CN110008786A - A kind of more camera lens iris authentication systems - Google Patents
A kind of more camera lens iris authentication systems Download PDFInfo
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- CN110008786A CN110008786A CN201810008098.3A CN201810008098A CN110008786A CN 110008786 A CN110008786 A CN 110008786A CN 201810008098 A CN201810008098 A CN 201810008098A CN 110008786 A CN110008786 A CN 110008786A
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- camera
- iris
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- iris capturing
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- 238000002955 isolation Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000000007 visual effect Effects 0.000 claims abstract description 6
- 238000003384 imaging method Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000006870 function Effects 0.000 claims 2
- 230000008450 motivation Effects 0.000 claims 1
- 210000000554 iris Anatomy 0.000 description 88
- 238000010586 diagram Methods 0.000 description 6
- 238000007792 addition Methods 0.000 description 3
- 230000001815 facial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 235000002911 Salvia sclarea Nutrition 0.000 description 1
- 244000182022 Salvia sclarea Species 0.000 description 1
- 241000385223 Villosa iris Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/147—Details of sensors, e.g. sensor lenses
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Signal Processing (AREA)
- Ophthalmology & Optometry (AREA)
- Human Computer Interaction (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of more camera lens iris authentication systems, including processor, processor connects multiple iris capturing cameras.By Bus isolation converter or with multiple iris capturing cameras are connect with the change-over switch of Bus isolation converter identical function, processor is turned on or off processor by each iris camera of the conversion and control of control bus isolating converter.The range that system provided by the invention can collect iris image substantially exceeds the visual field scope of single iris camera, can greatly improve usage experience.
Description
Technical field
The present invention relates to a kind of image recognition apparatus more particularly to a kind of more camera lens iris authentication systems.
Background technique
Iris is the visible internal of sole external in human body, and iris texture has the stability of height, uniqueness, no
Reproducibility.Iris recognition is identified using the feature of iris region in eye image, is known in current living things feature recognition
A kind of the characteristics of not highest identification technology of rate, iris, determines that iris recognition technology is than the bio-identifications skill such as fingerprint, face
Art is more stable, accurate identification technology, and iris recognition technology is more and more widely used in recent years.
In iris recognition technology, in the image that camera takes the pixel of iris region need to reach enough quantity and
Image resolution ratio enough clearly could for identification.Because the resolution ratio of camera image sensor chip is limited, in order to obtain
The iris image that must be met the requirements, the field angle that iris capturing camera generally uses is narrow, and user is using iris recognition system
It is fallen in this narrow visual field angular zone when system it is necessary to adjust the eye locations of oneself, while needing to adjust up and down and left
Right direction, the usage experience that will cause user in this way are very poor.
In order to improve the usage experience of user, it is common practice to adjust the aligning direction of iris capturing camera to adapt to
The user of different heights, or the eyes for allowing iris capturing camera to move alignment user up and down.But these
Adjustment and movement require to expend the regular hour, can also reduce the usage experience of user.
Summary of the invention
More camera lens iris authentication systems provided by the invention, the range that can collect iris image substantially exceed single iris
The visual field scope of camera greatly improves the usage experience of user.
An embodiment provides a kind of more camera lens iris authentication systems, including processor, processor connections
Multiple iris capturing cameras.
Preferably, processor is opened by Bus isolation converter or with the conversion with Bus isolation converter identical function
Connection connects multiple iris capturing cameras, and processor passes through each iris camera of the conversion and control of control bus isolating converter
It turns on or off.
Preferably, more camera lens iris authentication systems further include wide angle camera, and the field range of wide angle camera covers multiple rainbows
The field range of film camera, wide angle camera can be connect with processor, can also not connect from provided with processor with processor.
Preferably, more camera lens iris authentication systems further include one or more range sensors, processor and Distance-sensing
Device connection.
Preferably, more camera lens iris authentication systems further include one or more range sensors, processor by bus every
From converter or with connecting with the change-over switch of Bus isolation converter identical function with range sensor, processor passes through control
Each range sensor of conversion and control of Bus isolation converter processed turns on or off.
Preferably, iris capturing camera can be fixed-focus camera, zoom camera, or be passed by adjusting itself camera lens and image
The distance between sensor realizes the camera of focusing.
Preferably, fixed-focus camera may include tight shot, voice coil motor and imaging sensor, and imaging sensor is located at fixed
Behind zoom lens, tight shot is mounted on voice coil motor.
Preferably, fixed-focus camera includes tight shot, stepper motor, transmission mechanism and imaging sensor, and stepper motor connects
Transmission mechanism is connect, transmission mechanism connects tight shot, and the rotary motion of stepper motor is changed into linear motion by transmission mechanism, and
Tight shot is passed to, imaging sensor receives tight shot acquired image information.
Preferably, the rectangular array of iris capturing camera arrangement or circular array, the focal length of iris capturing camera it is identical or
It is different.
Preferably, the rectangular array of iris capturing camera arrangement or circular array, the field depth phase of iris capturing camera
It is same or different.
More camera lens iris authentication systems provided by the invention have following advantageous effects:
1. single-processor can surmount the limitation for the camera interface quantity supported itself, iris authentication system can be acquired
The visual field scope that single iris camera is substantially exceeded to the range of iris image, greatly improves usage experience.
2. joined wide angle camera in system, the field range of wide angle camera is more much bigger than iris capturing video camera, can
Collect the facial image in a wide range of.
3. joined range sensor in system, for obtaining identified object in the positioning of range direction, corresponding rainbow
Film acquires camera adjustment (focusing or focusing) with Quick Acquisition to clearly eye image.
Detailed description of the invention
Fig. 1 is one embodiment schematic diagram of more camera lens iris authentication systems of the invention.
Fig. 2 is that one embodiment of more camera lens iris authentication systems of the invention shows the schematic diagram for improving field range.
Fig. 3 is that one embodiment of more camera lens iris authentication systems of the invention shows the schematic diagram for improving field range.
Fig. 4 is that one embodiment of more camera lens iris authentication systems of the invention shows the schematic diagram for improving field range.
Specific embodiment
Below in conjunction with attached drawing of the embodiment of the present invention, technical solution in the embodiment of the present invention is carried out clearly and completely
Description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Bright embodiment, those skilled in the art's other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
With reference to Fig. 1, in one embodiment of the invention, more camera lens iris authentication systems include processor, and processor connects
Multiple iris capturing cameras are connect, iris capturing camera needs to be mounted on different positions according to actual use.
One iris authentication system can run multiple iris capturing cameras simultaneously, and multiple iris capturing cameras is allowed to be adopted
Collection is can increase pickup area at double.But the I/O mouth that processor is supported always is limited, and therefore, with reference to Fig. 1,
In one embodiment of the present of invention, processor by Bus isolation converter or with Bus isolation converter identical function
Change-over switch connects multiple iris capturing cameras, and processor passes through each iris of the conversion and control of control bus isolating converter
Camera turns on or off.
With reference to Fig. 1, in one embodiment of the invention, more camera lens iris authentication systems can also include wide angle camera,
The field range of wide angle camera covers the field range of multiple iris cameras, and the field range of wide angle camera is imaged than iris capturing
Machine is much bigger, can collect the facial image in a wide range of.Wide angle camera can be connect with processor, can also be from tape handling
Device is not connect with processor.
When work after identified objects trigger iris authentication system, wide angle camera is collected into the quilt in identification region
It identifies the facial image of object and is transferred to processor, processor calculates the position of human eye by operation and judges at human eye
In in the field range of which iris capturing camera, preprocessor issue the work of the instruction notification iris capturing camera, adopt
Collect eye image.The iris capturing camera worked at the same time can be more than one, is that the processor can support how many a irises to adopt
Collection camera works at the same time.Wide angle camera can be controlled by processor, can also be controlled from provided with processor.
With reference to Fig. 1, in one embodiment of the invention, more camera lens iris authentication systems can also include one or more
Range sensor needs to be mounted on different positions according to actual use, and processor is by Bus isolation converter or has
It is connect with the change-over switch of Bus isolation converter identical function with range sensor, processor is isolated by control bus to be converted
Each range sensor of the conversion and control of device turns on or off.Range sensor measures the distance of identified object,
Processor instructs corresponding iris capturing camera adjustment focusing according to the distance value received or focuses with Quick Acquisition to clearly
Clear eye image.
In one embodiment of the invention, iris capturing camera can be fixed-focus camera, zoom camera, or pass through adjusting
The distance between itself camera lens and imaging sensor realize the camera of focusing.The same position can also be equipped with 2 or more
The focal length of iris capturing camera, iris capturing camera lens is different, and the iris capturing camera of different focal length is in range direction
The field depth of blur-free imaging is different, by the iris capturing camera of more than two different focal lengths in range direction blur-free imaging
The addition of field depth can obtain in the wider array of blur-free imaging range of range direction.Processor is according to from range sensor
The numerical value for obtaining identified object distance direction indicates the iris capturing camera work of corresponding field depth.
Because using multiple iris capturing cameras, the pickup area of iris authentication system is increased, in addition iris capturing
The switching of camera can quickly jump to another position from a position, save the time of physical motion.It is different in this way
When the identified object of height enters collected region from different location or identified object after movement, iris authentication system
The very fast driving of energy is adjusted to corresponding iris capturing camera acquisition iris.
In one embodiment of the invention, fixed-focus camera may include tight shot, voice coil motor and imaging sensor,
Imaging sensor is located at behind the tight shot, and tight shot is mounted on voice coil motor.Voice coil motor can be accurate
Mobile tight shot, is imaged the human eye in suitable distance clearly on the image sensor.
In one embodiment of the invention, fixed-focus camera includes that tight shot, stepper motor, transmission mechanism and image pass
Sensor, stepper motor connect transmission mechanism, and transmission mechanism connects tight shot, and transmission mechanism turns the rotary motion of stepper motor
Become moving along a straight line, and pass to tight shot, realizes the movement for being accurately controlled tight shot, make the people in suitable distance
Eye is clearly imaged on the image sensor.
One embodiment that more camera lens iris authentication systems of the invention are shown with reference to Fig. 2, Fig. 2 shows raising field range
Schematic diagram, multiple iris cameras can greatly improve the field range of iris authentication system.
One embodiment that more camera lens iris authentication systems of the invention are shown with reference to Fig. 3, Fig. 3 shows raising field range
Schematic diagram, due to joined range sensor, the combination of range direction difference field depth iris camera cooperates, due to
The focal lengths of iris capturing camera lens is different, the field depth of the iris capturing camera of different focal length in range direction blur-free imaging
It is different, by the iris capturing cameras of more than two different focal lengths the field depth of range direction blur-free imaging addition just
The available range in the wider array of blur-free imaging of range direction.Processor is identified to image distance according to obtaining from range sensor
Numerical value from direction indicates the iris capturing camera work of corresponding field depth.
With reference to Fig. 4, when practical application, it can be used by two or more system in combination, in this way may be used together
To increase the quantity of iris capturing camera worked at the same time, the field range of iris can be collected by increasing the same time.Because
If the same identified object is being walked about or head is being shaken, eyes may cross the visual field of an iris capturing camera
Range.Increase more iris capturing cameras to work at the same time, it is possible to reduce the number of iris capturing camera switching improves reaction speed
Degree, further enhances the usage experience of user.
In one embodiment of the invention, iris capturing camera can be arranged in rectangular array or circular array, iris
The focal length for acquiring camera can be identical or different.
In one embodiment of the invention, iris capturing camera can be arranged in rectangular array or circular array, iris
The field depth for acquiring camera can be identical or different.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated is done various modifications or additions or is substituted using similar method, without departing from invention or is surpassed
More range defined in present claims, is within the scope of protection of the invention.
Claims (10)
1. a kind of more camera lens iris authentication systems, which is characterized in that including processor, the processor connects multiple iris capturings
Camera.
2. system according to claim 1, which is characterized in that the processor by Bus isolation converter or have with
The change-over switch of Bus isolation converter identical function connects the multiple iris capturing camera, and the processor is total by control
Each iris camera of the conversion and control of line isolating converter turns on or off.
3. system according to claim 1 or 2, which is characterized in that it further include wide angle camera, the visual field of the wide angle camera
Range covers the field range of the multiple iris camera.
4. system according to claim 1 or 2, which is characterized in that further include one or more range sensors, the place
Reason device is connect with the range sensor.
5. system according to claim 4, which is characterized in that the processor by Bus isolation converter or have with
The change-over switch of Bus isolation converter identical function is connect with the range sensor, the processor by control bus every
Each range sensor of conversion and control from converter turns on or off.
6. system according to claim 1 or 2, which is characterized in that the iris capturing camera is fixed-focus camera or zoom
Camera, or the camera focused is realized by adjusting the distance between itself camera lens and imaging sensor.
7. system according to claim 6, which is characterized in that described by adjusting between itself camera lens and imaging sensor
Distance realize that the camera of focusing includes tight shot, voice coil motor and imaging sensor, described image sensor is located at described
Behind tight shot, the tight shot is mounted on the voice coil motor.
8. system according to claim 6, which is characterized in that the fixed-focus camera includes tight shot, stepper motor, biography
Motivation structure and imaging sensor, the stepper motor connect transmission mechanism, and the transmission mechanism connects tight shot, the transmission
The rotary motion of stepper motor is changed into linear motion by mechanism, and passes to tight shot, and imaging sensor receives fixed-focus mirror
Head acquired image information.
9. system according to claim 1, which is characterized in that the rectangular array of the iris capturing camera arrangement or circle
The focal length of array, the iris capturing camera is identical or different.
10. system according to claim 1, which is characterized in that the rectangular array of the iris capturing camera arrangement or circle
The field depth of shape array, the iris capturing camera is identical or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008098.3A CN110008786A (en) | 2018-01-04 | 2018-01-04 | A kind of more camera lens iris authentication systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008098.3A CN110008786A (en) | 2018-01-04 | 2018-01-04 | A kind of more camera lens iris authentication systems |
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| CN110008786A true CN110008786A (en) | 2019-07-12 |
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| CN201810008098.3A Pending CN110008786A (en) | 2018-01-04 | 2018-01-04 | A kind of more camera lens iris authentication systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110490160A (en) * | 2019-08-23 | 2019-11-22 | 成都费恩格尔微电子技术有限公司 | A kind of the finger print information acquisition system and electronic equipment of more lens modules |
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| CN101814130A (en) * | 2009-02-19 | 2010-08-25 | 中国科学院自动化研究所 | Iris identification device by using camera array and multimodal biometrics identification method |
| WO2015172514A1 (en) * | 2014-05-16 | 2015-11-19 | 北京天诚盛业科技有限公司 | Image acquisition device and method |
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| CN106778713A (en) * | 2017-03-01 | 2017-05-31 | 武汉虹识技术有限公司 | The iris identification device and method of a kind of dynamic human eye tracking |
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2018
- 2018-01-04 CN CN201810008098.3A patent/CN110008786A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN1618079A (en) * | 2002-01-16 | 2005-05-18 | 虹膜技术公司 | System and method for iris identification using stereoscopic face recognition |
| US20050084179A1 (en) * | 2003-09-04 | 2005-04-21 | Keith Hanna | Method and apparatus for performing iris recognition from an image |
| CN101154264A (en) * | 2006-09-27 | 2008-04-02 | 中国科学院自动化研究所 | Large field-depth iris image capturing system and method based on multiple cameras with fixed focus |
| CN101814130A (en) * | 2009-02-19 | 2010-08-25 | 中国科学院自动化研究所 | Iris identification device by using camera array and multimodal biometrics identification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110490160A (en) * | 2019-08-23 | 2019-11-22 | 成都费恩格尔微电子技术有限公司 | A kind of the finger print information acquisition system and electronic equipment of more lens modules |
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Effective date of registration: 20220802 Address after: 519000 5-270, 5th floor, yunxigu Digital Industrial Park, No. 168, Youxing Road, Xiangzhou District, Zhuhai City, Guangdong Province (block B, Meixi Commercial Plaza) (centralized office area) Applicant after: Zhuhai Xianniu Technology Co.,Ltd. Address before: Room 130, 1st floor, Nanxun science and Technology Innovation Park, No. 666, Chaoyang Road, Nanxun Town, Nanxun District, Huzhou City, Zhejiang Province, 313009 Applicant before: ZHEJIANG HUZHOU XIANNIU INFORMATION TECHNOLOGY Co.,Ltd. Applicant before: SHENZHEN SHARE NEW INFORMATION TECHNOLOGIES CO.,LTD. |