CN207612339U - A kind of binocular iris image acquiring device - Google Patents
A kind of binocular iris image acquiring device Download PDFInfo
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- CN207612339U CN207612339U CN201721796944.XU CN201721796944U CN207612339U CN 207612339 U CN207612339 U CN 207612339U CN 201721796944 U CN201721796944 U CN 201721796944U CN 207612339 U CN207612339 U CN 207612339U
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Abstract
A kind of binocular iris image acquiring device of the utility model, the two groups of iris capturing modules in left and right are electrically connected with main controller respectively；Two groups of iris capturing module imaging surfaces are placed in parallel with main controller；The illumination light of infrared LED and white light source as iris capturing module；Infrared optical lens is placed in the optical axis front end of every group of iris capturing module；There is positioning device in iris capturing end face；HUB controllers are connect by two groups of camera controllers of USB interface and left and right respectively, and the picture signal that camera acquires is transmitted to HUB controllers；Two groups of camera controllers are connected with corresponding FPC connector respectively, realize row synchronization, the data interaction of field synchronization, master clock, pixel clock, image, I2C signals.Increase white light in collector body interior and placed white light source, makes collector body interior light suitable for the acquisition of iris；The utility model can hold use, can also be placed on holder, as long as forehead is gently sticked on front equipment end face by user, auto-focusing module will rapidly collect clearly iris image.
Description
Technical field
The utility model is a kind of binocular iris image acquiring device, belongs to iris collection device technical field.
Background technology
The technologies such as common fingerprint recognition and face recognition in bio-identification, since long-term manual labor directly results in very
More finger wears can not acquire identification；Dust also can allow face recognition lack scope for their abilities.Iris is externally visible, while again
It is interior tissue, iris recognition is that error rate is minimum in various biological feather recognition methods, can be reached millionth
Precision, but limited by more using since inconvenient and expensive and volume that it is used is larger.In China market
There are more families to be dedicated to the company of iris recognition product, but external product is acted on behalf of mostly by company domestic at present, can voluntarily produce rainbow
Film identifies that only several families of manufacturer of product, technical characterstic are as follows：
1. fixed-focus acquisition method with stopper.This method is a fixing device before allowing picker to stick on camera lens
On, iris position is on the focussing plane of lens imaging, then collects iris image with camera.Such as：
The binocular iris capturing instrument I SCAN 2 of CROSS MACH companies, the outside drawing of the Acquisition Instrument is as shown in Figure 1.This harvester
Camera lens majority be tight shot, and each user is caused sometimes due to own physiological difference and the position difference to recline
The iris position of eyes is not in imaging and focusing plane well, is kept the iris image got not clear enough, is affected
Discrimination.This harvester also has minority to realize automatic focusing function in the way of stepper motor, still, such mode cost
Height, volume are big.
2. manually focusing acquisition method.This method is given user in the previous smaller focusing range of camera lens, allows use
Person watches camera lens attentively and is moved forward and backward within the scope of this, and until device collects a width, more clearly iris image is
Only.The apparent disadvantage of this method is exactly its inadequate hommization of focusing mode, it is desirable that user constantly adjusts the position of oneself
Clearly iris image can be adopted, is likely to take a long time to focus just collect if it is a unfamiliar user
One width clearly image.
It can be seen that the iris image that fixed-focus acquisition method with stopper acquires sometimes is not clear enough, discrimination is influenced.
Even presently, there are stepper motor mode auto-focusing harvester there is also of high cost, bulky problem, limitation
The popularization of iris technology.And artificial focusing mode brings inconvenience to user, this mode acquired image is not
It is enough clear, discrimination can also be influenced.
Invention content
The utility model overcomes the shortcoming of existing acquisition method, proposes a kind of binocular iris image acquiring device, this
Utility model device uses infrared optical lens, auto-focusing module technology, overcomes existing same type iris capturing device and uses
The shortcomings such as inconvenience.
The Image Acquisition camera of the utility model is using VCM（Voice coil motor）Auto-focusing module solves well
It has determined due to fogging image problem caused by each user's own physiological difference and the position difference to recline；Utilize VCM
（Voice coil motor）The advantage of technique itself solves of high cost, bulky problem；The utility model is in collector body interior
Increase white light and placed 2 white light sources, makes collector body interior light suitable for the acquisition of iris；The utility model can be held
It uses, can also be placed on holder, as long as forehead is gently sticked on front equipment end face by user, auto-focusing module will
Rapidly collect clearly iris image.
A kind of binocular iris image acquiring device of the utility model, it is characterised in that：
By main controller, infrared LED light source, left and right two groups of white light sources, left and right two groups of iris capturing modules, infrared optical lens and
Iris capturing device ontology is constituted；
Two groups of the left and right iris capturing module is electrically connected with main controller respectively；The imaging of two groups of iris capturing modules
Face is placed in parallel with main controller；There is the illumination light of two groups of group infrared LEDs and two groups of group white light sources as iris capturing module；Every
Place infrared optical lens in the optical axis front end of group iris capturing module；The two groups of white lights in left and right are placed in the outer peripheral both sides of main controller
Source；There is positioning device in iris capturing end face；
The main controller is made of HUB controllers, the two groups of camera controllers in left and right, two groups of FPC connectors；Described
HUB controllers are connect by two groups of camera controllers of USB interface and left and right respectively, and the picture signal of camera acquisition is transmitted
To HUB controllers；
Two groups of camera controllers are connected with corresponding FPC connector respectively, realize row synchronization, field synchronization, master
The data interaction of clock, pixel clock, image, I2C signals.
The utility model device course of work is as follows：
When user is acquired iris image, infrared LED light source, left and right white light source light work, wherein infrared LED light
Source is the lighting source of entire imaging system, and left and right white light source is comfortable in order to allow collector body interior space to reach human eye
Light, the pupil of such human eye can just show that normal size, iris just can be clearly incident upon on camera, if acquisition
Device body interior space light is too dark, then when acquiring iris, pupil can amplify, and influence the quality of iris image.Before collector
The left and right eye iris of end face can respectively enter the CMOS chip of left and right iris capturing module by light path, on main controller, camera shooting
Head controller configures the CMOS of iris capturing module, includes to information such as acquisition window size, time for exposure, gains
Setting, setting completed, and CMOS chip starts to work and image data is transferred to corresponding camera controller；On main controller
The iris image of left and right iris capturing module is transferred to host computer, host computer area first by HUB controllers by USB2.0 interfaces
Separate right and left eyes iris image and show, while right and left eyes iris image can be handled, extract characteristic point and with
The iris image of registration is compared, iris or iris of both eyes and the registration iris characteristic data kiss of any one of left and right eyes
It closes, you can complete identification, later show recognition result.
Base of principle of human engineering is made full use of, has positioning device in acquisition human eye iris endface, positioning device is close
Forehead end is designed to the radian to match with forehead, in the height for considering nose close to nose one end, Design Orientation device
It will be got out of the way at nose, and the moderate silica gel of material selection hardness of positioning device, in this way, use both can be with volume by user
Head is combined closely, and in contact position, soft feel is comfortable again.
The utility model good effect is：Collector body interior increases white light visible light source, makes in collector ontology
Portion's light suitable for iris acquisition.Infrared transmission mirror is increased inside collector, this mirror is only red to infrared light to have transmission to make
With, UV light penetrates mirror, and direct irradiation is on human eye iris, when user, which acquires iris, sees this mirror, user's perceptual image
It is to look in the mirror, user can use more convenient, faster according to the image of mirror-reflection voluntarily adjusting position, such user
It is prompt.Utility model device can hold use, can prop up and use on the table；It can also be embedded into other equipment and use,
Use occasion diversification.
Description of the drawings
Fig. 1 is utility model binocular iris capturing device structure chart；
Fig. 2 is the main controller block diagram of utility model binocular iris capturing device；
In figure, 1, main controller；2, infrared LED light source；3, left iris capturing module；4, right iris capturing module；5, Zuo Bai
Light source；6, right white light source；7, infrared transmission mirror；8, iris capturing device ontology；9, USB data line.
Specific implementation mode
Embodiment 1
As shown in Fig. 1, the utility model is by main controller 1, infrared LED light source 2, left white light source 5, right white light source 6, Zuo Hong
Film acquires module 3, right iris capturing module 4, infrared optical lens 7, USB data line 9 and iris capturing device ontology 8 and constitutes；It is described
USB data line 9 be fixed on the front end of iris capturing device ontology 8,9 outlet one end of USB data line is iris capturing device ontology 8
Tail end；The main controller 1 is disposed vertically close to 8 tail end of iris capturing device ontology；The left iris capturing module 3 and right rainbow
Film acquisition module 4 is connected by line FPC with main controller 1；Between left iris capturing module 3 and right 4 center of iris capturing module
Away from for 65mm, imaging surface is parallel with main controller 1；There are 4 respectively in the four direction up and down of each iris capturing module
Infrared LED light source 2；Infrared optical lens 7, infrared optical lens 7 and 1 spacing 32mm of main controller are placed in iris capturing module front end,
It is being to place left white light source 5, right white light source 6 in 1 outer peripheral both sides of main controller at 60mm apart from main controller 1；Iris capturing device
There is positioning device in 8 end face of ontology, with 1 spacing 145mm of main controller.
As shown in Fig. 2, the main controller of the utility model by host, HUB controllers, left and right two groups of camera controllers,
Two groups of FPC connectors are constituted；The HUB controllers are connect by two groups of camera controllers of USB interface and left and right respectively, will
The picture signal of camera acquisition is transmitted to HUB controllers；
Wherein, HUB controllers are connected by USB1 interface DM1, DP1 signals and DM, DP signal of the first camera controller
It connects；HUB controllers are connect by USB2 interface DM2, DP2 signals with DM, DP signal of second camera controller；First camera shooting
The synchronous foot of the row of line synchronising signal HS1 and the first FPC connector is connected by head controller；First camera controller is by field synchronization
The field synchronization foot of signal VS1 and the first FPC connector is connected；When first camera controller is by master clock signal MCLK1, pixel
The master clock signal of clock signal PCLK1 and the first FPC connector, pixel clock signal foot are connected；First camera controller
The DATA1 feet of image data DATA1 and the first FPC connector are connected；The I2C-1 of first camera controller and the first FPC connects
The I2C-1 for connecing device is connected；The synchronous foot of the row of line synchronising signal HS2 and the second FPC connector is connected by second camera controller；
The field synchronization foot of field sync signal VS2 and the second FPC connector is connected by second camera controller；Second camera controller
By master clock signal MCLK2, the master clock signal of pixel clock signal PCLK2 and the second FPC connector, pixel clock signal foot
It is connected；The image data DATA2 of second camera controller and the DATA2 feet of the second FPC connector are connected；Second camera control
The I2C-2 of the I2C-2 of device processed and the second FPC connector is connected.
The iris capturing module is mainly by FPC, cmos sensor, optical imaging system and VCM（Voice coil motor）Structure
At.Cmos sensor is connect by FPC with the camera controller on main controller；Camera controller provides for cmos sensor
Master clock MCLK signal, and cmos sensor is configured by I2C, after CMOS is worked normally, pixel clock is believed
Number PCLK, line synchronising signal HS, field sync signal VS and image data DATA are transferred to camera controller.VCM（Voice coil electricity
Machine）Power supply is provided by main controller by FPC, is connect with CMOS by IO, when acquiring iris image, CMOS can be according to image matter
Amount is to VCM（Voice coil motor）It is adjusted, it is made to collect clearly iris image.
Claims (1)
1. a kind of binocular iris image acquiring device, it is characterised in that：
By main controller, infrared LED light source, the two groups of white light sources in left and right, the two groups of iris capturing modules in left and right, infrared optical lens and iris
Collector ontology is constituted；
Two groups of the left and right iris capturing module is electrically connected with main controller respectively；The imaging surface of two groups of iris capturing modules with
Main controller is placed in parallel；There is the illumination light of 2 groups of infrared LEDs and 2 groups of white light sources as iris capturing module；In every group of iris capturing
Place infrared optical lens in the optical axis front end of module；The two groups of white light sources in left and right are placed in the outer peripheral both sides of main controller；Iris capturing
There is positioning device in end face；
The main controller is made of HUB controllers, the two groups of camera controllers in left and right, two groups of FPC connectors；The HUB
Controller is connect by two groups of camera controllers of USB interface and left and right respectively, and the picture signal that camera acquires is transmitted to
HUB controllers；
Two groups of camera controllers are connected with corresponding FPC connector respectively, realize row synchronization, field synchronization, master clock,
The data interaction of pixel clock, image, I2C signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721796944.XU CN207612339U (en) | 2017-12-21 | 2017-12-21 | A kind of binocular iris image acquiring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796944.XU CN207612339U (en) | 2017-12-21 | 2017-12-21 | A kind of binocular iris image acquiring device |
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| CN207612339U true CN207612339U (en) | 2018-07-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109101959A (en) * | 2018-11-02 | 2018-12-28 | 张彦龙 | A kind of iris image extraction element based on liquid lens and VCM |
| CN109697419A (en) * | 2018-12-17 | 2019-04-30 | 北京中科虹霸科技有限公司 | It takes the photograph iris capturing equipment for a kind of pair and takes the photograph synchronous images transmission method with double |
| CN110674682A (en) * | 2019-08-15 | 2020-01-10 | 武汉虹识技术有限公司 | Binocular iris image acquisition device and method |
-
2017
- 2017-12-21 CN CN201721796944.XU patent/CN207612339U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109101959A (en) * | 2018-11-02 | 2018-12-28 | 张彦龙 | A kind of iris image extraction element based on liquid lens and VCM |
| CN109697419A (en) * | 2018-12-17 | 2019-04-30 | 北京中科虹霸科技有限公司 | It takes the photograph iris capturing equipment for a kind of pair and takes the photograph synchronous images transmission method with double |
| CN110674682A (en) * | 2019-08-15 | 2020-01-10 | 武汉虹识技术有限公司 | Binocular iris image acquisition device and method |
| CN110674682B (en) * | 2019-08-15 | 2021-12-14 | 武汉虹识技术有限公司 | Binocular iris image acquisition device and method |
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