WO2006052004A1 - 虹彩認証装置 - Google Patents
虹彩認証装置 Download PDFInfo
- Publication number
- WO2006052004A1 WO2006052004A1 PCT/JP2005/021065 JP2005021065W WO2006052004A1 WO 2006052004 A1 WO2006052004 A1 WO 2006052004A1 JP 2005021065 W JP2005021065 W JP 2005021065W WO 2006052004 A1 WO2006052004 A1 WO 2006052004A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- saccade
- user
- index
- sight
- line
- Prior art date
Links
Classifications
-
- 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
-
- 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
- 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
-
- 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
- G06V40/40—Spoof detection, e.g. liveness detection
- G06V40/45—Detection of the body part being alive
-
- 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
- G07C9/33—Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password
-
- 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
Definitions
- the present invention relates to an iris authentication device that can prevent unauthorized authentication such as impersonation.
- JP-T-8-504979 and JP-A-2 000-23946 a method of performing authentication using a personal iris pattern is known. Unlike fingerprints, authentication methods that use irises have the advantage that images can be taken from a non-contact and distant place with respect to the iris, and are expected to become popular in the future.
- the iris authentication device of the present invention has been made in view of these problems, and can detect a biological reaction in a short time and prevent unauthorized authentication acts such as impersonation.
- the iris authentication device of the present invention is separated from an imaging unit that captures an image of a user's eye, a first saccade index for fixing the user's line of sight by lighting, and the first saccade index.
- a second sucker that is installed and moves to move the user's line of sight —Indicators, a gaze detection unit that detects the user's gaze from the image captured by the imaging unit, an iris image extraction unit that extracts an iris image from the image captured by the imaging unit, and an iris image extraction unit
- An authentication unit that performs iris authentication based on the extracted iris image, and the line-of-sight detection unit detects a movement of the user's line of sight as the second saccade indicator is turned on.
- the iris authentication device of the present invention includes a first imaging unit that captures an image of a user's eye, and a first sucker that is installed adjacent to the first imaging unit and fixes a user's line of sight.
- a second index unit that is placed away from the first imaging unit and captures the image of the user's eyes, and is installed adjacent to the second imaging unit to move the user's line of sight
- a saccade index for detecting the user's gaze from an image captured by at least one of the first imaging unit and the second imaging unit, a first imaging unit
- an iris image extraction unit that extracts an iris image from an image captured by at least one of the second imaging units, and an authentication unit that performs iris authentication based on the iris image extracted by the iris image extraction unit.
- the iris authentication device of the present invention is installed between the first saccade index and the second saccade index, and includes a saccade display that displays a password, and a path that is displayed on the saccade display.
- a password input unit that inputs a password and a control unit that determines whether the password input from the password input unit is correct may be further provided.
- FIGS. 1A and 1B are schematic diagrams of an iris authentication device according to a first embodiment of the present invention.
- FIG. 2 is a circuit block diagram of the iris authentication apparatus according to the first embodiment of the present invention.
- 3A and 3B are diagrams showing a line-of-sight detection method in the first embodiment and the second embodiment of the present invention.
- FIGS. 4A to 4G are diagrams showing a method of displaying a pass word on a sucker display in the first embodiment and the second embodiment of the present invention.
- FIG. 5 is a timing chart for displaying the saccade display according to the first and second embodiments of the present invention.
- FIG. 6 is a flowchart showing the operation of the iris authentication apparatus according to the first embodiment of the present invention.
- FIG. 7A and 7B are schematic diagrams of an iris authentication device according to the second embodiment of the present invention.
- FIG. 8 is a circuit block diagram of the iris authentication apparatus according to the second embodiment of the present invention.
- FIG. 9 is a flowchart showing the operation of the iris authentication apparatus according to the second embodiment of the present invention.
- BEST MODE FOR CARRYING OUT THE INVENTION the present invention is a high-speed biological reaction such as a saccade phenomenon (for example, a journal of the Virtual Reality Society of Japan) Vo l. 6, No. 2, 2001 (see “Proposal of a New Information Presentation Method Using Saccade”).
- a saccade phenomenon for example, a journal of the Virtual Reality Society of Japan
- Vo l. 6, No. 2, 2001 see “Proposal of a New Information Presentation Method Using Saccade”.
- FIGS. 1A and 1B are schematic views of an iris authentication apparatus according to a first embodiment of the present invention.
- the camera 20 images the user's eyes 10.
- an infrared light emitting diode 30 that emits near infrared light for illuminating the eye 10 is provided close to the camera 20.
- a first success indicator 40 is provided proximate to the camera 20 to help the user's eye 10 gaze at the camera 20.
- the first saccade index 40 for example, a visible light emitting diode that emits visible light can be used.
- a second saccade index 45 is provided.
- the distance from the eye 10 to the camera 20 is about 35 cm so that the angle of the saccade is approximately 10 °, and the first saccade index 40 and the second saccade index 45 The spacing was set to about 6.1 cm.
- a saccade display 50 for displaying a password is provided between the first saccade index 40 and the second saccade index.
- the password displayed on the saccade display 50 can be input by the user by the password input means 60 which is a password input unit such as a keyboard.
- the casing 70 is provided with a signal processing unit 1700, a control unit 180, an authentication unit 190, etc., which will be described later.
- FIG. 1A shows a state in which the first saccade index 40 is turned on and the line of sight of eye 10 is fixed to the first saccade index 40, and FIG.
- the saccade indicator 40 is turned off, the second saccade indicator 45 is turned on, and the line of sight 11 is moved to the second sucker indicator 45.
- FIG. 2 is a circuit block diagram of the iris authentication apparatus in the first embodiment of the present invention.
- the imaging unit 1 2 0 constituting the camera 20 includes an imaging lens 1 2 1 that forms an image of the eye, a filter 1 2 2 that transmits a predetermined range of wavelengths such as near infrared light, An image sensor 1 2 3 such as a CCD for converting the excess light into an electrical signal, and an image signal converter 1 2 4 for processing an electrical signal output from the image sensor 1 2 3 are provided.
- the image signal output from the image signal converter 1 2 4 is sent to the signal processor 1 7 0.
- the signal processing unit 1 7 0 is an image quality determination unit that determines the contrast and brightness of the image signal.
- a gaze detection unit 1 7 3 for detecting a gaze from the image signal
- an iris image extraction unit 1 to 4 for extracting an iris image from the image signal.
- Signals from the image quality determination unit 1 7 2 and the line-of-sight detection unit 1 73 are sent to the control unit 180, and signals from the iris image extraction unit 1 74 are sent to the authentication unit 190.
- 3A and 3B are diagrams showing a gaze detection method.
- the light emitted from the infrared light emitting diode 30 or saccade index 40 is irradiated to the eye 10, it is reflected by the cornea and generates corneal reflected light 1 2.
- the central position of the corneal reflected light 1 2 and the pupil 1 3 The direction of the line of sight can be determined by detecting the difference between.
- the line-of-sight detection unit 1 7 3 determines that the line of sight 1 1 is directed toward the camera 20 if the corneal reflection light 1 2 and the center position of the pupil 13 substantially match.
- FIG. 3A the line-of-sight detection unit 1 7 3 determines that the line of sight 1 1 is directed toward the camera 20 if the corneal reflection light 1 2 and the center position of the pupil 13 substantially match.
- the illumination unit 1 3 0 is an illumination control unit 1 3 2 that controls the light intensity of the infrared light emitting diode 30 and the infrared light emitting diode 30 that emit near-infrared light that illuminates the user's eyes 10. It is equipped with.
- the saccade index section 1 4 0 includes a first saccade index 40 that emits visible light, a second saccade index 4 5, and an index control section 1 4 2 that controls the amount of light of the saccade index. It has.
- the saccade display 50 has a function of displaying a password.
- seven visible light emitting diodes are arranged in a line.
- Figures 4A to G show how to display the password [H] as an example.
- 1st saccade index 4 0 lights up and the user's line of sight 1 1 is fixed to the camera 20 0
- 2nd saccade index 4 5 lights up and the line of sight 1 1 becomes the second saccade index 4 While moving to 5, first turn on all seven as shown in Fig. 4A, then turn on only one in the middle as shown in Fig. 4B, and then in Fig. 4C, Fig. 4D, Fig. Lights in the order of 4 E, Fig. 4 F, Fig.
- the change in the image of the suck display 50 remains as an afterimage while the user's eyeball moves, and an image “H” is displayed to the user.
- the pass screen can be displayed using the saccade display 50.
- an example of displaying the simple letter “H” for easy understanding of the principle is shown.
- the number of visible light emitting diodes in the saccade display 50 is increased, or the number of columns displayed is increased. And this Can display complicated characters and multi-digit passwords.
- the control unit 180 issues a different password each time and displays it on the saccade display 50.
- FIG. 5 is a diagram showing the timing for displaying the saccade display 50.
- saccade index 1 is turned off at t 0 and saccade index 2 is lit at t 1.
- the eyeball moves to saccade index 2, but the eyeball does not move immediately, and after a time delay called latency, it starts to move by t 2 force ⁇ .
- a user who has recognized the password in the saccade display 50 can input the password using the password input means 60.
- the entered password is verified by the control unit 1800, and it is determined whether or not the user can correctly recognize the password displayed on the saccade display 50.
- the iris image information sent from the iris image extraction unit 1 74 and the iris image information stored in advance are collated by the method described in Patent Document 1, for example, and the iris authentication operation is performed.
- FIG. 6 is a flowchart showing the operation of the iris authentication apparatus according to the first embodiment of the present invention.
- the first saccade index 40 is turned on to fix the user's line of sight 11 to the force lens 20 (S11).
- the camera 20 captures the user's eye image, and the iris image extraction unit 1 74 extracts an iris image from the image (S 1 2).
- the line-of-sight detection units 1 to 3 detect the user's line of sight 11 (S 1 3). If the user's line of sight 11 is not pointing toward the camera 20, the process returns to step S 12 to capture the eye image again (S 14).
- the first saccade indicator 40 is turned off, and the second saccade indicator 45 is turned on.
- the user's eyeball changes from the first saccade index 40 to the second soccer It moves toward the index 4 5 (S 1 5).
- the password is displayed on the saccade display 50 as shown in FIGS. 4A to 4G and FIG. 5 (S 16).
- the line-of-sight detection unit 1 73 detects the user's line of sight 11 again (S 17). At this time, if the user's line of sight 1 1 is facing the camera 20, saccade movement has not occurred and there is a possibility of impersonation, so return to step S 1 1 from the beginning. Start over (S 1 8).
- the control unit 180 determines whether or not the input password is correct. If the password is not correct, the process returns to step S 1 1 and starts again (S 2 0). If the password is correct, it can be determined that the image is not an iris image taken on a photograph or artificial eye. Then, the authentication unit 190 collates the iris image information sent from the iris image extraction unit 174 with the iris image information stored in advance. If the verification matches, authentication succeeds, and if the verification does not match, authentication fails (S 2 1).
- the eye movement is detected to check the biological reaction and collate with an iris image excellent in personal authentication.
- accurate authentication processing can be performed in an extremely short time, and unauthorized authentication acts such as spoofing can be prevented.
- steps S 16, S 19 and S 20 may be omitted.
- FIGS. 7A and 7B are schematic diagrams of an iris authentication apparatus according to the second embodiment of the present invention. 7A and 7B, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- the second embodiment is different from the first embodiment in that a second camera 25 and an infrared light emitting diode 35 are provided in the vicinity of the second suck index 45.
- Fig. 7 A shows the first saccade indicator 40 and lights the user's line of sight 1 1 to camera 2
- 0 7B shows a state in which the second saccade index 45 is turned on and the line of sight 11 is moved to the second camera 25.
- FIG. 8 is a circuit block diagram of the iris authentication apparatus in the second embodiment of the present invention. Also in FIG. 8, the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- the second imaging unit 2 2 0 includes an imaging lens 2 2 1 that forms an image of the eye, and a filter 2 2 2 that transmits a predetermined range of wavelengths.
- an image sensor 2 2 3 composed of a CCD for converting the transmitted light into an electrical signal, and an image signal converter 2 2 4 for processing the electrical signal output from the image sensor 2 3.
- the image signal output from the image signal conversion unit 2 2 4 is sent to the signal processing unit 1 7 0.
- the signal processing unit 1 70 includes an image quality determination unit 1 72 that determines contrast, brightness, and the like, and a line-of-sight detection unit that detects lines of sight to the first imaging unit 1 2 0 and the second imaging unit 2 2 0 1 73 and an iris image extraction unit 1 4 for extracting an iris image from the image signals obtained by the first imaging unit 120 and the second imaging unit 220.
- the illumination unit 2 3 0 is an infrared light emitting diode 35 that emits near-infrared light that illuminates the user's eyes 10 0 and an illumination control unit 2 3 2 that controls the light intensity of the infrared light emitting diode 3 5 It consists of
- FIG. 9 is a flowchart showing the operation of the iris authentication apparatus according to the second embodiment of the present invention.
- the first saccade index 40 is turned on to fix the user's line of sight 11 to the force lens 20 (S 5 1).
- the camera 20 captures an image of the user's one eye (for example, the left eye), and at the same time, the second camera 25 captures an image of the user's one eye (for example, the right eye). Extracts an iris image from each eye image (S 5 2).
- the line-of-sight detection unit 1 73 detects the line of sight 11 of the user (S 5 3). Then, it is detected whether or not the line of sight 11 according to the eye image captured by the camera 20 is directed toward the camera.
- the step is performed. Returning to S 52, the eye image is captured again (S 5 4). If the user's line of sight 1 1 is directed to camera 20 and not to the second camera 25, proceed to the next.
- step S51 Capture the eye image again (S 59).
- the second camera 25 captures the second image repeatedly at the timing after t 3 in FIG. 5, and the line-of-sight detection unit 1 7 3 includes the user's line of sight 11 as the second camera 25. It is desirable to detect the user's line of sight depending on whether or not there is an image facing the user.
- the control unit 180 determines whether or not the input password is correct. If the password is not correct, the process returns to step S 51 and starts again (S 6 1). Then, the authentication unit 190 compares the left and right eye iris image information sent from the iris image extraction unit 1 74 with the previously stored left and right eye iris image information. If the verification matches, authentication succeeds, and if the verification does not match, authentication fails (S 6 2). Although authentication can be performed in the above steps, since the iris information of the left and right eyes can be collated as compared with the example of the first embodiment, more reliable authentication can be performed.
- the iris authentication may be performed using the right eye image captured before the occurrence of saccade in La 20 and the right eye image captured after the occurrence of the suck with the second camera 25. According to such a configuration, it is possible to reliably detect the occurrence of saccade with the same eye.
- the direction of the line of sight is detected by detecting the difference between the corneal reflected light 12 and the center position of the pupil 13.
- a method of detecting the flatness of the pupil may be used as the gaze detection method. That is, as shown in FIG. 3A, if the pupil 13 is almost close to a perfect circle, it is determined that the line of sight is directed toward the camera 20. If the pupil 13 is flattened more than a predetermined value as shown in FIG. It can be determined that the line of sight is not toward the camera 20.
- the iris authentication apparatus in the first embodiment and the second embodiment is assumed to be installed in a dark place or in a relatively dark room, but the illumination is very strong even in the outdoors or indoors.
- the entire device is surrounded by a light-shielding wall and the user looks through the viewing window, not only will the saccade appear, but the saccade display will be easier to see, and the password will be visible to others.
- advantages such as not having.
- the effect shown in FIG. 6 or FIG. 9 can be further improved by executing the flow shown in FIG. 6 or 9 repeatedly several times to prevent unauthorized authentication such as impersonation.
- the saccade angle is set to the above-mentioned value as an example of the design force interval, but the present invention is limited to these design values. It is not a thing. Industrial applicability
- the iris authentication device of the present invention is an iris authentication device that can process both acquisition of an iris image that is favorable for personal authentication and detection of a biological reaction in a short time, and can prevent unauthorized authentication acts such as impersonation. Since it can be provided, it is useful for systems and devices that require personal authentication.
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Abstract
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/718,659 US20070263908A1 (en) | 2004-11-11 | 2005-11-10 | Iris Authentication Device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-327443 | 2004-11-11 | ||
JP2004327443A JP2006136450A (ja) | 2004-11-11 | 2004-11-11 | 虹彩認証装置 |
Publications (1)
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WO2006052004A1 true WO2006052004A1 (ja) | 2006-05-18 |
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Family Applications (1)
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PCT/JP2005/021065 WO2006052004A1 (ja) | 2004-11-11 | 2005-11-10 | 虹彩認証装置 |
Country Status (3)
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US (1) | US20070263908A1 (ja) |
JP (1) | JP2006136450A (ja) |
WO (1) | WO2006052004A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008000464A (ja) * | 2006-06-23 | 2008-01-10 | Glory Ltd | 認証装置および認証方法 |
US20100278394A1 (en) * | 2008-10-29 | 2010-11-04 | Raguin Daniel H | Apparatus for Iris Capture |
JP2014206932A (ja) * | 2013-04-15 | 2014-10-30 | オムロン株式会社 | 認証装置、認証方法、制御プログラムおよび記録媒体 |
WO2015164807A1 (en) | 2014-04-25 | 2015-10-29 | Texas State University | Detection of brain injury and subject state with eye movement biometrics |
JP6217593B2 (ja) * | 2014-10-31 | 2017-10-25 | 京セラドキュメントソリューションズ株式会社 | 承認装置、承認システム、および承認プログラム |
WO2016090379A2 (en) * | 2014-12-05 | 2016-06-09 | Texas State University | Detection of print-based spoofing attacks |
JP2020529073A (ja) * | 2017-07-26 | 2020-10-01 | プリンストン・アイデンティティー・インコーポレーテッド | 生体セキュリティシステムおよび方法 |
CN109670384A (zh) * | 2017-10-16 | 2019-04-23 | 北京集联网络技术有限公司 | 一种虹膜快速活体检测方法 |
US11138301B1 (en) * | 2017-11-20 | 2021-10-05 | Snap Inc. | Eye scanner for user identification and security in an eyewear device |
JP7277151B2 (ja) * | 2019-01-21 | 2023-05-18 | キヤノン株式会社 | 画像形成装置 |
JP7524953B2 (ja) * | 2020-01-27 | 2024-07-30 | 日本電気株式会社 | 凝視に基づくライブネス検出のための情報処理装置、情報処理方法、およびプログラム |
Citations (1)
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JP2000083930A (ja) * | 1998-09-10 | 2000-03-28 | Oki Electric Ind Co Ltd | アイリスを用いた個人識別装置 |
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JPH08104B2 (ja) * | 1992-09-17 | 1996-01-10 | 株式会社エイ・ティ・アール視聴覚機構研究所 | 奥行き視線移動検査装置 |
DK1285409T3 (da) * | 2000-05-16 | 2005-08-22 | Swisscom Mobile Ag | Fremgangsmåde ved biometrisk identificering og autentificering |
-
2004
- 2004-11-11 JP JP2004327443A patent/JP2006136450A/ja not_active Withdrawn
-
2005
- 2005-11-10 US US11/718,659 patent/US20070263908A1/en not_active Abandoned
- 2005-11-10 WO PCT/JP2005/021065 patent/WO2006052004A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000083930A (ja) * | 1998-09-10 | 2000-03-28 | Oki Electric Ind Co Ltd | アイリスを用いた個人識別装置 |
Non-Patent Citations (1)
Title |
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OZAWA Y. ET AL: "Seitai Hanshagata Ninsho: Taiko Hansha to Moten Ichi o Riyo shita Ninsho Hoshiki.", INFORMATION PROCESSING SOCIETY OF JAPAN SYMPOSIUM RONBUNSHU., vol. 2005, no. 6, 6 July 2005 (2005-07-06), pages 105 - 108 * |
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US20070263908A1 (en) | 2007-11-15 |
JP2006136450A (ja) | 2006-06-01 |
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