を読み取る為のレンズと、前記複数の点光源に対応してマトリクス状に配置した複数の読み取りエリアを有し、前記レンズを介して前記光源から指を透過した指紋画像を読み取る読取装置と、前記読取装置による指紋画像の読み取りデータに基づいて指紋登録または照合を行う制御部とを備え、前記制御部は、前記読取装置の読み取りエリアごとに前記光源からの光が遮られているか否かを検知することで指の位置を検知することを特徴とする。   The personal authentication device according to the present invention includes a light source having a plurality of point light sources arranged in a matrix, a lens for reading a fingerprint image, and a plurality of readings arranged in a matrix corresponding to the plurality of point light sources. A reading device that has an area and reads a fingerprint image that has passed through a finger from the light source through the lens, and a control unit that performs fingerprint registration or collation based on reading data of the fingerprint image by the reading device, The control unit detects the position of the finger by detecting whether or not light from the light source is blocked for each reading area of the reading device.

この発明によれば、制御部により、読取装置の読み取りエリアごとに光源からの光が遮られているか否かを検知することで光源とレンズとの間に挿入された指の位置を検知することができるため、使用者はガイドや読み取り装置に触れることなく生体認証を行うことができる。   According to this invention, the controller detects the position of the finger inserted between the light source and the lens by detecting whether or not the light from the light source is blocked for each reading area of the reading device. Therefore, the user can perform biometric authentication without touching the guide or the reading device.

図1は、この発明の実施の形態に係る個人認証装置の構成を示すブロック図ある。図1に示される個人認証装置は、指紋を読み取る読取装置1と、指の上部(爪側)から光を当てる光源2と、指と指紋画像を読み取る為のレンズ5との距離を検知する距離センサ3と、レンズ5のピントを合わせるレンズ制御部4と、指紋登録・照合を行う制御部6とを備えており、読取装置1の上にレンズ5があり、さらにその上に光源2がある。   FIG. 1 is a block diagram showing a configuration of a personal authentication apparatus according to an embodiment of the present invention. The personal authentication device shown in FIG. 1 detects a distance between a reading device 1 that reads a fingerprint, a light source 2 that shines light from an upper part (nail side) of the finger, and a lens 5 that reads the fingerprint image. A sensor 3, a lens control unit 4 that focuses the lens 5, and a control unit 6 that performs fingerprint registration and collation are provided. The lens 5 is provided on the reading device 1, and the light source 2 is provided thereon. .

図1に示される個人認証装置においては、光源2とレンズ5との間に指を入れ、光源2から指を透過した光をレンズ5でピントを合わせて読取装置1にて指紋画像を読み取り、制御部6は、その読み取りデータに基づいて指紋登録・照合を行うようになされている。また、制御部6は、読取装置1の読み取りエリアごとに光源2からの光が遮られているか否かを検知することで指の位置を検知する機能を有する。さらに、制御部6は、距離センサ3により検知された距離に合わせてレンズ制御部4によりレンズ5のピントを制御するようになされている。   In the personal authentication device shown in FIG. 1, a finger is placed between the light source 2 and the lens 5, the light transmitted through the finger from the light source 2 is focused on the lens 5, and the fingerprint image is read by the reading device 1. The control unit 6 performs fingerprint registration / collation based on the read data. The control unit 6 has a function of detecting the position of the finger by detecting whether or not the light from the light source 2 is blocked for each reading area of the reading device 1. Further, the control unit 6 controls the focus of the lens 5 by the lens control unit 4 in accordance with the distance detected by the distance sensor 3.

ここで、前記光源2と前記読取装置1は、図2に示す構成を備える。すなわち、図2に示すように、前記光源2は、複数の点光源2(1,1)〜2(M,N)をマトリクス状に配置した構成でなり、また、レンズ5を介して指紋画像を読み取る読取装置1は、複数の点光源2(1,1)〜2(M,N)に対応してマトリクス状に配置した読み取りエリア1(1,1)〜1(M,N)を有する構成でなる。   Here, the light source 2 and the reading device 1 have the configuration shown in FIG. That is, as shown in FIG. 2, the light source 2 has a configuration in which a plurality of point light sources 2 (1, 1) to 2 (M, N) are arranged in a matrix, and a fingerprint image via the lens 5. 1 has reading areas 1 (1, 1) to 1 (M, N) arranged in a matrix corresponding to a plurality of point light sources 2 (1, 1) to 2 (M, N). Consists of configuration.

次に、前記制御部6による登録・照合時の動作を図4に示すフローチャートを参照して説明する。照合する際は、まず、光源2の全ての点光源2(1,1)〜2(M,N)を暗く点灯(暗点灯)し、距離センサ3を起動する(ステップS1)。使用者がレンズ5と光源2の間に指を入れると、光が指に遮られる部分が検知できる(ステップS2)。光源2の点光源2(1,1)〜2(M,N)に対する読取装置1の読み取りエリア1(1,1)〜1(M,N)ごとに光源2の光が遮られているかどうかを検知し、光が遮られている部分は指があるということなので、対応する点光源を明るく点灯(明点灯)する。光が遮られていない部分は指がないということなので、暗点灯のままとする(ステップS3〜S9)。これにより、読取装置1のどの読み取りエリアに指があるかを検知することができる。   Next, the operation at the time of registration / collation by the control unit 6 will be described with reference to the flowchart shown in FIG. When collating, first, all point light sources 2 (1, 1) to 2 (M, N) of the light source 2 are lit darkly (darkly lit), and the distance sensor 3 is activated (step S1). When the user puts a finger between the lens 5 and the light source 2, a portion where the light is blocked by the finger can be detected (step S2). Whether the light of the light source 2 is blocked in each of the reading areas 1 (1, 1) to 1 (M, N) of the reading device 1 with respect to the point light sources 2 (1, 1) to 2 (M, N) of the light source 2 Since the part where the light is blocked is a finger, the corresponding point light source is lit brightly (brightly lit). Since there is no finger in the part where the light is not blocked, the light is left dark (steps S3 to S9). Thereby, it is possible to detect which reading area of the reading device 1 has the finger.

次に、距離センサ3によってレンズ5と指との間の距離を計測し、距離に合わせてレンズ5のピントを合わせる(ステップS10〜S11)。指の位置を検知し、ピントが合ったら、その画像により指紋データの登録または照合を行う(ステップS12〜S13)。   Next, the distance between the lens 5 and the finger is measured by the distance sensor 3, and the lens 5 is focused according to the distance (steps S10 to S11). When the position of the finger is detected and in focus, fingerprint data is registered or verified based on the image (steps S12 to S13).

従って、上記実施の形態によれば、制御部6により、読取装置1の読み取りエリアごとに光源2からの光が遮られているか否かを検知することで光源2とレンズ5との間に挿入された指の位置を検知することができるため、使用者はガイドや読取装置1に触れることなく生体認証を行うことができる。   Therefore, according to the above-described embodiment, the control unit 6 inserts between the light source 2 and the lens 5 by detecting whether or not the light from the light source 2 is blocked for each reading area of the reading device 1. Therefore, the user can perform biometric authentication without touching the guide or the reading device 1.

また、距離センサ3により検知された距離に合わせてレンズ5のピントを制御することで、指の位置、読取装置1との距離に関係なく、鮮明な指の画像を得ることが可能となる。   Further, by controlling the focus of the lens 5 in accordance with the distance detected by the distance sensor 3, a clear finger image can be obtained regardless of the position of the finger and the distance to the reading device 1.

この発明の実施の形態に係る個人認証装置の構成を示すブロック図ある。It is a block diagram which shows the structure of the personal authentication apparatus which concerns on embodiment of this invention. 図1に示す光源2と読取装置1の構成の説明図である。It is explanatory drawing of the structure of the light source 2 and the reader 1 which are shown in FIG. 図1に示す制御部6による登録・照合時の動作を説明するフローチャートである。It is a flowchart explaining the operation | movement at the time of registration and collation by the control part 6 shown in FIG.

符号の説明Explanation of symbols

1 読取装置、1(1,1)〜1(M,N) 読取装置1の読み取りエリア、2 光源、2(1,1)〜2(M,N) 光源2の点光源、3 距離センサ、4 レンズ制御部、5 レンズ、6 制御部。   DESCRIPTION OF SYMBOLS 1 Reading apparatus, 1 (1,1) -1 (M, N) Reading area of reading apparatus 1, 2 Light source, 2 (1,1) -2 (M, N) Point light source of light source 2, 3 Distance sensor, 4 lens control unit, 5 lens, 6 control unit.

Claims (2)

複数の点光源をマトリクス状に配置してなる光源と、
指紋画像を読み取る為のレンズと、
前記複数の点光源に対応してマトリクス状に配置した複数の読み取りエリアを有し、前記レンズを介して前記光源から指を透過した指紋画像を読み取る読取装置と、
前記読取装置による指紋画像の読み取りデータに基づいて指紋登録または照合を行う制御部と
を備え、前記制御部は、前記読取装置の読み取りエリアごとに前記光源からの光が遮られているか否かを検知することで指の位置を検知する
ことを特徴とする個人認証装置。
A light source formed by arranging a plurality of point light sources in a matrix,
A lens for reading fingerprint images;
A reading device that has a plurality of reading areas arranged in a matrix corresponding to the plurality of point light sources, and reads a fingerprint image transmitted through the finger from the light source via the lens;
A control unit that performs fingerprint registration or collation based on reading data of a fingerprint image by the reading device, and the control unit determines whether light from the light source is blocked for each reading area of the reading device. A personal authentication device that detects the position of a finger by detecting it.
請求項1に記載の個人認証装置において、
前記レンズと指との距離を検知する距離センサをさらに備え、
前記制御部は、前記距離センサにより検知された距離に合わせて前記レンズのピントを制御する
ことを特徴とする個人認証装置。
The personal authentication device according to claim 1,
A distance sensor for detecting a distance between the lens and the finger;
The personal authentication device, wherein the control unit controls the focus of the lens in accordance with a distance detected by the distance sensor.
JP2006009909A 2006-01-18 2006-01-18 Personal identification device Pending JP2007193502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006009909A JP2007193502A (en) 2006-01-18 2006-01-18 Personal identification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006009909A JP2007193502A (en) 2006-01-18 2006-01-18 Personal identification device

Publications (1)

Publication Number Publication Date
JP2007193502A true JP2007193502A (en) 2007-08-02

Family

ID=38449163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006009909A Pending JP2007193502A (en) 2006-01-18 2006-01-18 Personal identification device

Country Status (1)

Country Link
JP (1) JP2007193502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9773151B2 (en) 2014-02-06 2017-09-26 University Of Massachusetts System and methods for contactless biometrics-based identification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9773151B2 (en) 2014-02-06 2017-09-26 University Of Massachusetts System and methods for contactless biometrics-based identification

Similar Documents

Publication Publication Date Title
JP4599320B2 (en) Fingerprint authentication device, biometric finger determination device, and biometric finger determination method
JP5186929B2 (en) Authentication imaging device
JP5034359B2 (en) Image authentication apparatus, image authentication method, image authentication program, recording medium, and electronic device
JP5930166B2 (en) False finger discrimination device
TWI390451B (en) Registration device, registration method, authentication device and authentication method
TW200745970A (en) Biometric information detection using sweep-type imager
JP4640582B2 (en) Collation device, registration device, image correction method, and program
JP2011191838A (en) Finger vein authentication device
JP7103400B2 (en) Bioimaging device, bioimaging method, and program
JP2006285487A (en) Biological information detection apparatus and biological authentication apparatus
JP4675636B2 (en) Fingerprint verification device
JP2007193502A (en) Personal identification device
JP4301877B2 (en) Fingerprint verification device
JP4694352B2 (en) Fingerprint verification device
EP2133821A2 (en) Biological feature input device and biological feature input method
JP2005135114A (en) Fingerprint matching device
JP4728022B2 (en) Image forming apparatus
JP2004280383A (en) Identification device, identification method, computer-readable storage medium and program
JP2006031322A (en) Fingerprint collation device
JP2010061553A (en) Finger vein authentication device
JP2006347026A (en) Image forming apparatus
JP2012221011A (en) Personal authentication device using biological information
JP2007007313A (en) Individual authenticating apparatus
JP2007054264A (en) Personal authentication apparatus and personal authentication display method