CN1932839A - Automatic tilting optical device for iris identification system and automatic tilting method thereof - Google Patents
Automatic tilting optical device for iris identification system and automatic tilting method thereof Download PDFInfo
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- CN1932839A CN1932839A CN 200510029712 CN200510029712A CN1932839A CN 1932839 A CN1932839 A CN 1932839A CN 200510029712 CN200510029712 CN 200510029712 CN 200510029712 A CN200510029712 A CN 200510029712A CN 1932839 A CN1932839 A CN 1932839A
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Abstract
The automatic lean optics equipment and automatic lean method uses for iris identify system. Judge that whether user enters into the identify range. If they entered, open some LED on the top of luminescence part to ultraviolet radiation sensor in turn. The receiver of ultraviolet radiation sensor explores the exploration range of the said LED, the optics subassembly will automatic lean. After that, get the iris picture of user. It uses ultraviolet radiation sensor to locate the position of user, while the optics subassembly automatic leans to identify iris.
Description
[technical field]
The present invention is the wing drop optical devices of relevant iris authentication system and the invention of wing drop method thereof, especially in the time of within the user enters identification range, utilize UV sensor, after user's position is grasped, make the optical module run-off the straight automatically.
[background technology]
As everyone knows, for the consideration of aspects such as security personnel, strick precaution, identity validation, many security systems such as contact recognition system, contactless recognition system, card recognizing system and fingerprint recognition system, iris authentication system have been developed at present.In some special place of turnover or when browsing some special information, at first bearer identity is tested by said system, check errorlessly can to enter or file is carried out associative operation allowing afterwards.
In above-mentioned security identification system, iris authentication system comes compared with fingerprint recognition system, has that discrimination is higher, an also advantage more accurately of recognition effect.The iris authentication system principle of work is as follows: in the iris image that uses video recorder to take, utilize image processing techniques, the AD HOC of iris is carried out contrasting with the iris data that registers on the books in advance, thereby personal identification being confirmed after the digitized processing.
The sketch map that common iris authentication system constitutes during Fig. 1.Below with reference to shown in Figure 1, the workflow of iris authentication system is illustrated.
The user enters after the identification range of iris authentication system, range determination sensor 109 will be to measuring with user's distance, control device 105 is received by driving the range determination value that is obtained above 107 pairs afterwards, and whether above-mentioned range determination value is judged within identification range.
If the user enters within the identification range, send control signal with driving 107, extract the preliminary work of iris image.Drive 107 and send enabling signal to external indicator 108, the notice custom system starts, the user is by optical window 102 then, the optical axis of direct-view camera 103, this moment, cold mirror 102 will cover visible light, only stay ultraviolet ray and pass through, and will need in addition mark of position that iris stops, thereby whether the user is confirmed the optical axis of eye alignment camera 103.
In addition, opertaing device 105 receives the distance values of determination sensor 109 to the user, utilizes this range determination value to calculate the focal length and the focus numerical value of camera 103, thereby realizes amplifying/dwindling and the operation of focusing.Opertaing device 105 is taken iris by driving according to range determination numerical value afterwards.The iris image that photographs requires to carry out signal Processing according to the iris image analysis in image capured keystroke 104; Treated iris image information is input among the iris symbol database DB110; According to the iris information that is write down, in above-mentioned opertaing device 105, carry out iris recognition then, to judge whether the user is legal.
In above-mentioned iris authentication system, can how correctly to carry out the performance that iris recognition will determine this system in the time how long.
But because each user's height is all inequality, in order to carry out iris recognition, user's needs carry out up-down adjustment to the iris authentication system of said structure in person, are located in the eye.Therefore the user needs direct regulating system when the common iris authentication system of operation, makes on it to have a down dip, and step is more loaded down with trivial details; In identifying, also the too much time can be expended correspondingly simultaneously.
[summary of the invention]
The present invention is the wing drop optical devices of relevant iris authentication system and the invention of wing drop method thereof, its purpose is as follows: after in the user enters identification range, utilize UV sensor that user's position is carried out after me, the iris recognition operation is carried out in the automatic run-off the straight of optical module.
The present invention is the wing drop optical devices of relevant iris authentication system and the invention of wing drop method thereof, and assembly comprises:
Optical module, UV sensor illuminating part that optical window, cold mirror, camera constitute (are positioned at the front of above-mentioned optical module, can send ultraviolet light source), the UV sensor acceptance division (is positioned at the front of above-mentioned optical module, the ultraviolet light source that reception is sent from above-mentioned ultraviolet detecting means), wing drop drive division (according to the result that above-mentioned UV sensor acceptance division is received, make above-mentioned optical module wing drop).
What deserves to be mentioned is that the light source of above-mentioned UV sensor illuminating part is made of a plurality of LED.
The present invention is the wing drop optical devices of relevant iris authentication system and the invention of wing drop method thereof, and to achieve these goals, workflow of the present invention comprises following several stages, has constituted another feature of the present invention:
Whether the user has been entered the stage that identification range is judged;
If above-mentioned user has entered identification range, a plurality of LED of UV sensor illuminating part will be lighted successively;
The UV sensor acceptance division is surveyed the investigative range of above-mentioned each led light source of lighting, makes the optical module wing drop;
After the above-mentioned optical module wing drop, obtain user's iris image, discern.
The UV sensor acceptance division is surveyed the investigative range of above-mentioned each led light source of lighting, make the optical module wing drop in this stage, according to the number of the UV sensor that detects the light that top a plurality of LED sends, user's position is held.This is an another feature of the present invention.
Utilize iris authentication system of the present invention, if the user enters identification range, utilize UV sensor to grasp after user's the position, the optical module wing drop is finished identifying operation.
As mentioned above, the wing drop optical devices in the iris authentication system among the present invention and the groundwork flow process of wing drop method thereof are as follows: after the user enters identification range, after by UV sensor user's position being grasped, the optical module wing drop, thus carry out identifying operation.
[description of drawings]
Fig. 1 is the sketch map that common iris authentication system constitutes.
Fig. 2 is a structure sketch map of using the wing drop optical devices of iris authentication system of the present invention.
Fig. 3 is a wing drop method precedence diagram of using iris authentication system of the present invention.
Fig. 4 is a wing drop operation chart of using iris authentication system of the present invention.
[embodiment]
Below in conjunction with accompanying drawing typical operation of the present invention is elaborated.
Fig. 2 is a wing drop structure of optical means sketch map of using iris authentication system of the present invention.As shown in the figure, the wing drop optical devices of using iris authentication system of the present invention comprise optical window, cold mirror, the optical module 201 that camera is formed, the UV sensor illuminating part (is positioned at the front of above-mentioned optical module 201, can send ultraviolet light source), UV sensor acceptance division 204 (is positioned at the front of above-mentioned optical module 201, the ultraviolet light source that reception is sent from above-mentioned UV sensor illuminating part 203), wing drop drive division 202 (according to the result that above-mentioned UV sensor acceptance division 204 is received, make above-mentioned optical module 201 wing drops).
Above-mentioned UV sensor illuminating part 203 is made of three ultraviolet LED (the 1st, the 2nd and the 3rd), is respectively 203a, 203b and 203c, and this moment, the LED quantity of above-mentioned UV sensor illuminating part 203 can suitably be adjusted as required.
In addition, above-mentioned each ultraviolet LED has detection angle-1,2,3, after lighting successively, and sensed arriving.
Be more detailed explanation below.After the 1st ultraviolet LED (203a) opened, with detection angle 1 irradiation user's face, the light of reflection was by 204 perception of above-mentioned ultraviolet acceptance division; Above-mentioned wing drop drive division 202 will be according to user's facial positions wing drop.
Below with reference to Fig. 2, the typical operation of the wing drop method of the iris authentication system among relevant the present invention is illustrated.
Fig. 3 is the process flow diagram of the wing drop method of the iris authentication system among relevant the present invention, and Fig. 4 is the synoptic diagram of the wing drop operation of the iris authentication system in the invention.
At first whether the user is entered identification range and carry out determining step S301.Just as shown in Figure 4, under iris authentication system is in holding state, if there is the user to enter, above-mentioned UV sensor acceptance division 204 just can't receive the light source that above-mentioned UV sensor illuminating part 203 is sent, so just can judge that the user is still outside the iris authentication system identification range.
In addition, the step S302 in the identification range if above-mentioned user enters, the luminous successively step S303 of a plurality of LED of luminescence-utraviolet portion.
Shown in Fig. 4 (b), if the user enters within the identification range of UV sensor illuminating part 203,1st, the light source that is sent among 2,3 ultraviolet LED-203a, 203b, the 203c is 204 perception of UV sensor acceptance division, so judgement thinks that the user has entered identification range.
At this moment, the 1st, 2,3 ultraviolet LED-203a, 203b, 203c light successively.
Then the UV sensor acceptance division carries out perception to the investigative range of above-mentioned led light source, optical module wing drop step S304.
In addition, above-mentioned each ultraviolet LED has detection angle (1,2,3), lights up as the perception of UV sensor acceptance division institute successively.Be further explained in detail in other words if do, after the 1st ultraviolet LED203a opened, at search angle (1) irradiation user's face, the light of reflection was 204 perception of UV sensor acceptance division.
At this moment, according to the position height of user's face, each ultraviolet LED-203a, 203b of above-mentioned UV sensor acceptance division institute perception, the light of 203c are also different.
In other words, as shown in Figure 4, for the higher user of face, above-mentioned the 1st, 2,3 ultraviolet LED-203a, 203b, 203c light successively, and the light that is reflected can all obtain corresponding signal in above-mentioned ultraviolet acceptance division 204.
In addition, as shown in Figure 4, for the lower user of face, above-mentioned the 1st, 2,3 ultraviolet LED-203a, 203b, 203c light successively, and the light of above-mentioned the 1st ultraviolet LED203a does not shine user's face, just can not produce reflection ray.That is to say that the light that the acceptance division 204 of above-mentioned UV sensor is sent in can't perception the 1st ultraviolet LED203a can only be experienced the reflection ray of the above-mentioned the 2nd and the 3rd ultraviolet LED-203b and 203c, therefore just can't know the position of user's face.
Therefore, according to the result's of 204 perception of above-mentioned UV sensor acceptance division difference, above-mentioned optical module 201 tilts automatically, and is consistent with user's facial positions to realize.
After the above-mentioned in addition optical module wing drop, the iris image that obtains the user carries out identification step S305.
The detailed description that realizes the iris recognition operation is identical with commonsense method, repeats no more here.
Said method is mentioned, if the user enters identification range, utilizes after UV sensor holds user's position, and the optical module wing drop, thus carry out the optical identification operation.
Top reference diagram has been made brief description to operational instances of the present invention, but only only limits to typical operation, has this field relevant professional knowledge person and all can improve operation of the present invention on this basis, finds out other method of operating.Therefore real technical protection scope of the present invention should be delimited according to the technological thought described in the special permission request scope of back.
Claims (5)
1, a kind of wing drop optical devices of iris authentication system is characterized in that, comprising:
By optical window, the optical module that cold mirror and camera are formed;
Be positioned at the front of above-mentioned optical module, can send the UV sensor illuminating part of ultraviolet light source;
Be positioned at the front of above-mentioned optical module, can receive the UV sensor acceptance division of the light that above-mentioned UV sensor illuminating part sends;
According to the result of above-mentioned UV sensor institute perception, make the wing drop drive division of above-mentioned optical module wing drop.
2, as the wing drop optical devices of claim item 1 described iris authentication system, it is characterized in that,
The light source of above-mentioned UV sensor illuminating part is made of a plurality of LED.
3, as the wing drop optical devices of claim item 1 described iris authentication system, it is characterized in that,
A plurality of led light sources of above-mentioned UV sensor illuminating part have certain detection angle respectively.
4, a kind of wing drop method of iris authentication system is characterized in that, comprises following step:
Whether first step enters identification range to the user and judges;
Second step, if the user has entered identification range, a plurality of LED of UV sensor illuminating part light successively;
Third step, the investigative range of the above-mentioned led light source of lighting of UV sensor acceptance division perception makes the optical module run-off the straight automatically;
The 4th step, after the above-mentioned optical module wing drop, the iris image that obtains the user is discerned.
5, the wing drop method of the iris authentication system described in claim item 4 is characterized in that:
The investigative range of the above-mentioned led light source of lighting of UV sensor acceptance division perception in the above-mentioned third step makes also to comprise the step of user's position being held according to the perceived number of light sources of a plurality of led light sources in the optical module run-off the straight automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029712 CN1932839A (en) | 2005-09-16 | 2005-09-16 | Automatic tilting optical device for iris identification system and automatic tilting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029712 CN1932839A (en) | 2005-09-16 | 2005-09-16 | Automatic tilting optical device for iris identification system and automatic tilting method thereof |
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| CN1932839A true CN1932839A (en) | 2007-03-21 |
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| CN 200510029712 Pending CN1932839A (en) | 2005-09-16 | 2005-09-16 | Automatic tilting optical device for iris identification system and automatic tilting method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932051A (en) * | 2012-11-05 | 2013-02-13 | 北京半导体照明科技促进中心 | Method and device for signal transmission |
| CN106339671A (en) * | 2016-08-16 | 2017-01-18 | 南京安穗智能科技有限公司 | Iris recognition device based on mobile image acquisition equipment |
-
2005
- 2005-09-16 CN CN 200510029712 patent/CN1932839A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932051A (en) * | 2012-11-05 | 2013-02-13 | 北京半导体照明科技促进中心 | Method and device for signal transmission |
| CN102932051B (en) * | 2012-11-05 | 2015-11-11 | 珠海横琴华策光通信科技有限公司 | Method for transmitting signals and device |
| CN106339671A (en) * | 2016-08-16 | 2017-01-18 | 南京安穗智能科技有限公司 | Iris recognition device based on mobile image acquisition equipment |
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