CN104992163B - A kind of facial image and iris image acquire Optical devices and its identity identifying method simultaneously - Google Patents
A kind of facial image and iris image acquire Optical devices and its identity identifying method simultaneously Download PDFInfo
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- CN104992163B CN104992163B CN201510431947.2A CN201510431947A CN104992163B CN 104992163 B CN104992163 B CN 104992163B CN 201510431947 A CN201510431947 A CN 201510431947A CN 104992163 B CN104992163 B CN 104992163B
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- 230000001815 facial effect Effects 0.000 title claims abstract description 46
- 230000003287 optical effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003384 imaging method Methods 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 238000005286 illumination Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000010408 film Substances 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000012788 optical film Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 241000385223 Villosa iris Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/193—Preprocessing; Feature extraction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/197—Matching; Classification
Abstract
The invention discloses a kind of facial images and iris image to acquire Optical devices and its identity identifying method simultaneously, which includes man face image acquiring module and iris image acquiring module；The man face image acquiring module is made of preposition imaging microscope group, Amici prism, Facial Image Capturing Camera, image processing unit and lighting source；The iris image acquiring module is made of preposition imaging microscope group, Amici prism, iris camera assembly, image processing unit and lighting source；The man face image acquiring module and iris image acquiring module share preposition imaging microscope group, image processing unit and lighting source, and the separation of man face image acquiring module optical path and iris image acquiring module optical path is realized by Amici prism.The present invention can clearly acquire the facial image and iris image of user simultaneously, and the facial image and iris image of acquisition have determining positioning relation, and convenient for subsequent image processing, the extraction of face characteristic and iris feature, safety is higher.
Description
Technical field
The invention belongs to biometrics identification technology fields, and in particular to a kind of facial image acquires simultaneously with iris image
Optical devices and its identity identifying method.
Background technique
Continuous improvement with people to important place safety prevention rank, the door based on the identification of single human body biological characteristics
Prohibit control system and has been unable to meet requirement.For this reason, it may be necessary to develop two or more living things feature recognition based on human body
Access control system, to further increase the safety precaution rank of access control system.Face and iris are two kinds of weights of human body
The biological characteristic wanted, can be used for authentication.It, can be by both biologies in order to improve the safety precaution rank of access control system
Feature identification technique is used in combination in a set of access control system, and realization face combines knowledge with two kinds of biological characteristics of iris
Not.Only face and iris passes through certification, and user could be allowed to pass through verifying.It needs to research and develop thus a kind of while acquiring use
The Optical devices of person's facial image and iris image.
Currently, having occurred the human face image collecting device of simple function and the iris image acquiring of simple function in the market
Device there is no the Optical devices that can while clearly acquire facial image and iris image.According to statistics, the size of face is generally
110mm × 200mm, and human iris's average diameter is φ 12mm, i.e. facial size is 9-17 times of iris, so facial size
It differs larger with iris dimensions, can not clearly acquire facial image and iris image simultaneously with a set of common Optical devices.
Iris image is such as acquired with man face image acquiring Optical devices, then iris image is too small and differentiate its details can not.Conversely,
Facial image is acquired with iris image acquiring device, then is unable to get complete facial image.
Summary of the invention
Goal of the invention: the deficiencies in the prior art are directed to, the object of the present invention is to provide a kind of facial image and rainbows
Film image acquires Optical devices simultaneously, can clearly acquire the facial image and iris image of user simultaneously, have higher
Safety.It is a further object of the present invention to provide the bodies that a kind of above-mentioned facial image and iris image acquire Optical devices simultaneously
Identity authentication method.
Technical solution: in order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention are as follows:
A kind of facial image and iris image acquire Optical devices, including man face image acquiring module and iris image simultaneously
Acquisition module；The man face image acquiring module is by preposition imaging microscope group, Amici prism, Facial Image Capturing Camera, image processing unit
It is formed with lighting source；The iris image acquiring module is by preposition imaging microscope group, Amici prism, iris camera assembly, image
Processing unit and lighting source composition；The man face image acquiring module and iris image acquiring module share preposition imaging lens
Group, image processing unit and lighting source, and realize that man face image acquiring module optical path is adopted with iris image by Amici prism
Collect the separation of module optical path.
The Amici prism is formed by two right-angle prism gluings, and Dichroic Optical film is coated on cemented surface.
The sub- imaging optical path that the iris camera assembly is placed in parallel by 2 forms, the amplification of 2 sub- imaging optical paths
Multiplying power is identical and is all larger than 1, can the clear iris image of two eyes in acquisition left and right simultaneously.
The enlargement ratio of the man face image acquiring module is equal to the enlargement ratio of preposition imaging microscope group, the iris image
Total enlargement ratio of acquisition module is equal to the preposition imaging enlargement ratio of microscope group and putting for iris camera assembly neutron imaging optical path
The product of big multiplying power.
The lighting source is made of two sub-light sources, from the left and right sides symmetrical illumination face of face, so that face is whole
Uniform illumination is obtained in a range.
The facial image and iris image acquires the identity identifying method of Optical devices simultaneously, comprising the following steps:
1) facial image of man face image acquiring module acquisition user is utilized；
2) extract collected facial image feature, and with the face characteristic information that is stored in image processing unit into
Row compares, and such as compares unsuccessful, then stops working；Otherwise it enters step 3)；
3) iris image of iris image acquiring module acquisition two eyes of user is utilized；
4) respectively extract institute collected two width iris image feature, and with stored in image processing unit iris spy
Reference breath is compared, and such as compares successfully, then user passes through authentication；Otherwise it stops working.
The utility model has the advantages that compared with prior art, the present invention has the following technical effect that
1) present invention is made of man face image acquiring module and iris image acquiring module, two image capture module independences
Work, and the enlargement ratio of iris image acquiring module is greater than 1, thus the present invention can clearly acquire user's simultaneously
Facial image and iris image.
2) the man face image acquiring module in the present invention and iris image acquiring module share preposition imaging microscope group, illumination light
Source, the optical axis coincidence of two image capture modules, the facial image and iris image of acquisition have determining positioning relation, are convenient for
Subsequent image processing, the extraction of face characteristic and iris feature.
3) the advanced row recognition of face of the present invention, only face just can be carried out iris recognition by certification, and and if only if two kinds
Biological characteristic passes through certification, and user could may be implemented user's face and two kinds of biologies of iris are special by authentication
The joint of sign identifies that safety is higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that facial image and iris image acquire Optical devices simultaneously；
Fig. 2 is the structural schematic diagram of iris camera assembly.
Specific embodiment
The present invention will be further described below with reference to the drawings.
As shown in Figure 1, acquiring Optical devices simultaneously for facial image and iris image of the invention, primary structure includes people
Face image acquiring module and iris image acquiring module.Wherein, man face image acquiring module is by preposition imaging microscope group 1, light splitting rib
Mirror 2, Facial Image Capturing Camera 5, image processing unit 6, the first lighting source 701, the second lighting source 702 composition.Iris image is adopted
Collect module by preposition imaging microscope group 1, Amici prism 2, iris camera assembly 4, image processing unit 6, the first lighting source 701,
Second lighting source 702 composition.Man face image acquiring module and iris image acquiring module share preposition imaging microscope group 1, image
Processing unit 6, the first lighting source 701, the second lighting source 702, and man face image acquiring module is realized by Amici prism 2
It is separated with the optical path of iris image acquiring module.
The enlargement ratio of preposition imaging microscope group 1 is between 0.044 ~ 0.12 times, so that face completely images in face and takes the photograph
On the target surface of camera 5.The target surface size of Facial Image Capturing Camera 5 is between 11mm × 8.8mm to 36mm × 24mm.
Amici prism 2 is formed by two right-angle prism gluings, and cemented surface 201 is coated with Dichroic Optical film.The light splitting light
Learning film can be a point amplitude type, be also possible to partial wave elongated.When Dichroic Optical film be divide amplitude type when, then facial image with
Iris image is imaged with the illumination light of phase co-wavelength.When Dichroic Optical film is partial wave elongated, then facial image is with visible light
Imaging, and iris image is imaged with near-infrared wavelength.
As shown in Fig. 2, for the present invention in iris camera assembly 4, the iris camera assembly 4 by two be placed in parallel son at
As optical path composition, the iris image of two eyes of user can be acquired simultaneously.Wherein the first sub- imaging optical path is zoomed by first
As microscope group 401 and the first iris video camera 403 composition, the second sub- imaging optical path is by the second amplification imaging microscope group 402 and the second rainbow
Film video camera 404 forms.The enlargement ratio of the two sub- imaging optical paths is identical and is all larger than 1, can between 6.1 ~ 16.7 times,
To after the iris image 301 and 302 formed by preposition imaging microscope group 1 at intermediate image plane 3 is amplified respectively completely clearly at
As on the target surface of the first iris video camera 403 and the second iris video camera 404.
The enlargement ratio of man face image acquiring module is equal to the enlargement ratio of preposition imaging microscope group 1, i.e., 0.044 ~ 0.12
Between times.Total enlargement ratio of iris image acquiring module is equal to the enlargement ratio and iris camera assembly 4 of preposition imaging microscope group 1
The product of the enlargement ratio of neutron imaging optical path, i.e., between 0.268 ~ 2.004 times.
First iris video camera 403 is identical as the target surface size of the second iris video camera 404, arrives in 11mm × 8.8mm
Between 36mm × 24mm.
First lighting source 701, the second lighting source 702 are wideband light source, and launch wavelength is from 400nm to 850nm
Continuous spectrum.First lighting source 701, the second lighting source 702 are from the left and right sides symmetrical illumination face 8 of face, to make one
Uniform illumination is obtained in 8 entire scope of face.
Optical devices are acquired simultaneously using above-mentioned facial image and iris image, and identity authentication method is carried out to user,
Process is as follows:
1) facial image of man face image acquiring module acquisition user is utilized.
2) extract collected facial image feature, and with the face characteristic information that is stored in image processing unit 6
It is compared, such as compares unsuccessful, then stop working；Otherwise it enters step 3).
3) iris image of iris image acquiring module acquisition two eyes of user is utilized.
4) respectively extract institute collected two width iris image feature, and with stored in image procossing member 6 iris spy
Reference breath is compared, and such as compares successfully, then user passes through authentication；Otherwise it stops working.
The facial image and iris image acquire Optical devices, typical structural parameters simultaneously are as follows: preposition imaging microscope group 1
Enlargement ratio is 0.12 times；Amici prism 2 be partial wave elongated, the Dichroic Optical film reflector 400nm that cemented surface 201 is coated with ~
The visible light of 800nm, the near infrared light for transmiting 800nm ~ 850nm；The target surface of Facial Image Capturing Camera 5 is having a size of 36mm × 24mm, ruler
The very little face for 110mm × 200mm on 5 target surface of Facial Image Capturing Camera at the size of image be 13.2mm × 24mm.Diameter is
The iris of f12mm is f1.44mm at the diameter of iris image 301 and 302 in 3 place of intermediate image plane；First amplification imaging microscope group
401 and second amplification imaging microscope group 402 enlargement ratio be 6.1 times, diameter be f12mm iris in the first iris video camera
403 and 404 target surface of the second iris video camera at image size be f8.8mm；First iris video camera 403 and the second rainbow
The target surface size of film video camera 404 is identical, is 11mm × 8.8mm.The enlargement ratio of man face image acquiring module is equal to preposition
The enlargement ratio of imaging microscope group 1, as 0.12 times.Total enlargement ratio of iris image acquiring module is 0.732 times.First illumination
Light source 701, the second lighting source 702 are broadband LED, and launch wavelength is the continuous spectrum from 400nm to 850nm.
The process that Optical devices carry out authentication to user is acquired simultaneously using above-mentioned facial image and iris image
Are as follows: when user, which enters facial image and iris image of the invention, acquires the effective coverage of Optical devices simultaneously, at image
Reason unit 6 first acquire the image of user's face 8, the characteristic information of extraction 8 image of face, and stores in image processing unit 6
Face characteristic information be compared, if comparison is unsuccessful, stop working；If comparing successfully, image processing unit 6 into one
Step acquisition user two eyes iris image, extract collected two width iris image characteristic information, and with figure
As the iris feature information stored in processing unit 6 is compared, such as compare successfully, then user passes through authentication；Otherwise
It stops working.
As it can be seen that the present invention may be implemented user's face and two kinds of biological characteristics of iris combine identification, increase substantially
The security level of the access control system of Optical devices is simultaneously acquired using facial image and iris image of the invention.
Claims (4)
1. a kind of facial image and iris image acquire Optical devices simultaneously, it is characterised in that: including man face image acquiring module
With iris image acquiring module；The man face image acquiring module is by preposition imaging microscope group, Amici prism, Facial Image Capturing Camera, figure
As processing unit and lighting source form；The iris image acquiring module is imaged by preposition imaging microscope group, Amici prism, iris
Component, image processing unit and lighting source composition；Before the man face image acquiring module and iris image acquiring module share
It is set to as microscope group, image processing unit and lighting source, and man face image acquiring module optical path and rainbow is realized by Amici prism
The separation of film image acquisition module optical path；The Amici prism is formed by two right-angle prism gluings, is coated on cemented surface point
Light optical thin film, optical thin film are to divide amplitude type optical thin film；The sub- imaging that the iris camera assembly is placed in parallel by 2
Road composition, the enlargement ratio of 2 sub- imaging optical paths is identical and is all larger than 1, can clear two eyes in acquisition left and right simultaneously
Iris image.
2. facial image according to claim 1 and iris image acquire Optical devices simultaneously, it is characterised in that: the people
The enlargement ratio of face image acquiring module is equal to the enlargement ratio of preposition imaging microscope group, and the iris image acquiring module is always put
Big multiplying power is equal to the product of the enlargement ratio of preposition imaging microscope group and the enlargement ratio of iris camera assembly neutron imaging optical path.
3. facial image according to claim 1 and iris image acquire Optical devices simultaneously, it is characterised in that: the photograph
Mingguang City source is made of two sub-light sources, from the left and right sides symmetrical illumination face of face, so as to obtain in face entire scope equal
Even consistent illumination.
4. facial image described in claim 1 and iris image acquire the identity identifying method of Optical devices, feature simultaneously
It is, comprising the following steps:
1) facial image of man face image acquiring module acquisition user is utilized；
2) extract collected facial image feature, and compared with the face characteristic information stored in image processing unit
It is right, it such as compares unsuccessful, then stops working；Otherwise it enters step 3)；
3) iris image of iris image acquiring module acquisition two eyes of user is utilized；
4) respectively extract institute collected two width iris image feature, and with stored in image processing unit iris feature letter
Breath is compared, and such as compares successfully, then user passes through authentication；Otherwise it stops working.
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| CN201510431947.2A CN104992163B (en) | 2015-07-22 | 2015-07-22 | A kind of facial image and iris image acquire Optical devices and its identity identifying method simultaneously |
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| CN201510431947.2A CN104992163B (en) | 2015-07-22 | 2015-07-22 | A kind of facial image and iris image acquire Optical devices and its identity identifying method simultaneously |
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| CN104992163A CN104992163A (en) | 2015-10-21 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105320943A (en) * | 2015-10-22 | 2016-02-10 | 北京天诚盛业科技有限公司 | Biometric identification apparatus and biometric identification method therefor |
| CN105787477A (en) * | 2016-04-11 | 2016-07-20 | 北京奇虎科技有限公司 | Iris recognition method and terminal |
| CN107978035B (en) * | 2016-10-25 | 2020-07-17 | 杭州海康威视数字技术股份有限公司 | Access control method and system |
| CN107292290B (en) * | 2017-07-17 | 2021-02-19 | Oppo广东移动通信有限公司 | Face living body identification method and related product |
| CN108182387B (en) * | 2017-12-13 | 2022-05-20 | 深圳市欢太科技有限公司 | Iris recognition assembly for electronic device and electronic device |
| CN108965658A (en) * | 2018-06-25 | 2018-12-07 | 中国科学院自动化研究所 | Essence registration image collecting device towards depth Digital Zoom |
| CN109190509B (en) | 2018-08-13 | 2023-04-25 | 创新先进技术有限公司 | Identity recognition method, device and computer readable storage medium |
| CN110519061A (en) * | 2019-09-02 | 2019-11-29 | 国网电子商务有限公司 | A kind of identity identifying method based on biological characteristic, equipment and system |
| CN113515975B (en) * | 2020-04-10 | 2022-11-08 | 北京眼神科技有限公司 | Face and iris image acquisition method and device, readable storage medium and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100524343C (en) * | 2007-03-13 | 2009-08-05 | 杭州电子科技大学 | Method and apparatus for collecting binoculus iris |
| CN102567707B (en) * | 2010-12-27 | 2016-10-12 | 北京北科慧识科技股份有限公司 | Biometric sensor and biological recognition system |
| CN102799878B (en) * | 2012-07-09 | 2015-10-21 | 中国科学技术大学 | Iris face fusion acquisition device |
| CN204759455U (en) * | 2015-07-22 | 2015-11-11 | 江苏天诚智能集团有限公司 | Facial image and iris image simultaneous acquisition optical devices |
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Address after: No.2252, Shaling Road, Shatou, Jiangsu Province Patentee after: Jiangsu Tiancheng Intelligent Group Co.,Ltd. Country or region after: China Patentee after: SHANGHAI INSTITUTE OF OPTICS AND FINE MECHANICS CHINESE ACADEMY OF SCIENCES Address before: No.2252, Shaling Road, Shatou, Jiangsu Province Patentee before: JIANGSU TC SMART SYSTEMS GROUP Co.,Ltd. Country or region before: China Patentee before: SHANGHAI INSTITUTE OF OPTICS AND FINE MECHANICS CHINESE ACADEMY OF SCIENCES |