CN103440483B - A kind of iris image acquiring device of initiative focusing - Google Patents
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- 238000003384 imaging method Methods 0.000 abstract description 8
- 230000036541 health Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 22
- 238000002372 labelling Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 8
- 206010044074 Torticollis Diseases 0.000 description 4
- 208000018197 inherited torticollis Diseases 0.000 description 4
- 238000013441 quality evaluation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 210000004556 brain Anatomy 0.000 description 2
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Abstract
The invention discloses the iris image acquiring device of a kind of initiative focusing, this device is mainly by iris capturing camera lens, infrarede emitting diode, computer and opaque cylinder (4) composition, described iris capturing camera lens (8) is fixed on opaque cylinder (4) rear side, described infrarede emitting diode is distributed on iris capturing camera lens (8) around, the upper and lower of described opaque cylinder (4) front side is fixed with annulus, the rear side upper and lower of described opaque cylinder (4) is also respectively fixed with cuboid as scale, eye-catching rectangle symbol it is coated respectively with on two scales, described computer (10) is respectively by USB connecting line and iris capturing camera lens (8), trigger switch (9) to be connected with buzzer (11).The present invention can effectively overcome that the hidden danger in terms of health, equipment price are high, be difficult to Iris Location in the optimal imaging distance range of camera lens, obtain the problem that the aspects such as iris image time length clearly are not enough.
Description
Technical field
The present invention relates to a kind of iris image acquiring device, it is more particularly related to one has initiative, fast
The iris image acquiring device of speed focusing.
Background technology
Iris recognition technology as one of the biological identification technology of identification, its stability, untouchable, safety,
Uniqueness has obtained being widely recognized as of scholars.The definition of iris image, directly affect Iris Location, characteristic matching,
The effect of feature identification, is that impact utilizes iris feature to carry out the key factor of identification.Rainbow clearly is collected for ensureing
Film image, has occurred in that various iris image gathering system both at home and abroad at present, by positioning auxiliary device Type division, has mainly connect
Touch positioning auxiliary device and contactless positioning auxiliary device.
Contact positioning auxiliary device has only to before camera lens to fix one and is similar to tubular cavity, wherein tubular cavity
The optimal imaging distance of a length of camera lens.Contact positioning auxiliary device expense is low, method simple, accurate positioning, but adopts every time
During collection, need picker to contact with auxiliary equipment, especially when carrying out many human iris and gathering, bring the hidden danger in terms of health.
Contactless positioning auxiliary device avoids the deficiency in terms of health concerns, easy to use, accurate positioning, but existing noncontact
Formula positioning auxiliary device, have that equipment price is high, be difficult to Iris Location in the optimal imaging distance range of camera lens, obtain clear
The deficiency of the aspects such as clear iris image time length.The contactless positioning auxiliary device occurred mainly has:
1. utilize the equipment such as distance measuring sensor, motor to realize the camera lens automatic focusing function to iris.Such device
First pass through distance measuring sensor and measure the distance between camera lens and collected eyes, if this distance is not the optimal one-tenth of camera lens
Image distance from, then the forward and backward motion recycling motor adjusts the spacing of camera lens and collected eyes, finally realizes this distance
Optimal imaging distance for camera lens.When gathering iris every time, it is necessary to assure the distance that distance measuring sensor is measured is camera lens and quilt
Gather the distance between eyes.Such device can realize automatic positioning function, easy to use, but in gatherer process, to adopting
The collected eye position of collection person requires the highest, needs picker by virtue of experience or under other people instruct, it is ensured that collected eyes
The distance between camera lens can be gone out by range finding sensor measurement；Control owing to picker lacks the subjectivity to device, adopting
During collection, picker easily occurs that nictation, eye closing, torticollis etc. are unfavorable for collecting the situation generation of complete iris image；High
The distance measuring sensor of precision is expensive with motor, is also the weak point of such device.
2. utilize the equipment such as display to realize feedback function, provide the user the iris image information of Real-time Collection, prompting
Whether user collects the iris image meeting status requirement with definition requirement.Such device ensure that picker can see in real time
To position, the definition situation of collected eyes, when eye position is correct, iris definition meet when requiring, proceed by rainbow
Film collecting work.Owing to picker has the control of subjectivity to device, nictation, eye closing, torticollis etc. therefore can be avoided to be unfavorable for
The situation collecting complete iris image occurs, but merely with equipment such as display, determines the optimal imaging distance of a camera lens,
Fail to realize the determination to lens imaging distance range, add picker and determine the difficulty of collected eye position；Picker
When determining collected eye position by equipment such as display, owing to lacking reference substance, need constantly to sound out to adjust collected eye
Eyeball position, until showing over the display, then is fed back by the collected eye position information in display, carries out corresponding
Ground regulation, adds the iris capturing time；The equipment such as display too increase the cost of iris image acquiring device.
3. by the camera lens forward and backward movement of driven by motor camera lens or picker's automatic moving, Real-time Collection a series of iris figure
Picture, utilizing quality evaluation algorithm that a series of iris images collected are carried out quality evaluation, meeting definition until searching out
Till the iris image required.Such device ensure that and collects satisfactory clear iris image, but need to be to collecting
A series of iris images carry out quality evaluation respectively, finally select satisfactory iris image, time-consumingly.
The various combination of above different types of contactless positioning auxiliary device, the new auxiliary device constituted fails to offset
The originally weak point of respective auxiliary device.
Summary of the invention
The present invention utilizes opaque cylinder, annulus, scale, camera lens, infrarede emitting diode, triggering switch, buzzer, electricity
A kind of iris collection device of brain composition.The collected eyes initiative utilizing annulus and scale to realize picker searches out camera lens
Optimal imaging scope, presses triggering switch by picker, starts iris image acquiring work, and stores the image on computer
In, utilize buzzer to realize notifying the information that picker's iris image acquiring is complete.A kind of initiative focusing of the present invention
Iris image acquiring device and method, it is achieved that without safe and sanitary hidden danger, equipment cost is low, method is simple, focusing accuracy
High, the iris capturing time is short, picker can control the iris capturing time initiatively thus the behaviors such as the nictation of avoiding, is prone to real
The advantage such as now.
The technical problem to be solved is to overcome health concerns, the auxiliary equipment price that prior art exists
High, be difficult to search out the image-forming range scope of camera lens, the problem of iris capturing time length, it is provided that the rainbow of a kind of initiative focusing
Film image harvester.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that realization, and accompanying drawings is as follows:
The iris image acquiring device of a kind of initiative focusing, mainly by iris capturing camera lens, infrarede emitting diode, electricity
Brain and opaque cylinder 4 form, and described iris capturing camera lens 8 is fixed on rear side of opaque cylinder 4, iris capturing camera lens 8 optical axis
Overlap with opaque cylinder 4 centrage；Described infrarede emitting diode gathers situation according to actual iris, is distributed on iris capturing
Around camera lens 8, the number of infrarede emitting diode is at least 4；At fixed above some p on front side of described opaque cylinder 4 and
Before being respectively fixed with annulus I 2 and annulus II 3, | pk |=2R, the plane of two annulus and opaque cylinder 4 at lower fixing point k
Side is at grade；The rear side upper and lower of described opaque cylinder 4 is also respectively fixed with cuboid as scale I 6 and mark
Chi II 13, and two scales are parallel to the line that straight line pk, straight line pk are opaque upper and lower 2 p and k of cylinder 4 leading flank,
Eye-catching marker I 5 and marker II 14 it is coated respectively with, it is ensured that this labelling easy gathered person seen by annulus on two scales；Institute
State computer 10 to be connected with iris capturing camera lens 8, triggering switch 9 and buzzer 11 by USB connecting line respectively, iris capturing mirror
8 start to take pictures by triggering switch 9 triggering, and the eye image photographed is passed to buzzer sounding after computer by camera lens.
Described opaque cylinder 4 length L should meet relational expression, and L ＜ m contacts, in formula with opaque cylinder 4 avoiding eyes
M is iris capturing camera lens 8 photocentre o and the distance of some b, and wherein b is the camera lens image-forming range scope closest approach to iris.
Follow-up Algorithm of Iris Recognition is increased for avoiding described iris capturing camera lens 8 to photograph the inwall of opaque cylinder 4
Amount of calculation, opaque cylinder 4 radius R should meet relational expression For axis 1 with straight line od's or straight line oc
Angle.
According between described iris capturing camera lens 8 photocentre o and b, the iris image that camera lens collects, it is impossible to meet follow-up
The discrimination requirement of Algorithm of Iris Recognition, determines the camera lens image-forming range scope closest approach b for iris；According to adopting with iris
The distance of collection camera lens 8 photocentre o is more than photocentre and puts in the range of a distance, the iris image that iris capturing camera lens 8 collects, no
The discrimination requirement of follow-up Algorithm of Iris Recognition can be met, determine the camera lens image-forming range scope solstics a for iris；According to
The parameter that camera lens is given, determines that the Radix Rumicis of iris capturing camera lens is, the distance measuring camera lens photocentre o and closest approach b is m,
It is m+2n with the distance of solstics a.
The length of described annulus I 2 and the radius r of annulus II 3 and described marker I 5 is determined by below equation:
Point z is line segment ab and the midpoint of line segment cd, cd ⊥ ab,| ob |=m,
| bz |=n, therefore, in Δ coz,
Straight line acq and scale I 6 intersection point are e, and straight line dbp and scale I 6 intersection point are f, and straight line adt and scale II 13 intersection point are h, straight line
Cbk and scale II 13 intersection point are g, and due to | cz |=| zd |, | az |=| zb |, therefore straight line ac is parallel to straight line db, therefore | qp
|=| ef |=| cd |, due to | qp |=2r, obtainsTherefore, according to meter
Calculate formulaCalculate annular radii r, according to computing formulaCalculate marker I
The length of 5.
Described marker I 5 is determined by below equation apart from the position of described iris capturing camera lens 8 photocentre o:
In Δ eao, due to | oe |=| oa | × tan ∠ caz, tan ∠ caz=| cz |/| az |, | oa |=m+2n,
| az |=n, obtainsTherefore, according to
This formula is obtained marker I 5 distance iris and is gathered the position of camera lens 8 photocentre o；
Described marker II 14 is determined by below equation apart from the position of camera lens photocentre o and the length of marker II 14:
In like manner, obtain Therefore, according to formulaObtain the marker II 14 position apart from camera lens photocentre o；According to formulaObtain the length of marker II 14.
According to described each part dimension, it is determined that the radius r size of annulus I 2 and annulus II 3, the position on scale I 6
Draw a marker I 5, a length of ef by conspicuous color at oe, at the position oh on scale II 13, draw a mark by conspicuous color
Remember II 14, a length of gh；Straight line eqa and straight line gkb intersection point are c, and straight line hta and straight line fpb intersection point are d, and region acbd is mirror
The scalp acupuncture image-forming range scope to iris.
Camera lens is connected with computer by iris collection device of the present invention by first USB connecting line, by second
Triggering switch is connected by root USB connecting line with computer, is connected with computer by buzzer, by not by the 3rd USB connecting line
Transparent cylinder, two annulus, two scales, two labellings, camera lens, one group of infrarede emitting diode, trigger switch, computer and honeybee
Ring device constitutes iris collection device.Utilize software programming, it is achieved camera lens can be triggered by triggering switch and start to take pictures, camera lens
After the eye image photographed is passed to computer, buzzer sounding, sound go three seconds.
Compared with prior art the invention has the beneficial effects as follows:
The iris image acquiring device of a kind of initiative the most of the present invention focusing fills with existing contact with method
Put and compare, there is the feature without health concerns.
The iris image acquiring device of a kind of initiative the most of the present invention focusing utilizes range finding with method with existing
Sensor realizes compared with the contactless device that focuses between camera lens with eyes, have that device is simple, low cost, focus accurately,
Focus that speed is fast, be easily achieved, reduce the feature collecting the defective situations such as eye closing.
The iris image acquiring device of a kind of initiative the most of the present invention focusing utilizes display with method with existing
Screen etc. have initiative be eye location, the device that focuses compare, have that installation cost is low, it is high to focus success rate, focus speed
Fast feature.
The iris image acquiring device of a kind of initiative the most of the present invention focusing needs shooting with method with existing
A series of iris images, by iris quality evaluation algorithm evaluate iris image quality device compare, assembly of the invention can
Disposably to collect iris image clearly, have and focus fireballing feature.
The iris image acquiring device of a kind of initiative the most of the present invention focusing and method and existing automatic collection
Iris, utilizing the prompting such as voice message sound to gather complete method to compare, the inventive method triggers iris capturing by initiative
Lens switch device, it is to avoid nictation, eye closing, torticollis etc. are unfavorable for collecting the feelings of complete iris image when iris capturing
Condition, follow-up iris image processes, accelerates iris matching speed.
The iris image acquiring device of a kind of initiative the most of the present invention focusing and method, its dress
Putting low cost, simple in construction, focus accurately, gather iris picture process simple, convenient, speed is fast, and step is clear, saves time, and saves
Power, and the success rate disposably collecting iris image clear, complete is high.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the iris employed in iris image acquiring device and the method for a kind of initiative of the present invention focusing
The structural representation of harvester；
Fig. 2 is iris image acquiring device and the iris capturing dress in method of a kind of initiative of the present invention focusing
Put each part dimension and determine the boost line schematic diagram of process；
Fig. 3 is that the iris image acquiring device of a kind of initiative of the present invention focusing is adopted with the iris image in method
Collection process flow diagram flow chart.
In figure: 1-axis, 2-annulus I, 3-annulus II, the opaque cylinder of 4-, 5-marker I, 6-scale I, infrared of 7-
Optical diode I, 8-iris capturing camera lens, 9-triggers switch, 10-computer, 11-buzzer, 12-infrarede emitting diode II, 13-
Scale II, 14-marker II
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is explained in detail:
1. build iris collection device
Refering to Fig. 1, iris image acquiring device is by the identical annulus 1 of an opaque cylinder, radius and annulus 2, length
Equal scale 1 and the labelling 1 on scale 2, scale 1,2, six infrarede emitting diodes of labelling on scale 2, an iris
Gathering camera lens, triggering switch, computer, a buzzer composition, camera lens is positioned over the side of cylinder, the optical axis of camera lens
Overlapping with cylinder axis, cylinder opposite side is used for gathering iris image.Six infraluminescence two poles using wavelength to be 850nm
Pipe, by it evenly around around camera lens, uses opaque white color scale, and the marker color on scale uses redness, opaque
Cylinder and annulus use black plastic material, and for increasing the comfortableness by annulus point of aim mark, annulus outer edge width is adopted
With 1cm, the camera lens in iris collection device, buzzer, triggering switch are connected with computer by USB, utilize VC++ to write control
The module of USB port processed, this module can realize receiving the iris image of camera lens collection, control buzzer, receives triggering and open
Off status.
2. determine opaque cylinder, annulus, labelling, the size of scale and effective areas imaging of collected eyes
Opaque drum length is L, and circular cylinder radius is R.For ensureing that eyes do not contact with opaque cylinder, relation should be met
Formula L < m.
For avoiding iris capturing lens shooting to increase the amount of calculation of follow-up Iris Location to the inwall of opaque cylinder, should
Meet relational expression
Refering to Fig. 2, the Radix Rumicis of camera lensFor meeting the requirements that camera lens can collect between some a and some b
Clear iris image scope, | ob |=m=19cm, | ab |=2n=2cm.Annular radii is r, and some p is that annulus 1 is with opaque
Fixing point between cylinder, some k is the fixing point between annulus 2 and opaque cylinder, | pq |=2r, | kt=2r.Point z is line
Section ab and the midpoint of line segment cd, cd ⊥ ab,| ob |=m, | bz |=n, therefore
In Δ coz,Straight line acq and mark
Chi 1 intersection point is e, and straight line dbp and scale 1 intersection point are f, and straight line adt and scale 2 intersection point are h, and straight line cbk and scale 2 intersection point are g,
Due to | cz |=| zd |, | az |=| zb |, therefore straight line ac is parallel to straight line db, therefore | qp |=| ef |=| cd |, by with | qp
|=2r, can obtainIn Δ eao,
Due to | oe |=| oa | × tan ∠ caz, tan ∠ caz=| cz/ | az |, | oa |=m+2n,|
Az |=n, can obtainIn like manner, can obtain Due to R=(m-L) × tan (∠ pbo), ∠ pbo=∠ caz, can obtain| ef | is labelling 1 length, and | gh | is labelling 2 length, and H1 is scale 1 length, and H2 is mark
Chi 2 length.
By m=19cm, n=1cm,Can obtain following result:
| gh |=16.56cm, | oh |=173.88cm, H1=174cm, H2=174cm.
Camera lens can collect the region of effective iris image, the i.e. area of rhombus acbd
Relational expression should be met owing to L should meet relational expression: L < m, R:I.e. R >=0.414L,
In conjunction withCan push away
Go out
L≤18.095, R, L value relation is as shown in table 1.
Table 1 R value and the corresponding relation unit of L-value: cm
L-value is the biggest, and when carrying out iris capturing, the opaque cylinder of eye distance is the nearest, hypotelorism, can increase not relaxing of people
Clothes sense, due to m=19cm, we make L maximum occurrences be 15cm, and the present embodiment takes L=13cm at random, table 1 can draw impermeable
The radius R=49.68cm of bright cylinder.
For increasing identification, scale 1 and scale 2 color elect white as, and the color of labelling 1 and labelling 2 elects redness as.Point
In the region that a, some c, some b, some d form, picker can see labelling 1, through annulus through annulus 1 by collected eyes
2 see labelling 2, and meanwhile, in this region, camera lens can photograph satisfactory clear iris image, it may be assumed that if picker
When simultaneously viewing labelling 1 with labelling 2 by collected eyes through annulus 1 and annulus 2, show that tested eyes are in region acbd
In, satisfactory clear iris picture can be collected by camera lens.
In sum, each part dimension of iris collection device is as follows: the radius of opaque cylinder is 49.68cm, a length of
13cm；Annular radii is 8.28cm, and outer edge width is 1cm；Length of the scale is 174cm, mark lengths 16.56cm, labelling
Apogee distance photocentre distance is 173.88cm.
3. iris capturing process.
Refering to Fig. 3, picker is according to self height, through the comfort level of annulus point of aim mark, from Row sum-equal matrix iris capturing
Position between device and collected eyes, when simultaneously viewing labelling 1 and labelling 2, shows that eyes are positioned at best region, prepares
Press triggering switch, now, the stability of picker's iris collection device to be ensured, be careful not to blink, close simultaneously
Eye, torticollis etc. affect the action of iris image acquiring, after pressing triggering switch, wait iris image acquiring, hear that buzzer is sent out
Sound, after prompting picker's iris image acquiring, picker may exit off.It is millisecond that camera lens gathers the process of iris image
Level, therefore presses triggering switch from picker complete to iris image acquiring, and this process time is the shortest, will not carry to picker
Carry out uncomfortable sensation.
Claims (1)
1. an iris image acquiring device for initiative focusing, mainly by iris capturing camera lens, infrarede emitting diode, computer
Forming with opaque cylinder (4), described iris capturing camera lens (8) optical axis overlaps with opaque cylinder (4) centrage；Described infrared
Light emitting diode gathers situation according to actual iris, is distributed on iris capturing camera lens (8) around, the number of infrarede emitting diode
It is at least 4；Described computer (10) is respectively by USB connecting line and iris capturing camera lens (8), triggering switch (9) and buzzer
(11) being connected, iris capturing camera lens (8) starts to take pictures by triggering switch (9) triggering, and the eye image that camera lens will photograph passes
To buzzer sounding after computer；It is characterized in that:
Described iris capturing camera lens (8) is fixed on opaque cylinder (4) rear side, and the top of described opaque cylinder (4) front side is solid
Be respectively fixed with annulus I (2) and annulus II (3) at fixed point p place and lower fixing point k, | pk |=2R, the plane of two annulus and
Opaque cylinder (4) leading flank is at grade；The rear side upper and lower of described opaque cylinder (4) is also respectively fixed with length
Cube as scale I (6) and scale II (13), and two scales to be parallel to straight line pk, straight line pk be that opaque cylinder (4) is front
The line of upper and lower 2 p and k in side, two scales is coated respectively with eye-catching marker I (5) and marker II (14), it is ensured that marker I
(5) seen by annulus I (2) and annulus II (3) with marker II (14) easily gathered person；
Described opaque cylinder (4) length L should meet relational expression, and L ＜ m contacts, in formula with opaque cylinder (4) avoiding eyes
M is iris capturing camera lens (8) photocentre o and the distance of some b, and wherein b is the camera lens image-forming range scope closest approach to iris；
Follow-up Algorithm of Iris Recognition is increased for avoiding described iris capturing camera lens (8) to photograph the inwall of opaque cylinder (4)
Amount of calculation, opaque cylinder (4) radius R should meet relational expression For axis (1) and straight line od or straight line
The angle of oc；
According between described iris capturing camera lens (8) photocentre o and b, the iris image that camera lens collects, it is impossible to meet follow-up rainbow
The discrimination requirement of film recognizer, determines the camera lens image-forming range scope closest approach b for iris；According to iris capturing
The distance of camera lens (8) photocentre o is more than photocentre and puts in the range of a distance, the iris image that iris capturing camera lens (8) collects,
The discrimination requirement of follow-up Algorithm of Iris Recognition can not be met, determine the camera lens image-forming range scope solstics a for iris；Root
The parameter be given according to camera lens, determines that the Radix Rumicis of iris capturing camera lens isThe distance measuring camera lens photocentre o and closest approach b is
M, is m+2n with the distance of solstics a；
The length of described annulus I (2) and the radius r of annulus II (3) and described marker I (5) is determined by below equation:
Point z is line segment ab and the midpoint of line segment cd, cd ⊥ ab,| ob |=m, | bz
|=n, therefore, in Δ coz,
Straight line acq and scale I (6) intersection point are e, and straight line dbp and scale I (6) intersection point are f, and straight line adt and scale II (13) intersection point are h,
Straight line cbk and scale II (13) intersection point are g, and due to | cz |=| zd |, | az |=| zb |, therefore straight line ac is parallel to straight line db,
Therefore | qp |=| ef |=| cd |, due to | qp |=2r, obtainsTherefore,
According to computing formulaCalculate annular radii r, according to computing formulaCalculate
Go out the length of marker I (5)；
Described marker I (5) is determined by below equation apart from the position of described iris capturing camera lens (8) photocentre o:
In Δ eao, due to | oe |=| oa | × tan ∠ caz, tan ∠ caz=| cz |/| az |, | oa |=m+2n,
| az |=n, obtainsTherefore, according to this formula
Obtain marker I (5) distance iris and gather the position of camera lens (8) photocentre o；
The position of described marker II (14) distance camera lens photocentre o and the length of marker II (14) are determined by below equation:
In like manner, obtainTherefore, according to formulaObtain the position of marker II (14) distance camera lens photocentre o；According to formulaObtain the length of marker II (14)；
According to described each part dimension, it is determined that the radius r size of annulus I (2) and annulus II (3), the position on scale I (6)
Put and draw a marker I (5), a length of ef by conspicuous color at oe, draw by conspicuous color at the position oh on scale II (13)
One marker II (14), a length of gh；Straight line eqa and straight line gkb intersection point are c, and straight line hta and straight line fpb intersection point are d, region
Acbd is the camera lens image-forming range scope for iris.
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| CN105469483B (en) * | 2015-11-20 | 2018-06-29 | 北京天诚盛业科技有限公司 | The method and apparatus of iris gate inhibition reliability detection |
| CN105654040B (en) * | 2015-12-24 | 2020-01-03 | 华为技术有限公司 | Distance measurement method based on iris and mobile terminal |
| CN107437049A (en) * | 2016-05-28 | 2017-12-05 | 深圳富泰宏精密工业有限公司 | Iris detection system, portable electron device and iris detection method |
| CN107220636B (en) * | 2017-06-30 | 2019-11-12 | Oppo广东移动通信有限公司 | Control method, electronic device and computer readable storage medium |
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| US5572596A (en) * | 1994-09-02 | 1996-11-05 | David Sarnoff Research Center, Inc. | Automated, non-invasive iris recognition system and method |
| EP0910986A1 (en) * | 1997-10-24 | 1999-04-28 | BRITISH TELECOMMUNICATIONS public limited company | Imaging apparatus |
| US6289113B1 (en) * | 1998-11-25 | 2001-09-11 | Iridian Technologies, Inc. | Handheld iris imaging apparatus and method |
| CN100352400C (en) * | 2004-09-21 | 2007-12-05 | 中国科学院自动化研究所 | Portable iris image acquiring device |
| CN1326084C (en) * | 2005-03-24 | 2007-07-11 | 上海邦震科技发展有限公司 | Non-contact type self-feedback iris image acquisition device |
| CN201628973U (en) * | 2010-04-20 | 2010-11-10 | 北京森博克智能科技有限公司 | Iris image acquisition device with iris identification trigger shortcut key |
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2013
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