CN207008642U - 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
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- CN207008642U CN207008642U CN201621432856.7U CN201621432856U CN207008642U CN 207008642 U CN207008642 U CN 207008642U CN 201621432856 U CN201621432856 U CN 201621432856U CN 207008642 U CN207008642 U CN 207008642U
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Abstract
It the utility model is related to a kind of anti-vacation and refer to palm print collection system, the system mainly includes collection glass, anti-false light source, imaging source, imaging microscope group, circuit board, picture receiver, camera；When system works, finger or palm are restrained in collection glass collection surface, and lines image, by imaging microscope group, is ultimately imaged in the presence of imaging source and images in camera in the presence of anti-false light source in imaging sensor, vein image；The anti-false light source is infrared band light source, it is placed in above collection glass, because erythrocyte is extremely strong for infrared light absorbability, a width finger or palm medium sized vein train of thought clearly obvious image are obtained eventually through camera when gathering lines, the low false fingerprint membrane material of light transmittance can be shielded；The imaging source is alternative light source, and because the penetration capacity of different-waveband is different, system can gather 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 contrast.
Description
Technical field
The utility model belongs to precision optical instrument technical field, is related to one kind and refers to palm print collection system, more particularly to one
The anti-vacation of kind refers to palm print collection system.
Background technology
With reaching its maturity for precision optical instrument equipment, optical profile type palm fingerprint instrument it is more and more extensive be applied to people
Among daily life, but the appearance of various forms of false fingers and palms lines reduces the security of fingers and palms line collecting device and therefore restricted
Its application and market.Traditional finger palm print instrument is directly made up of optical element group and picture receiver, as long as there is bumps
Uneven lines is restrained can be just imaged on collection glass, and 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 security 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 collections occurs in succession：Some fingers and palms line collection systems
System is that detection function is held in power-up in collection surface, such as " a kind of electric capacity optical fingerprint acquisition instrument " (application number 20150627524.8),
Although such a system can masked segment vacation fingers and palms line film material, copied similar to this conductive classification material of electric silica gel
Into false fingers and palms line film can also pass through detection, however it remains potential safety hazard；Some finger palm print collection systems are one monitorings of collocation
The accessory detection unit of velocity of blood flow, it is such as " living body finger print identification device and method " (application number 201510958255.3), such a
System is i.e. enabled to reach the function, can not also detect, this form of playing tricks of live finger wearing high transmission rate vacation fingerprint film.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of anti-vacation and refers to palm print collection system, existing for differentiating
Various false fingers and palms line situations.
In order to solve the above-mentioned technical problem, anti-vacation of the present utility model, which refers to palm print collection system, mainly includes the collection of fingers and palms line
Glass, anti-false fingers and palms line light source, imaging source, imaging microscope group, circuit board, picture receiver, camera；When system works, finger
Or palm is restrained in collection glass collection surface, lines image, by imaging microscope group, is ultimately imaged in the presence of imaging source
In imaging sensor, vein image images in camera in the presence of anti-false fingers and palms line light source；The anti-false light source is infrared waves
Duan Guangyuan, it is placed in above collection glass, because erythrocyte is extremely strong for infrared light absorbability, finally leads to when gathering lines
Cross camera and obtain a width finger or palm medium sized vein train of thought clearly obvious image, the low false fingerprint membrane material of light transmittance can be shielded
Material；The imaging source is alternative light source, and because the penetration capacity of different-waveband is different, different-waveband light is controlled by circuit board
Source works and gathers image, the fingers and palms lines of several different depths is obtained eventually through imaging sensor, by contrasting different depths
The similarity of degree fingers and palms lines can shield the high false fingerprint membrane material of light transmittance.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation that anti-vacation of the present utility model refers to palm print collection system；
Fig. 2 is the structural representation of the utility model embodiment 1；
Fig. 3 is the structural representation of the utility model embodiment 2；
Fig. 4 is that the anti-false illumination of the utility model gathers example images figure.
Embodiment
Embodiment 1
As shown in Fig. 2 include collection glass (1), anti-false light source using the anti-false fingerprint acquisition instrument of Tthe utility model system
(2), anti-false light source fixing frame (2-1), imaging source (3), imaging lens (4), circuit board (5), picture receiver (6), connection
Part (6-1), base (7), upper casing (8), rear baffle (9), camera (10)；The collection glass includes fingerprint collecting face (1.1), the back of the body
Scape face (1.2), light entrance face (1.3), image output face (1.4)；The anti-false light source (2) is infrared band LED array, fixed
In on anti-false light source fixing frame (2-1)；The anti-false light source fixing frame (2-1) is fixed on upper casing (8), detachably；It is described into
As light source (3) is equally distributed white light, feux rouges, green glow, the LED array of four kinds of wave bands of blue light；The imaging source (3), into
As camera lens (4), circuit board (5), camera (10) are fixed on base (7)；Described image receiver (6) passes through connector (6-1)
It is fixed on imaging lens (4)；The circuit board (5) be USB power supply, be directly connected with computer, and for anti-false light source (2), into
As light source (3), picture receiver (6), camera (10) power supply；The base (7), upper casing (8), rear baffle (9) cooperatively form for
The equipment of one closed stablity；When system works, finger restrains the fingerprint collecting face (1.1) of Collection prism (1), anti-false light source (2)
During illumination, a width finger vena train of thought image is obtained by camera, when imaging source (3) illuminates, prism internal light passes through figure
As output face (1.4), by imaging lens (4), circuit board is ultimately imaged in picture receiver (6), gatherer process extremely short
The anti-false light source (2) of control illuminates respectively with four kinds of wave band light sources in imaging source (3) in time, finally gives 5 width images, leads to
Algorithm is crossed to assert fingerprint characteristic and differentiate that fingerprint is true and false.
Embodiment 2
As shown in figure 3, include collection glass (1), anti-false light source using the anti-false fingerprint acquisition instrument of Tthe utility model system
(2), anti-false light source fixing frame (2.1), imaging source (3), speculum 1 (4-1), speculum 2 (4-2), speculum 3 (4-3), anti-
Penetrate mirror 4 (4-4), imaging lens (4-5), circuit board (5), picture receiver (6), connector (6-1), support (7), shell
(8), camera (9)；The collection glass includes fingerprint collecting face (1.1), light entrance face (1.2), image output face (1.3)；Institute
It is infrared band LED array to state anti-false light source (2), is fixed on anti-false light source fixing frame (2-1)；The anti-false light source fixing frame
(2-1) is fixed on shell (8), detachably；The imaging source (3) is equally distributed white light, feux rouges, green glow, blue light four
The LED array of kind wave band；The 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), camera (9) are fixed on support (7)；Described image receiver (6) passes through company
Fitting (6-1) is fixed on imaging lens (4-5)；The circuit board (5) is powered for external power supply, and direct by USB interface
It is connected with computer, and is anti-false light source (2), imaging source (3), picture receiver (6), camera (9) power supply；The support (7)
It is internal to be fixed on shell (8)；The speculum 1 (4-1), speculum 2 (4-2), speculum 3 (4-3), the work of speculum 4 (4-4)
Be reduce equipment volume；When system works, palm restrains the fingerprint collecting face (1.1) of Collection prism (1), anti-false light source (2)
During illumination, a width finger vena train of thought image is obtained by camera, when imaging source (3) illuminates, prism internal light passes through figure
As output face (1.3), successively by speculum 1 (4-1), speculum 2 (4-2), speculum 3 (4-3), speculum 4 (4-4), into
As camera lens (4-5), it is ultimately imaged the circuit board in picture receiver (6), gatherer process and anti-false light source is controlled in very short time
(2) illuminated respectively with four kinds of wave band light sources in imaging source (3), finally give 5 width images, fingerprint characteristic is assert by algorithm
And differentiate that fingerprint is true and false.
The utility model can differentiate made by high transmission rate material to be suitably applied living body fingerprint acquisition system
False fingerprint film, can also differentiate the false fingerprint film made by low-transmittance material, accomplish real false fingerprint recognition.
The utility model is not limited to above-mentioned embodiment, it should be appreciated that every in the utility model claims skill
Any simple deformation made on the basis of art scheme, all it is intended in the utility model within protection domain.
Claims (5)
1. anti-vacation refers to palm print collection system, it is characterised in that the system mainly includes collection glass (1), anti-false light source (2), imaging
Light source (3), imaging microscope group (4), circuit board (5), picture receiver (6), camera (7)；The collection glass (1) and anti-false light source
(2) respectively positioned at collection finger object two side areas；The anti-false light source (2) is the stronger monochromatic light of erythrocyte absorbability
Source, vein image is directly gathered by camera (7) during work；The imaging source (3) is alternative light source, and circuit board (5) controls
The light source of different-waveband illuminates respectively, it is required collection lines image different-waveband light source illumination under by being imaged microscope group (4),
It is ultimately imaged on picture receiver (6).
2. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that anti-false light source (2) is infrared light supply.
3. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that circuit board (5) can control different ripples
Duan Guangyuan is individually illuminated.
4. anti-vacation according to claim 1 refers to palm print collection system, it is characterised in that collection 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) is positioned at collection glass (1)
Bottom, anti-false light source (2) opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432856.7U CN207008642U (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 |
|---|---|---|---|
| CN201621432856.7U CN207008642U (en) | 2016-12-26 | 2016-12-26 | A kind of anti-vacation refers to palm print collection system |
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| Publication Number | Publication Date |
|---|---|
| CN207008642U true CN207008642U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432856.7U Active CN207008642U (en) | 2016-12-26 | 2016-12-26 | A kind of anti-vacation refers to palm print collection system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241841A (en) * | 2016-12-26 | 2018-07-03 | 长春方圆光电技术有限责任公司 | A kind of anti-vacation refers to palm print collection system |
| CN114627277A (en) * | 2020-12-08 | 2022-06-14 | 北京眼神智能科技有限公司 | Finger vein image acquisition equipment |
-
2016
- 2016-12-26 CN CN201621432856.7U patent/CN207008642U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241841A (en) * | 2016-12-26 | 2018-07-03 | 长春方圆光电技术有限责任公司 | A kind of anti-vacation refers to palm print collection system |
| CN114627277A (en) * | 2020-12-08 | 2022-06-14 | 北京眼神智能科技有限公司 | Finger vein image acquisition equipment |
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