CN106295536B - Self-adapting type iris identification device and the method for carrying out iris recognition using the device - Google Patents
Self-adapting type iris identification device and the method for carrying out iris recognition using the device Download PDFInfo
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- CN106295536B CN106295536B CN201610624851.2A CN201610624851A CN106295536B CN 106295536 B CN106295536 B CN 106295536B CN 201610624851 A CN201610624851 A CN 201610624851A CN 106295536 B CN106295536 B CN 106295536B
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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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
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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
- G06V40/50—Maintenance of biometric data or enrolment thereof
Abstract
The invention discloses a kind of self-adapting type iris identification devices, including lifting rotation bar and the first shell being arranged on lifting rotation bar, are equipped with central processing unit, iris capturing device, sounding device and the motor-driven lens matched with iris capturing device in first shell；Four human face detection devices are also evenly arranged with along the circumferential direction of the lifting rotation bar, human face detection device includes second shell, is equipped with the wide visual field camera being electrically connected with the central processing unit in second shell.The present invention passes through the cooperation of wide visual field camera and lifting rotation bar, solves the problems, such as that current existing iris identification device does not adapt to different height users and uses, while solving the problems, such as that the front for needing user to go to device in the past could complete identification.
Description
Technical field
The present invention relates to a kind of self-adapting type iris identification device and the methods for carrying out iris recognition using the device.
Background technique
Iris recognition technology gradually comes into people's lives as a kind of new authentication means.Due to iris
Identification technology have the advantages that it is many such as: non-contact capture, accuracy of identification be high, can with In vivo detection etc., therefore it gradually by
To the favor of people.At the same time, there are more and more iris recognition products, also on the market for acquiring the iris of people
Information is used for iris recognition process.
Iris recognition product category at present on the market is more, but has the following deficiencies: 1, do not adapt to different heights
The use demand of user also needs user to bow and cooperates even with the iris recognition product of angle regulation function；2, existing
Some iris recognition products are both needed to the front that user goes to device, could complete iris recognition.3, it cannot be adopted under intense light irradiation
Collect qualified iris image, and then influences recognition speed；4, certain in the darker environment such as low-light or no light
The weaker user of eyeground photoperceptivity, pupil can become larger, cause existing iris recognition product identification speed decline even
Rejection.5, for the infrared light supply in existing iris recognition product when working long hours or in hot environment, light-source temperature is continuous
Phenomena such as increasing, and then the reduction of its luminous efficiency, the frequency spectrum that shines caused to be drifted about, to influence the speed and precision of iris recognition.
Based on the defect of the above-mentioned prior art, and then need to provide a kind of new iris identification device, should have can
Different heights, different direction user use are adapted to, do any cooperation without user during iris recognition, user only need to be in rainbow
Head-up front can carry out the function of iris recognition, and the new iris recognition dress naturally in the operating distance of film identification device
Set also need to be able to solve under intense light irradiation, under low-light even no light when iris recognition speed is slow or rejection, infrared light
The problems such as luminous efficiency reduces when source works long hours, the frequency spectrum that shines drifts about.
Summary of the invention
The invention solves first technical problem be to provide a kind of self-adapting type iris identification device；The device passes through
The cooperation of wide visual field camera and lifting rotation bar, solving current existing iris identification device and not adapting to different height users makes
With the problem of, while solving the problems, such as that the front for needing user to go to device in the past could complete identification, and the device is also
Solve existing iris identification device under intense light irradiation, under low-light even no light when recognition speed slow even rejection ask
The problems such as luminous efficiency reduces when topic and infrared light supply work long hours, the frequency spectrum that shines drifts about.
The invention solves second technical problem be to provide it is a kind of utilize above-mentioned iris identification device carry out iris knowledge
Method for distinguishing；This method passes through being capable of automatic elevating rotary progress oneself height, orientation using iris identification device in the present invention
The characteristics of adjustment, solves the problems, such as that existing iris identification device does not adapt to different height users and uses, solves simultaneously
Existing identification device is both needed to user and goes to the problem of front of device could identify, and is done without user by this method any
Cooperation, can carry out iris recognition, and the process of iris recognition could be completed by shortening previous user and needing to adjust position repeatedly, mention
High user experience.
In order to solve the first technical problem mentioned above, the present invention adopts the following technical solutions:
A kind of self-adapting type iris identification device, the iris identification device include lifting rotation bar and are arranged in the liter
First shell on swingle drops, which can match with the lifting rotation bar and move up and down lifting and rotation
Turn；
Be equipped in the first shell central processing unit, iris capturing device, sounding device and with the iris capturing device phase
The motor-driven lens of cooperation；Lift rotary driving device, iris capturing device, sounding device and the motor-driven lens of the lifting rotation bar
It is electrically connected with the central processing unit；The front panel of the first shell is equipped with for perceiving external environment brightness in turn
The luminance sensor of motor-driven lens aperture is adjusted by central processing unit, and for real-time measurement user distance and then passes through center
The range sensor of processor adjustment motor-driven lens focal length；The luminance sensor and the range sensor respectively with it is described in
Central processor is electrically connected；
Matched on the motor-driven lens to be provided with a mounting plate, which is equipped with the infrared light being evenly distributed
Source；The thermistor that each of described infrared light supply road is in series with for reducing the infrared light supply calorific value；
Four human face detection devices, the Face datection dress are also evenly arranged with along the circumferential direction of the lifting rotation bar
It sets including second shell, the wide visual field camera being electrically connected with the central processing unit is equipped in the second shell.
Four human face detection devices are provided in the present invention, the angle between human face detection device is 90 degree two-by-two, often
Wide visual field camera field angle in the horizontal direction in a human face detection device is 95 degree, and such four human face detection devices exist
The synthesis field angle of horizontal direction is 380 degree, that is, guarantees personnel to be identified in arbitrary orientation, at least one wide visual field camera can
To detect complete facial image；The present invention utilizes the width in human face detection device by four human face detection devices of setting
Visual field camera realizes all standing to horizontal direction any position, may not need any cooperation of user, and real-time perception is arbitrarily square
Personnel to be identified existing for position complete iris recognition, solve existing so that controlling iris capturing device rotates to corresponding orientation
Device is both needed to user and goes to the problem of front of device could complete iris recognition.
Further, the first notch is offered on the front panel of the first shell, which is equipped with infrared
Filter；The second notch is offered on the infrared absorption filter tabula rasa, which is equipped with semi-transparent semi-reflecting lens.
Further, the infrared absorption filter tabula rasa is overlapped setting, the motor-driven lens position in center with the semi-transparent semi-reflecting lens
The inside plate face rear of the infrared absorption filter tabula rasa is arranged in plate face rear, the infrared light supply on the inside of the semi-transparent semi-reflecting lens,
And plane where the camera lens of the motor-driven lens is parallel to each other with semi-transparent semi-reflecting lens, and plane where the camera lens of the motor-driven lens
The distance between semi-transparent semi-reflecting lens are 3cm-5cm；The purpose being arranged in this way is, is the focal length fine tuning reserved one of motor-driven lens
A little spaces, while avoiding abrasion of the semi-transparent semi-reflecting lens to motor-driven lens.
Further, third notch is offered on the front panel of the second shell, which is equipped with organic
Glass plate, is equipped with the visible light source being evenly distributed around the wide visual field camera, the wide visual field camera and described visible
Radiant is respectively positioned on plate face rear on the inside of the machine glass plate, and the camera lens of wide visual field camera is overlapped with poly (methyl methacrylate) plate center,
Distance between the two is 3mm-5mm.Visible light source is used to cooperate with luminance sensor, in the lower time point of extraneous ambient brightness
It is bright, guarantee that iris capturing device can collect clearly facial image under no light or low-light environment first；Secondly, mentioning
Ambient brightness is risen, so that the myosis of personnel to be identified, improves the recognition speed of iris identification device.
The internal first shell for being equipped with iris capturing device is mounted on elevating lever in the present invention, passes through the upper of lifting rotation bar
Lower regulatory function, the first shell can move up and down lifting, so that iris capturing device can adapt to different height users
Use demand, by the rotation of lifting rotation bar, the first shell can in the horizontal plane 360 rotation so that rainbow
Film collector can adapt to the use demand of different direction user, while brightness sensing is equipped on the front panel of first shell
Luminance information is transmitted to central processing unit by the brightness of perception environment light by device and range sensor, the luminance sensor, center
Processor is shunk according to the aperture that luminance information controls motor-driven lens on iris capturing device, to make the iris image of shooting
Luminance constant avoids interference of the intense light irradiation to system, if ambient light is lower, central processing unit can control visible light light
Source point is bright, promotes ambient brightness, not only makes wide visual field camera that can also take clearly facial image under low illumination conditions,
And make the myosis of user, the deformation of iris image is reduced, recognition speed is improved, it is even unglazed to avoid low-light
According to the influence to system.The distance between range sensor real-time measurement user and iris identification device, central processing unit according to
Range information controls motor-driven lens and carries out zoom, to further obtain clearly iris image.
Heretofore described mounting plate and the intracorporal side wall of the first shell are affixed, in the plate body and the iris of mounting plate
Notch is equipped on collector at the corresponding position of motor-driven lens, the notch is for ensuring that motor-driven lens are coaxial with semi-transparent semi-reflecting lens
Matching.
It is equipped with concatenated thermistor on each of described infrared light supply road additionally, due to the present invention, for a long time
When work, the temperature of thermistor can be increased constantly, and the resistance value of thermistor can constantly become larger as the temperature rises, to make
The electric current that the infraluminescence pipe of infrared light supply must be flowed through becomes smaller, and then can reduce the temperature of infraluminescence pipe, so that infrared light
Source entirety calorific value reduces, and improves the whole lighting efficiency of infrared light supply, it is ensured that the frequency spectrum that shines does not deviate, to improve identification
Precision increases user experience.
To solve above-mentioned second technical problem, the present invention is adopted the following technical solutions:
A method of iris recognition being carried out using above-mentioned self-adapting type iris identification device, this method comprises:
S1, using the brightness of luminance sensor real-time perception iris identification device local environment, and utilize four wide visual fields
Whether with the presence of face around phase machine testing iris identification device, to judge whether with the presence of personnel to be identified, if so, wide
Personnel's azimuth information to be identified is transmitted to central processing unit by visual field camera, and central processing unit is set by the way that the control of lifting rotation bar is internal
The position for having the first shell lifting rotation of iris capturing device that iris capturing device can extremely be allowed to acquire personnel's iris to be identified, in turn
Step S2 is executed, if nothing, iris identification device keeps state to be identified；
S2, using the intracorporal wide visual field camera of second shell corresponding with orientation where personnel to be identified to people to be identified
On the basis of member carries out Face datection, current personnel's face location to be identified, central processing unit base are obtained in conjunction with range sensor
In face location, human eye feature is obtained, and positions position of human eye；
The position of human eye of S3, central processing unit based on current personnel to be identified, utilizes motor-driven lens and iris capturing device
Cooperation acquires the iris image information of personnel to be identified；
The iris templates of S4, central processing unit based on pre-stored, are compared the iris image information of personnel to be identified
Identification, if identifying successfully, sounding device issues voice prompting, if identification is failed, repeats step S2 to S4.
Further, the step S2 further comprises, central processing unit is by people to be identified captured by wide visual field camera
The face image storage of member, in case administrator checks.
Further, the step S3 specifically: position of human eye of the central processing unit based on current personnel to be identified utilizes
The brightness of the iris identification device local environment of luminance sensor real-time perception and utilization range sensor obtain current to be identified
The range information of personnel, central processing unit according to luminance information and range information control respectively motor-driven lens carry out aperture adjustment and
Lens zoom adjustment, so that iris capturing device can collect the iris image information of clearly personnel to be identified.
Further, the step S4 further comprises, if continuous iris recognition three times is failed, then it is assumed that should be wait know
Others' member is unregistered personnel, and wide visual field camera directly by the face image of captured personnel to be identified, is stored into centre
It manages in device, and sounding device issues voice prompting.
Compared with prior art, the present invention having following positive beneficial effect:
1, the present invention is uniformly put by four wide visual field cameras at 90 degree of horizontal face interval, is realized and is appointed to horizontal direction
The all standing of meaning position, can be with personnel to be identified existing for any orientation of real-time perception, to make rainbow by lifting rotation bar
Film collector rotates to corresponding orientation, completes iris recognition, is not necessarily to any cooperation of user, solves existing apparatus and be both needed to user
The problem of iris recognition could be completed by going to the front of device.
2, the present invention quickly positions human eye height by using wide visual field camera, and through it between lifting rotation bar
Cooperation, the height of adjust automatically iris capturing device deacclimatizes the user of different heights, and then does any cooperation without user, enhances
User experience solves the problems, such as that existing iris identification device does not adapt to different height users and uses.
3, present invention employs the cooperations of luminance sensor and motor-driven lens, it is suppressed that influence of the intense light irradiation to equipment is opened up
The wide application scenarios of equipment, solve that existing iris identification device recognition speed under intense light irradiation is slow or even what cannot be identified asks
Topic.
4, the present invention uses the cooperation of luminance sensor and visible light source, solves user's pupil size under low-light and becomes
Big problem improves recognition speed to reduce the deformation of client iris image, enhances user experience, has widened and has answered
Use scene.
5, the present invention utilizes the distance of range sensor real-time measurement user distance device, and by adjusting motor-driven lens
Focal length deacclimatizes the user of different distance, improves the operating distance of iris identification device.
6, the present invention joined thermistor in the circuit of infrared light supply, avoid the infraluminescence pipe in infrared light supply
It when working long hours or being in hot environment, is constantly increased with environment and own temperature, caused luminous efficiency reduces, shine frequency
Phenomena such as Frequency bias, improves recognition efficiency and precision of the iris identification device when temperature difference environment works for a long time or greatly.
Detailed description of the invention
Fig. 1 is surface structure schematic diagram of the invention.
Fig. 2 is one of schematic diagram of internal structure of the invention.
Fig. 3 is the two of schematic diagram of internal structure of the invention.
Fig. 4 is use state of the present invention with reference to figure.
Fig. 5 is the method flow diagram of iris recognition provided by the present invention.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawing.
As shown in Figures 1 to 4, a kind of self-adapting type iris identification device, the iris identification device include lifting rotation bar 1
With the first shell 2 being arranged on the lifting rotation bar 1, which can match progress with the lifting rotation bar 1
Move up and down lifting and rotation；The first notch is offered on the front panel of the first shell 2, which is equipped with
Infrared absorption filter tabula rasa 21；The second notch is offered on the infrared absorption filter tabula rasa 21, which is equipped with semi-transparent semi-reflecting lens 22,
The infrared absorption filter tabula rasa 21 is overlapped setting in center with the semi-transparent semi-reflecting lens 22.
Be equipped in the first shell 2 central processing unit 3, iris capturing device 4, sounding device 5 and with the iris capturing
The motor-driven lens 41 that device 4 matches；Lift rotary driving device, iris capturing device 4, the sounding device 5 of the lifting rotation bar 1
It is electrically connected with the central processing unit 3 with motor-driven lens 41；It is matched on the motor-driven lens 41 to be provided with an installation
Plate 411, the mounting plate 411 are equipped with the infrared light supply 6 being evenly distributed；It connects each of the infrared light supply 6 road
There is the thermistor 61 for reducing 6 calorific value of infrared light supply；
It is additionally provided on the front panel of the first shell 2 for perceiving external environment brightness and then being that central processing unit 3 is adjusted
Whole 41 aperture of motor-driven lens and control visible light source 81, which are lighted, provides the luminance sensor 23 of foundation, and is used for real-time measurement
User distance passes through the range sensor 24 that central processing unit 3 adjusts 41 focal length of motor-driven lens in turn；The luminance sensor 23
It is electrically connected respectively with the central processing unit 3 with the range sensor 24.
Further, the motor-driven lens 41 are located at the 22 inside plate face rear of semi-transparent semi-reflecting lens, the infrared light supply 6
The inside plate face rear of the infrared absorption filter tabula rasa 21 is set；And the motor-driven lens 41 camera lens where plane with it is semi-transparent semi-reflecting
Mirror 22 is parallel to each other, and the distance between plane and semi-transparent semi-reflecting lens 22 where the camera lens of the motor-driven lens 41 are 3cm-5cm.
Four human face detection devices, the Face datection are also evenly arranged with along the circumferential direction of the lifting rotation bar 1
Device includes second shell 7, and third notch is offered on the front panel of the second shell 7, which is equipped with organic
Glass plate 71；The wide visual field camera 8 being electrically connected with the central processing unit 3, the wide visual field phase are equipped in the second shell 7
The visible light source 81 being evenly distributed is equipped with around machine 8, the wide visual field camera 8 and the visible light source 81 are respectively positioned on institute
State 71 inside plate face rear of machine glass plate.
Four human face detection devices are provided in the present invention, the angle between human face detection device is 90 degree two-by-two, often
The field angle in the horizontal direction of wide visual field camera 8 in a human face detection device is 95 degree, such four human face detection devices
Synthesis field angle in the horizontal direction is 380 degree, that is, guarantees personnel to be identified in arbitrary orientation, at least one wide visual field camera
8 can detecte complete facial image；And then it can be with personnel to be identified existing for real-time perception arbitrary orientation, to control rainbow
Film collector 4 rotates to corresponding orientation, completes iris recognition, is not necessarily to any cooperation of user, solves existing apparatus and be both needed to use
The problem of front that family goes to device could complete iris recognition.
As shown in Fig. 1 to 5, a method of iris recognition, the party are carried out using above-mentioned self-adapting type iris identification device
Method includes:
S1, using the brightness of 23 real-time perception iris identification device local environment of luminance sensor, and utilize four wide views
Whether field camera 8 detects around iris identification device with the presence of face, thus whether judge with the presence of personnel to be identified, if
Have, personnel's azimuth information to be identified is transmitted to central processing unit 3 by wide visual field camera 8, and central processing unit 3 passes through lifting rotation bar 1
Internal 2 lifting rotation of first shell for being equipped with iris capturing device 4 of control can extremely allow iris capturing device 4 to acquire personnel's rainbow to be identified
The position of film, and then step S2 is executed, if nothing, iris identification device keeps state to be identified；
S2, the wide visual field camera 8 in utilization second shell 7 corresponding with orientation where personnel to be identified are to be identified
On the basis of personnel carry out Face datection, current personnel's face location to be identified, central processing are obtained in conjunction with range sensor 24
Device 3 is based on face location, obtains human eye feature, and position position of human eye；And simultaneously central processing unit 3 by 8 institute of wide visual field camera
The face image storage of the personnel to be identified of shooting, in case administrator checks；
The position of human eye of S3, central processing unit 3 based on current personnel to be identified, utilizes 23 real-time perception of luminance sensor
The brightness of iris identification device local environment and the range information that current personnel to be identified are obtained using range sensor 24, center
Processor 3 controls motor-driven lens 41 according to luminance information and range information respectively and carries out aperture adjustment and lens zoom adjustment, from
And iris capturing device 4 is enabled to collect the iris image information of clearly personnel to be identified.
The iris templates of S4, central processing unit 3 based on pre-stored, are compared the iris image information of personnel to be identified
Identification, if identifying successfully, sounding device 5 issues voice prompting, if identification is failed, repeats step S2 to S4.
The step S4 further comprises, if continuous iris recognition three times is failed, then it is assumed that the personnel to be identified are
Unregistered personnel, wide visual field camera 8 are directly stored into the face image of captured personnel to be identified in central processing unit 3,
And sounding device 5 issues voice prompting.
Iris identification device provided by the present invention and method, in actual use, luminance sensor 23 can real-time perceptions
The brightness of iris identification device local environment constantly adjusts the aperture of motor-driven lens 41, which is existed
It is used in the stronger environment of brightness, avoids influence of the intense light irradiation to equipment in Outdoor Scene；Outside luminance sensor 23 perceives
When boundary's brightness is darker, visible light source can be controlled by central processing unit 3 and light 81, so that iris identification device is in dark ring
Also iris recognition can be quickly completed under border, wide visual field camera 8 can also collect clearly facial image in a dark environment, be people
Eye positioning is prepared；Range sensor 24 can obtain the distance of user distance iris capturing device 4, constantly adjust motor-driven lens 41
Focal length allows iris identification device to take the iris information of different distance user.When this iris identification device is arranged four
When a wide visual field camera 8, four wide visual field cameras 8 can cover any position of horizontal plane, for determining that the orientation of user is believed
Breath, simultaneously because 8 vertical plane areas imaging of wide visual field camera is larger, so the wide visual field camera 8 of corresponding orientation can quickly determine
Height locating for the eyes of user of position, and then the height of lifting rotation bar 1 is adjusted, so that the iris capturing device 4 in first shell 2 can
To meet the use demand of different heights, orientation user in real time.
And since infrared light supply 6 is when working long hours, temperature can be increased, and luminous efficiency is caused to decline, spectral shift, from
And the speed and precision of iris recognition is influenced, the present invention is in series in each of infrared light supply 6 Lu Shangjun for reducing described
The thermistor 61 of 6 calorific value of infrared light supply, by the addition of thermistor 61, so that the temperature of infrared light supply 6 is in one
Among dynamic balance, to improve recognition efficiency and precision of the equipment when working for a long time or in big temperature difference environment.
To sum up iris identification device provided by the present invention is by increasing wide visual field camera on existing iris identification device
8, luminance sensor 23, range sensor 24 and thermistor 61, and using between these devices and existing iris identification device
Cooperation, allow iris identification device provided by the present invention to adapt to the height of user, azimuth-range automatically, automatically
The illumination and temperature of external environment are adapted to, while increasing iris identification device robustness, the user experience is improved.
What the word "upper" in description orientation, "lower", "left", "right" etc. were for illustrating used by herein facilitates base
In attached drawing for orientation shown in drawing, in actual device these orientation may due to device disposing way and
It is different.
In conclusion embodiment of the present invention only provides a kind of optimal embodiment, in technology of the invention
Hold and technical characterstic has revealed that as above, however one skilled in the art scholar is still potentially based on disclosed content and makees
Various replacements and modification without departing substantially from creation spirit of the present invention；Therefore, protection scope of the present invention is not limited to disclosed in embodiment
Technology contents, therefore equivalence changes that all shapes under this invention, construction and principle are done are encompassed by protection model of the invention
In enclosing.
Claims (8)
1. a kind of self-adapting type iris identification device, it is characterised in that: the iris identification device includes lifting rotation bar and sets
The first shell on the lifting rotation bar is set, which can match with the lifting rotation bar and move up and down
Lifting and rotation；
It is equipped with central processing unit, iris capturing device, sounding device in the first shell and is matched with the iris capturing device
Motor-driven lens；Lift rotary driving device, iris capturing device, sounding device and the motor-driven lens of the lifting rotation bar with
The central processing unit is electrically connected；The front panel of the first shell is equipped with for perceiving external environment brightness and then passing through
Central processing unit adjusts the luminance sensor of motor-driven lens aperture, and for real-time measurement user distance and then passes through central processing
The range sensor of device adjustment motor-driven lens focal length；The luminance sensor and the range sensor respectively with the centre
Device is managed to be electrically connected；
Matched on the motor-driven lens to be provided with a mounting plate, which is equipped with the infrared light supply being evenly distributed；
The thermistor that each of described infrared light supply road is in series with for reducing the infrared light supply calorific value；
Four human face detection devices, the human face detection device packet are also evenly arranged with along the circumferential direction of the lifting rotation bar
Second shell is included, is equipped with the wide visual field camera being electrically connected with the central processing unit in the second shell；
The angle between human face detection device is 90 degree two-by-two, and the wide visual field camera in each human face detection device is in level side
To field angle be 95 degree.
2. self-adapting type iris identification device according to claim 1, which is characterized in that the front panel of the first shell
On offer the first notch, which is equipped with infrared absorption filter tabula rasa；The second notch is offered on the infrared absorption filter tabula rasa,
Second indentation, there is equipped with semi-transparent semi-reflecting lens.
3. self-adapting type iris identification device according to claim 2, which is characterized in that the infrared absorption filter tabula rasa with it is described
Semi-transparent semi-reflecting lens are overlapped setting in center, and the motor-driven lens are located at plate face rear on the inside of the semi-transparent semi-reflecting lens, described infrared
The inside plate face rear of the infrared absorption filter tabula rasa is arranged in light source.
4. self-adapting type iris identification device according to claim 1, which is characterized in that the front panel of the second shell
On offer third notch, which is equipped with poly (methyl methacrylate) plate, is equipped with around the wide visual field camera in uniformly point
The visible light source of cloth, the wide visual field camera and the visible light source are respectively positioned on plate face rear on the inside of the machine glass plate.
5. a kind of a kind of self-adapting type iris identification device using as described in any claim in above-mentioned Claims 1-4
The method for carrying out iris recognition, which is characterized in that this method comprises:
S1, using the brightness of luminance sensor real-time perception iris identification device local environment, and utilize four wide visual field cameras
It detects around iris identification device whether with the presence of face, to judge whether with the presence of personnel to be identified, if so, wide visual field
Personnel's azimuth information to be identified is transmitted to central processing unit by camera, and central processing unit is equipped with rainbow by the way that the control of lifting rotation bar is internal
The first shell lifting rotation of film collector can extremely allow iris capturing device to acquire the position of personnel's iris to be identified, and then execute
Step S2, if nothing, iris identification device keeps state to be identified；
S2, using the intracorporal wide visual field camera of second shell corresponding with orientation where personnel to be identified to personnel to be identified into
On the basis of row Face datection, current personnel's face location to be identified is obtained in conjunction with range sensor, central processing unit is based on people
Face position obtains human eye feature, and positions position of human eye；
The position of human eye of S3, central processing unit based on current personnel to be identified, utilizes the cooperation of motor-driven lens and iris capturing device
Acquire the iris image information of personnel to be identified；
Identification is compared to the iris image information of personnel to be identified in the iris templates of S4, central processing unit based on pre-stored,
If identifying successfully, sounding device issues voice prompting, if identification is failed, repeats step S2 to S4.
6. the method for iris recognition according to claim 5, which is characterized in that the step S2 further comprises center
Processor stores the face image of personnel to be identified captured by wide visual field camera, in case administrator checks.
7. the method for iris recognition according to claim 5, which is characterized in that the step S3 specifically: central processing
Position of human eye of the device based on current personnel to be identified utilizes the iris identification device local environment of luminance sensor real-time perception
Brightness and the range information that current personnel to be identified are obtained using range sensor, central processing unit is according to luminance information and distance
Information controls motor-driven lens respectively and carries out aperture adjustment and lens zoom adjustment, so that iris capturing device can collect clearly
The iris image information of clear personnel to be identified.
8. the method for iris recognition according to claim 5, which is characterized in that the step S4 further comprises, if even
Continuous iris recognition three times is failed, then it is assumed that the personnel to be identified are unregistered personnel, and wide visual field camera directly will be captured
Personnel to be identified face image, be stored into central processing unit, and sounding device issue voice prompting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610624851.2A CN106295536B (en) | 2016-08-02 | 2016-08-02 | Self-adapting type iris identification device and the method for carrying out iris recognition using the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610624851.2A CN106295536B (en) | 2016-08-02 | 2016-08-02 | Self-adapting type iris identification device and the method for carrying out iris recognition using the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106295536A CN106295536A (en) | 2017-01-04 |
| CN106295536B true CN106295536B (en) | 2019-05-03 |
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ID=57664365
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