CN204856535U - Finger vein discernment image acquisition device of transmission -type - Google Patents
Finger vein discernment image acquisition device of transmission -type Download PDFInfo
- Publication number
- CN204856535U CN204856535U CN201520521314.6U CN201520521314U CN204856535U CN 204856535 U CN204856535 U CN 204856535U CN 201520521314 U CN201520521314 U CN 201520521314U CN 204856535 U CN204856535 U CN 204856535U
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- China
- Prior art keywords
- finger
- module
- transmission
- infrared light
- structure housing
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- Expired - Fee Related
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- 210000003462 vein Anatomy 0.000 title abstract description 7
- 230000005540 biological transmission Effects 0.000 title abstract description 3
- 230000006698 induction Effects 0.000 claims description 10
- 244000060701 Kaempferia pandurata Species 0.000 claims description 3
- 235000016390 Uvaria chamae Nutrition 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims 1
- 230000002463 transducing effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
Landscapes
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model provides a finger vein discernment image acquisition device of transmission -type. It comprises shell structure, infrared light source module, finger response module, five parts of camera module and control circuit module. When the finger support to the shell structure on was placed to the finger, finger response module started infrared light source and camera, shoots finger vein image.
Description
Technical field
The utility model relates to image identification technical field, especially finger vein identification technology field.
Background technology
Finger vena identification is a kind of technology of carrying out identification by gathering finger venous image.In gatherer process, need to be pointed by Infrared irradiation, and by camera collection finger venous image.In finger vena recognition image harvester, infrared light supply is positioned at the side of finger, and with Infrared irradiation finger, and camera is positioned at the opposite side of finger, gather by the finger-image of infrared transmission, such image collecting device is called the finger vena recognition image harvester of transmission-type.
Infrared light supply in existing transmission-type finger vena recognition image harvester, adopts some transparent infrared LED light emitting diodes as light source usually.Such light source, makes the uneven illumination of finger even, and the image of collection usually there will be the hot spot of white.Therefore the quality of image is affected.
In addition, in existing finger vena recognition image harvester, usually the width of the acquisition window of finger is arranged comparatively narrow and small.Such design, on the one hand, makes the image of acquisition window usually be entirely finger-image, decreases finger with the impact of the image of exterior domain on identifying; But then, also the image gathered is made usually not comprise the information of finger edge, to need finger when gathering with registration to put posture height consistent for the posture of putting of finger when also just require that checking, can carry out identification comparison, by verifying with the vein image of same area.And in practical application, finger during checking is put posture and always be there is certain difference more or less, the finger venous image gathered when this just makes to verify usually is difficult to by checking.
In addition, in existing finger vein image acquisition device, there are some defects in the setting position of sensor.These defects make, point difference put in place degree collection posture under to be just taken collection image, thus when making to register and checking time collection image-region position different, affect recognition effect.
Utility model content
In order to overcome the problem of existing transmission-type finger vena recognition image harvester, the utility model proposes a kind of finger vena recognition image harvester of transmission-type.This device can make uniform illumination in the process gathered, and improves the quality gathering image, and in addition, this device makes the image gathered can carry out framing better, thus is more conducive to the identification of finger venous image.
The utility model solves the technical scheme that its technical matters adopts: harvester is made up of structure housing, infrared light supply module, finger induction module, camera module and control circuit module five part.Wherein, the top of structure housing is placed with infrared light supply module and control circuit module, finger induction module is positioned at below the finger bracket in the middle part of structure housing, camera module is positioned at the bottommost of structure housing, and infrared light supply module, finger induction module, camera module are all connected with control circuit module.
More preferably, the infrared LED light source in infrared collecting device of the present utility model adopts vaporific infrared LED, it is characterized in that, in the packaging adhesive material of this LED, with the addition of scattering diluent.After the scattering diluent of packaging adhesive material, there is scattering, infrared light be radiated on finger equably in the Infrared irradiation that infrared diode produces, makes brightness of image even, there will not be hot spot.
More preferably, the width of acquisition window of the present utility model adopts the size wider than finger width; This makes the image gathered intactly can comprise finger position, both sides of the edge, thus makes in image recognition processes, can opponent refer to position preferably, obtain good recognition effect.
More preferably, the utility model, supporting the support place of position between finger root and contact, is respectively provided with a sensor; These two sensors carry transducing signal to same with door; When two sensors send transducing signal simultaneously, the light source of infrared LED lamp just can be unlocked, and the signal triggering photographing instruction just can system export to external world.Such structure, just require root and the finger tip activated sensors simultaneously of finger, can start infrared light supply and photographing instruction, avoid finger when taking pictures and place situation not in place, when making to gather, finger is put put in place all completely at every turn.
The beneficial effects of the utility model are, can intactly present finger width region in the infrared image of collection, and the finger areas gray scale of the image gathered is relatively uniform, there will not be obvious hot spot; The finger areas of the image gathered is relatively fixing, is more conducive to hand vein recognition.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 gives the schematic diagram of structure housing.
Fig. 2 gives the schematic diagram of finger bracket and finger induction module position.
Embodiment
The bottom 101 of structure housing is provided with camera module, for gathering finger venous image; The middle part of structure housing is provided with the support 102 that is placed finger, and this support contains the acquisition window that a width is greater than finger; At the position of support at the position and contact finger tip that support finger root, be respectively provided with a sensor (301 and 302), finger sensing is placed, and these two sensors (301 and 302) together constitute finger induction module; Between the bottom 101 of structure housing and finger bracket 102, be provided with a glass sheet, for preventing finger from stretching into acquisition window by mistake, destroy camera module; The top 103 of structure housing is provided with infrared light supply module, light source direction down, for irradiating finger.Control circuit module comprises: the two-way transducing signal input of power supply, induction module and the AND circuit of access two-way transducing signal.Wherein the output of AND circuit is divided into two-way: a position, road controls the on-off circuit module of infrared light supply module, and another road is the circuit exporting induced signal to the ambient systems be connected with harvester.After the induced signal that ambient systems receives, send the instruction of pictures taken to camera module, complete the shooting, collecting of image.
Claims (5)
1. the finger vena recognition image harvester of a transmission-type, pointed by infrared radiation, thus collection finger venous image, it is characterized in that this device is made up of structure housing, infrared light supply module, finger induction module, camera module and control circuit module five part; Wherein, the top of structure housing is placed with infrared light supply module and control circuit module, finger induction module is positioned at below the finger bracket in the middle part of structure housing, camera module is positioned at the bottommost of structure housing, and infrared light supply module, finger induction module, camera module are all connected with control circuit module.
2. the finger vena recognition image harvester of a kind of transmission-type according to claim 1, is characterized in that described infrared light supply module adopts vaporific infrared LED lamp as infrared light supply.
3. the finger vena recognition image harvester of a kind of transmission-type according to claim 1, is characterized in that the width of width wider than finger of the acquisition window of the support of the placement finger in described structure housing.
4. the finger vena recognition image harvester of a kind of transmission-type according to claim 1, it is characterized in that described finger induction module, comprise two sensors, lay respectively in structure housing the position of placing finger bracket and finger root and finger tip contacts.
5. the finger vena recognition image harvester of a kind of transmission-type according to claim 2, is characterized in that, in the packaging adhesive material of described vaporific LED, with the addition of scattering diluent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521314.6U CN204856535U (en) | 2015-07-19 | 2015-07-19 | Finger vein discernment image acquisition device of transmission -type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520521314.6U CN204856535U (en) | 2015-07-19 | 2015-07-19 | Finger vein discernment image acquisition device of transmission -type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204856535U true CN204856535U (en) | 2015-12-09 |
Family
ID=54747066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520521314.6U Expired - Fee Related CN204856535U (en) | 2015-07-19 | 2015-07-19 | Finger vein discernment image acquisition device of transmission -type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204856535U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108171858A (en) * | 2018-02-13 | 2018-06-15 | 南京东屋电气有限公司 | A kind of automobile door lock with separate type infrared image acquisition device |
| WO2019024320A1 (en) * | 2017-08-01 | 2019-02-07 | 南京东屋信息科技有限公司 | Finger vein image acquisition device and intelligent lock |
| CN110279399A (en) * | 2019-06-25 | 2019-09-27 | 深圳前海蒂脉时代科技控股有限公司 | A kind of minitype portable refers to that vein real time image collection identifies equipment |
| CN112283522A (en) * | 2020-10-28 | 2021-01-29 | 洛阳师范学院 | Thin finger vein recognition equipment |
-
2015
- 2015-07-19 CN CN201520521314.6U patent/CN204856535U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024320A1 (en) * | 2017-08-01 | 2019-02-07 | 南京东屋信息科技有限公司 | Finger vein image acquisition device and intelligent lock |
| CN108171858A (en) * | 2018-02-13 | 2018-06-15 | 南京东屋电气有限公司 | A kind of automobile door lock with separate type infrared image acquisition device |
| CN110279399A (en) * | 2019-06-25 | 2019-09-27 | 深圳前海蒂脉时代科技控股有限公司 | A kind of minitype portable refers to that vein real time image collection identifies equipment |
| CN110279399B (en) * | 2019-06-25 | 2022-02-18 | 深圳前海蒂脉时代科技控股有限公司 | Miniature portable finger vein real-time image acquisition and identification equipment |
| CN112283522A (en) * | 2020-10-28 | 2021-01-29 | 洛阳师范学院 | Thin finger vein recognition equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |