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
reading device
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
Original Assignee
Mitsubishi Electric Corp
三菱電機株式会社
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, 三菱電機株式会社 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

Abstract

A personal authentication device capable of performing biometric authentication without touching a guide or a reading device is obtained.
A light source 2 having a plurality of point light sources arranged in a matrix, a lens 5 for reading a fingerprint image, and a plurality of reading areas arranged in a matrix corresponding to the plurality of point light sources. And a reading device 1 for reading a fingerprint image transmitted through the finger from the light source 2 through the lens 5 and a control unit 6 for performing fingerprint registration or collation based on reading data of the fingerprint image by the reading device 1. The controller 6 detects 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.
[Selection] Figure 1

Description

  The present invention relates to a personal authentication apparatus that performs authentication using a finger such as a fingerprint or a finger vein.

  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.

JP 2003-85538 A JP 2001-167255 A

  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.

  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.

  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.

  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.

  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. .

  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.

  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.

  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.

  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).

  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.

  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.

It is a block diagram which shows the structure of the personal authentication apparatus which concerns on embodiment of this invention. It is explanatory drawing of the structure of the light source 2 and the reader 1 which are shown in FIG. It is a flowchart explaining the operation | movement at the time of registration and collation by the control part 6 shown in FIG.

Explanation of symbols

  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)

  1. 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.
  2. 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
KR101773030B1 (en) Method of controlling an electronic device
US20170032115A1 (en) Electronic device switchable to a user-interface unlocked mode based upon spoof detection and related methods
US9721137B2 (en) Method and apparatus for fingerprint image reconstruction
US20180285616A1 (en) Finger guide device with switch
KR100919339B1 (en) Personal identification apparatus
EP0976087B1 (en) Biometric recognition using a master pattern set
KR100727862B1 (en) Guidance screen control method of biometrics authentication device, biometrics authentication device, and recording medium containing program for the same
US7526111B2 (en) Personal identification device and method
US6504945B1 (en) System for promoting correct finger placement in a fingerprint reader
EP1708135B1 (en) Authenticator using organism information
JP4640295B2 (en) Personal authentication apparatus and method
TWI407377B (en) Biometric information processing device
JP2016530602A (en) Improving user authentication or improving user authentication
KR101529033B1 (en) Electronic device comprising minimum sensing area and fingerprint information processing method thereof
US9672406B2 (en) Touchless fingerprinting acquisition and processing application for mobile devices
JP4095659B2 (en) Vein authentication device
JP3559754B2 (en) Fingerprint authentication device
JP4675660B2 (en) Multiple simultaneous biometrics authentication device
US20140056493A1 (en) Electronic device performing finger biometric pre-matching and related methods
US8270729B2 (en) Image authenticating apparatus, image authenticating method, recording medium, electronic device, and circuit substrate
EP1834581B1 (en) Living body feature input device
US7853055B2 (en) Fingerprint verification device
EP1646254B1 (en) Identification and/or authentification method by means of fingerprints
KR101706290B1 (en) Biometric verification device and method
US5818956A (en) Extended fingerprint reading apparatus