CN106326861A - Iris recognition device - Google Patents
Iris recognition device Download PDFInfo
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- CN106326861A CN106326861A CN201610715556.8A CN201610715556A CN106326861A CN 106326861 A CN106326861 A CN 106326861A CN 201610715556 A CN201610715556 A CN 201610715556A CN 106326861 A CN106326861 A CN 106326861A
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- iris
- eye
- directional light
- eyes
- pseudo
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- 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
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses an iris recognition device. The iris recognition device comprises a false eye detection unit which outputs random brightness signals to a directional light source and acquires the iris size change, wherein when the iris size change is corresponding to the change of the brightness of the directional light source, the eyes are judged to be real eyes, or the eyes are false eyes; the directional light source which is used for emitting brightness-adjustable directional light to the eyeballs; an image acquisition unit which is used for acquiring eyeball images after the judgment result of the false eye detection unit indicates that the eyes are real eyes; an iris locating unit which is used for performing boundary locating on the irises in the eyeball images and extracting iris images; and a feature extraction unit which is used for extracting the iris features in the iris images. The advantages are that the physiological change of the eyes for the light is utilized, and the change of the iris size is acquired by adjusting the light brightness of the directional light source. The size of the false eyes cannot be adjusted anytime so that the false eyes are not influenced by the intensity of the light. The function of false eye recognition can be achieved through simple arrangement of the light source, and the cost only requires 10% of that of existing equipment.
Description
Technical field
The present invention relates to the authentication means of a kind of financial terminal, particularly relate to a kind of body based on iris recognition technology
Part checking device.
Background technology
From the VTM(Virtual virtual automatic teller machine of Teller Machine) and STM(Smart Teller Machine wisdom
Automatic teller machine) etc. after intelligent finance terminal emerges, owing to operating manpower can be saved in a large number and promotes client and embodies, increasingly tend to
Replace traditional ATM.Intelligent terminal can provide open an account, cancellation, transfer accounts, to the tradition irrealizable function of ATM such as public, but
It is that user all must be done harsh identity verification by these functions, is not as ATM and uses card just can be considered as authority confirmation means.
Intelligent finance terminal uses the multiple bio-identification sides such as fingerprint, iris, iris, vocal print to user identification confirmation and license confirmation
Method.Wherein iris identification is belonging to the mandate identification of high authority, therefore requires the highest to the technology of iris identification, and existing skill
In art, the identification ability to pseudo-eye is very poor.Owing to iris identification authority is high, and weak, therefore, in order to improve to pseudo-eye identification ability
Pseudo-eye identification ability all must use the photographic head of high accuracy high cost and the most accurate algorithm.The bulky of complete set of equipments
And cost intensive, it is impossible to widely apply.
Summary of the invention
In order to solve above-mentioned technical problem, present invention aim at providing a kind of iris identification device.
A kind of iris identification device of the present invention, it is characterised in that including:
Pseudo-eye detector unit, exports random brightness signal to directional light sources；Acquisition iris dimensions changes；When iris dimensions change with
Directional light sources brightness flop, to being true eye during correspondence, is otherwise pseudo-eye；
Directional light sources, for sending the directional rays of brightness-adjustable to eyeball；
Image acquisition unit, obtains eyeball image after being judged as true eye in pseudo-eye detector unit；
Iris Location unit, for the iris in eyeball image is carried out boundary alignment, extracts iris image；
Feature extraction unit, for extracting the iris feature in iris image.
Described directional light sources can be adjusted light source direction by pseudo-eye detector unit.
Described pseudo-eye detector unit changes according to the direction of directional light sources, and detection iris moving direction is the most consistent, moves
Dynamic direction is judged as true eye time consistent, is otherwise pseudo-eye.
Described directional light sources uses wavelength 492～577 nanometer or wavelength 610 to 750 nanometer.
A kind of iris identification device of the present invention, has an advantage in that, utilizes the human eye physiological change to light, pass through
The light luminance adjusting directional light sources obtains the change of iris dimensions.Owing to pseudo-eye can not adjust size, the most at any time
Can be affected by light intensity.Being arranged by simple light source and just can reach the pseudo-other function of outlook, cost only needs existing
The 10% of equipment.Not having the photographic head of precision, the equipment volume of device can greatly reduce, and saves space.
Accompanying drawing explanation
Fig. 1 is the structural representation that identification device of the present invention is carried to VTM machine.
Fig. 2 is iris identification device structural representation of the present invention.
Detailed description of the invention
According to Fig. 1, shown in 2, a kind of iris identification device of the present invention is carried in VTM machine work use.This VTM
Machine includes iris identification device, is used for identifying iris feature, and eigenvalue is fed back to data base；Data base, is used for storing
Eigenvalue, and the eigenvalue of the eigenvalue of input with storage is compared；Master controller, is used for controlling iris identification device to rainbow
Film is positioned to identify；Receive the comparison result of data base；According to comparison result, host computer is sent identity authentication result. described
Iris identification device, including: pseudo-eye detector unit, directional light sources is exported random brightness signal；Acquisition iris dimensions changes；When
Iris dimensions change to being true eye time corresponding, is otherwise pseudo-eye with directional light sources brightness flop；Directional light sources, for eye
Ball sends the directional rays of brightness-adjustable；Image acquisition unit, obtains eyeball after being judged as true eye in pseudo-eye detector unit
Image；Iris Location unit, for the iris in eyeball image is carried out boundary alignment, extracts iris image；Feature extraction
Unit, for extracting the iris feature in iris image.
Owing to the relatively pseudo-eye of human eye has pupil automatic regulation function to adapt to different light intensity environment, regulate pupil at eyeball
Iris naturally-occurring change in size when of size, when showing as platycoria, iris internal-and external diameter can increase.Otherwise contracted pupil
When iris internal-and external diameter also can reduce.Although variable quantity is little, but is sufficient to be caught its situation of change by photographic head.Due to
Pseudo-eye does not has an ability that this change adjusts, therefore simple light source arrange and size detection just can effectively to distinguish eyeball true
Puppet, equipment cost is the cheapest.
After showing as eyeball entrance video scope during application, photographic head catches eyeball automatically, and opens directional light sources, by light
Line alignment pupil direction.Pseudo-eye detector unit exports random brightness flop function to directional light sources, and brightness flop function controls
The brightness of directional light sources increases and reduces.Iris situation of change in detection eyeball simultaneously, if situation is reduced in the expansion of iris
Increase and decrease situation with the brightness in brightness flop function consistent, then judge that this eyeball is true eye, be otherwise pseudo-eye.It is being defined as very
The iris feature that can be carried out next step after Yan extracts and comparison, the simplest but also accurate.
Pseudo-eye detector unit can also control the light source direction of directional light sources, increases the identification ability of pseudo-eye further.People
Eye is the most automatic light moves when to be moved toward light, therefore outside detection through hole scaling, it is also possible to detection
The direction that in eyeball, iris moves is the most consistent with light source change direction, if being unanimously judged as true eye, is otherwise pseudo-eye.
In order to preferably make eyeball that light source produces physiological reaction, the wavelength of directional light sources uses two kinds that human eye is most sensitive
Wavelength, respectively wavelength 492～577 nanometer or wavelength 610 to 750 nanometer.
For a person skilled in the art, can technical scheme as described above and design, make other each
Plant corresponding change and deformation, and all these change and deformation all should belong to the protection model of the claims in the present invention
Within enclosing.
Claims (4)
1. an iris identification device, it is characterised in that including:
Pseudo-eye detector unit, exports random brightness signal to directional light sources；Acquisition iris dimensions changes；When iris dimensions change with
Directional light sources brightness flop, to being true eye during correspondence, is otherwise pseudo-eye；
Directional light sources, for sending the directional rays of brightness-adjustable to eyeball；
Image acquisition unit, obtains eyeball image after being judged as true eye in pseudo-eye detector unit；
Iris Location unit, for the iris in eyeball image is carried out boundary alignment, extracts iris image；
Feature extraction unit, for extracting the iris feature in iris image.
Device the most according to claim 1, it is characterised in that described directional light sources can be adjusted light by pseudo-eye detector unit
Direction, source.
Device the most according to claim 2, it is characterised in that described pseudo-eye detector unit is according to the direction of directional light sources
Change, detection iris moving direction is the most consistent, is judged as true eye when moving direction is consistent, is otherwise pseudo-eye.
Device the most according to claim 1, it is characterised in that described directional light sources use wavelength 492～577 nanometer or
Wavelength 610 to 750 nanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610715556.8A CN106326861A (en) | 2016-08-25 | 2016-08-25 | Iris recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610715556.8A CN106326861A (en) | 2016-08-25 | 2016-08-25 | Iris recognition device |
Publications (1)
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| CN106326861A true CN106326861A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610715556.8A Pending CN106326861A (en) | 2016-08-25 | 2016-08-25 | Iris recognition device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3312303B2 (en) * | 1999-03-23 | 2002-08-05 | エルジー電子株式会社 | Forgery discrimination method of iris recognition system |
| CN101051349A (en) * | 2007-05-18 | 2007-10-10 | 北京中科虹霸科技有限公司 | Multiple iris collecting device using active vision feedback |
| CN102842040A (en) * | 2012-08-13 | 2012-12-26 | 高艳玲 | Living body detection method utilizing eye tracing |
| CN103544420A (en) * | 2013-08-15 | 2014-01-29 | 马建 | Anti-fake iris identity authentication method used for intelligent glasses |
| CN105224842A (en) * | 2014-06-04 | 2016-01-06 | 中兴通讯股份有限公司 | The method of user identification confirmation and device in a kind of VTM system |
| CN105320939A (en) * | 2015-09-28 | 2016-02-10 | 北京天诚盛业科技有限公司 | Iris biopsy method and apparatus |
| CN105608408A (en) * | 2015-06-29 | 2016-05-25 | 宇龙计算机通信科技(深圳)有限公司 | Method, system and terminal for iris recognition |
-
2016
- 2016-08-25 CN CN201610715556.8A patent/CN106326861A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3312303B2 (en) * | 1999-03-23 | 2002-08-05 | エルジー電子株式会社 | Forgery discrimination method of iris recognition system |
| CN101051349A (en) * | 2007-05-18 | 2007-10-10 | 北京中科虹霸科技有限公司 | Multiple iris collecting device using active vision feedback |
| CN102842040A (en) * | 2012-08-13 | 2012-12-26 | 高艳玲 | Living body detection method utilizing eye tracing |
| CN103544420A (en) * | 2013-08-15 | 2014-01-29 | 马建 | Anti-fake iris identity authentication method used for intelligent glasses |
| CN105224842A (en) * | 2014-06-04 | 2016-01-06 | 中兴通讯股份有限公司 | The method of user identification confirmation and device in a kind of VTM system |
| CN105608408A (en) * | 2015-06-29 | 2016-05-25 | 宇龙计算机通信科技(深圳)有限公司 | Method, system and terminal for iris recognition |
| CN105320939A (en) * | 2015-09-28 | 2016-02-10 | 北京天诚盛业科技有限公司 | Iris biopsy method and apparatus |
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Application publication date: 20170111 |