CN105676565A - Iris recognition lens, device and method - Google Patents
Iris recognition lens, device and method Download PDFInfo
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- CN105676565A CN105676565A CN201610194551.5A CN201610194551A CN105676565A CN 105676565 A CN105676565 A CN 105676565A CN 201610194551 A CN201610194551 A CN 201610194551A CN 105676565 A CN105676565 A CN 105676565A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
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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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- 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
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Abstract
The invention provides an iris recognition lens, device and method. An infrared light source and a visible light source arranged in the lens are utilized to emit infrared light and visible light to the eyes of a person to be recognized; a light splitting module and a filtering module of an imaging device are utilized to split one path of light reflected by the eyes of the person into visible light human eye imaging light and a path of infrared light human eye imaging light; and therefore, a visible light human eye image and an infrared light human eye image in an imaging process can be obtained, and the identity of the person to be recognized can be recognized according to the visible light human eye image and the infrared light human eye image. With the iris recognition lens, device and method of the invention adopted, the user experience of iris recognition can be improved.
Description
Technical field
The present invention relates to image processing field, in particular to a kind of iris recognition camera lens,Device and method.
Background technology
At present, in the fields such as information security and staff attendance, need personnel identity to verify,How a people's of precise Identification identity in the time carrying out personnel's authentication, has become oneKey technology. Traditional authentication, owing to very easily forging and losing, is more and more difficult to meetThe demand of society, along with the development of biometrics identification technology, by the biological information of human body(as: fingerprint, face, iris, retina, hand shape, hand back vein, sound etc.) are not toIdentity with personnel is identified, and has more and more obtained application.
In correlation technique, in the time personnel's identity being verified by iris recognition, needThe iris image that gathers related personnel is in advance stored, and tests in the identity to personnelWhen card, need iris identification equipment captured identity personnel's to be verified eye image, and fromThe eye image location iris region collecting, thus these personnel's identity is verified.
In the process of personnel's identity being verified by iris recognition, need human eye to existThe central area of iris recognition camera lens occurs, just can gather the iris image of human eye, therebyCarry out iris recognition, cause that to carry out time of authentication by iris image long, reduce rainbowThe user of film identification experiences.
Summary of the invention
In view of this, the object of the embodiment of the present invention be to provide a kind of iris recognition camera lens,Device and method, experiences with the user who improves iris recognition.
First aspect, the embodiment of the present invention provides a kind of iris recognition camera lens, comprising: becomePicture device and be that at least one infrared light supply of configuring of described imaging device and at least one canSee light source;
Described infrared light supply and described visible light source are arranged on around described imaging device;
Described imaging device comprises the spectral module, filtration module and the image-forming module that set gradually;
Described infrared light supply, sends infrared light for the eyes to personnel to be identified, makes instituteState eyes that imaging device collects described personnel to be identified under described infrared light supply irradiatesThe infrared illumination eye image arriving;
Described visible light source, sends visible ray for the eyes to personnel to be identified, makes instituteState eyes that imaging device collects described personnel to be identified under described visible light source irradiatesThe visible ray eye image arriving;
Described spectral module, for by described personnel's to be identified eye reflections Yi road lightBe divided into two-way eyes imaging light, described two-way eyes imaging light includes visible ray and redOuter light;
Described filtration module, for described two-way imaging light is carried out to filtering operation, obtainsOne visible ray eyes imaging light He Yi road, road infrared light eyes imaging light;
Described image-forming module, for to the described visible ray eyes imaging light obtaining and described inInfrared light eyes imaging light carries out imaging, obtains respectively visible ray eye image and redOuter smooth eye image.
In conjunction with first aspect, the embodiment of the present invention provides the first of first aspect possibleEmbodiment, wherein, described spectral module comprises the beam splitter prism and the reflection rib that be arranged in parallelMirror, the angle of described beam splitter prism and described reflecting prism and described filtration module is 45 degree;
Described beam splitter prism, for by described personnel's to be identified eye reflections Yi road lightIn part light reflection to described reflecting prism, and another portion of a road light described in transmissionLight splitter, is divided into described two-way eyes imaging light by a described road light;
Described reflecting prism, for the described part light reflection that described beam splitter prism is reflectedTo described filtration module.
In conjunction with first aspect, the embodiment of the present invention provides the second of first aspect possibleEmbodiment, wherein, described filtration module comprises: the IR-cut filter plate being set up in parallelWith visible ray cut-off filter plate;
Described IR-cut filter plate, for to described two-way imaging light Zhong mono-tunnel imagingLight carries out filtering operation, obtains a road visible ray eyes imaging light;
Described visible ray cut-off filter plate, for becoming described two-way imaging light Zhong mono-tunnelCarry out filtering operation as light, obtain a road infrared light eyes imaging light.
In conjunction with first aspect, the embodiment of the present invention provides the third of first aspect possibleEmbodiment, wherein, described image-forming module comprises that the image-forming objective lens and the imaging that set gradually passSensor;
Described image-forming objective lens, for to described visible ray eyes imaging light and described infrared lightEyes imaging light carries out optical treatment;
Described imaging sensor, for the described visible ray eyes imaging light to after optical treatmentLine and described infrared light eyes imaging light carry out imaging operation, obtain respectively described visible rayEye image and described infrared light eye image.
In conjunction with first aspect, the embodiment of the present invention provides the 4th kind of first aspect possibleEmbodiment, wherein, when described infrared light supply and described visible light source are multiple, Duo GesuoState infrared light supply and described visible light source even in the pickup area of described imaging device respectivelyArrange.
Second aspect, the embodiment of the present invention provides a kind of iris identification device, comprises above-mentionedIris recognition camera lens, described iris identification device also comprises: iris image processing module andIris image memory module;
Described iris image processing module respectively with described iris recognition camera lens and described iris figurePicture memory module connects;
Described iris image processing module, for obtaining treating that described iris recognition camera lens obtainsIdentification personnel's visible ray eye image and infrared light eye image, and by the institute gettingState visible ray eye image and described infrared light eye image and described iris image storage mouldThe registered iris image of storing in piece, verifies personnel's to be identified identity;
Described iris image memory module, for storing registered iris image.
In conjunction with second aspect, the embodiment of the present invention provides the first of second aspect possibleEmbodiment, wherein, described iris image processing module comprises:
Image acquisition unit, for obtaining described to be identified that described iris recognition camera lens obtainsPersonnel's described visible ray eye image and described infrared light eye image;
Fusion treatment unit, for to described visible ray eye image and described infrared light human eyeImage carries out fusion treatment, obtains fused images;
Region determining unit, for determining eye image from the described fused images obtainingRegion;
Image determining unit, for determining infrared light iris in described eye image regionImage;
Authentication unit, for according to the described infrared light iris image of determining, treats describedIdentification personnel's identity is verified.
In conjunction with second aspect, the embodiment of the present invention provides the second of second aspect possibleEmbodiment, wherein, described authentication unit comprises:
Image Feature Detection subelement, for carrying out image spy to described infrared light iris imageLevy detection, obtain the characteristics of image of described infrared light iris image;
Judgment sub-unit, inquires from described iris image memory module for judging whetherThe immediate characteristics of image of characteristics of image with described infrared light iris image;
Identity is determined subelement, for when the judged result of described judgment sub-unit is when being,Described iris image processing module determines that described personnel to be identified are by authentication.
The third aspect, the embodiment of the present invention provides a kind of iris identification method, applies above-mentionedIris identification device, described method comprises:
Obtain the personnel's to be identified that iris recognition camera lens obtains visible ray eye image and infraredLight eye image;
Described visible ray eye image and described infrared light eye image are carried out to fusion treatment,Obtain fused images;
From the described fused images obtaining, determine eye image region;
In described eye image region, determine infrared light iris image;
According to the described infrared light iris image of determining, to described personnel's to be identified identityVerify.
In conjunction with the third aspect, the embodiment of the present invention provides the first of second aspect possibleEmbodiment, wherein, the described infrared light iris image that described basis is determined, to describedPersonnel's to be identified identity is verified, comprising:
Described infrared light iris image is carried out to Image Feature Detection, obtain described infrared light rainbowThe characteristics of image of film image;
Judge whether from described iris image memory module, to inquire and described infrared light irisThe immediate characteristics of image of characteristics of image of image;
If so, determine that described personnel to be identified are by authentication.
A kind of iris recognition camera lens, device and method that the embodiment of the present invention provides, pass throughInfrared light supply and visible light source are set in camera lens infrared to personnel's to be identified eyes transmittingLight and visible ray, and the spectral module arranging by imaging device and filtration module are by personnel'sEyes reflect Yi road light and are divided into visible ray eyes imaging light He Yi road infrared light human eyeImaging light, thus visible ray eye image and infrared light eye image in the time of imaging, obtained,And according to the visible ray eye image obtaining and infrared light eye image the body to personnel to be identifiedPart identify, and by iris recognition, personnel's identity is verified in prior artIn process, need human eye to occur just can gathering human eye in the central area of iris recognition camera lensIris image is compared, and occurs in the central area of iris recognition camera lens without human eye, just canThe iris image that gathers human eye carries out the checking of personnel identity, thereby has reduced by iris figureThe time that picture carries out authentication, the user who has improved iris recognition experiences, and makes from long distanceFrom or large picture image in promptly carry out iris image identification and become possibility.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, belowEspecially exemplified by preferred embodiment, and coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will be to embodimentIn the accompanying drawing of required use be briefly described, should be appreciated that the following drawings only showsSome embodiment of the present invention, therefore should not be counted as the restriction to scope, for abilityTerritory those of ordinary skill, is not paying under the prerequisite of creative work, can also basisThese accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 shows the summary of a kind of iris recognition camera lens that the embodiment of the present invention provides and showsIntention;
Fig. 2 shows showing in detail of a kind of iris recognition camera lens that the embodiment of the present invention providesIntention;
Fig. 3 shows the flow process of a kind of iris identification method that the embodiment of the present invention providesFigure.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present inventionCase is clearly and completely described, and obviously, described embodiment is only the present invention onePart embodiment, instead of whole embodiment. Conventionally in accompanying drawing, describe and illustrate hereinThe assembly of the embodiment of the present invention can arrange and design with various configuration. Therefore,Below the detailed description of the embodiments of the invention that provide in the accompanying drawings being not intended to restriction wantsAsk the scope of the present invention of protection, but only represent selected embodiment of the present invention. Based onEmbodiments of the invention, those skilled in the art are not making under the prerequisite of creative workThe every other embodiment obtaining, belongs to the scope of protection of the invention.
Consider in correlation technique, in the time personnel's identity being verified by iris recognition,Need the iris image that gathers in advance related personnel to store, and enter in the identity to personnelWhen row checking, need iris identification equipment captured identity personnel's to be verified eye image,And locate iris region from the eye image collecting, thereby these personnel's identity is testedCard. Based on this, the embodiment of the present invention provides a kind of iris recognition camera lens, device and method,Be described below by embodiment.
Embodiment
Referring to Fig. 1, the present embodiment provides a kind of iris recognition camera lens, comprising: imaging dressPut and be at least one infrared light supply 100 and at least one visible ray of imaging device configurationSource 102;
Infrared light supply 100 and visible light source 102 are arranged on around imaging device;
Imaging device comprises the spectral module 104, filtration module 106 and the imaging that set graduallyModule 108;
Infrared light supply 100, sends infrared light for the eyes to personnel to be identified, makes intoThe infrared light that the eyes that collect personnel to be identified as device obtain under infrared light supply irradiates shinesBright eye image;
Visible light source 102, sends visible ray for the eyes to personnel to be identified, makes intoThe visible ray people that the eyes that collect personnel to be identified as device obtain under visible light source irradiatesEye pattern picture;
Spectral module 104, for being divided into personnel's to be identified eye reflections Yi road lightTwo-way eyes imaging light, two-way eyes imaging light includes visible ray and infrared light;
Filtration module 106, for two-way imaging light is carried out to filtering operation, obtains a roadVisible ray eyes imaging light He Yi road infrared light eyes imaging light;
Image-forming module 108, for the visible ray eyes imaging light to obtaining and infrared light peopleEye imaging light carries out imaging, obtains respectively visible ray eye image and infrared light human eyeImage.
Referring to Fig. 2, be the concrete structure figure of iris recognition camera lens, wherein in figure, dotted line representsThe light beam of surround lighting or visible light source, solid line represents infrared beam.
Particularly, spectral module comprises the beam splitter prism 200 and the reflecting prism that be arranged in parallel202, beam splitter prism 200 and reflecting prism 202 are 45 degree with the angle of filtration module; PointBeam prism 200, for by the part light of personnel's to be identified eye reflections Yi road lightLine reflection is to reflecting prism 202, and another part light of transmission one road light, Jiang YiluLight is divided into two-way eyes imaging light; Reflecting prism 202, for by beam splitter prism 200The part light reflection of reflection is to filtration module.
Beam splitter prism 200 and reflecting prism 202 and filtration module are except above set-up modeOutside, the angle that can also be other arranges, with the eye reflections to personnel to be identifiedLight carry out light splitting operation, repeat no longer one by one here.
Filtration module comprises: the IR-cut filter plate 204 being set up in parallel and visible ray cut-offFilter plate 206; IR-cut filter plate 204, for becoming two-way imaging light Zhong mono-tunnelCarry out filtering operation as light, obtain a road visible ray eyes imaging light; Visible ray cut-offFilter plate 206, for two-way imaging light Zhong mono-tunnel imaging light is carried out to filtering operation,Obtain a road infrared light eyes imaging light.
Image-forming module comprises the image-forming objective lens 208 and the imaging sensor 210 that set gradually; BecomePicture object lens 208, for entering visible ray eyes imaging light and infrared light eyes imaging lightRow optical treatment; Imaging sensor 210, becomes for the visible ray human eye to after optical treatmentCarry out imaging operation as light and infrared light eyes imaging light, obtain respectively visible ray human eyeImage and infrared light eye image.
Imaging sensor 210 can use existing any complementary metal for imagingThing semiconductor (ComplementaryMetalOxideSemiconductor, CMOS) devicePart or charge coupled cell (Charge-coupledDevice, CCD), here no longer oneOne repeats.
Preferably, for personnel's to be identified iris image being carried out in more wide regionGather, in iris recognition camera lens, can in the pickup area of imaging device, arrange multipleInfrared light supply and visible light source, multiple infrared light supplies and visible light source are respectively at imaging deviceIn pickup area, evenly arrange. Wherein, the magnitude setting of infrared light supply and visible light source with adoptThe regional extent of collection iris image is proportional.
The pickup area of imaging device, comprises that imaging device and imaging device are aroundPredeterminable area, gathers for the iris image to personnel to be identified.
Visible light source, supplements for the brightness to surround lighting, thereby darker at surround lightingRegion in, also can by gather iris image test personnel's to be identified identityCard.
In order to make the visible light source brightness to environment in the situation of environmental light brightness deficiency aroundSupplement, iris recognition camera lens is also provided with light sensor, for Real-time Obtaining irisIdentification camera lens ambient brightness around, and feed back to iris identification device, make iris recognitionDevice judges whether to start visible light source according to iris recognition camera lens ambient brightness around, rightBrightness to environment supplements.
In the present embodiment, the idiographic flow of iris identification device control visible light source comprise withLower step (1) is to step (5):
(1) obtain the brightness of current iris recognition camera lens surrounding environment by light sensorValue;
(2) whether the brightness value that judgement is obtained is less than default visible light source starts luminance thresholdValue, if it is performs step 4, if otherwise execution step 3;
(3) whether the brightness value that judgement is obtained is greater than default visible light source stops luminance thresholdValue, if it is performs step 5, if otherwise return to step 1, wherein, visible light source stopsOnly luminance threshold is greater than visible light source startup luminance threshold;
(4) send enabled instruction to visible light source, this visible light source is started working, rightThe brightness of environment supplements;
(5) send halt instruction to visible light source, this visible light source is quit work.
In sum, by iris recognition camera lens, light sensor being set, obtain irisIdentification camera lens surround lighting around, and when light is darker around, start visible light source to weekThe surround lighting enclosing supplements, make iris recognition camera lens in the darker region of surround lighting alsoCan gather iris image.
Therefore the process that, above-mentioned iris recognition camera lens carries out imaging comprises: pass through surround lightingOr the illumination beam that visible light source and infrared light supply send is respectively to personnel's to be identifiedHuman eye, human eye can comprise visible ray and infrared light Yi road light to the reflection of iris recognition camera lens,Gai Yi road light is divided into two-way light after beam splitter prism, and wherein a road light continues acrossBeam splitter prism, enters visible ray cut-off filter plate, and another Shu Ze is vertical along beam splitter prismDirection outgoing enters IR-cut filter plate after reflecting prism. IR-cut filter plateOnly allow the light beam of visible light wave range to pass through, infrared beam cut-off. Visible ray cut-off filter plateOnly allow infrared beam to see through, visible light beam cut-off. Through after image-forming objective lens, in imagingImaging on sensor. Therefore iris recognition camera lens has obtained respectively a general lighting people eye patternPicture and an infrared illumination eye image.
In imaging process, the iris recognition camera lens using can preferentially use optics visual fieldScope is larger, the longer iris recognition camera lens of focal length, in the picture of imaging, does not need like thisIris image to be placed on to the centre position of image, not need to cooperate with on one's own initiative and can complete rainbowThe collection of film image.
After getting visible ray eye image and infrared light eye image, need to be to obtainingVisible ray eye image and infrared light eye image process, thereby to personnel to be identifiedIdentity verify, so in the present embodiment, a kind of iris identification device is also proposed,Comprise iris recognition camera lens, iris image processing module and iris figure that above-described embodiment is describedPicture memory module;
Iris image processing module connects with iris recognition camera lens and iris image memory module respectivelyConnect;
Iris image processing module, the personnel to be identified that obtain for obtaining iris recognition camera lensVisible ray eye image and infrared light eye image, and by the visible ray human eye gettingThe registered iris of storing in image and infrared light eye image and iris image memory moduleImage, verifies personnel's to be identified identity;
Iris image memory module, for storing registered iris image.
Registered iris image, comprising: institute before carrying out personal identification by iris imageThe personnel's that gather iris image and corresponding characteristics of image.
In iris identification device, the acquisition process of registered iris image comprises the following steps(1) to step (3):
(1) get personnel's iris image by iris recognition camera lens;
(2) by iris image processing module, iris image is processed, obtained correspondingCharacteristics of image;
(3) store the characteristics of image obtaining into iris image together with corresponding iris imageIn memory module.
Iris image processing module, can use existing any processor, microprocessor orPerson's process chip, processes the visible ray eye image obtaining and infrared light eye image,Here repeat no longer one by one.
The registered iris image of storing in iris image memory module can relate to single people,Also can relate to multiple people. Iris image memory module includes but not limited to: flash memory type storageDevice, hard-disc type memory, multimedia card micro memory, card type memory (for example, SDOr XD memory), magnetic memory, disk, CD, RAM, SRAM, EEPROMWith at least one in the storage medium of PROM, registered iris image is depositedStorage.
This example propose iris identification device in, by iris recognition camera lens by visible rayThe eye image that the eye image of taking and infrared light are taken is through the unified imaging sensing that is imaged onOn device, form visible ray eye image and infrared light eye image. Pass through again iris image placeReason module, by this visible ray eye image and this infrared light eye image, passes through conventional environmentThe visible ray eye image of optical illumination carries out human eye location, then the people's eye pattern to infrared illuminationPicture carries out iris image identification. Then carry out testing of personnel identity according to the iris image of identificationCard.
In the present embodiment, for right from visible ray eye image and infrared light eye imagePersonnel's to be identified identity verifies, iris image processing module comprises:
Image acquisition unit, can for what obtain personnel to be identified that iris recognition camera lens obtainsSee light eye image and infrared light eye image;
Fusion treatment unit, for carrying out visible ray eye image and infrared light eye imageFusion treatment, obtains fused images;
Region determining unit, for determining eye image region from the fused images obtaining;
Image determining unit, for determining infrared light iris image in eye image region;
Authentication unit, the infrared light iris image of determining for basis, to personnel to be identifiedIdentity verify.
In the determining unit of region, determine from fused images by default image algorithmEye image region.
Default image algorithm, can be existing any can be from above-mentioned fused images reallyThe image algorithm of making eye image region, repeats here no longer one by one.
Particularly, authentication unit comprises:
Image Feature Detection subelement, for carrying out characteristics of image inspection to infrared light iris imageSurvey, obtain the characteristics of image of infrared light iris image;
Judgment sub-unit, inquires with red from iris image memory module for judging whetherThe immediate characteristics of image of characteristics of image of outer smooth iris image;
Identity is determined subelement, for when the judged result of judgment sub-unit is when being, and rainbowFilm image processing module determines that personnel to be identified are by authentication.
In order to make iris identification device can not continue iris to know because of fault at the power supply of power supplyZhuan Zhi not power time, can also make iris identification device work on, so iris recognition dressAlso put and comprise: secondary cell.
Secondary cell, respectively with iris recognition camera lens, iris image processing module and iris figurePicture memory module connects.
Secondary cell, for being respectively iris recognition camera lens, iris image processing module and rainbowThe power supply of film image memory module.
Wherein, secondary cell can be lithium battery, nickel-based battery, can also be other any canThink that iris identification device provides the rechargeable battery of electric weight, repeats no longer one by one here.
By the stand-by power supply of secondary cell as iris identification device is set, can be at irisIn the situation of the unexpected power-off of recognition device, be iris by the secondary cell as stand-by power supplyRecognition device power supply, makes iris identification device in the time that the power supply of power supply breaks down, and also canWith collector's iris image, convenient for users.
Accordingly, referring to Fig. 3, a kind of iris identification method is also proposed in the present embodiment,Apply above-mentioned iris identification device, this iris identification method comprises the following steps:
Step 300, obtain the personnel's to be identified that iris recognition camera lens obtains visible ray human eyeImage and infrared light eye image;
Step 302, visible ray eye image and infrared light eye image are carried out to fusion treatment,Obtain fused images;
Step 304, from the fused images obtaining, determine eye image region;
Step 306, in eye image region, determine infrared light iris image;
The infrared light iris image that step 308, basis are determined, to personnel's to be identified bodyPart is verified.
In iris identification method, according to the infrared light iris image of determining, to be identifiedPersonnel's identity is verified, comprises the following steps (1) to step (4):
(1) infrared light iris image is carried out to Image Feature Detection, obtain infrared light iris figureThe characteristics of image of picture;
(2) judge whether from iris image memory module, to inquire and infrared light iris imageThe immediate characteristics of image of characteristics of image, if it is perform step 3, if otherwise heldRow step 4;
(3) determine that personnel to be identified are by authentication;
(4) determine that personnel to be identified are by authentication.
In sum, a kind of iris recognition camera lens, device and method that the present embodiment provides,By the eyes transmitting to personnel to be identified of infrared light supply and visible light source is set in camera lensInfrared light and visible ray, and the spectral module arranging by imaging device and filtration module are by peopleMember's eyes reflect Yi road light and are divided into visible ray eyes imaging light He Yi road infrared lightEyes imaging light, thus visible ray eye image and infrared light people eye pattern in the time of imaging, obtainedPicture, and according to the visible ray eye image obtaining and infrared light eye image to personnel to be identifiedIdentity identify, and by iris recognition, personnel's identity is tested in prior artIn the process of card, need human eye to occur just can gathering people in the central area of iris recognition camera lensThe iris image of eye is compared, and occurs, just without human eye in the central area of iris recognition camera lensThe iris image that can gather human eye carries out the checking of personnel identity, passes through rainbow thereby reducedFilm image carries out the time of authentication, improved iris recognition user experience, make fromIn long distance or large picture image, promptly carry out iris image identification and become possibility.
The computer program that carries out iris identification method that the embodiment of the present invention provides,Comprise the computer-readable recording medium of having stored program code, described program code comprisesInstruction can be used for carrying out the method described in previous methods embodiment, and specific implementation can be referring to sideMethod embodiment, does not repeat them here.
Those skilled in the art can be well understood to, for convenience and simplicity of description,The specific works process of system, device and the unit of foregoing description, can be with reference to preceding methodCorresponding process in embodiment, does not repeat them here.
In the several embodiment that provide in the application, should be understood that, disclosed system,Apparatus and method, can realize by another way. Device embodiment described aboveOnly that schematically for example, the division of described unit, only draws for a kind of logic functionPoint, when actual realization, can there is other dividing mode, again for example, multiple unit or assemblyCan in conjunction with or can be integrated into another system, or some features can ignore, or notCarry out. Another point, shown or discussed coupling each other or direct-coupling or communicationConnection can be by some communication interfaces, INDIRECT COUPLING or the communication connection of device or unit,Can be electrically, machinery or other form.
The described unit as separating component explanation can be or can not be also physically to divideOpen, the parts that show as unit can be or can not be also physical location,To be positioned at a place, or also can be distributed on multiple NEs. Can be according to realityThe needs on border select some or all of unit wherein to realize the order of the present embodiment scheme.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a placeIn reason unit, can be also that the independent physics of unit exists, also can two or two withUpper unit is integrated in a unit.
If described function realizes and as product pin independently using the form of SFU software functional unitWhen selling or using, can be stored in a computer read/write memory medium. Based on like thisUnderstanding, the portion that technical scheme of the present invention contributes to prior art in essence in other wordsPoint or the part of this technical scheme can embody with the form of software product, this calculatingMachine software product is stored in a storage medium, comprises that some instructions are in order to make a meterCalculation machine equipment (can be personal computer, server, or the network equipment etc.) carry out thisInvent all or part of step of method described in each embodiment. And aforesaid storage medium bagDraw together: USB flash disk, portable hard drive, read-only storage (ROM, Read-OnlyMemory),Random access memory (RAM, RandomAccessMemory), magnetic disc or CDEtc. various media that can be program code stored.
The above, be only the specific embodiment of the present invention, but protection scope of the present inventionBe not limited to this, any be familiar with those skilled in the art the present invention disclose skillWithin the scope of art, can expect easily changing or replacing, all should be encompassed in protection scope of the present inventionWithin. Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. an iris recognition camera lens, is characterized in that, comprising: imaging device and be instituteState at least one infrared light supply and at least one visible light source of imaging device configuration;
Described infrared light supply and described visible light source are arranged on around described imaging device;
Described imaging device comprises the spectral module, filtration module and the image-forming module that set gradually;
Described infrared light supply, sends infrared light for the eyes to personnel to be identified, makes instituteState eyes that imaging device collects described personnel to be identified under described infrared light supply irradiatesThe infrared illumination eye image arriving;
Described visible light source, sends visible ray for the eyes to personnel to be identified, makes instituteState eyes that imaging device collects described personnel to be identified under described visible light source irradiatesThe visible ray eye image arriving;
Described spectral module, for by described personnel's to be identified eye reflections Yi road lightBe divided into two-way eyes imaging light, described two-way eyes imaging light includes visible ray and redOuter light;
Described filtration module, for described two-way imaging light is carried out to filtering operation, obtainsOne visible ray eyes imaging light He Yi road, road infrared light eyes imaging light;
Described image-forming module, for to the described visible ray eyes imaging light obtaining and described inInfrared light eyes imaging light carries out imaging, obtains respectively visible ray eye image and redOuter smooth eye image.
2. iris recognition camera lens according to claim 1, is characterized in that, described inSpectral module comprises the beam splitter prism and the reflecting prism that be arranged in parallel, described beam splitter prism and instituteThe angle of stating reflecting prism and described filtration module is 45 degree;
Described beam splitter prism, for by described personnel's to be identified eye reflections Yi road lightIn part light reflection to described reflecting prism, and another portion of a road light described in transmissionLight splitter, is divided into described two-way eyes imaging light by a described road light;
Described reflecting prism, for the described part light reflection that described beam splitter prism is reflectedTo described filtration module.
3. iris recognition camera lens according to claim 1, is characterized in that, described inFiltration module comprises: the IR-cut filter plate being set up in parallel and visible ray cut-off filter plate;
Described IR-cut filter plate, for to described two-way imaging light Zhong mono-tunnel imagingLight carries out filtering operation, obtains a road visible ray eyes imaging light;
Described visible ray cut-off filter plate, for becoming described two-way imaging light Zhong mono-tunnelCarry out filtering operation as light, obtain a road infrared light eyes imaging light.
4. iris recognition camera lens according to claim 1, is characterized in that, described inImage-forming module comprises the image-forming objective lens and the imaging sensor that set gradually;
Described image-forming objective lens, for to described visible ray eyes imaging light and described infrared lightEyes imaging light carries out optical treatment;
Described imaging sensor, for the described visible ray eyes imaging light to after optical treatmentLine and described infrared light eyes imaging light carry out imaging operation, obtain respectively described visible rayEye image and described infrared light eye image.
5. iris recognition camera lens according to claim 1, is characterized in that, described inWhen infrared light supply and described visible light source are multiple, multiple described infrared light supplies and described visibleLight source evenly arranges respectively in the pickup area of described imaging device.
6. an iris identification device, comprises the iris described in claim 1-5 any oneIdentification camera lens, is characterized in that, described iris identification device also comprises: iris image processingModule and iris image memory module;
Described iris image processing module respectively with described iris recognition camera lens and described iris figurePicture memory module connects;
Described iris image processing module, for obtaining treating that described iris recognition camera lens obtainsIdentification personnel's visible ray eye image and infrared light eye image, and by the institute gettingState visible ray eye image and described infrared light eye image and described iris image storage mouldThe registered iris image of storing in piece, verifies personnel's to be identified identity;
Described iris image memory module, for storing registered iris image.
7. iris identification device according to claim 6, is characterized in that, described inIris image processing module comprises:
Image acquisition unit, for obtaining described to be identified that described iris recognition camera lens obtainsPersonnel's described visible ray eye image and described infrared light eye image;
Fusion treatment unit, for to described visible ray eye image and described infrared light human eyeImage carries out fusion treatment, obtains fused images;
Region determining unit, for determining eye image from the described fused images obtainingRegion;
Image determining unit, for determining infrared light iris in described eye image regionImage;
Authentication unit, for according to the described infrared light iris image of determining, treats describedIdentification personnel's identity is verified.
8. iris identification device according to claim 7, is characterized in that, described inAuthentication unit comprises:
Image Feature Detection subelement, for carrying out image spy to described infrared light iris imageLevy detection, obtain the characteristics of image of described infrared light iris image;
Judgment sub-unit, inquires from described iris image memory module for judging whetherThe immediate characteristics of image of characteristics of image with described infrared light iris image;
Identity is determined subelement, for when the judged result of described judgment sub-unit is when being,Described iris image processing module determines that described personnel to be identified are by authentication.
9. an iris identification method, is characterized in that, application the claims 6-8Iris identification device described in any one, described method comprises:
Obtain the personnel's to be identified that iris recognition camera lens obtains visible ray eye image and infraredLight eye image;
Described visible ray eye image and described infrared light eye image are carried out to fusion treatment,Obtain fused images;
From the described fused images obtaining, determine eye image region;
In described eye image region, determine infrared light iris image;
According to the described infrared light iris image of determining, to described personnel's to be identified identityVerify.
10. iris identification method according to claim 9, is characterized in that, described inAccording to the described infrared light iris image of determining, described personnel's to be identified identity is carried outChecking, comprising:
Described infrared light iris image is carried out to Image Feature Detection, obtain described infrared light rainbowThe characteristics of image of film image;
Judge whether from described iris image memory module, to inquire and described infrared light irisThe immediate characteristics of image of characteristics of image of image;
If so, determine that described personnel to be identified are by authentication.
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