CN104715237A - Finger vein recognition module and device with the same - Google Patents
Finger vein recognition module and device with the same Download PDFInfo
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- CN104715237A CN104715237A CN201510105519.0A CN201510105519A CN104715237A CN 104715237 A CN104715237 A CN 104715237A CN 201510105519 A CN201510105519 A CN 201510105519A CN 104715237 A CN104715237 A CN 104715237A
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- hand vein
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Abstract
The invention relates to the technical field of identity verification, in particular to a finger vein recognition module and a device with the same. The finger vein recognition module comprises a finger carrying table, a light ray transmission assembly, a light ray transmitting device and an image collecting device. The finger carrying table is provided with a groove structure used for containing a finger. A window structure for the light ray to pass through is arranged at the bottom of the groove structure. The light ray transmitting device is arranged on the side wall of the groove structure. The light ray transmission assembly comprises at least one reflector used for changing the light path, and the window structure and the image collecting device are oppositely arranged on the reflector. The invention further provides a device with the finger vein recognition module. The feature of the finger vein is recognized, the identity of a user can be accurately recognized, high safety and high accuracy are achieved, using is convenient, and the manufacturing cost is low.
Description
Technical field
The present invention relates to identity validation technology field, particularly relate to a kind of device referring to hand vein recognition module and there is it.
Background technology
The biometrics identification technologies such as fingerprint, face phase, iris, retina have developed many years.The field utilizing biotechnology to carry out identification at present, using is fingerprint identification technology and iris recognition technology comparatively widely.
Fingerprint technique can be divided into three kinds according to its recognition method: optical finger print identification, semiconductor fingerprint identification and radio-frequency fingerprint identification.The principle of work of three is as follows respectively:
Optical finger print identification: the refraction and the principle of reflection that utilize light, light is from bottom directive prism, and through prism injection, the angle that the light of injection reflects on the rough strain line of finger surface fingerprint and the bright and dark light reflected back will be different.The optical device of CMOS or CCD will collect the pictorial information of different bright-dark degree, just completes the collection of fingerprint.
Semiconductor fingerprint identification: no matter be condenser type or inductance type, its principle is similar, be integrated with on " flat board " of thousands of semiconductor devices at one piece, finger plaster thereon with the another side which constituting electric capacity (inductance), because finger flat is rough and uneven in surface, salient point place contacts dull and stereotyped actual range size with concave point place just different, the capacitive/inductive numerical value formed is also just different, the different numerical value collected around this principle gathers by equipment, also just completes the collection of fingerprint.
Radio-frequency fingerprint identification: utilize biological RF fingerprint recognition technology, launches micro-radiofrequency signal by sensor itself, and the epidermal area penetrating finger removes the lines of detection nexine, obtains best fingerprint image.False proof fingerprint ability is strong, and radio frequency recognition principle only responds to the dermal of people, has fundamentally stopped the problem of artificial fingerprint.
The principle of iris recognition technology is: human eyes structure by sclera, iris and pupil three part form.Wherein, iris is the annular formations between black pupil and white sclera, comprise the minutia of much interlaced spot, filament, crown, striped, crypts etc., and these characteristics determined uniqueness of body iris, can be used for authentication.
Although fingerprint identification technology and iris recognition technology are widely used in the prior art, both there is following defect:
Fingerprint identification module has certain problem in security and accuracy.First, fingerprint is easily replicated, and can use under non-living body state, has occurred fingerprint duplication film and the instrument of a large amount of low cost at present, has had certain potential safety hazard.Secondly, the fingerprint texture of 3%-4% crowd is more shallow, is innately not suitable for fingerprint recognition.3rd, running in the situations such as fold, perspiration and wearing and tearing, fingerprint is easily destroyed and None-identified.
Iris is difficult to copy, and therefore iris recognition technology has higher security.But iris recognition technology is comparatively large by light, eyeball Color influences, as contact lens can change recognition result.In addition, by the restriction of technology and technique, the usual volume of iris recognition product is large, and portability is poor, and expensive.
For the problems referred to above, I need a kind of security and accuracy high, and the lower finger hand vein recognition module of easy to use and manufacturing cost and there is its device.
Summary of the invention
The object of the invention is to propose one and refer to hand vein recognition module, it has higher security and accuracy, and easy to use and have lower manufacturing cost.
Another object of the present invention is to propose a kind ofly have the device referring to hand vein recognition module, and it has higher security and accuracy, and easy to use and have lower manufacturing cost.
For reaching this object, the present invention by the following technical solutions:
One refers to hand vein recognition module, comprising finger mounting table, light transmission assembly, light launcher and image collecting device, wherein, described finger mounting table being provided with the groove structure for placing finger;
The window structure passed through for light is provided with in the bottom of described groove structure;
Described light launcher is arranged on the sidewall of groove structure;
Described light transmission assembly comprises at least one for changing the catoptron of light path, and described window structure and image collecting device are all oppositely arranged in catoptron.
As a kind of preferred version of above-mentioned finger hand vein recognition module, described groove structure is deep-slotted chip breaker.
As a kind of preferred version of above-mentioned finger hand vein recognition module, the luminous end being arranged on the light launcher on groove structure sidewall has the inclination angle to groove structure bottom angled.
As a kind of preferred version of above-mentioned finger hand vein recognition module, described light launcher is infrared LED lamp pearl.
As a kind of preferred version of above-mentioned finger hand vein recognition module, it is the main light source of 850nm infrared light that described light launcher comprises for emission wavelength, and is the secondary light source of 670nm and/or 970nm infrared light for emission wavelength.
As a kind of preferred version of above-mentioned finger hand vein recognition module, the view-finder size of described image collecting device is 2.5*1.8cm, and its focal length is 2cm.
As a kind of preferred version of above-mentioned finger hand vein recognition module, described window structure is provided with optical filter.
As a kind of preferred version of above-mentioned finger hand vein recognition module, also comprise communication module, described communication module is electrically connected with described image collecting device, for the image transmitting that arrived by image acquisition device to external unit.
As a kind of preferred version of above-mentioned finger hand vein recognition module, also comprise Data Data processing unit and storage unit, described image collecting device, storage unit and data processing unit are electrically connected, described image collecting device will collect image information and pass to data processing unit, after described data processing unit receives the image information of image collecting device transmission, feature extraction is carried out to the vein image in image information, and the vein image feature extracted and the vein image feature prestored in the memory unit are contrasted.
Have a device for hand vein recognition module, it comprises the finger hand vein recognition module as described in above any one.
Beneficial effect of the present invention is: the invention provides a kind of device that hand vein recognition module has it that refers to, by the identification to finger vein features, can identify the identity of user accurately, there is higher security and accuracy high, and easy to use and manufacturing cost is lower.
Accompanying drawing explanation
Fig. 1 is the structural representation of the finger hand vein recognition module that the specific embodiment of the invention provides.
1: finger mounting table; 2: light transmission assembly; 3: light launcher; 4: image collecting device;
11: groove structure; 12: window structure.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, present embodiments provide for one and refer to hand vein recognition module, this refers to that hand vein recognition module comprises finger mounting table 1, light transmission assembly 2, light launcher 3 and image collecting device 4, wherein, finger mounting table 1 is provided with the groove structure 11 for placing finger.And the window structure 12 passed through for light is provided with in the bottom of groove structure 11.Light launcher 3 is arranged on the sidewall of groove structure 11.Light transmission assembly comprises at least one for changing the catoptron of light path, and window structure 12 and image collecting device 4 are all oppositely arranged in catoptron.
Finger mounting table 1 adopts groove structure 11, and is arranged on by light launcher 3 on the sidewall of groove structure 11, thus, can reduce the volume referring to hand vein recognition module.Meanwhile, changed the path of light transmission by reflective mirror or reflective mirror group, fully to the structure space referring to hand vein recognition module, can contribute to reducing the volume referring to hand vein recognition module thus.
In order to improve the comfort level referring to that hand vein recognition module uses, and the laminating degree of finger and window structure 12, groove structure 11 is deep-slotted chip breaker.
The luminous end being arranged on the light launcher 3 on groove structure 11 sidewall has the inclination angle to groove structure bottom angled.In this embodiment, form is set by above-mentioned light launcher 3, can further reduces the volume referring to hand vein recognition module, improve the convenience that it uses.
As preferably, light launcher 3 is infrared LED lamp pearl.
It is the main light source of 850nm infrared light that light launcher 3 comprises for emission wavelength, and is the secondary light source of 670nm and/or 970nm infrared light for emission wavelength.The infrared light of 850nm has good imaging effect.But consider because part population exists the situation of sign difference, cause referring to that vein shows unconspicuous problem, adding wavelength is that the infrared light of 670nm and/or 970nm is as secondary light source.Thus, further improve the scope of application referring to hand vein recognition module.
As preferably, the view-finder size of image collecting device 4 is 2.5*1.8cm, and its focal length is 2cm.The volume of such finger hand vein recognition module can further be reduced.
Refer to that hand vein recognition module also comprises communication module, communication module is electrically connected with image collecting device 4, for the image transmitting that collected by image collecting device 4 to external unit.Concrete, communication module is bluetooth module or wifi module.
Refer to that hand vein recognition module also comprises Data Data processing unit and storage unit, image collecting device, storage unit and data processing unit are electrically connected, image collecting device will collect image information and pass to data processing unit, after data processing unit receives the image information of image collecting device 4 transmission, feature extraction is carried out to the vein image in image information, and the vein image feature extracted and the vein image feature prestored in the memory unit are contrasted.
Meanwhile, present embodiment additionally provides a kind of device with hand vein recognition module, wherein, comprises finger hand vein recognition module as previously discussed.The above-described device with hand vein recognition module can be the common equipments such as mouse, keyboard, USB flash disk.As preferably, refer to that hand vein recognition module is arranged on said apparatus by quick inserting fitting, concrete, quick inserting fitting is buckle structure.
In order to be further detailed above-mentioned hand vein recognition module, in present embodiment, additionally provide the concrete course of work of above-mentioned hand vein recognition module:
Image acquisition device irradiates finger through infrared light supply and produces vein image; The vein image collected is passed to data processing unit by image collecting device, the vein image received is carried out recursive subdivision according to area grayscale threshold segmentation algorithm by data processing unit, then add up according to certain weighting principle splitting the target area obtained at every turn, obtain segmentation result image; The dilation and erosion of morphologic band directivity is adopted to recover the actual state of blood vessel; Whether blood vessel general characteristic parameter is compared in employing step by step identical with the finger venous image of registering in advance in the memory unit with the finger venous image of the current collection of the Method compare of more specific characteristic parameter.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. one kind refers to hand vein recognition module, comprise finger mounting table (1), light transmission assembly (2), light launcher (3) and image collecting device (4), it is characterized in that, described finger mounting table (1) being provided with the groove structure (11) for placing finger;
The window structure (12) passed through for light is provided with in the bottom of described groove structure (11);
Described light launcher (3) is arranged on the sidewall of groove structure (11);
Described light transmission assembly (2) comprises at least one for changing the catoptron of light path, and described window structure (12) and image collecting device (4) are all oppositely arranged in catoptron.
2. finger hand vein recognition module according to claim 1, is characterized in that, described groove structure (11) is deep-slotted chip breaker.
3. finger hand vein recognition module according to claim 1, is characterized in that, the luminous end being arranged on the light launcher (3) on groove structure (11) sidewall has the inclination angle to groove structure bottom angled.
4. finger hand vein recognition module according to claim 1, is characterized in that, described light launcher (3) is infrared LED lamp pearl.
5. finger hand vein recognition module according to claim 1, it is characterized in that, it is the main light source of 850nm infrared light that described light launcher (3) comprises for emission wavelength, and is the secondary light source of 670nm and/or 970nm infrared light for emission wavelength.
6. finger hand vein recognition module according to claim 1, is characterized in that, the view-finder size of described image collecting device (4) is 2.5*1.8cm, and its focal length is 2cm.
7. finger hand vein recognition module according to claim 1, is characterized in that, (12) are provided with optical filter to described window structure.
8. finger hand vein recognition module according to claim 1, it is characterized in that, also comprise communication module, described communication module is electrically connected with described image collecting device (4), for the image transmitting that collected by image collecting device (4) to external unit.
9. finger hand vein recognition module according to claim 1, it is characterized in that, also comprise Data Data processing unit and storage unit, described image collecting device, storage unit and data processing unit are electrically connected, described image collecting device will collect image information and pass to data processing unit, after described data processing unit receives the image information that image collecting device (4) sends, feature extraction is carried out to the vein image in image information, and the vein image feature extracted and the vein image feature prestored in the memory unit are contrasted.
10. there is a device for hand vein recognition module, it is characterized in that, comprise as the finger hand vein recognition module in claim 1-9 as described in any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510105519.0A CN104715237A (en) | 2015-03-11 | 2015-03-11 | Finger vein recognition module and device with the same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510105519.0A CN104715237A (en) | 2015-03-11 | 2015-03-11 | Finger vein recognition module and device with the same |
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| CN104715237A true CN104715237A (en) | 2015-06-17 |
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| CN201510105519.0A Pending CN104715237A (en) | 2015-03-11 | 2015-03-11 | Finger vein recognition module and device with the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678259A (en) * | 2016-01-07 | 2016-06-15 | 深圳市亚略特生物识别科技有限公司 | Vein authentication device and electronic system |
| CN106204813A (en) * | 2016-01-15 | 2016-12-07 | 江南 | A kind of ultrathin vein identification device for door lock |
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| CN2789841Y (en) * | 2005-04-20 | 2006-06-21 | 张忠波 | Finger venous image collecting device |
| CN102117404A (en) * | 2010-12-06 | 2011-07-06 | 公安部第一研究所 | Reflective finger vein feature acquisition device and personal identity authentication method thereof |
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| 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 |
| CN203870633U (en) * | 2014-05-08 | 2014-10-08 | 山东大学 | Reflective finger vein recognition living body detection device |
| CN204680031U (en) * | 2015-03-11 | 2015-09-30 | 识益生物科技(北京）有限公司 | A kind of device referring to hand vein recognition module and there is it |
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2015
- 2015-03-11 CN CN201510105519.0A patent/CN104715237A/en active Pending
Patent Citations (7)
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| CN2789841Y (en) * | 2005-04-20 | 2006-06-21 | 张忠波 | Finger venous image collecting device |
| US20120057011A1 (en) * | 2010-09-03 | 2012-03-08 | Shi-Jinn Horng | Finger vein recognition system and method |
| CN102117404A (en) * | 2010-12-06 | 2011-07-06 | 公安部第一研究所 | Reflective finger vein feature acquisition device and personal identity authentication method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678259A (en) * | 2016-01-07 | 2016-06-15 | 深圳市亚略特生物识别科技有限公司 | Vein authentication device and electronic system |
| CN106204813A (en) * | 2016-01-15 | 2016-12-07 | 江南 | A kind of ultrathin vein identification device for door lock |
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Effective date of registration: 20180226 Address after: 100000 Beijing City, Chaoyang District West Road No. 3 Building No. 3 hospital 15 floor room 1809 Applicant after: Gold silver Information Technology Co. Ltd. Address before: 100085 Beijing, Haidian District on the ground floor, No. 26, No. 03, room 0306 Applicant before: Know beneficial biotechnology (Beijing) company limited |
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Application publication date: 20150617 |
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