CN108073907A - A kind of vein image acquisition device - Google Patents
A kind of vein image acquisition device Download PDFInfo
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- CN108073907A CN108073907A CN201711446292.1A CN201711446292A CN108073907A CN 108073907 A CN108073907 A CN 108073907A CN 201711446292 A CN201711446292 A CN 201711446292A CN 108073907 A CN108073907 A CN 108073907A
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- polarized light
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- vein image
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of vein image acquisition device, main body is provided with the opening for natural light incidence, and the second polarized light piece is arranged on opening；Body side is provided with perforate, is put into for object to be collected；Infrared light supply is arranged in main body, for emitting the object to be collected that Infrared irradiation is put into from perforate；Image-forming assembly is arranged in main body, for receiving the infrared light transmitted through object to be collected, to carry out vein image imaging；First polarized light piece is arranged in main body, and between image-forming assembly and perforate, carries out polarization manipulation for the infrared light to directive image-forming assembly and the first polarised light, the first polarised light plays the polarised light of generation to the rear for natural light through the second polarized light piece；The polarization direction of first polarized light piece and the second polarized light piece is in nonparallel predetermined angle.Solve polishing vein image acquisition equipment can cause user using when cannot see that the technical issues of oneself finger position and side polishing vein image acquisition equipment can cause vein image overexposure.
Description
Technical field
The present invention relates to identity validation technology field more particularly to a kind of vein image acquisition devices.
Background technology
With an urgent demand of the continuous progress and each side of society for quickly and effectively auto authentication, biology
Feature identification technique has obtained development at full speed in recent decades.
As a kind of inherent attribute of people, and with very strong self stability and individual difference, biological characteristic into
For the preferable foundation of auto authentication.Current biometrics identification technology mainly includes：Fingerprint recognition, retina are known
Not, iris recognition, Gait Recognition, hand vein recognition and recognition of face etc..
Vein identification technology is come by gathering finger or palm medium sized vein image, and to vein image progress vivo identification
Achieve the purpose that authentication, there is anti-fake height, In vivo detection, pin-point accuracy, adaptable and easy easy-to-use characteristic.
Existing vein image acquisition equipment can be divided into two class of upper polishing and side polishing from sources illuminating structure.Upper polishing
The light source of vein image acquisition equipment is above finger, in order to avoid influence of the ambient for finger venous image, generally
Opaque cover is set above finger, but so allow for user using when cannot see that oneself finger position, seriously affecting makes
With experience；The light source of side polishing vein image acquisition equipment is simultaneously not provided with opaque cover in finger one or both sides, finger top,
Under extraneous floodlighting, there are problems that vein image overexposure.
The content of the invention
The present invention provides a kind of vein image acquisition devices, and solving polishing vein image acquisition equipment can cause to use
Family using when cannot see that oneself finger position and side polishing vein image acquisition equipment can cause the technology of vein image overexposure
Problem.
The present invention provides a kind of vein image acquisition device, including：Main body, image-forming assembly, infrared light supply, the first polarization
Mating plate and the second polarized light piece；
The main body is provided with the opening for natural light incidence, and second polarized light piece is arranged on the opening；
The body side is provided with perforate, is put into for object to be collected；
The infrared light supply is arranged in the main body, for emit Infrared irradiation from the perforate be put into described in treat
Gather object；
The image-forming assembly is arranged in the main body, for receive transmitted through the object to be collected infrared light, with into
Row vein image is imaged；
First polarized light piece is arranged in the main body, and between the image-forming assembly and the perforate, is used
In carrying out polarization manipulation to the infrared light of image-forming assembly described in directive and the first polarised light, first polarised light is described
Natural light plays the polarised light of generation to the rear through the second polarized light piece；
The polarization direction of first polarized light piece and second polarized light piece is in nonparallel predetermined angle.
Preferably,
The vein image acquisition device further includes the infrared absorption filter being arranged between the image-forming assembly and the perforate
Mating plate.
Preferably,
The infrared fileter is arranged between first polarized light piece and the image-forming assembly.
Preferably,
First polarized light piece is arranged between the infrared fileter and the image-forming assembly.
Preferably,
First polarized light piece is bonded with the infrared fileter.
Preferably,
First polarized light piece is arranged at the image-forming assembly or is suspended on the infrared fileter and the imaging
Between component.
Preferably,
When object to be collected is finger, finger segments line side that the polarization direction of first polarized light piece is arranged to and is put into
To vertical.
Preferably,
The polarized light piece is line polarisation piece or rotatory polarization piece.
Preferably,
The material of the polarized light piece is glass or resin.
Preferably,
The first polarized light piece surface is provided with infrared anti-reflection film, the infrared light supply is sent for promotion infrared
The transmitance of light.
As can be seen from the above technical solutions, the present invention has the following advantages：
After object to be collected is put into main body, natural light is irradiated to by the second polarized light piece on object to be collected, and user can be with
The position of finger is seen through the second polarized light piece；Infrared light supply emits infrared light, infrared transmission object excessively to be collected, and passes through
Into vein image in image-forming assembly after first polarized light piece；Infrared light is without the second polarized light piece, and natural light is first through
Two polarized light pieces are to the rear to become the first polarised light, and the first polarised light is when by the first polarized light piece, because the first polarised light
The polarization direction of piece and the second polarized light piece is in nonparallel predetermined angle, so the first polarised light is filtered by the first polarized light piece
Fall so as to which image-forming assembly cannot be entered, just there is no the problem of vein image overexposure；Therefore the vein image acquisition in the present invention
Device is not required to set opaque cover, solve polishing vein image acquisition equipment can cause user using when cannot see that oneself
The technical issues of finger position, improves user experience, and natural light will not inject image-forming assembly, solves side polishing vein figure
The technical issues of causing vein image overexposure as collecting device.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structure diagram of the first embodiment of vein image acquisition device provided by the invention；
Fig. 2 is the polarization direction of the first polarized light piece and the polarization direction contrast schematic diagram of the second polarized light piece；
Fig. 3 is the polarization direction of the first polarized light piece and the relative direction schematic diagram in finger segments line direction.
Fig. 4 is a kind of light path schematic diagram of the first embodiment of vein image acquisition device provided by the invention；
Fig. 5 is a kind of light path schematic diagram of the second embodiment of vein image acquisition device provided by the invention；
Fig. 6 is a kind of light path schematic diagram of the 3rd embodiment of vein image acquisition device provided by the invention；
Fig. 7 is a kind of light path schematic diagram of the fourth embodiment of vein image acquisition device provided by the invention；
Fig. 8 is a kind of light path schematic diagram of the 5th embodiment of vein image acquisition device provided by the invention；
Fig. 9 is a kind of light path schematic diagram of the sixth embodiment of vein image acquisition device provided by the invention；
Figure 10 is a kind of light path schematic diagram of the 7th embodiment of vein image acquisition device provided by the invention.
Specific embodiment
The present invention provides a kind of vein image acquisition devices, and solving polishing vein image acquisition equipment can cause to use
Family using when cannot see that oneself finger position and side polishing vein image acquisition equipment can cause the technology of vein image overexposure
Problem.
Goal of the invention, feature, advantage to enable the present invention is more apparent and understandable, below in conjunction with the present invention
Attached drawing in embodiment is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that disclosed below
Embodiment be only part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
All other embodiment that those of ordinary skill is obtained without making creative work, belongs to protection of the present invention
Scope.
Referring to Fig. 1, a kind of structure diagram of the first embodiment of vein image acquisition device provided by the invention.
The present invention provides a kind of one embodiment of vein image acquisition device, including：It is main body 7, image-forming assembly 1, red
Outer light source 5, the first polarized light piece 2 and the second polarized light piece 3.
Main body 7 is provided with the opening 8 for natural light incidence, and the second polarized light piece 3 is arranged at opening 8.
The present embodiment is not construed as limiting the shapes and sizes of opening 8.
It is understood that natural light can just make from opening 8 into being irradiated on object 6 to be collected and being reflected into human eye
User using when see from opening 8 position of object 6 to be collected.
Second polarized light piece 3 is arranged at opening 8 so that natural light is polarized when into main body 7 through the second polarized light piece 3
After become the first polarised light.
7 side of main body is provided with perforate, is put into for object 6 to be collected, it is necessary to illustrate, perforate does not embody in Fig. 1.
Gathering object can be with any position that can collect vein image, such as can be finger or palm.
It should be noted that, although 7 side of main body is provided with perforate, natural light can also be penetrated, but when object 6 to be collected is put
Fashionable, the influence of natural light can be ignored.
Infrared light supply 5 is arranged in main body 7, for emitting the object to be collected 6 that Infrared irradiation is put into from perforate.
Infrared light supply 5 can be infrared LED light source.
The present embodiment is not specifically limited the specific location of infrared light supply 5, if can be irradiated to object 6 to be collected and
It is imaged in image-forming assembly 1, such as the oblique upper of object to be collected 6 as shown in Figure 1 can be arranged on, can also be arranged on and treat
Gather the surface of object 6.
Image-forming assembly 1 is arranged in main body 7, for receiving the infrared light transmitted through object 6 to be collected, to carry out vein image
Imaging, as shown in Figure 1, image-forming assembly 1 can be arranged on the bottom in main body 7.
Image-forming assembly 1 includes but not limited to camera lens and sensor.
First polarized light piece 2 is arranged in main body 7, and between image-forming assembly 1 and perforate, for directive imaging group
The infrared light of part 1 and the first polarised light carry out polarization manipulation, and the first polarised light plays production to the rear for natural light through the second polarized light piece
Raw polarised light；
The polarization direction of first polarized light piece 2 and the second polarized light piece 3 is in nonparallel predetermined angle.
In order to which the filter effect for making the first polarised light reaches optimal, predetermined angle can be arranged to 90 degree, can specifically be asked
Refering to Fig. 2, the polarization direction contrast schematic diagram of the polarization direction of the first polarized light piece 2 and the second polarized light piece 3.
It should be noted that the infrared light being irradiated on object 6 to be collected is without the second polarized light piece 3, and natural light is first
It is polarized by the second polarized light piece 3 as the first polarised light, the first polarised light is when reaching the first polarized light piece 2, because first
The polarization direction of 2 and second polarized light piece 3 of polarized light piece is in nonparallel predetermined angle, so the first polarised light is by first
It is filtered during polarized light piece 2 so as to which image-forming assembly 1 cannot be entered, so there is no the problem of vein image overexposure.
Further, vein image acquisition device further includes the infrared fileter being arranged between image-forming assembly 1 and perforate
4·。
In the present embodiment, infrared fileter 4 can be arranged between the first polarized light piece 2 and image-forming assembly 1；Such as Fig. 1
Shown, the first polarized light piece 2 can also be arranged between infrared fileter 4 and image-forming assembly 1.
The effect of infrared fileter 4 is to filtering, such as can be filtered non-from the faint natural light that perforate enters
Infrared light is effectively guaranteed the quality of vein image.
Referring to Fig. 3, the polarization direction of the first polarized light piece 2 and the relative direction schematic diagram in finger segments line direction.
Further, when object 6 to be collected is finger, hand that the polarization direction of the first polarized light piece 2 is arranged to and is put into
Phalangeal configurations direction is vertical.
Inventor has found under study for action, through this embodiment in the vein image that collects of vein image acquisition device lead to
It is often partially bright at finger segments line, it is possible to which that the polarization direction of the first polarized light piece 2 is designed as by the angle being put into according to finger
It is vertical with finger segments line direction, transmitance of the infrared light at finger segments line can be weakened, the brightness that improvement refers to vein image is equal
Even property.
Further, polarized light piece can be line polarisation piece or rotatory polarization piece, the material of polarized light piece can be glass or
Resin.
Further, 2 surface of the first polarized light piece is provided with infrared anti-reflection film, for promoting the transmitance to infrared light.
The embodiment of the present invention is by preventing vein image overexposure, improvement from referring to the brightness uniformity of vein image and promoting the
One polarized light piece 2 improves the image quality of venous collection device vein image under intense light conditions, drops to the transmitance of infrared light
Low algorithm increases for the difficulty of vein image matching identification and refers to ease for use of the intravenous device under intense light conditions.
Because there are many selection, image-forming assembly 1,4 and first polarized light pieces of infrared fileter for the installation position of infrared light supply 5
2 put in order also there are two types of situation, so for the ease of the understanding to technical solution of the present invention, passes through following embodiment
Technical solution of the present invention is specifically described.
Referring to Fig. 4, a kind of light path schematic diagram of the first embodiment of vein image acquisition device provided by the invention.
In the present embodiment, the first polarized light piece 2 is suspended between infrared fileter 4 and image-forming assembly 1, i.e., the first polarization
Mating plate 2 is neither contacted with image-forming assembly 1, is not also contacted with infrared fileter 4；Infrared light supply 5 is arranged on 6 oblique upper of object to be collected
Inner wall on, although infrared light supply shown in Fig. 45 there are two and be distributed in the oblique upper of 6 both sides of object to be collected, can also be only
In the top of 6 one side of object to be collected, infrared light supply 5 is set.
Referring to Fig. 5, a kind of light path schematic diagram of the second embodiment of vein image acquisition device provided by the invention.
In a second embodiment, the first polarized light piece 2 is suspended between infrared fileter 4 and image-forming assembly 1 and is arranged on
At image-forming assembly 1, infrared light supply 5 is arranged on the inner wall of 6 oblique upper of object to be collected, although the infrared light supply 5 shown in Fig. 5 has two
Oblique upper that is a and being distributed in 6 both sides of object to be collected, but can also infrared light supply 5 only be set in the top of 6 one side of object to be collected.
Referring to Fig. 6, a kind of light path schematic diagram of the 3rd embodiment of vein image acquisition device provided by the invention.
In the third embodiment, the first polarized light piece 2 is suspended between infrared fileter 4 and image-forming assembly 1, neither with into
As component 1 contacts, also do not contacted with infrared fileter 4.
Infrared light supply 5 is between 6 and second polarized light piece 3 of object to be collected, such as can be arranged on object 6 to be collected just
Top；For the ease of installation, can infrared light supply 5 be directly arranged on 3 lower surface of the second polarized light piece, because infrared light supply 5
The volume very little compared with the second polarized light piece 3, so user still can see object 6 to be collected through the second polarized light piece 3
Position.
Referring to Fig. 7, a kind of light path schematic diagram of the fourth embodiment of vein image acquisition device provided by the invention.
In the fourth embodiment, the first polarized light piece 2 is suspended between infrared fileter 4 and image-forming assembly 1 and is arranged on
At image-forming assembly 1, infrared light supply 5 is between 6 and second polarized light piece 3 of object to be collected, such as can be arranged on object 6 to be collected
Surface；For the ease of installation, can infrared light supply 5 be directly arranged on 3 lower surface of the second polarized light piece, because infrared light
The volume very little compared with the second polarized light piece 3 of source 5, so user still can see object 6 to be collected through the second polarized light piece 3
Position.
Referring to Fig. 8, a kind of light path schematic diagram of the 5th embodiment of vein image acquisition device provided by the invention.
In the 5th embodiment, infrared fileter 4 is arranged between the first polarized light piece 2 and image-forming assembly 1, specifically can be with
4 and first polarized light piece 2 of infrared fileter is bonded setting.
Infrared light supply 5 is between 6 and second polarized light piece 3 of object to be collected, such as can be arranged on object 6 to be collected just
Top；For the ease of installation, can infrared light supply 5 be directly arranged on 3 lower surface of the second polarized light piece, because infrared light supply 5
The volume very little compared with the second polarized light piece 3, so user still can see object 6 to be collected through the second polarized light piece 3
Position.
Referring to Fig. 9, a kind of light path schematic diagram of the sixth embodiment of vein image acquisition device provided by the invention.
In the 5th embodiment, infrared fileter 4 is arranged between the first polarized light piece 2 and image-forming assembly 1, specifically can be with
4 and first polarized light piece 2 of infrared fileter is bonded setting.
Infrared light supply 5 is arranged on the inner wall of 6 oblique upper of object to be collected, although infrared light supply shown in Fig. 95 there are two and
The oblique upper of 6 both sides of object to be collected is distributed in, but can also infrared light supply 5 only be set in the top of 6 one side of object to be collected.
Referring to Fig. 10, a kind of light path schematic diagram of the 7th embodiment of vein image acquisition device provided by the invention.
It in the seventh embodiment, can also be infrared when infrared light supply 5 is arranged on the inner wall of 6 oblique upper of object to be collected
Light source 5 sets the first polarized light piece 2 close to 6 one side of object to be collected, and other structures and connection relation are identical with sixth embodiment,
It specifically describes and can be found in sixth embodiment.
The above is the detailed description of structure and the connection mode progress to a kind of vein image acquisition device, for ease of reason
Solution, will illustrate a kind of application of vein image acquisition device with a concrete application scene, application examples includes below：
As shown in Figure 1, infrared light supply 5 is arranged on 7 inner wall both sides of main body, after finger is put into main body 7, two infrared light supplies
5 are located at finger oblique upper respectively, and infrared light supply 5 emits infrared light so that infrared transmission object 6 excessively to be collected, and pass through infrared
Into vein image in image-forming assembly 1 after 4 and first polarized light piece 2 of optical filter.
Natural light becomes the first polarised light by the second polarized light piece, on the first polarizing light irradiation to object 6 to be collected and anti-
Be mapped in human eye so that user using when see acquisition object position.
When the first polarised light reaches the first polarized light piece 2, because the first polarized light piece 2 and the second polarized light piece 3 is inclined
Direction shake in nonparallel predetermined angle, so natural light during the first polarized light piece 2 by being filtered so as to cannot enter
Image-forming assembly 1, so there is no the problem of vein image overexposure.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to before
Embodiment is stated the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or carry out equivalent substitution to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is not made to depart from the spirit and scope of various embodiments of the present invention technical solution.
Claims (10)
1. a kind of vein image acquisition device, which is characterized in that including：Main body, image-forming assembly, infrared light supply, the first polarised light
Piece and the second polarized light piece；
The main body is provided with the opening for natural light incidence, and second polarized light piece is arranged on the opening；
The body side is provided with perforate, is put into for object to be collected；
The infrared light supply is arranged in the main body, is put into for emitting Infrared irradiation from the perforate described to be collected
Object；
The image-forming assembly is arranged in the main body, quiet to carry out for receiving the infrared light transmitted through the object to be collected
Arteries and veins image is imaged；
First polarized light piece is arranged in the main body, and between the image-forming assembly and the perforate, for pair
The infrared light of image-forming assembly described in directive and the first polarised light carry out polarization manipulation, and first polarised light is the nature
Light plays the polarised light of generation to the rear through the second polarized light piece；
The polarization direction of first polarized light piece and second polarized light piece is in nonparallel predetermined angle.
2. vein image acquisition device according to claim 1, which is characterized in that further include and be arranged on the image-forming assembly
Infrared fileter between the perforate.
3. vein image acquisition device according to claim 2, which is characterized in that the infrared fileter is arranged on described
Between first polarized light piece and the image-forming assembly.
4. vein image acquisition device according to claim 2, which is characterized in that first polarized light piece is arranged on institute
It states between infrared fileter and the image-forming assembly.
5. vein image acquisition device according to claim 3, which is characterized in that first polarized light piece with it is described red
Outer optical filter fitting.
6. vein image acquisition device according to claim 4, which is characterized in that first polarized light piece is arranged on institute
It states at image-forming assembly or is suspended between the infrared fileter and the image-forming assembly.
7. vein image acquisition device according to claim 1, which is characterized in that described when object to be collected is finger
The polarization direction of first polarized light piece is arranged to vertical with the finger segments line direction being put into.
8. vein image acquisition device as claimed in any of claims 1 to 7, which is characterized in that the polarised light
Piece is line polarisation piece or rotatory polarization piece.
9. vein image acquisition device as claimed in any of claims 1 to 7, which is characterized in that the polarised light
The material of piece is glass or resin.
10. vein image acquisition device as claimed in any of claims 1 to 7, which is characterized in that described first partially
The mating plate surface that shakes is provided with infrared anti-reflection film, for promoting the transmitance of the infrared light sent to the infrared light supply.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446292.1A CN108073907A (en) | 2017-12-27 | 2017-12-27 | A kind of vein image acquisition device |
| PCT/CN2018/113645 WO2019128463A1 (en) | 2017-12-27 | 2018-11-02 | Venous image acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446292.1A CN108073907A (en) | 2017-12-27 | 2017-12-27 | A kind of vein image acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108073907A true CN108073907A (en) | 2018-05-25 |
Family
ID=62155329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711446292.1A Pending CN108073907A (en) | 2017-12-27 | 2017-12-27 | A kind of vein image acquisition device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108073907A (en) |
| WO (1) | WO2019128463A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109376668A (en) * | 2018-10-30 | 2019-02-22 | Oppo广东移动通信有限公司 | Fingerprint module, electronic device and fingerprint collection method |
| WO2019128463A1 (en) * | 2017-12-27 | 2019-07-04 | 广州广电运通金融电子股份有限公司 | Venous image acquisition device |
| CN114821664A (en) * | 2022-05-24 | 2022-07-29 | 青岛奥美克生物信息科技有限公司 | Vein image acquisition equipment and biological recognition device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357065A (en) * | 2007-07-30 | 2009-02-04 | 索尼株式会社 | Biometric Image Pickup Device |
| CN103584836A (en) * | 2013-10-25 | 2014-02-19 | 浙江大学 | Real-time vein positioning and displaying device and method |
| CN103679153A (en) * | 2013-12-16 | 2014-03-26 | 中国民航大学 | Finger multi-modal biometric characteristic polarization imaging system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101008982A (en) * | 2006-01-27 | 2007-08-01 | 侯雨石 | Method and device for capturing iris without interference of spectacles |
| CN103412362A (en) * | 2013-08-06 | 2013-11-27 | 西北工业大学 | Method for manufacturing near-infrared polarization invisible image elements |
| CN106845451A (en) * | 2017-02-23 | 2017-06-13 | 上海理鑫光学科技有限公司 | A kind of optical system of fingerprint imaging |
| CN107124564A (en) * | 2017-06-05 | 2017-09-01 | 信利光电股份有限公司 | A kind of ir imaging system and its image capture method |
| CN108073907A (en) * | 2017-12-27 | 2018-05-25 | 广州广电运通金融电子股份有限公司 | A kind of vein image acquisition device |
-
2017
- 2017-12-27 CN CN201711446292.1A patent/CN108073907A/en active Pending
-
2018
- 2018-11-02 WO PCT/CN2018/113645 patent/WO2019128463A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357065A (en) * | 2007-07-30 | 2009-02-04 | 索尼株式会社 | Biometric Image Pickup Device |
| CN103584836A (en) * | 2013-10-25 | 2014-02-19 | 浙江大学 | Real-time vein positioning and displaying device and method |
| CN103679153A (en) * | 2013-12-16 | 2014-03-26 | 中国民航大学 | Finger multi-modal biometric characteristic polarization imaging system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128463A1 (en) * | 2017-12-27 | 2019-07-04 | 广州广电运通金融电子股份有限公司 | Venous image acquisition device |
| CN109376668A (en) * | 2018-10-30 | 2019-02-22 | Oppo广东移动通信有限公司 | Fingerprint module, electronic device and fingerprint collection method |
| CN109376668B (en) * | 2018-10-30 | 2024-02-27 | Oppo广东移动通信有限公司 | Fingerprint module, electronic equipment and fingerprint acquisition method |
| CN114821664A (en) * | 2022-05-24 | 2022-07-29 | 青岛奥美克生物信息科技有限公司 | Vein image acquisition equipment and biological recognition device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019128463A1 (en) | 2019-07-04 |
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