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WO2018211082A1 - Système de reconnaissance de l'iris - Google Patents

Système de reconnaissance de l'iris Download PDF

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Publication number
WO2018211082A1
WO2018211082A1 PCT/EP2018/063127 EP2018063127W WO2018211082A1 WO 2018211082 A1 WO2018211082 A1 WO 2018211082A1 EP 2018063127 W EP2018063127 W EP 2018063127W WO 2018211082 A1 WO2018211082 A1 WO 2018211082A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
electromagnetic radiation
light source
reflected
type
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.)
Ceased
Application number
PCT/EP2018/063127
Other languages
German (de)
English (en)
Inventor
Hans-Jürgen LUGAUER
Bianka SCHNABEL
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.)
Ams Osram International GmbH
Original Assignee
Osram Opto Semiconductors GmbH
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 Osram Opto Semiconductors GmbH filed Critical Osram Opto Semiconductors GmbH
Publication of WO2018211082A1 publication Critical patent/WO2018211082A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06V10/143—Sensing or illuminating at different wavelengths

Definitions

  • IRIS DETECTION SYSTEM EP 1341119 A2 describes a system for detecting irises.
  • One problem to be solved is to provide a system for
  • Another object to be solved is to provide a system for iris recognition, in which no possible glare of the person in which the iris recognition is performed can occur.
  • Iris recognition is a method of biometrics for the purpose of authentication or identification of persons. To identify the person, characteristic features of an iris (also called the "iris") of the eye are identified.
  • the iris recognition system comprises a light source.
  • the light source is adapted to emit electromagnetic radiation. That is, in the operation of the light source, the light source radiates electromagnetic radiation, with the example, the iris of an eye can be illuminated.
  • Iris recognition comprises this one receiving unit, which comprises a detector which is reflected for detection
  • Receiving unit is particularly adapted to the of the light source emitted during operation to detect electromagnetic radiation after reflection.
  • the electromagnetic radiation is detected after reflection on an eye.
  • the receiving unit can then be, in particular, a camera, which in the spectrum of the electromagnetic energy emitted by the light source
  • Radiation captures at least one image of the eye.
  • the light source comprises a semiconductor chip of the first kind.
  • the semiconductor chip of the first type is in particular a luminescence diode chip, that is to say a light-emitting diode chip or a laser diode chip. It is not possible for the light source to comprise one or more semiconductor chips of the first type. In the event that the
  • Light source comprises a plurality of semiconductor chips of the first kind, the semiconductor chips are provided, for example, in the
  • the semiconductor chip of the first type is set up for the emission of UV radiation.
  • the semiconductor chip is set up in particular for the emission of UV (A) radiation.
  • the UV radiation which is emitted by the semiconductor chip of the first type is at least part of the electromagnetic radiation which is emitted by the light source. It is possible that the electromagnetic radiation emitted by the
  • Light source is emitted, consists of the UV radiation.
  • the electromagnetic radiation of the light source comprises, in addition to the UV radiation, further radiation components which, at the same time as the UV radiation, Radiation or offset in time to the UV radiation emitted.
  • Iris detection includes the reflected electromagnetic radiation at least partially reflected UV radiation. That is, the UV radiation emitted by the semiconductor chip of the first type during operation of the light source is used, for example, to produce an image of the illuminated eye or the illuminated iris. This makes it possible to carry out an evaluation in the spectral range of the UV radiation.
  • Iris recognition is the detector for detecting the
  • the detector is capable of detecting the reflected ultraviolet radiation. This makes it possible, for example, for the receiving unit to take a picture in the UV spectrum, which can then be evaluated.
  • an iris recognition system is provided with
  • a receiving unit comprising a detector adapted to detect reflected electromagnetic radiation
  • the light source comprises a semiconductor chip of the first type, - the semiconductor chip of the first type is adapted to emit UV radiation,
  • the UV radiation is at least part of the electromagnetic radiation
  • the reflected electromagnetic radiation comprises at least partially reflected UV radiation
  • the detector is set up to detect the reflected UV radiation.
  • An iris recognition system described here is based, inter alia, on the following considerations.
  • Example blue, green or red light generate. However, these can dazzle the user.
  • An iris recognition system described here is now based on the knowledge that UV radiation is suitable for iris recognition. That is, it has been found that the reflectivity of the human iris for UV radiation is high enough to perform a reliable evaluation of the reflected electromagnetic radiation and thus a reliable identification based on an image of the iris.
  • the electromagnetic radiation is at the iris of an eye
  • the reflected radiation is electromagnetic radiation incident on the iris of an eye, especially a human eye, is reflected. That is, the receiving unit has a detector that is sensitive enough to detect an am
  • the electromagnetic radiation generated by the light source is free of red light.
  • the light source does not include a semiconductor chip which, in operation, generates light that is perceived by the viewer as red light.
  • the light generated by the light source during operation is free of visible light. That is, the light source in particular does not comprise a semiconductor chip which generates visible light during operation.
  • One possibility for providing reliable iris recognition even for blue and green eyes is to use light-emitting diode chips which have a maximum intensity of the emitted light at approximately 810 nm.
  • An underlying idea of the system described herein is therefore to use a light source in which the generated electromagnetic radiation is completely free of visible light.
  • only electromagnetic radiation in the operation of the system not ⁇ visible region is then radiated. That is, the system is particularly free of any light source that produces visible light during operation. This means, in particular, that the system has no light source in operation
  • the UV radiation generated by the semiconductor chip of the first type has a wavelength of at most 400 nm.
  • the light source comprises a semiconductor chip of the second type, which is connected to the
  • the light source comprises, in addition to the semiconductor chip of the first type, which emits UV radiation during operation, at least one further semiconductor chip of the second type, which emits infrared radiation during operation. It is possible that the light source comprises two or more semiconductor chips of the second type, which - in particular in the context of
  • the IR radiation emitted by the semiconductor chip of the second type is, in particular, IR radiation with a maximum intensity at a wavelength of at least 850 nm.
  • a system described here is based inter alia on the recognition that the use of semiconductor chips of the first type , which emit UV radiation during operation, allow a sufficiently high contrast for blue and green iris colors. The brown eye colors can then with
  • electromagnetic radiation of the semiconductor chips of the second type are illuminated, which generate infrared radiation in a range which is also not or hardly noticeable.
  • second-type semiconductor chips that generate IR radiation with a maximum of the intensity of the IR radiation at a wavelength of at least 850 nm have no reddish glow.
  • the light source is adapted to the electromagnetic
  • Radiation pulse to emit with a pulse duration of at most 100 ms, in particular of at most 50 ms is possible. That is, the light source is for generating "Flash" provided. The fact that the light source emits the electromagnetic radiation for such low pulse durations, it is ensured that even with the use of UV radiation, the eye safety is guaranteed.
  • Receiving unit is then configured to synchronized with the light source to detect the reflected radiation, for example, to record such a lit with a "UV flash” and / or an "IR flash” image.
  • Receiving unit is also provided a mobile electronic device and a motor vehicle with a system described herein.
  • the mobile electronic device may be
  • the motor vehicle may be, for example, a car or a truck in which the system for detecting irises is used, for example, to the driver of the motor vehicle at regular intervals - for example, to keep a logbook - to
  • system described here in many other electronic devices is conceivable.
  • the system can be used in devices for the identification of persons at airports. It is also possible to use the system in game consoles or TV sets
  • Identification of the users to use for example, to recall default settings of the device or the age rating of certain distributed over the devices content. Further, the system described herein may be fixed in particular
  • access restrictions are used, for example, in (residential) houses or rooms. That is, there is further provided an access restriction arrangement having a system as described herein.
  • the Access restriction arrangement By the Access restriction arrangement, access to houses, rooms or areas can be restricted. Only if one
  • an access restriction arrangement includes the system and a door or gate with a latch that can be opened due to signals from the system.
  • a system described here has among others the
  • Ambient light conditions allows. It is also possible with the system to avoid the use of IR LEDs that produce a "red-glow" effect.
  • the system allows the application of automotive iris detection for motor vehicles since glare and distraction no longer occur.
  • FIG. 1 shows a system described here on the basis of a schematic representation. An exemplary embodiment of a system described here is explained in more detail in connection with the graphic plots of FIGS. 2A and 2B. The same, similar or equivalent elements are provided in the figures with the same reference numerals. The figures and the proportions in the figures
  • FIG. 1 shows a schematic representation of a system for detecting irises described here.
  • the system comprises a light source 1, which has at least one semiconductor chip of the first type 11, which is set up to emit UV radiation 115.
  • the light source 1 can also have a semiconductor chip of the second type 12, which is intended for
  • the semiconductor chips of the first type 11 and the semiconductor chips of the second type 12 can be present in any number in the light source 1.
  • the semiconductor chips of the first type 11 and the semiconductor chips of the second type 12 may, for example, in a common housing, for example in the housing of a
  • the light source 1 may comprise at least two subunits, for example two light-emitting diodes, each of which
  • a first light-emitting diode may have first-type semiconductor chips 11 and a second light-emitting diode may have second-type semiconductor chips 12.
  • the light source 1 may further comprise an optical element 13, for example a lens, which may be arranged downstream of the semiconductor chips of the first type 11 and / or the semiconductor chips of the second type 12. From the light source 1 electromagnetic radiation 15 is emitted during operation.
  • the electromagnetic radiation 15 comprises the UV radiation 115 at least at certain times. In the event that the system generates UV radiation
  • Semiconductor chips of the second type 12 includes, it is possible that the electromagnetic radiation 15 at equal times UV radiation 115 and IR radiation 125 includes. Furthermore, it is possible for the UV radiation 115 and the IR radiation 125 to be generated at different times.
  • the light source 1 radiates the electromagnetic radiation 15 in a region of the illumination 14.
  • the system further comprises a receiving unit 2 which comprises a detector 23 which is reflected for detection
  • electromagnetic radiation 25 is set up.
  • Receiving unit 2 is for example intended to
  • the reflected electromagnetic radiation 25 comprises partially reflected UV radiation 225, which is due to the UV radiation 115 of the first type semiconductor chip 11.
  • the reflected electromagnetic radiation 25 may also include IR radiation 235, which is due to the IR radiation of the semiconductor chip of the second type 12. It is
  • the receiving unit comprises two detectors 23, wherein one of the detectors is adapted to the
  • the receiving unit 2 comprises in addition to the detector 23, an optical element 21 which is adapted to the
  • the receiving unit 2 between the detector 23 and the optical element 21 may comprise a filter 22, which may be, for example, an optical bandpass filter
  • the eyes 4 are illuminated, which are located, for example, at a distance of at least 20 cm and at most 35 cm to the eyes 4 facing outer surface of the cover plate 3.
  • the eyes 4 each comprise an iris 41, which has certain identifying features, in the figure as dots
  • electromagnetic radiation 15 passes as reflected electromagnetic radiation 25 to the receiving unit 2.
  • the system may further comprise a cover plate 3 which is arranged between the eyes 4 on the one hand and the receiving unit 2 and the light source 1 on the other hand.
  • the cover plate 3 may be formed permeable at least in places for the radiation generated in the light source 2.
  • optical elements such as the optical elements 13 and 21, may be integrated.
  • the filter 22 is already integrated in the cover plate 3.
  • the system may further comprise an evaluation unit 5, which evaluates an image of the iris 41 recorded by the receiving unit 2.
  • the evaluation unit 5 can be a separate component, for example, integrated into a device, part of which is the system for iris recognition.
  • the evaluation unit 5 may be a microprocessor which is integrated in a mobile phone, part of which is also the system for detecting irises.
  • the receiving unit 2 is part of this device.
  • the evaluation unit 5 is integrated into a component of the system.
  • the evaluation unit 5 is integrated into a component of the system.
  • the evaluation unit 5 is integrated into a component of the system.
  • the evaluation unit 5 is integrated into a component of the system.
  • the evaluation unit 5 is integrated into a component of the system.
  • the evaluation unit 5 is integrated into a component of the system.
  • Evaluation unit 5 also be integrated into the receiving unit 2, which is then designed as a camera, which for
  • Evaluation of the received signals from the detector is set up.
  • the light source 1 generates the electromagnetic radiation 15, for example in pulses in flashes having a duration of at most 100 ms, in particular at most 50 ms, and the receiving unit 2 receives the correspondingly reflected electromagnetic radiation 25 synchronized to these pulses.
  • Figure 2A shows the eye sensitivity curve
  • Wavelength ⁇ expressed in nanometers
  • UV radiation is in the region A, which is also shown in FIG. 2B. There is a logarithmic

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Human Computer Interaction (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Image Input (AREA)

Abstract

La présente invention concerne un système de reconnaissance de l'iris comportant : - une source lumineuse (1), conçue pour émettre un rayonnement électromagnétique (15) ; - une unité de réception (2), qui comprend un détecteur (23), qui est conçu pour détecter un rayonnement électromagnétique réfléchi (25) ; - la source lumineuse (1) comprenant une puce semi-conductrice d'un premier type (11) ; - la puce semi-conductrice du premier type (11) étant conçue pour émettre un rayonnement UV (115), - le rayonnement UV (115) constituant au moins une partie du rayonnement électromagnétique (15) ; - le rayonnement électromagnétique réfléchi (25) comprenant un rayonnement UV au moins partiellement réfléchi (225) ; et - le détecteur (23) étant conçu pour détecter le rayonnement UV réfléchi (225).
PCT/EP2018/063127 2017-05-18 2018-05-18 Système de reconnaissance de l'iris Ceased WO2018211082A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017110818.1 2017-05-18
DE102017110818.1A DE102017110818A1 (de) 2017-05-18 2017-05-18 System zur Iriserkennung

Publications (1)

Publication Number Publication Date
WO2018211082A1 true WO2018211082A1 (fr) 2018-11-22

Family

ID=62196616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/063127 Ceased WO2018211082A1 (fr) 2017-05-18 2018-05-18 Système de reconnaissance de l'iris

Country Status (2)

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DE (1) DE102017110818A1 (fr)
WO (1) WO2018211082A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1341119A2 (fr) 2002-02-21 2003-09-03 Lg Electronics Inc. Système pour la reconnaisance de l'iris
US20090092284A1 (en) * 1995-06-07 2009-04-09 Automotive Technologies International, Inc. Light Modulation Techniques for Imaging Objects in or around a Vehicle
US20090245594A1 (en) * 2008-03-31 2009-10-01 General Electric Company Iris imaging and iris-based identification
WO2016120379A1 (fr) * 2015-01-30 2016-08-04 Sicpa Holding Sa Réalisation simultanée de l'authentification d'un article de sécurité et de l'identification de l'utilisateur de cet article de sécurité
WO2016203212A2 (fr) * 2015-06-15 2016-12-22 The Technology Partnership Plc Système optique
US20170091548A1 (en) * 2015-09-24 2017-03-30 Mudit Agrawal User authentication using multiple capture techniques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090092284A1 (en) * 1995-06-07 2009-04-09 Automotive Technologies International, Inc. Light Modulation Techniques for Imaging Objects in or around a Vehicle
EP1341119A2 (fr) 2002-02-21 2003-09-03 Lg Electronics Inc. Système pour la reconnaisance de l'iris
US20090245594A1 (en) * 2008-03-31 2009-10-01 General Electric Company Iris imaging and iris-based identification
WO2016120379A1 (fr) * 2015-01-30 2016-08-04 Sicpa Holding Sa Réalisation simultanée de l'authentification d'un article de sécurité et de l'identification de l'utilisateur de cet article de sécurité
WO2016203212A2 (fr) * 2015-06-15 2016-12-22 The Technology Partnership Plc Système optique
US20170091548A1 (en) * 2015-09-24 2017-03-30 Mudit Agrawal User authentication using multiple capture techniques

Also Published As

Publication number Publication date
DE102017110818A1 (de) 2018-11-22

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