CN201088587Y - Image collection device of finger vein authentication system - Google Patents
Image collection device of finger vein authentication system Download PDFInfo
- Publication number
- CN201088587Y CN201088587Y CNU2007201881204U CN200720188120U CN201088587Y CN 201088587 Y CN201088587 Y CN 201088587Y CN U2007201881204 U CNU2007201881204 U CN U2007201881204U CN 200720188120 U CN200720188120 U CN 200720188120U CN 201088587 Y CN201088587 Y CN 201088587Y
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- infrared
- finger
- infrared camera
- casing
- locating slot
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Abstract
The utility model relates to an image acquisition device of a finger vein system, which comprises a casing, a near infrared light-emitting diode, an infrared camera and a light source control circuit in the casing; wherein, finger holes are arranged in the center of the casing and fingertip locating slots are disposed at the positioned corresponding to the finger holes in the casing for fixing fingers; a set of near infrared light-emitting diode is positioned above a gap between the finger holes and the fingertip locating slots for emission of an infrared-ray for transmitting fingers; an infrared filter is arranged below the gap between the finger holes and the fingertip locating slot for filtering visible light. The infrared camera is positioned below the infrared filter and a signal output line of the infrared camera is connected with a digital image acquisition card on a PC machine outside. The utility model can reduce the cost of the finger vein image acquisition device, simplify the inner structure, shorten the device volume, and moreover, promote the quality and stability of the collected image samples, so as to reduce the burden of back-end image processing.
Description
Technical field
This utility model belongs to the physical characteristics collecting part in the human-body biological field of authentication, is specifically related to the collection of finger venous image.
Background technology
Biological identification technology commonly used in the world at present has fingerprint, palmmprint, iris, appearance, sound, signature, gait and infrared temperature figure spectrum discrimination etc.In numerous identifying schemes, fingerprint recognition is present most convenient, reliable, non-infringement and technical relative sophisticated biological identification technology.Yet fingerprint recognition also has the deficiency of himself: some people or colony's fingerprint characteristic seldom do not reach the requirement of filing; The part user can't use finger print identifying owing to finger wear; Can stay user's finger mark when using fingerprint on fingerprint capturer, there is the possibility that is replicated utilization in these fingerprint traces at every turn.At above many defectives, a kind of more advanced bio-identification way one finger vein identification is suggested.
Finger vein identification technology is the new bio recognition technology that latest development is got up, and originates from general blood vessel lines identification technique, and the vein blood vessel lines by induction apparatus uses noctovisor scan to point forms the binary system image, and the computing comparison is confirmed fast.Foreign study shows, the pseudo-rate and refuse sincere two important indicators and all be better than the identification of fingerprint technology received of finger vena identification, and this technology awkward situation that can avoid fingerprint identification system to have 3% adult normally to use.Simultaneously,, can't duplicate, and depend on live body and exist, have higher antifalsification because the feature that this technology adopts is present in inside of human body; Owing to rely on entity contact, thereby can not cause puppet to be emitted or copy incident owing to residual identification vestige.The finger vena identification mode is not subjected to the influence of environment and grunge pollution, even the dorsal surfaces of fingers epidermis forms new cicatrix, and still can be correctly and identification finger venous image fast.
Finger vena base of recognition and key are the collections of finger venous image.At existing harvester internal circuit configuration complexity, the higher problem of cost of manufacture, this utility model can effectively reduce the cost of finger vein image acquisition equipment, simplify internal structure, the reduction equipment volume, improve the quality and the stability of images acquired sample simultaneously, to alleviate the burden of rear end Flame Image Process link.
Summary of the invention
The objective of the invention is to deficiency at the prior art existence, a kind of image collecting device of finger vena identification system is proposed, the front-end module that belongs to finger vena identification system, be intended to reduce the cost of finger vein image acquisition equipment, simplify internal structure, the reduction equipment volume improves the quality and the stability of images acquired sample, simultaneously to alleviate the burden of rear end Flame Image Process link.
The technical scheme that this utility model is taked is:
A kind of image collecting device of finger vena identification system, it includes housing and is installed in the intravital near-infrared luminous diode of shell, infrared fileter, infrared camera and control circuit for light source.Have finger hole at the housing middle part, the position relative with finger hole is provided with the finger tip locating slot in housing, and finger is fixed by finger hole and finger tip locating slot; Directly between finger hole and the finger tip locating slot, one group of near-infrared luminous diode is installed, is used for the infrared-ray of transmission finger; The position is provided with infrared fileter under between finger hole and the finger tip locating slot, be used for the filtering visible light, under infrared fileter, be provided with infrared camera, the output line of infrared camera links to each other with digital image acquisition card on the outer PC, and the housing inner top is fixed with control circuit for light source.
In this device, it is the common infrared transmitting tube of 850 or 930 nanometers that near-infrared luminous diode adopts peak value, and the filter range of infrared fileter is in 780 to 2000 nanometers, and infrared camera is output as the CCIR standard.
This utility model uses succinctly, convenience, can guarantee the stability of sample collection effectively to finger locating; Device volume is small and exquisite, and the internal structure simplicity of design is convenient to extensive manufacturing, assembling; That uses is conventional device, and does not have too much light channel structure and control circuit, effectively reduces the cost.
Description of drawings
Fig. 1, this utility model structural representation.
Among the figure: 1. infrared camera, 2. infrared fileter, 3. near-infrared luminous diode, single 8,4. finger hole, 5. finger tip locating slot, 6. control circuit for light source, 7. infrared camera output, 8, housing
The specific embodiment
Referring to Fig. 1, this image collecting device includes housing 8 and the near-infrared luminous diode 3, infrared fileter 2, infrared camera 1 and the control circuit for light source 6 that are installed in the housing 8.Have finger hole 4 at housing 8 middle parts, position relative with finger hole 4 in housing 8 is provided with finger tip locating slot 5, and it is fixing by finger tip locating slot 5 that finger puts in finger hole 4 during detection.Directly between finger hole 4 and the finger tip locating slot 5, one group of near-infrared luminous diode 3 (single 8) is installed, is used for the infrared-ray of transmission finger.The position is provided with infrared fileter 2 under between finger hole 4 and the finger tip locating slot 5, is used for the filtering visible light.Be provided with infrared camera 1 under infrared fileter 2, the output line 7 of infrared camera 1 links to each other with digital image acquisition card on the outer PC, and housing 1 inner top is fixed with control circuit for light source 6.
It is the common infrared transmitting tube of 850 or 930 nanometers that near-infrared luminous diode adopts peak value, and the filter range of infrared fileter is in 780 to 2000 nanometers, and infrared camera is output as the CCIR standard.
Claims (4)
1. the image collecting device of a finger vena identification system is characterized in that: it includes housing and is installed in the intravital near-infrared luminous diode of shell, infrared fileter, infrared camera and control circuit for light source; Have finger hole at the housing middle part, the position relative with finger hole is provided with the finger tip locating slot in housing; Directly between finger hole and the finger tip locating slot, near-infrared luminous diode is installed, the position is provided with infrared fileter under between finger hole and the finger tip locating slot, under infrared fileter, be provided with infrared camera, the output line of infrared camera links to each other with digital image acquisition card on the outer PC, and the housing inner top is fixed with control circuit for light source.
2. according to the image collecting device of claims 1 described a kind of finger vena identification system, it is characterized in that: it is the common infrared transmitting tube of 850 or 930 nanometers that near-infrared luminous diode adopts peak value.
3. according to the image collecting device of claims 1 or 2 described a kind of finger vena identification systems, it is characterized in that: the filter range of infrared fileter is in 780 to 2000 nanometers.
4. according to the image collecting device of claims 3 described a kind of finger vena identification systems, it is characterized in that: infrared camera is output as the CCIR standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201881204U CN201088587Y (en) | 2007-10-30 | 2007-10-30 | Image collection device of finger vein authentication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201881204U CN201088587Y (en) | 2007-10-30 | 2007-10-30 | Image collection device of finger vein authentication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201088587Y true CN201088587Y (en) | 2008-07-23 |
Family
ID=39860342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201881204U Expired - Fee Related CN201088587Y (en) | 2007-10-30 | 2007-10-30 | Image collection device of finger vein authentication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201088587Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609691A (en) * | 2012-02-13 | 2012-07-25 | 深圳市中控生物识别技术有限公司 | Finger vein collecting device |
| CN105678223A (en) * | 2015-12-30 | 2016-06-15 | 华桦 | Movable type finger tip positioning finger vein recognizer |
| CN105701454A (en) * | 2016-01-06 | 2016-06-22 | 深圳市亚略特生物识别科技有限公司 | Vein identity authentication device and electronic system |
-
2007
- 2007-10-30 CN CNU2007201881204U patent/CN201088587Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609691A (en) * | 2012-02-13 | 2012-07-25 | 深圳市中控生物识别技术有限公司 | Finger vein collecting device |
| CN105678223A (en) * | 2015-12-30 | 2016-06-15 | 华桦 | Movable type finger tip positioning finger vein recognizer |
| CN105678223B (en) * | 2015-12-30 | 2019-04-12 | 华桦 | The finger hand vein recognition device of mobile finger tip positioning |
| CN105701454A (en) * | 2016-01-06 | 2016-06-22 | 深圳市亚略特生物识别科技有限公司 | Vein identity authentication device and electronic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20091130 |