CN108241841A - A kind of anti-vacation refers to palm print collection system - Google Patents
A kind of anti-vacation refers to palm print collection system Download PDFInfo
- Publication number
- CN108241841A CN108241841A CN201611214138.7A CN201611214138A CN108241841A CN 108241841 A CN108241841 A CN 108241841A CN 201611214138 A CN201611214138 A CN 201611214138A CN 108241841 A CN108241841 A CN 108241841A
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- CN
- China
- Prior art keywords
- light source
- false
- imaging
- source
- collection system
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- 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.)
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Links
- 238000003384 imaging method Methods 0.000 claims abstract description 37
- 239000011521 glass Substances 0.000 claims abstract description 16
- 210000003462 vein Anatomy 0.000 claims abstract description 5
- 210000003743 erythrocyte Anatomy 0.000 claims abstract description 3
- 238000005286 illumination Methods 0.000 claims description 6
- 239000005357 flat glass Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000002834 transmittance Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
- G06V40/1394—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger using acquisition arrangements
-
- 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
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
Abstract
The present invention relates to a kind of anti-vacations to refer to palm print collection system, which mainly includes acquisition glass, anti-false light source, imaging source, imaging microscope group, circuit board, picture receiver, camera；When system works, finger or palm are restrained in acquisition glass collection surface, and lines image, by imaging microscope group, is ultimately imaged in imaging sensor, vein image images in camera under the action of anti-false light source under the action of imaging source；The anti-false light source is infrared band light source, it is opposite to be placed in acquisition glass, since erythrocyte is extremely strong for infrared light absorbability, a width finger or palm medium sized vein train of thought clearly apparent image are obtained eventually by camera when acquiring lines, the low false fingerprint membrane material of light transmittance can be shielded；The imaging source is alternative light source, and since the penetration capacity of different-waveband is different, system can acquire the fingers and palms print image for obtaining several different depths, and the high false fingerprint membrane material of light transmittance can be shielded by comparison.
Description
Technical field
The invention belongs to precision optical instrument technical fields, are related to a kind of finger palm print collection system, more particularly to a kind of anti-
Vacation refers to palm print collection system.
Background technology
With reaching its maturity for precision optical instrument equipment, optical profile type palm fingerprint instrument is more and more widely used in people's
In daily life, but the appearance of various forms of false fingers and palms lines reduces the safety of fingers and palms line collecting device and therefore restricts
Its application range and market.Traditional finger palm print instrument is directly made of optical element group and picture receiver, as long as there is bumps
Uneven lines is restrained can just be imaged on acquisition glass, other people fingers and palms are copied with using the stronger material of the plasticity such as silica gel
Line phenomenon is more and more simpler, more and more common, and the safety of the instrument and equipment of authentication is carried out using fingers and palms line, is faced with more
Carry out bigger challenge.
With becoming clear day by day for problem, the method for some anti-false fingers and palms line acquisitions occurs in succession：Some fingers and palms line acquisition systems
System is that detection function is held in power-up in collection surface, such as " a kind of capacitance optical fingerprint acquisition instrument "（Application number 20150627524.8）,
Although such system can shielded segment vacation fingers and palms line film material, be similar to this conductive classification material of electric silica gel and copy
Into false fingers and palms line film can also pass through detection, however it remains security risk；Finger palm print collection system be collocation one monitoring
The accessory detection unit of velocity of blood flow, such as " living body finger print identification device and method "（Application number 201510958255.3）, it is such
System is i.e. enabled to reach the function, can not also detect, this form of playing tricks of live finger wearing high transparency vacation fingerprint film.
Invention content
The technical problem to be solved in the present invention is to provide a kind of anti-vacations to refer to palm print collection system, for differentiating existing various vacations
Fingers and palms line situation.
In order to solve the above-mentioned technical problem, anti-vacation of the invention refers to palm print collection system mainly including fingers and palms line acquisition glass
Glass, anti-false fingers and palms line light source, imaging source, imaging microscope group, circuit board, picture receiver, camera；System work when, finger or
Palm restrain in acquisition glass collection surface on, lines image under the action of imaging source by imaging microscope group, be ultimately imaged in
Imaging sensor, vein image image in camera under the action of anti-false fingers and palms line light source；The use of the circuit board control system
Electric device is simultaneously powered, including anti-false light source, imaging source, picture receiver, camera；The anti-false light source is infrared band light
Source is placed in acquisition glass opposite direction, since erythrocyte is extremely strong for infrared light absorbability, eventually by phase when acquiring lines
Machine obtains a width finger or palm medium sized vein train of thought clearly apparent image, can shield the low false fingerprint membrane material of light transmittance；
The imaging source is alternative light source, and since the penetration capacity of different-waveband is different, different-waveband light source is controlled by circuit board
It works and acquires image, the fingers and palms lines of several different depths is obtained eventually by imaging sensor, by comparing different depth
The similarity of fingers and palms lines can shield the high false fingerprint membrane material of light transmittance.
Description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is that the anti-vacation of the present invention refers to the structure diagram of palm print collection system；
Fig. 2 is 1 structure diagram of the embodiment of the present invention；
Fig. 3 is 2 structure diagram of the embodiment of the present invention；
Fig. 4 is that the anti-false illumination of the present invention acquires example images figure.
Specific embodiment
Embodiment 1
As shown in Fig. 2, the anti-false fingerprint acquisition instrument using present system includes acquisition glass（1）, anti-false light source（2）, anti-vacation
Light source fixing frame（2-1）, imaging source（3）, imaging lens（4）, circuit board（5）, picture receiver（6）, connector（6-1）、
Pedestal（7）, upper casing（8）, rear baffle（9）, camera（10）；The acquisition glass includes fingerprint collecting face（1.1）, background surfaces
（1.2）, light incident surface（1.3）, image output face（1.4）；The anti-false light source（2）For infrared band LED array, it is fixed on anti-
False light source fixing frame（2-1）On；The anti-false light source fixing frame（2-1）It is fixed on upper casing（8）On, detachably；The imaging
Source（3）For equally distributed white light, feux rouges, green light, four kinds of wave bands of blue light LED array；The imaging source（3）, imaging lens
Head（4）, circuit board（5）, camera（10）It is fixed on pedestal（7）On；Described image receiver（6）Pass through connector（6-1）It is fixed
In imaging lens（4）On；The circuit board（5）It powers for USB, is directly connected with computer, and be anti-false light source（2）, imaging
Source（3）, picture receiver（6）, camera（10）Power supply；The pedestal（7）, upper casing（8）, rear baffle（9）It cooperatively forms as an envelope
Close stable equipment；When system works, finger restrains Collection prism（1）Fingerprint collecting face（1.1）,
Anti- false light source（2）During illumination, a width finger vena train of thought image, imaging source are obtained by camera（3）During illumination, prism
Internal light passes through image output face（1.4）, by imaging lens（4）, it is ultimately imaged in picture receiver（6）, gatherer process
Middle circuit board controls anti-false light source in very short time（2）With imaging source（3）In four kinds of wave band light sources illuminate respectively, finally
5 width images are obtained, fingerprint characteristic is assert by algorithm and differentiate that fingerprint is true and false.
Embodiment 2
As shown in figure 3, the anti-false fingerprint acquisition instrument using present system includes acquisition glass（1）, anti-false light source（2）, anti-vacation
Light source fixing frame（2.1）, imaging source（3）, speculum 1（4-1）, speculum 2（4-2）, speculum 3（4-3）, speculum 4（4-
4）, imaging lens（4-5）, circuit board（5）, picture receiver（6）, connector（6-1）, stent（7）, shell（8）, camera（9）；
The acquisition glass includes fingerprint collecting face（1.1）, light incident surface（1.2）, image output face（1.3）；The anti-false light source（2）
For infrared band LED array, it is fixed on anti-false light source fixing frame（2-1）On；The anti-false light source fixing frame（2-1）It is fixed on outer
Shell（8）On, detachably；The imaging source（3）For equally distributed white light, feux rouges, green light, four kinds of wave bands of blue light LED battle arrays
Row；The imaging source（3）, speculum 1（4-1）, speculum 2（4-2）, speculum 3（4-3）, speculum 4（4-4）, imaging lens
Head（4-5）, circuit board（5）, camera（9）It is fixed on stent（7）On；Described image receiver（6）Pass through connector（6-1）It is fixed
In imaging lens（4-5）On；The circuit board（5）It powers for external power supply, and passes through USB interface and be directly connected with computer, and
For anti-false light source（2）, imaging source（3）, picture receiver（6）, camera（9）Power supply；The stent（7）It is fixed on shell（8）
It is internal；The speculum 1（4-1）, speculum 2（4-2）, speculum 3（4-3）, speculum 4（4-4）Effect be reduce equipment
Volume；When system works, palm restrains Collection prism（1）Fingerprint collecting face（1.1）, anti-false light source（2）During illumination, pass through phase
Machine obtains a width finger vena train of thought image, imaging source（3）During illumination, prism internal light passes through image output face（1.3）,
Pass through speculum 1 successively（4-1）, speculum 2（4-2）, speculum 3（4-3）, speculum 4（4-4）, imaging lens（4-5）, most
Picture receiver is imaged in eventually（6）, circuit board controls anti-false light source in very short time in gatherer process（2）With imaging source
（3）In four kinds of wave band light sources illuminate respectively, finally obtain 5 width images, fingerprint characteristic assert by algorithm and differentiates fingerprint
It is true and false.
The present invention can differentiate that the vacation made by high transparency material refers to be suitably applied living body fingerprint acquisition system
Line film can also differentiate the false fingerprint film made by low-transmittance material, accomplish really false fingerprint recognition.
The present invention is not limited to the above embodiments, it should be appreciated that every in the claims in the present invention technical solution base
Any simple deformation made on plinth, all within the invention is intended to protection domain.
Claims (5)
1. anti-vacation refers to palm print collection system, it is characterised in that the technological system mainly includes acquisition glass（1）, anti-false light source（2）、
Imaging source（3）, imaging microscope group（4）, circuit board（5）, picture receiver（6）, camera（7）；The acquisition glass（1）With anti-vacation
Light source（2）It is located at acquisition finger opposite direction two side areas respectively；The anti-false light source（2）For the stronger list of erythrocyte absorbability
Color light source, directly by camera during work（7）Acquire vein image；The imaging source（3）For alternative light source, circuit board（5）
The light source of control different-waveband illuminates respectively, and the required image for acquiring lines is under the illumination of different-waveband light source by being imaged microscope group
（4）, it is ultimately imaged in picture receiver（6）On.
2. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that anti-false light source（2）For infrared light supply.
3. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that circuit board（5）Different waves can be controlled
Duan Guangyuan is individually illuminated.
4. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that acquisition glass（1）Be flat glass or
Prism.
5. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that camera（7）Positioned at acquisition glass（1）
Bottom, anti-false light source（2）Opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214138.7A CN108241841A (en) | 2016-12-26 | 2016-12-26 | A kind of anti-vacation refers to palm print collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611214138.7A CN108241841A (en) | 2016-12-26 | 2016-12-26 | A kind of anti-vacation refers to palm print collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108241841A true CN108241841A (en) | 2018-07-03 |
Family
ID=62703883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611214138.7A Pending CN108241841A (en) | 2016-12-26 | 2016-12-26 | A kind of anti-vacation refers to palm print collection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108241841A (en) |
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| US20100045788A1 (en) * | 2008-08-19 | 2010-02-25 | The Hong Kong Polytechnic University | Method and Apparatus for Personal Identification Using Palmprint and Palm Vein |
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| CN101189620A (en) * | 2005-04-27 | 2008-05-28 | 光谱辨识公司 | Multispectral biometric sensors |
| JP2009009403A (en) * | 2007-06-28 | 2009-01-15 | Canon Inc | Biometrics device and living body detection method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20180703 |