WO1998008439A1 - Appareil de prise d'images d'iris - Google Patents

Appareil de prise d'images d'iris Download PDF

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Publication number
WO1998008439A1
WO1998008439A1 PCT/US1997/014873 US9714873W WO9808439A1 WO 1998008439 A1 WO1998008439 A1 WO 1998008439A1 US 9714873 W US9714873 W US 9714873W WO 9808439 A1 WO9808439 A1 WO 9808439A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
illuminator
camera
iris
image
Prior art date
Application number
PCT/US1997/014873
Other languages
English (en)
Inventor
Michael Negin
Thomas A. Chmielewski, Jr.
Robin Sainsbury
Marcos Salganicoff
Keith James Hanna
Robert Mandelbaum
Deepam Mishra
Original Assignee
Sensar, Inc.
The Sarnoff Corporation
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 Sensar, Inc., The Sarnoff Corporation filed Critical Sensar, Inc.
Priority to JP51177498A priority Critical patent/JP2002514098A/ja
Priority to EP97941356A priority patent/EP0959769A1/fr
Priority to CA002264029A priority patent/CA2264029A1/fr
Priority to AU43282/97A priority patent/AU727389B2/en
Publication of WO1998008439A1 publication Critical patent/WO1998008439A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
    • A61B3/1216—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes for diagnostics of the iris
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography
    • A61B3/145—Arrangements specially adapted for eye photography by video means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/117—Identification of persons
    • A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
    • 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
    • G06V40/18—Eye characteristics, e.g. of the iris
    • 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
    • G06V40/18—Eye characteristics, e.g. of the iris
    • G06V40/19—Sensors therefor

Definitions

  • the invention relates to a method and apparatus for illuminating the eye
  • biometrics for recognizing
  • identifying an individual include analyzing a signature, obtaining and
  • Examples are immigration control, point of sale verification, welfare check dispensing,
  • the system could also be used to identify patients, criminal
  • ATMs Automated teller machines
  • the optical system which receives light reflected from the iris.
  • the system includes at least
  • illuminators we also prefer to provide a pan/tilt mirror, or gimbal device and at least
  • NFOV field of view
  • WFOV wide field of view
  • the WFOV cameras may be superfluous, if the user is always known to
  • pan/tilt mirror or
  • gimbal is adjusted to receive light reflected from the iris or other area of interest and
  • the illuminator preferably
  • a second set of light emitting diodes have center lines normal to the base, a second set of light emitting diodes have
  • centerlines at an acute angle to the base and a third set of light emitting diodes have centerlines at an obtuse angle relative to the base. This provides the array a wider field
  • the control system may
  • An image processor is provided to analyze the images from the wide
  • imaging or distance finding devices such as ultrasonic, radar, spread spectrum
  • microwave or thermal imaging or sensing or other optical means could be used.
  • the present system is particularly useful for verifying the identity of
  • Image acquisition and identification can generally be accomplished in less than five
  • NFOV camera and one NFOV camera, two NFOV cameras, multiple NFOV cameras and multiple
  • WFOV cameras can be utilized for other special purpose applications such as more or
  • Figure 1 is a front view of a present preferred embodiment of our device
  • Figure 2 is a side view of the embodiment of Figure 1.
  • Figure 3 is a top plan view of a first present preferred embodiment of our
  • Figure 4 is a side view of the illuminator of Figure 3 with the area of
  • Figure 5 is a side view similar to Figure 4 of a second present preferred
  • Figure 6 is top view of a first present preferred illuminator bracket.
  • Figure 7 is a side view showing the illuminator bracket of Figure 6 with
  • Figure 8 is top view of a second present preferred illuminator bracket
  • Figure 9 is a side view showing the illuminator bracket of Figure 8 with
  • Figure 10 is a block diagram showing a preferred control architecture for
  • Figure 1 1 is a front view showing the eyes and glasses of the person to
  • Figure 12 is a front view showing the eyes and glasses of the person to
  • housing 1 which is 14.5 inches wide, 15 inches high, and 18
  • a housing of this size can be easily placed within or near an automated
  • the bezel would be smoked or other
  • Our device would be positioned so as to be about eye level of most users.
  • Figure 2 we show the head of a person to be identified user in front of our device.
  • WFOV wide field of view
  • Hoods 5 and 7 are provided around the lens 2 and 4 to prevent light
  • view illuminator is comprised of sets of light emitting diodes 10. For ease of construction, these sets of diodes may be mounted on small circuit boards 12.
  • axis illumination, and oblique illuminator allow surface features to be imaged with
  • lighting may cause the pupil to be bright making the iris easier to locate although this
  • Illumination control of this type can be
  • WFOV cameras to create images from which an x, y, z coordinate location can be
  • the WFOV cameras may also be used to provide a first image.
  • the WFOV cameras could utilize a number of techniques such as stereo,
  • stereo processing techniques which compare at least a portion of the images from the
  • iris portion of the eye and obtain an iris image which can be used for iris verification
  • the iris recognition algorithms compare features of the iris in the image
  • illuminators for use in conjunction with the NFOV camera. These illuminators in
  • conjunction with the WFOV camera may be selectively switched to an orchestrated
  • illuminators 21 , 22 or 23 is reflected from the selected eye to an optical subsystem 30
  • Wc can provide a sensor 14
  • Information from this sensor can be used to determine what, if any, illumination must be used.
  • optical subsystem 30 in the embodiment shown in Figure 1 contains
  • pan/tilt mirror to be rotated about a tilt axis corresponding to a centerline through rod
  • Motor 34 is mounted on arm 35 which is pivotably attached to base 36 by rod 37.
  • This arm 35 can be moved around a pan axis corresponding to a centerline through rod
  • NFOV camera can be moved to change the focus or zoom, and the aperture of the
  • NFOV camera 16 is adjustable.
  • the pan axis the tilt axis, the focus axis, the aperture axis and the zoom axis.
  • a system with fewer degrees of freedom could also be used.
  • tilt axes are used to position the pan/tilt mirror 32 so that the correct narrow field is
  • the imager dictates the distance between the camera and lens and the distance between
  • the size of the imager is of paramount importance in
  • NFOV camera 16 may be solid state or of vidicon
  • sensing array size can vary from generic industry sizes of 1/4, 1/3,
  • the illuminators are positioned to provide
  • illuminators arc oriented to direct light to
  • illuminators could also be attached to a sliding mechanism for translation along an axis.
  • the light source preferably is a light emitting diode or other device that
  • a lens and diffuser (not
  • Optical filters may be placed in the light path in
  • Different wavelength priority filters may be used to permit
  • the LED light source could be strobed. Strobing provides the capability to
  • Strobing also provides the capability to overwhelm ambient light by
  • the NFOV illuminators are preferably
  • the light emitting diodes are mounted normal to the circuit board the illuminator will
  • Circular ring illuminators or other shapes may also be used which could
  • NFOV lens NFOV lens
  • Other optical elements such as polarizers or birefringent analysis devices may be used to minimize artifacts or enhance other
  • That bracket 30 has a U-shaped
  • first pair of gripper arms 33 and 34 with attached pin 42 are pivotably attached to one
  • a locking tab 39 extends from the
  • a second bracket 44 which we have used to attach the NFOV illuminators 21, 22, and 23 to the housing 1 is shown in Figures 8 and 9. That bracket
  • a rod 52 extends upward from the
  • Collar 53 slides along rod 52 and can be held at any desired location on the
  • Rod 55 extends from collar 53 and holds carrier 56. This carrier is
  • bracket 30 permit the attached illuminator to be repositioned or adjusted along a pan
  • ILLUMINATOR 1 can be one or more illuminator arrays these arrays are designated as ILLUMINATOR 1
  • controller 62 enable us to selectively light the WFOV illuminator 6 and the NFOV
  • Each set of light emitting diodes may emit a different wavelength of
  • LEDs of different beam widths could be mounted
  • the WFOV cameras 3 provide images to an image processor 64 which
  • That processor 64 tells the computer 65 the x, y, z coordinates of the
  • the image processor may also display selected eye or eyes of the person to be identified.
  • the image processor may also display selected eye or eyes of the person to be identified.
  • the image processor may also display selected eye or eyes of the person to be identified.
  • the PC 65 has
  • the expected position of the eye enable the computer to direct the illumination
  • the pan/tilt controller 66 accepts macro level commands from the
  • the intermediate continuous path set points for the axis are generated here and then sent to each axis supervisory controller.
  • a command interpreter decodes the commands from the image analysis and formats
  • a diagnostic subsystem performs health checks for the control system.
  • the microprocessor controller Besides the choreography of the five axes, the microprocessor controller
  • the illumination controller will accept
  • Images from the WFOV are transmitted as analog signals to the image
  • the image processor preferably contains two pyramid processors, a
  • memory capable of storing at least two frames, one LUT, ALU device, a digitizer
  • That information is then further processed to define an area of interest such as the head or an eye.
  • the coordinates of the area of interest are used to direct the
  • This unit 65 contains a 486,
  • PENTIUM or other microprocessor system and associated memory.
  • memory are
  • WFOV video images can be stored as a security video record.
  • the focus axes of the NFOV system may be controlled in an open loop
  • a closed loop focus method could also be
  • NFOV video would be processed by image processor 64 to obtain a
  • WFOV camera images can be combined with stereo and other focus information into
  • This sensor fusion may encompass other information as
  • a quality image may be acquired via the NFOV camera and optics.
  • the optics directing light to the NFOV camera are
  • imager may not have sufficient time to perform the required integration to get a non-
  • specularity or iris configuration or pattern matching may be capable of providing
  • the NFOV axes must settle to a point
  • obscured may be collected and fused into a single composite, less obscured iris image
  • the reflection 70 partially covers the iris 76 of the
  • the WFOV specularity makes finding the head and
  • the specularity will be in one position during the first
  • a calibration procedure must be used to correlate the center of the
  • WFOV coordinates ⁇ x,y,z ⁇ defining the position of a user's eye somewhere in the
  • the NFOV camera's field of view coincident with x,y coordinates and in focus on the z
  • targets are placed a known distance from the housing and the device is activated to

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Pathology (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)
  • Eye Examination Apparatus (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

Au moins une caméra (3) à large champ de vision et un illuminateur associé (6, 10) permettent d'obtenir des images d'une personne d'une qualité suffisamment bonne pour pouvoir identifier cette dernière. Des coordonnées x, y et z peuvent alors être établies de manière à correspondre à la position attendue de l'oeil de ladite personne. Ces coordonnées sont utilisées pour diriger une caméra (16) à champ de vision étroit et les illuminateurs (21-23) qui y sont associés de façon à prendre une image de l'oeil (76, 78) qui puisse être utilisée pour identifier ladite personne au moyen d'algorithmes de vérification et de reconnaissance de l'iris. Ces illuminateurs sont placés et illuminés de manière à éliminer, ou au moins réduire au minimum les réflexions, spéculaires ou autres, qui obscurcissent l'iris (76).
PCT/US1997/014873 1996-08-25 1997-08-22 Appareil de prise d'images d'iris WO1998008439A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP51177498A JP2002514098A (ja) 1996-08-25 1997-08-22 虹彩取得用イメージのための装置
EP97941356A EP0959769A1 (fr) 1996-08-25 1997-08-22 Appareil de prise d'images d'iris
CA002264029A CA2264029A1 (fr) 1996-08-25 1997-08-22 Appareil de prise d'images d'iris
AU43282/97A AU727389B2 (en) 1996-08-25 1997-08-22 Apparatus for the iris acquiring images

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70292396A 1996-08-25 1996-08-25
US08/702,923 1996-08-25

Publications (1)

Publication Number Publication Date
WO1998008439A1 true WO1998008439A1 (fr) 1998-03-05

Family

ID=24823180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/014873 WO1998008439A1 (fr) 1996-08-25 1997-08-22 Appareil de prise d'images d'iris

Country Status (6)

Country Link
EP (1) EP0959769A1 (fr)
JP (2) JP2002514098A (fr)
KR (1) KR100342159B1 (fr)
AU (1) AU727389B2 (fr)
CA (1) CA2264029A1 (fr)
WO (1) WO1998008439A1 (fr)

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US6377699B1 (en) 1998-11-25 2002-04-23 Iridian Technologies, Inc. Iris imaging telephone security module and method
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EP1374144A1 (fr) * 2001-03-06 2004-01-02 Evermedia Co., Ltd. Procede de reconnaissance de l'iris humain de type sans contact reposant sur la correction de l'image irienne en rotation
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WO2005024698A2 (fr) 2003-09-04 2005-03-17 Sarnoff Corporation Procede et appareil permettant d'effectuer une reconnaissance retinienne a partir d'une image
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US7634114B2 (en) 2006-09-01 2009-12-15 Sarnoff Corporation Method and apparatus for iris biometric systems for use in an entryway
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US8787624B2 (en) 2011-03-08 2014-07-22 Fujitsu Limited Biometric-information processing device, method of processing biometric information, and computer-readable recording medium storing biometric-information processing program
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US9008375B2 (en) 2011-10-07 2015-04-14 Irisguard Inc. Security improvements for iris recognition systems
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CN106407964A (zh) * 2016-11-15 2017-02-15 刘霁中 一种利用可见光源采集虹膜的装置、方法及终端设备
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KR20000035840A (ko) 2000-06-26
JP2002514098A (ja) 2002-05-14
CA2264029A1 (fr) 1998-03-05
AU4328297A (en) 1998-03-19
AU727389B2 (en) 2000-12-14
JP2004073880A (ja) 2004-03-11
KR100342159B1 (ko) 2002-06-27
EP0959769A1 (fr) 1999-12-01

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