WO2008026650A1 - Dispositif d'entrée pour authentification de veine de doigt - Google Patents

Dispositif d'entrée pour authentification de veine de doigt Download PDF

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Publication number
WO2008026650A1
WO2008026650A1 PCT/JP2007/066793 JP2007066793W WO2008026650A1 WO 2008026650 A1 WO2008026650 A1 WO 2008026650A1 JP 2007066793 W JP2007066793 W JP 2007066793W WO 2008026650 A1 WO2008026650 A1 WO 2008026650A1
Authority
WO
WIPO (PCT)
Prior art keywords
finger
light source
joint
input device
light
Prior art date
Application number
PCT/JP2007/066793
Other languages
English (en)
Japanese (ja)
Inventor
Soichi Sakurai
Satoshi Ouchi
Yuichi Horiuchi
Kenichi Yoshida
Original Assignee
Hitachi, Ltd.
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 Hitachi, Ltd. filed Critical Hitachi, Ltd.
Publication of WO2008026650A1 publication Critical patent/WO2008026650A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/83—Protecting input, output or interconnection devices input devices, e.g. keyboards, mice or controllers thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/145—Illumination specially adapted for pattern recognition, e.g. using gratings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/1341—Sensing with light passing through the finger
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/14—Vascular patterns

Definitions

  • the present invention relates to a technique of a finger vein authentication input device that projects finger vein pattern information and is used for personal authentication.
  • Patent Document 1 discloses a light source unit that irradiates transmitted light from the upper surface, an interference filter unit, an imaging unit that captures transmitted light that has passed through the interference filter unit, and a static output that is output from the imaging unit.
  • Patent Document 2 discloses a light source unit that irradiates transmitted light from the upper surface, an interference filter unit, an imaging unit that captures transmitted light that has passed through the interference filter unit, and a static output that is output from the imaging unit.
  • a personal authentication device having a crest image processing unit is described
  • Patent Document 2 describes a device for performing personal authentication using a palm vein pattern using a chip-type near-infrared light emitting diode as a light source.
  • Patent Document 1 JP-A-2004-49705
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2002-92616
  • a light source unit and an imaging unit are arranged so as to sandwich a finger or palm in order to capture a vein pattern by transmitted light. It is the composition which becomes. For this reason, there is a problem that it is difficult to incorporate it in a notebook computer.
  • a light source unit and an imaging unit are arranged in one direction of a finger or palm, and a vein pattern is imaged by imaging scattered light inside the finger or palm. Can be considered. In order to capture a clear vein pattern with such a configuration, it is desirable that the light from the light source part has a large amount of scattered light that enters the palm and scatters inside the finger or palm.
  • An object of the present invention is to provide an authentication device shape or a light source unit arrangement technique that is effective in increasing the amount of light incident on a finger or palm.
  • an object of the present invention is to provide a finger placement technique for an authentication device that reduces variations in finger placement positions in order to improve the accuracy of authentication.
  • a finger vein authentication input device of the present invention for acquiring a finger vein pattern for authentication is provided at a position corresponding to the first joint of the finger when the finger is placed.
  • a first light source that irradiates the first joint with near-infrared light; and a near-infrared light that is provided at a position corresponding to the second joint of the finger when the finger is placed.
  • a portion corresponding to the tip of the finger is provided with a finger placement portion that is inclined downward so that the first joint is bent.
  • the finger placement unit of the finger vein authentication input device of the present invention is configured so that when the finger is placed, the first joint of the finger is placed in a predetermined position.
  • the finger placement surface is composed of a finger placement portion where the finger base side is placed from the first joint and a portion where the finger placement is depressed in the fingertip side from the finger placement portion. This makes it easier to specify the finger placement position.
  • a second light source that irradiates near-infrared light to the second joint of the finger is provided at a position corresponding to the distance from the first joint to the second joint of the finger from the first light source. Also good. Even in this case, since the first joint and the first light source are aligned, it is possible to reliably irradiate near infrared light from the second light source to the second joint.
  • the finger or hand since the amount of incident light on the finger or palm increases, the finger or hand The scattered light inside the palm can be increased, and a clear vein pattern can be imaged. As a result, finger vein images can be acquired with high reproducibility, and high authentication accuracy can be achieved and the authentication apparatus can be downsized.
  • FIG. 1 is a schematic diagram of a main part of a side section of a finger vein authentication input device according to an embodiment of the present invention.
  • 1 is a finger vein authentication input device
  • 2 is an imaging unit
  • 31 and 32 are light source units composed of, for example, near infrared LEDs
  • 41 and 42 are optical conduits.
  • FIG. 1 shows a cross section in the arrangement direction of the imaging unit 2, the light source unit 31, and the light source unit 32.
  • the light source 31 and the light source 32 may be either an LED or a semiconductor laser having a good near-infrared wavelength of an LED having a wavelength of 600 nm to 100 nm. If the light source 31 and the light source 32 are each composed of a plurality of LEDs or semiconductor lasers and the respective central axes of the plurality of LEDs or semiconductor lasers having directional characteristics are shifted from each other, a wide range of fingers 7 can be obtained. Can be irradiated.
  • the optical conduits 41 and 42 have a function of efficiently guiding light emitted from the light source units 31 and 32 to a finger and a function of protecting the light sources 31 and 32, and are made of plastic such as acrylic or glass. It has been.
  • Numerals 51 and 52 are light shielding plates, which serve to block unnecessary rays emitted from the light source units 31 and 32.
  • Reference numeral 6 denotes a filter, which has a role of cutting wavelengths outside the selected region.
  • the human finger 7 is placed on the finger vein authentication input device 1, and the near infrared light emitted from the light source unit 31 enters the finger from the first joint 91 of the finger 7.
  • the incident near-infrared light scatters and propagates inside the finger 7.
  • the vein pattern can be imaged by imaging the near-infrared light scattered inside the finger and emitted outside the finger.
  • near-infrared light emitted from the inside of the finger is imaged by the imaging unit 2 through the filter 6.
  • the vein pattern obtained as described above is shown in the figure! /,! /, And the authentication control unit compares it with the vein pattern recorded and recorded in advance for each individual, and in the case of a predetermined correlation rate. Authenticated as a registrant.
  • the structure is such that the fingertip part has a component force from 91 and the other part of the finger 7 falls linearly at a predetermined angle from the other part of the finger.
  • the placement position of the finger 7 is specified, and the finger 1 is placed with the finger shape close to the natural body of the finger. You get a turn.
  • the first joint 91 surrounds the light source 31, more light can be taken into the finger 7 from the light source 31, and a clear vein pattern can be obtained.
  • the first joint 91 can be fixed at the position of the light source 31, it has a great advantage that the imaging position accuracy in the longitudinal direction of the vein pattern is remarkably improved.
  • vein pattern obtained by the imaging unit 2 is clearer.
  • the authentication information increases and the authentication accuracy can be improved.
  • the amount of light emitted from the light source 31 to the inside of the finger 7 is increased, a clearer vein pattern can be obtained, the propagation distance of scattered light inside the finger is increased, and the area of the vein pattern is increased. .
  • the light source 32 is provided at a position corresponding to the second joint 92 of the finger, and the vein pattern of the finger portion sandwiched between the light source 31 and the light source 32 is obtained. It is set as the structure which images. As a result, a vein pattern in the range from the first joint 91 to the second joint 92 of the finger can be imaged, and the authentication accuracy can be improved.
  • near-infrared light can be incident from two light sources, so the necessary propagation distance of near-infrared light from one light source can be shortened, so that the light emission power of the light source can be reduced and the life of the light source can be extended. .
  • the light source 32 is installed at a position corresponding to the distance from the first joint 91 to the second joint 92 of the finger from the light source 31.
  • the light sources 31, 32 are located at positions other than the joint.
  • the fingertip partial force from the first joint 91 of the finger placement surface 11 is linear at a predetermined angle from the other part of the finger 7 toward the belly of the finger.
  • the first joint 91 of the finger and the light source 31 can be easily aligned with each other. Since the light source 32 is installed at a position corresponding to the distance from the first joint 91 of the finger to the second joint 92, when the finger 7 is placed on the finger installation surface 11, the second joint 92 of the finger naturally matches the light source 32. It will be.
  • the case where the light source 31 is provided at a position corresponding to the first joint 91 and the case where the light source 31 and the light source 32 are provided at positions corresponding to the first joint 91 and the second joint 92 have been described. Since the fingertip portion of the finger placement surface 11 is linearly dropped from the other portion of the finger 7 in the direction of the belly of the finger 7 at a predetermined angle, the finger vein authentication input device 1 for the finger 7 The installation position can be fixed. Therefore, the light source 32 may be provided only at a position corresponding to the second joint 92 of the finger when the finger 7 is installed.
  • the finger placement surface effective for reducing variation in the position of the finger 7 on the finger vein authentication input device 1 and acquiring a clear vein pattern 11 Explain other shapes. 2 to 4 and 1 have the same function.
  • FIG. 2 shows the finger placement surface 11 of the finger vein authentication input device 1 in which the finger placement surface that contacts the fingertip portion from the first joint 91 falls in a curved shape from the other finger placement surface 11 portion of the finger 7. ! /.
  • FIG. 3 is characterized in that the mounting position 12 of the light source 31 protrudes in the direction of the finger 7 from the finger installation surface 11 and is set higher.
  • the light source 31 is closer to the first joint 91, so that the accuracy of the mounting position of the finger 7 in the longitudinal direction is improved, and the first joint 91 further surrounds the light source 31. Therefore, more light emitted from the light source 31 can be taken into the finger 7.
  • the mounting position 12 of the light source 31 protrudes higher in the direction of the finger 7 than the finger installation surface 11, but similarly, the installation position 12 of the light source 32 is in the direction of the finger 7 more than the finger installation surface 11. You may set it up high.
  • the configuration of FIG. 3 can achieve the same effects as the example of FIG.
  • FIG. 4 shows an example suitable for improving the accuracy of the attachment position of the finger 7 in the longitudinal direction.
  • a major feature of the example shown in FIG. 4 is that a projection plate 13 protruding in the direction of the finger 7 from the finger installation surface 11 is arranged at a position corresponding to the first joint 91.
  • the protruding plate 13 By arranging the protruding plate 13, it is possible to recognize the installation position of the finger based on the thickness of the protruding plate 13, so that the accuracy of the mounting position in the longitudinal direction of the finger 7 fixing the first joint 91 is improved. .
  • the embodiment of the finger vein authentication input device 1 in which the light source and the imaging unit are provided on the palm side of the finger 7 has been described.
  • the configuration in which the surface corresponding to is lower than the surface in contact with the finger 7 can also be applied to a finger vein authentication input device that captures a vein pattern using transmitted light of near infrared light. As a result, the accuracy of finger placement can be improved, and the recognition rate can be improved.
  • FIG. 5 An example will be described with reference to FIG.
  • the same reference numerals as those in FIGS. 1 to 4 have the same functions.
  • the mounting position of the light source 31 and the light source 32 is positioned above the finger 1 and is opposed to the imaging unit 2.
  • the shape of the finger tip of the finger placement surface 11 is the same as in FIG. It falls in a curved shape
  • the structure is not limited to this, but as shown in FIG. 1, the fingertip part force from the first joint 91 of the finger placement surface 11 falls linearly at a predetermined angle from the other part of the finger 7 to the belly direction of the finger. It may be a structure. Further, as shown in FIG. 4, a protruding plate 13 protruding in the direction of the finger 1 from the finger installation surface 11 may be arranged at a position corresponding to the first joint 91.
  • FIG. 1 is a schematic diagram showing a side cross section of a finger vein authentication input device according to a first embodiment of the present invention.
  • FIG. 2 is a schematic view showing a side section according to a second embodiment of the present invention.
  • FIG. 3 is a schematic view showing a side section according to a third embodiment of the present invention.
  • FIG. 4 is a schematic view showing a side section according to a fourth embodiment of the present invention.
  • FIG. 5 is a schematic view showing a side cross section according to a fifth embodiment of the present invention.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Artificial Intelligence (AREA)
  • Physiology (AREA)
  • Medical Informatics (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Image Input (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un dispositif d'entrée pour authentification de veine de doigt, ledit dispositif faisant l'acquisition du motif des veines d'un doigt dans un but d'authentification en utilisant une lumière proche infrarouge. Le dispositif d'entrée comprend, afin d'empêcher une augmentation de la quantité de lumière incidente sur un doigt et une palme et de réduire une variation de la position du doigt, une première source de lumière disposée à une position correspondant à une première articulation d'un doigt lorsque le doigt est mis en place et appliquant une lumière proche infrarouge à la première articulation, une seconde source de lumière disposée à une position correspondant à une seconde articulation du doigt lorsque le doigt est mis en place et appliquant une lumière proche infrarouge à la seconde articulation, une unité d'imagerie disposée entre la première source de lumière et la seconde source de lumière et formant une image d'un motif de veines du doigt par lumière proche infrarouge, et une unité de positionnement du doigt dans laquelle une partie correspondant à l'extrémité du doigt est inclinée vers le bas de manière à ce que la première articulation du doigt soit pliée lorsque le doigt est placé sur l'unité de positionnement du doigt.
PCT/JP2007/066793 2006-08-30 2007-08-29 Dispositif d'entrée pour authentification de veine de doigt WO2008026650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-233044 2006-08-30
JP2006233044A JP4788526B2 (ja) 2006-08-30 2006-08-30 指静脈認証入力装置

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WO2008026650A1 true WO2008026650A1 (fr) 2008-03-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2131322A1 (fr) * 2007-04-04 2009-12-09 Sony Corporation Dispositif d'authentification biométrique
CN101884537A (zh) * 2009-05-14 2010-11-17 索尼公司 静脉成像设备、位移插值方法以及程序

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8494228B2 (en) 2008-04-03 2013-07-23 Kyushu Institute Of Technology Personal authentication method using subcutaneous bloodstream measurement and personal authentication device
FR2972622B1 (fr) * 2011-03-18 2013-03-29 Morpho Capteur de reseaux veineux d'une partie d'un corps vivant
EP2856940B1 (fr) * 2012-05-29 2020-05-06 National University Corporation Kochi University Dispositif d'imagerie des artères, et dispositif et méthode de visualisation des artères
RU173901U1 (ru) * 2016-12-23 2017-09-18 Общество с ограниченной ответственностью "Прософт-Биометрикс" Устройство захвата изображения вен ладони

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003030632A (ja) * 2001-07-19 2003-01-31 Hitachi Ltd 指認証装置
JP2003199729A (ja) * 2002-01-07 2003-07-15 Fuji Xerox Co Ltd 個人識別方法、個人識別装置
JP2004030680A (ja) * 2003-08-11 2004-01-29 Hitachi Ltd 指認証装置
JP2005128936A (ja) * 2003-10-27 2005-05-19 Hitachi Ltd 指認証装置とその指置きガイド
WO2006134669A1 (fr) * 2005-06-13 2006-12-21 Hitachi, Ltd. Dispositif d’authentification de veine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003030632A (ja) * 2001-07-19 2003-01-31 Hitachi Ltd 指認証装置
JP2003199729A (ja) * 2002-01-07 2003-07-15 Fuji Xerox Co Ltd 個人識別方法、個人識別装置
JP2004030680A (ja) * 2003-08-11 2004-01-29 Hitachi Ltd 指認証装置
JP2005128936A (ja) * 2003-10-27 2005-05-19 Hitachi Ltd 指認証装置とその指置きガイド
WO2006134669A1 (fr) * 2005-06-13 2006-12-21 Hitachi, Ltd. Dispositif d’authentification de veine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2131322A1 (fr) * 2007-04-04 2009-12-09 Sony Corporation Dispositif d'authentification biométrique
EP2131322A4 (fr) * 2007-04-04 2011-08-03 Sony Corp Dispositif d'authentification biométrique
US8335353B2 (en) 2007-04-04 2012-12-18 Sony Corporation Biometrics authentication system
CN101884537A (zh) * 2009-05-14 2010-11-17 索尼公司 静脉成像设备、位移插值方法以及程序

Also Published As

Publication number Publication date
JP4788526B2 (ja) 2011-10-05
JP2008054787A (ja) 2008-03-13

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