CN109394168B - A kind of iris information measuring system based on light control - Google Patents
A kind of iris information measuring system based on light control Download PDFInfo
- Publication number
- CN109394168B CN109394168B CN201811213084.1A CN201811213084A CN109394168B CN 109394168 B CN109394168 B CN 109394168B CN 201811213084 A CN201811213084 A CN 201811213084A CN 109394168 B CN109394168 B CN 109394168B
- Authority
- CN
- China
- Prior art keywords
- iris
- image
- light source
- acquisition
- collecting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of iris information measuring system, acquisition system and method based on light control, wherein measuring system includes light source, for providing illumination to iris；Acquisition device, for acquiring iris information；Control device is used to control opening and closing light source, and control acquisition device acquires iris information simultaneously or after light source is closed, before pupil is restored to predefined size；Measuring device measures its size according to iris information.Present invention firstly provides close opportunity mutual cooperation using image acquisition device opportunity and light source to prevent the iris in acquisition from light source picture occur.
Description
Technical field
The present invention relates to field of measuring technique, in particular to iris length, appearance and size field of measuring technique.
Background technique
In iris capturing measurement in order to increase effective area, need myosis.Pupil contracting common at present
Small mode carries out light filling when being included in iris measurement, that is, utilizes certain illumination, so that pupil light-inletting quantity increases, so as to cause life
The myosis of rationality.This process certainly will be needed using light source.
However the crystalline lens before eyeball is transparence object, meeting reflection source light when light source irradiates eyes, thus
The picture of light source is formed on eyes, the picture of this light source will affect the acquisition of iris.When the image position of light source is overlapped with iris, rainbow
Film information will be unable to collect, and can only collect a highlighted light source picture.
This problem in order to prevent, in the prior art usually by adjusting light source, collected iris, camera position, thus
So that the image position of light source is in non-acquired region, such as on pupil, or be located at iris edge etc..But even if in this way, light source
Picture can still influence collection effect to a certain extent, and need complicated adjustment process could make the image position of light source in
Designated position.
Therefore, be badly in need of a kind of device that light filling can be carried out to iris collection device now so that when acquisition iris not by
Reflective influence of the light source in eyes, and simple and stable.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State iris information measuring system, acquisition system and the method based on light control of problem.
The iris information measuring system based on light control that the present invention provides a kind of, including
Light source, for providing illumination to iris；
Acquisition device, for acquiring iris information；
Control device, for control open and close light source, and light source close simultaneously or after, pupil be restored to it is predetermined
Acquisition device is controlled before size acquires iris information；
Measuring device measures its size according to iris information.
The iris information acquisition system based on light control that the present invention provides a kind of, including
Light source, for providing illumination to iris；
Acquisition device, for acquiring iris information；
Control device, for control open and close light source, and light source close simultaneously or after, pupil be restored to it is predetermined
Acquisition device is controlled before size acquires iris information.
The present invention also provides a kind of iris information acquisition methods, including open light source, provide illumination to iris；
Light source is closed after myosis；
While closing light source or later, control acquisition device acquires iris information before pupil size restores.
Optionally, it is characterised in that: iris information is the image information of iris.
Optionally, acquisition device is image collecting device, for providing pickup area, acquires iris image.
Optionally, image collecting device obtains the image of the different directions of iris from multiple pickup areas.
Optionally, the light source is single light source or multiple light courcess.
It optionally, further include image processing apparatus, for multiple images to be synthesized to the 3D information of iris.
Optionally, the position of image collecting device at least meets two neighboring position and at least accords with when acquiring described multiple images
Close following condition:
H* (1-cosb)=L*sin2b；
A=m*b；
0<m<0.8；
Wherein L is distance of the image collecting device to object, and H is object actual size in acquired image, and a is
Two neighboring location drawing picture acquisition device optical axis included angle, m are coefficient.
Optionally, adjacent three positions of image collecting device meet when acquiring described multiple images adopts on corresponding position
At least there is the part for indicating object the same area in three images of collection.
Inventive point and technical effect
1, there are such technology prejudice for the prior art: needing illumination to make myosis when acquisition iris, expands iris
It needs to carry out illumination to iris while acquiring area, therefore acquire.And the present invention overcomes above-mentioned technology prejudice, is put forward for the first time elder generation
Extinguish the technology that light source acquires iris image again.
2, existing light-supplementing system be by controlling the position of light source picture, light source luminescent feature prevents on collected iris
The picture of light source does not influence to acquire, and present invention firstly provides close opportunity phase interworking using image acquisition device opportunity and light source
Conjunction prevents the iris in acquisition from light source picture occur.
3, the technical problem for causing polyphaser matrix acquisition resolution ratio lower due to camera volume is recognized and proposed for the first time,
It is not particularly suited for iris capturing.And propose that acquisition is improved by way of forming virtual camera matrix within a certain period of time differentiates
Rate, resolution ratio can achieve Pixel-level.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is iris information measurement/acquisition system schematic diagram provided by the invention based on light control；
Fig. 2 is iris 3D information measurement/acquisition system schematic diagram provided by the invention based on light control；
Fig. 3 is the schematic diagram of camera follow shot status requirement in the embodiment of the present invention 2；
Fig. 4 is a kind of realization side that iris 3D information acquisition system uses one camera rotating acquisition in the embodiment of the present invention 3
The schematic diagram of formula；
Fig. 5 is that iris 3D information acquisition system is realized using second of one camera rotating acquisition in the embodiment of the present invention 3
The schematic diagram of mode；
Fig. 6 is that iris 3D information acquisition system is realized using the third of one camera rotating acquisition in the embodiment of the present invention 3
The schematic diagram of mode；
Fig. 7 is that iris 3D information acquisition system is realized using the 4th kind of one camera rotating acquisition in the embodiment of the present invention 3
The schematic diagram of mode；
Fig. 8 is that iris 3D information acquisition system is realized using the 5th kind of one camera rotating acquisition in the embodiment of the present invention 3
The schematic diagram of mode；
Fig. 9 is that iris 3D information acquisition system is realized using the 6th kind of one camera rotating acquisition in the embodiment of the present invention 3
The schematic diagram of mode；
Figure 10 is the kind realization side for acquiring iris 3D information acquisition system in the embodiment of the present invention 4 using light deflection
The schematic diagram of formula；
Figure 11 is the second various realizations for acquiring iris 3D information acquisition system in the embodiment of the present invention 4 using light deflection
The schematic diagram of mode；
Figure 12 is the third the realization side for acquiring iris 3D information collecting device in the embodiment of the present invention 4 using light deflection
The schematic diagram of formula.
Description of symbols:
201 image collecting devices, 500 control devices, 600 light sources, 400 processors, 300 irises, 101 tracks, 100 images
Processing unit, 102 mechanical mobile devices, 202 rotary shafts, 203 shaft driving devices, 204 lifting devices, 205 lifting driving dresses
It sets, 4 controlling terminals, 211 light deflection units, 212 light deflection driving units, 3 objects.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Embodiment 1 (light source control)
As shown in Figure 1, iris information measurement/acquisition system based on light control includes image collecting device 201, iris
300, control device 500, light source 600, processor 400.
Image collecting device 201 can be that polyphaser matrix, fixed one camera, video camera, rotation one camera etc. can be real
The equipment of existing Image Acquisition.Its image for being used to acquire iris 300.It only needs to acquire iris two when carrying out two-dimentional iris capturing
Image is tieed up, and is sent in processor 400 and carries out image procossing, measurement and identification.But two-dimentional iris measurement and identification are
It is unable to satisfy current high-precision, the acquisition of high accuracy, measurement, identification requirement, therefore the present invention is it is also proposed that utilize virtual camera
Matrix realizes three-dimensional iris capturing.Collected plurality of pictures is sent into processor 400 and is carried out by image collecting device 201 at this time
Image procossing synthesizes (specific method is referring to following embodiments), forms 3-D image and point cloud data.
Light source 600, which is used to provide light to human eye, expands the area of iris so as to cause myosis.Light source 600 can be with
For single light source, or distributed light source.Light source 600 can be the light source of fixed-illumination, or controlled intelligent light
Source.
When carrying out iris capturing, in order to increase effective area, need myosis.Pupil contracting common at present
Small mode carries out light filling when being included in iris measurement, that is, utilizes certain illumination, so that pupil light-inletting quantity increases, so as to cause life
The myosis of rationality.This process certainly will be needed using light source.However the crystalline lens before eyeball is transparence object, light source
Meeting reflection source light when irradiating eyes, to form the picture of light source on eyes, the picture of this light source will affect adopting for iris
Collection.When the image position of light source 600 is overlapped with iris, iris information will be unable to collect, and can only collect a highlighted light
Source image.The present invention causes the corresponding myosis of iris 300 in the illumination of light source 600, after the increase of 300 area of iris, in order to
Prevent the picture of light source from appearing in iris region, controller 500 closes light source at this time, and controls image collecting device 201 simultaneously and open
Begin acquisition iris image.Since pupil is still deflated state in a short time, the iris of larger area can be both acquired in this way
Image, and the quality of acquisition image will not be influenced by the picture of light source.
Controller 500 can send shutdown signal to light source simultaneously in control, send shutter letter to image collecting device
Number.
But since light source light can restore size according to pupil after disappearing within a certain period of time, Image Acquisition should be short-term
Interior completion at least will complete acquisition before pupil restores.Therefore, in another embodiment, after closing light source, although not having
Acquisition iris image is got started simultaneously, it should also start to acquire iris image within a short period of time, according to experiment, preferred value is
0.2 second.
When carrying out iris 3D information collection, image collecting device 201 is needed to shoot multiple figures of iris from different perspectives
Piece, and it is shorter to time interval pupil recovery after light source closing, therefore it is required that image collecting device 201 shutter speed foot
It is enough.If it is the image collecting device of one camera, the acquisition of the more images of multi-angle, therefore the speed rotated are realized by rotation
Also require that it is sufficiently fast, and quickly velocity of rotation to shutter speed require faster.That is, image collecting device 201
Acquisition speed, shutter speed to from light source closing after to pupil restore time interval it is related.
Control device 500 and processor 400 can realize two functions for same device, or different devices,
Control and image procossing are realized respectively.This can be depending on actual chips function, performance.
Embodiment 2
In order to solve the above technical problems, one embodiment of the invention provides a kind of iris 3D information collection/measuring system.
As shown in Fig. 2, specifically including: track 101, image collecting device 201, image processing apparatus 100, mechanical mobile device 102, figure
As acquisition device 201 is mounted on mechanical mobile device 102, mechanical mobile device 102 can be moved along track 101, to make
The pickup area for obtaining image collecting device 201 constantly changes, and is formd on the scale of a period of time in space different location
Multiple pickup areas constitute acquisition matrix, but in only one pickup area of some moment, therefore acquisition matrix is " virtual "
's.Since image collecting device 201 is usually made of camera, also referred to as virtual camera matrix.But image collecting device 201 can also
Think video camera, CCD, CMOS, camera, the mobile phone with image collecting function, plate and other electronic equipments.
The matrix dot of above-mentioned virtual matrix determines by the position of image collecting device 201 when acquisition target object image, phase
Adjacent two positions at least meet following condition:
H* (1-cosb)=L*sin2b；
A=m*b；
0<m<1.5；
Wherein L is the distance that image collecting device 201 arrives object, and usually image collecting device 201 is in first position
When distance apart from object face collected region, m is coefficient.
H is object actual size in acquired image, and image is usually image collecting device 201 at first position
The picture of shooting, the object in the picture has true geometric dimension (not being the size in picture), when measuring the size
Along the orientation measurement of first position to the second position.Such as first position and the second position are the relationships moved horizontally, then
The size is measured along the horizontal cross of object.Such as the object left end that can show that in picture is A, right end is
B then measures the linear distance of A to B on object, is H.Measurement method can be according to A, B distance in picture, combining camera camera lens
Focal length carries out actual distance calculation, and A, B can also be identified on object, directly measures AB straight line using other measurement means
Distance.
A is two neighboring location drawing picture acquisition device optical axis included angle.
M is coefficient.
Since article size, concave-convex situation are different, the value of a can not be limited with strict formula, needs rule of thumb to carry out
It limits.According to many experiments, the value of m preferably can be within 0.8 within 1.5.Specific experiment data are referring to such as
Lower table:
| Object | M value | Synthetic effect | Synthetic ratio |
| Body iris | 0.11、0.29、0.4 | It is very good | > 90% |
| Body iris | 0.48、0.65 | It is good | > 85% |
| Body iris | 0.71、0.83 | It is relatively good | > 80% |
| Body iris | 0.92、1.0 | Generally | > 70% |
| Body iris | 1.15、1.23 | Generally | > 60% |
| Body iris | 1.3、1.43、1.54 | Synthesis reluctantly | > 50% |
| Body iris | 1.69 | It is difficult to synthesize | < 40% |
After object and image collecting device 201 determine, the value of a can be calculated according to above-mentioned empirical equation, according to a
Value is that can determine the parameter of virtual matrix, i.e. positional relationship between matrix dot.
In general, virtual matrix is one-dimensional matrix, such as along the multiple matrix dots of horizontal direction arrangement (acquisition position
It sets).But when some target objects are larger, two-dimensional matrix is needed, then two adjacent in vertical direction positions equally meet
Above-mentioned a value condition.
Under some cases, even from above-mentioned empirical equation, also it is not easy to determine matrix parameter (a value) under some occasions, this
When need to adjust matrix parameter according to experiment, experimental method is as follows: prediction matrix parameter a is calculated according to above-mentioned formula, and according to
Matrix parameter control camera is moved to corresponding matrix dot, such as camera shoots picture P1 in position W1, after being moved to position W2
Picture P2 is shot, whether in picture P1 and picture P2 have the part that indicates object the same area, i.e. P1 ∩ P2 is non-if comparing at this time
Empty (such as simultaneously including human eye angle part, but photograph taking angle is different), if readjusting a value without if, re-moves
To position W2 ', above-mentioned comparison step is repeated.If P1 ∩ P2 non-empty, phase is continued to move to according to a value (adjustment or unadjusted)
Machine shoots picture P3, comparing whether to have in picture P1, picture P2 and picture P3 again indicates object the same area to the position W3
Part, i.e. P1 ∩ P2 ∩ P3 non-empty please refers to Fig. 3.It recycles plurality of pictures to synthesize 3D, tests 3D synthetic effect, meet 3D
Information collection and measurement request.That is, the structure of matrix is by image collecting device 201 when acquisition multiple images
What position determined, it is at least same in the presence of expression object that adjacent three positions meet three images acquired on corresponding position
The part in region.
After virtual matrix obtains multiple target object images, the above-mentioned image of image processing apparatus processing synthesizes 3D.It utilizes
The multiple images synthesis 3D point cloud or image of multiple angles of camera shooting can be used to be carried out according to adjacent image characteristic point
Other methods also can be used in the method for image mosaic.
The method of image mosaic includes:
(1) multiple images are handled, extracts respective characteristic point；The feature of respective characteristic point can in multiple images
To be retouched using SIFT (Scale-Invariant Feature Transform, scale invariant feature conversion) Feature Descriptor
It states.SIFT feature description has 128 feature description vectors, and the 128 of any characteristic point can be described on direction and scale
The feature of a aspect significantly improves the precision to feature description, while Feature Descriptor has independence spatially.
(2) characteristic point of the multiple images based on extraction, feature point cloud data and the iris for generating face characteristic respectively are special
The feature point cloud data of sign.It specifically includes:
(2-1) carries out the spy of plurality of pictures according to the feature of the respective characteristic point of each image in the multiple images of extraction
The matching for levying point, establishes matched facial feature points data set；According to the respective feature of each image in the multiple images of extraction
The feature of point, carries out the matching of the characteristic point of plurality of pictures, establishes matched iris feature point data collection；
(2-2) according to the optical information of camera, obtain multiple images when camera different location, calculate each position phase
Relative position of the machine relative to characteristic point spatially, and the space of the characteristic point in multiple images is calculated depending on the relative position
Depth information.Similarly, the spatial depth information of the characteristic point in multiple images can be calculated.Bundle adjustment can be used in calculating
Method.
The spatial depth information for calculating characteristic point may include: spatial positional information and colouring information, that is, can be feature
Point is in the X axis coordinate of spatial position, characteristic point in the Y axis coordinate of spatial position, characteristic point in the Z axis coordinate of spatial position, spy
Levy the channel B of the colouring information of the value in the channel R of the colouring information of point, the value in the channel G of the colouring information of characteristic point, characteristic point
Value, the value in the channel Alpha of colouring information of characteristic point etc..In this way, containing feature in the feature point cloud data generated
The spatial positional information and colouring information of point, the format of feature point cloud data can be as follows:
X1 Y1 Z1 R1 G1 B1 A1
X2 Y2 Z2 R2 G2 B2 A2
……
Xn Yn Zn Rn Gn Bn An
Wherein, Xn indicates characteristic point in the X axis coordinate of spatial position；Yn indicates characteristic point in the Y axis coordinate of spatial position；
Zn indicates characteristic point in the Z axis coordinate of spatial position；Rn indicates the value in the channel R of the colouring information of characteristic point；Gn indicates feature
The value in the channel G of the colouring information of point；Bn indicates the value of the channel B of the colouring information of characteristic point；The color of An expression characteristic point
The value in the channel Alpha of information.
(2-3) generates object according to the spatial depth information of multiple images matched characteristic point data collection and characteristic point
The feature point cloud data of feature.
(2-4) constructs object 3D model according to feature point cloud data, to realize the acquisition of object point cloud data.
Collected object color, texture are attached on point cloud data by (2-5), form object 3D rendering.
Wherein it is possible to 3D rendering is synthesized using all images in one group of image, it can also be higher from wherein selection quality
Image synthesized.
Above-mentioned joining method is limited citing, however it is not limited to which this, several with good grounds multi-angle two dimensional images of institute generate three
The method of dimension image can be used.
Embodiment 3 (single-shaft-rotation iris capturing)
Small range, small 3 iris of depth targets object are smaller compared with camera acquisition range for lateral dimension, and along the camera depth of field
Direction size is smaller, i.e., object 3 is less in depth direction information.Under this application, although passing through track, mechanical arm
Etc. the single camera system that moves on a large scale of modes can equally acquire 3 multi-angle image of object to synthesize 3D point cloud or figure
Picture, but these equipment are complex, so that reliability reduces.And significantly movement causes acquisition time to extend.And
And since volume is larger, many occasions (such as access control system) can not be suitable for.
And small range, small depth targets object 3 have the characteristics that oneself is peculiar, it is required that acquisition/measuring device volume it is small, can
It is high by property, acquisition speed is fast, especially it requires acquisition range that lower (object 3 of big depth then needs large range of
Acquisition, all information can be acquired by being in different location in particular for camera).Applicant be put forward for the first time the application and
Occasion, and be the 3D point cloud and Image Acquisition for realizing object 3 with most succinct rotating device for its feature, it makes full use of
The object 3 requires acquisition range small feature.
, 3D information acquisition system includes: image collecting device 201, for passing through the pickup area of image collecting device 201
3 one groups of images of object are acquired with 3 relative motion of object；Pickup area mobile device, for driving image collecting device 201
Pickup area and object 3 generate relative motion；Pickup area mobile device is turning gear, so that image collecting device
201 along a central axis rotation；
- Fig. 9 referring to fig. 4, image collecting device 201 are a camera, and camera passes through the camera that is fixedly mounted on turn seat
On fixed frame, rotary shaft 202 is connected under turn seat, rotary shaft 202 is controlled by shaft driving device 203 and rotated, shaft driving
Device 203 and camera are all connected with controlling terminal 4, and for controlling, shaft driving device 203 implements driving to controlling terminal 4 and camera is clapped
It takes the photograph.In addition, rotary shaft 202 can also be directly fixedly connected with image collecting device 201, camera rotation is driven.
Due to different from traditional 3D acquisition, 3 iris of implementation goal object of the application belongs to small-scale 3D object.Cause
This, without being reappeared on a large scale to target, but need to carry out high-precision acquisition, measurement and comparison to its surface main feature,
I.e. measurement accuracy requires high.Camera rotational angle does not need accurate control that is excessive, but needing to guarantee rotational angle.Invention passes through
Angle acquisition device is set in driving rotary shaft 202 and/or turn seat, and shaft driving device 203 drives rotary shaft 202, phase
Machine is rotated according to the degree of setting, and angle acquisition device measures degree of rotation and by measurement feedback to controlling terminal 4, and is set
Fixed degree is compared, and guarantees rotation precision.Shaft driving device 203 drives rotary shaft 202 to turn over two or more angles,
Camera circumferentially rotates around central axis under the drive of turn seat and completes the shooting of different angle, by the bat of different angle
The image taken the photograph is sent to controlling terminal 4, and terminal log generates final 3-D image according to being handled.It can also be sent to
Processing unit, realizes the synthesis (specific synthetic method see below image split-joint method) of 3D, and processing unit can be independent dress
It sets, or with other devices with processing function, or remote equipment.Wherein, it is pre- can also to connect image for camera
Processing unit pre-processes image.Object 3 is iris, guarantees object 3 in the acquisition of shooting in camera rotation process
In region.
Controlling terminal 4 is chosen as processor, computer, remote control center etc..
Image collecting device 201 could alternatively be video camera, CCD, other image acquisition devices such as infrared camera.Meanwhile
Image collecting device 201 can be with integral installation on bracket, such as tripod, fixed platform etc..
Shaft driving device 203 is chosen as brushless motor, high-accuracy stepper motor, angular encoder, rotating electric machine etc..
Referring to Fig. 5, rotary shaft 202 is located at 201 lower section of image collecting device, rotary shaft 202 and image collecting device 201
It is directly connected to, central axis intersects with image collecting device 201 at this time；Central axis shown in fig. 6 is located at image collecting device 201
The camera lens side of camera is provided with rotation at this point, camera is around center axis rotation and is shot between rotary shaft 202 and turn seat
Turn linking arm；Central axis shown in Fig. 7 is located at the reversed side of camera lens of the camera of image collecting device 201, at this point, camera around
Center axis rotation is simultaneously shot, and rotation link arm is provided between rotary shaft 202 and turn seat, and can according to need will even
It connects arm and is set as that there is curved structure upward or downward；Central axis shown in Fig. 8 is located at the mirror of the camera of image collecting device 201
Reversed side, and central axis be it is horizontally disposed, which allows camera to carry out angular transformation in vertical direction, can fit
There should be the object 3 of special characteristic to shoot in vertical direction, wherein shaft driving device 203 drives rotary shaft 202 to rotate, band
Movable pendulum moves linking arm and moves up and down；Shaft driving device 203 shown in Fig. 9 further includes lifting device 204 and goes up and down for controlling
The lifting drive 205 that device 204 moves, lifting drive 205 are connect with controlling terminal 4, increase 3D information collection
The shooting area range of system.
The 3D information acquisition system occupies little space, and the system of shooting efficiency mobile camera a wide range of compared with needs obviously mentions
Height, especially suitable for small range, the application scenarios of small depth targets high-precision 3D acquisition of information.
Embodiment 4 (light deflection iris capturing)
Referring to Fig. 9 to Figure 11, iris 3D information acquisition system includes: image collecting device 201, for passing through Image Acquisition
The pickup area of device 201 and 3 relative motion of object acquire 3 one groups of images of object；Pickup area mobile device, for driving
The pickup area and object 3 of motion video acquisition device 201 generate relative motion；Pickup area mobile device is optical scanner dress
It sets, so that in the case that image collecting device 201 is not moved or rotated, the pickup area and object 3 of image collecting device 201
Generate relative motion.
Referring to Fig. 9, pickup area mobile device further includes light deflection unit 211, optionally, light deflection unit 211
It is driven by light deflection driving unit 212, image collecting device 201 is a camera, and camera is fixedly mounted, and physical location is not sent out
Changing is not moved and is not rotated yet, make the pickup area of camera that certain variation occur by light deflection unit 211,
To realize that object 3 and pickup area change, during being somebody's turn to do, light deflection unit 211 can be driven single by light deflection
212 driving of member is so that the light of different directions enters image collecting device 201.Light deflection driving unit 212 can be control
The linear motion of light deflection unit 211 or the driving device of rotation.Light deflection driving unit 212 and camera are all connected with control eventually
End 4, controlling terminal 4 implement driving and camera shooting for controlling shaft driving device 203.
It can also be appreciated that the implementation goal object 3 of the application belongs to small due to different from traditional 3D acquisition technique
The 3D object of range.It is therefore not necessary to be reappeared on a large scale to target, but high-precision obtain need to be carried out to its surface main feature
It takes, measures and compare, i.e., measurement accuracy requires high.Therefore the displacement of light deflection unit 211 of the present invention or amount of spin are not necessarily to
It is excessive, but need to guarantee the requirement of precision and object 3 in coverage.Invention on light deflection unit 211 by setting
Angle acquisition device and/or displacement acquisition device are set, when light deflection driving unit 212 drives light deflection unit 211 to move
When, angle acquisition device and/or displacement acquisition device measure degree of rotation and/or straight-line displacement amount and give measurement feedback
Controlling terminal 4 is compared with preset parameter, guarantees precision.When light deflection driving unit 212 drives light deflection
When unit 211 is rotated and/or is displaced, camera correspond to light deflection unit 211 different location state complete two or
The image of two or more shootings is sent to controlling terminal 4 by multiple shootings, and terminal log generates final according to being handled
3-D image.Wherein, camera can also connect image pre-processing unit, pre-process to image.
Controlling terminal 4 is chosen as processor, computer, remote control center etc..
Image collecting device 201 could alternatively be video camera, CCD, other image acquisition devices such as infrared camera.Meanwhile
Image collecting device 201 is fixed on mounting platform, and position fixation does not change.
Light deflection driving unit 212 is chosen as brushless motor, high-accuracy stepper motor, angular encoder, rotating electric machine etc..
Referring to Fig. 9, light deflection unit 211 is reflecting mirror, it is to be understood that needs can be set one according to measurement
Or one or more can be correspondingly arranged in multiple reflecting mirrors, light deflection driving unit 212, and controls the generation of plane mirror angle
Variation is so that the light of different directions enters image collecting device 201；Light deflection unit 211 shown in Figure 11 is lens group,
Lens in lens group may be configured as one or more, and one or more can be correspondingly arranged in light deflection driving unit 212,
And it controls lens angle and changes so that the light of different directions enters image collecting device 1；Light deflection list shown in Figure 12
Member 211 includes multiple surface rotating mirror.
In addition, light deflection unit 211 can be DMD, i.e., it can control the deflection side of DMD reflecting mirror using electric signal
To so that the light of different directions enters image collecting device 201.And since DMD size is very small, can show
It lands and reduces the size of whole equipment, and since DMD can greatly improve measurement and acquisition speed with high-speed rotation
Degree.This is also one of inventive point of the invention.
Although realizing camera rotation and light deflection simultaneously it is appreciated that above-mentioned two embodiment is separately write
It is possible.
3D information measurement apparatus including 3D information acquisition system, wherein 3D information acquisition system obtains 3D information, will believe
Breath is sent to controlling terminal 4, and the information of 4 pairs of controlling terminal acquisitions, which calculate analyzing, obtains whole characteristic points on object 3
Space coordinate.Including, 3D information image splicing module, 3D information pre-processing module, 3D information algorithms selection module, 3D letter
Cease computing module, space coordinate point 3D information reconstruction module.The data that above-mentioned module is used to obtain 3D information acquisition system into
Row calculation processing simultaneously generates measurement result, and wherein measurement result can be 3D point cloud image.Measurement include length, profile, area,
The geometric parameters such as volume.
3D information comparison device including 3D information acquisition system, wherein 3D information acquisition system obtains 3D information, will believe
Breath is sent to controlling terminal 4, and the information of 4 pairs of controlling terminal acquisitions, which calculate analyzing, obtains whole characteristic points on object 3
Space coordinate, and be compared with preset value, judge the state of measured target.Except the module in aforementioned 3D information measurement apparatus
Outside, 3D information comparison device further includes default 3D information extraction modules, information comparison module, comparison result output module and prompt
Module.Comparison device the measurement result of measured target object 3 can be compared with preset value, in order to produce result examine and
It processes again.For finding the case where measured target object 3 and preset value are significantly greater than threshold value there are deviation in comparison result, issue
Warning prompt.
At least the one of the object 3 of 3D information acquisition system acquisition may be implemented in the mating object generating means of object 3
The 3D information in a region generates the mating object matched with 3 corresponding region of object.Specifically, the present invention is applied to sports apparatus
Or medical auxiliary apparatus production, there are individual differences for organization of human body, and therefore, unified mating object is unable to satisfy everyone need
It asks, 3D information acquisition device of the present invention obtains someone ancon image, its three-dimensional structure is inputted mating object generating means, for giving birth to
Produce the elbow rest set for restoring rehabilitation convenient for its ancon.Mating object generating means can for industrial molding machine, 3D printer or its
He is all those skilled in the art will understand that production equipment.Its 3D information acquisition device for configuring the application is fast to realize
Speed customizes production.
Although The present invention gives above-mentioned a variety of applications (measurement compares, generation), it is to be understood that, the present invention can be only
It is vertical to be used as 3D information collecting device.
A kind of 3D information collecting method, comprising:
S1. in the pickup area of image collecting device 201 and 3 relative movement of object, image collecting device 201
Acquire 3 one groups of images of object；
S2 pickup area mobile device by one of the following two kinds scheme drive the pickup area of image collecting device 201 with
Object 3 generates relative motion:
S21. pickup area mobile device is turning gear, so that image collecting device 201 is along a central axis rotation；
S22. pickup area mobile device is optical scanner, so that image collecting device 201 was not moved or rotated
In the case of, the pickup area and object 3 of image collecting device 201 generate relative motion.
It can be used using the multiple images synthesis 3D point cloud or image of multiple angles of camera shooting according to adjacent image
The method that characteristic point carries out image mosaic, also can be used other methods.
The method of image mosaic includes:
(1) multiple images are handled, extracts respective characteristic point；The feature of respective characteristic point can in multiple images
To be retouched using SIFT (Scale-Invariant Feature Transform, scale invariant feature conversion) Feature Descriptor
It states.SIFT feature description has 128 feature description vectors, and the 128 of any characteristic point can be described on direction and scale
The feature of a aspect significantly improves the precision to feature description, while Feature Descriptor has independence spatially.
(2) characteristic point of the multiple images based on extraction, feature point cloud data and the iris for generating face characteristic respectively are special
The feature point cloud data of sign.It specifically includes:
(2-1) carries out the spy of multiple images according to the feature of the respective characteristic point of each image in the multiple images of extraction
The matching for levying point, establishes matched facial feature points data set；According to the respective feature of each image in the multiple images of extraction
The feature of point, carries out the matching of the characteristic point of multiple images, establishes matched iris feature point data collection；
(2-2) according to the optical information of camera, obtain multiple images when camera different location, calculate each position phase
Relative position of the machine relative to characteristic point spatially, and the space of the characteristic point in multiple images is calculated depending on the relative position
Depth information.Similarly, the spatial depth information of the characteristic point in multiple images can be calculated.Bundle adjustment can be used in calculating
Method.
The spatial depth information for calculating characteristic point may include: spatial positional information and colouring information, that is, can be feature
Point is in the X axis coordinate of spatial position, characteristic point in the Y axis coordinate of spatial position, characteristic point in the Z axis coordinate of spatial position, spy
Levy the channel B of the colouring information of the value in the channel R of the colouring information of point, the value in the channel G of the colouring information of characteristic point, characteristic point
Value, the value in the channel Alpha of colouring information of characteristic point etc..In this way, containing feature in the feature point cloud data generated
The spatial positional information and colouring information of point, the format of feature point cloud data can be as follows:
X1 Y1 Z1 R1 G1 B1 A1
X2 Y2 Z2 R2 G2 B2 A2
……
Xn Yn Zn Rn Gn Bn An
Wherein, Xn indicates characteristic point in the X axis coordinate of spatial position；Yn indicates characteristic point in the Y axis coordinate of spatial position；
Zn indicates characteristic point in the Z axis coordinate of spatial position；Rn indicates the value in the channel R of the colouring information of characteristic point；Gn indicates feature
The value in the channel G of the colouring information of point；Bn indicates the value of the channel B of the colouring information of characteristic point；The color of An expression characteristic point
The value in the channel Alpha of information.
(2-3) generates object 3 according to the spatial depth information of multiple images matched characteristic point data collection and characteristic point
The feature point cloud data of feature.
(2-4) constructs object 3D model according to feature point cloud data, to realize the acquisition of 3 point cloud data of object.
Collected 3 color of object, texture are attached on point cloud data by (2-5), form object 3D rendering.
Wherein it is possible to 3D rendering is synthesized using all images in one group of image, it can also be higher from wherein selection quality
Image synthesized.
Embodiment 5
When forming matrix, it is also necessary to guarantee that the ratio of article size that camera is shot in matrix dot in picture is closed
It is suitable, and shoot apparent.So during forming matrix, camera needs to carry out zoom and focusing in matrix dot.
(1) zoom
After camera photographic subjects object, object is estimated in the ratio of camera view, and be compared with predetermined value.It is excessive
Or it is too small require carry out zoom.Zooming method can be with are as follows: using additional gearshift image collecting device 201 diameter
Image collecting device 201 is moved up, allows image collecting device 201 close to or far from target object, to guarantee
Each matrix dot, object accounting holding in picture are basically unchanged.
Further include range unit, the real-time range (object distance) that image collecting device 201 arrives object can be measured.It can be by object
It is tabulating away from, accounting, focal length triadic relation data of the object in picture, according to focal length, object accounting in picture
Size more right than determining object distance of tabling look-up, so that it is determined that matrix dot.
In some cases, change in the region of different matrix dot objects or object with respect to camera, can also pass through
Focal length is adjusted to realize that accounting of the object in picture is kept constant.
(2) auto-focusing
During forming virtual matrix, distance (object distance) h (x) of range unit real-time measurement camera to object, and
Measurement result is sent to image processing apparatus 100, image processing apparatus 100 looks into object distance-focal length table, finds corresponding focal length
Value, Xiang Xiangji 201 issue focusing signal, and control camera ultrasonic motor driving camera lens is mobile to carry out rapid focus.In this way, can be with
In the case where the position for not adjusting image collecting device 201 does not also adjust its lens focus significantly, rapid focus is realized,
Guarantee that image collecting device 201 shoots apparent.This is also one of inventive point of the invention.Certainly, in addition to distance measuring method into
Row can also focus to afocal by the way of picture contrast comparison.
Object can be a physical objects in the present invention, or multiple objects constituent.
The 3D information of object include 3D rendering, 3D point cloud, 3D grid, part 3D feature, 3D size and all with mesh
Mark the parameter of object 3D feature.
So-called 3D, three-dimensional refer to tri- directional informations of XYZ in the present invention, especially have depth information, and only
There is two-dimensional surface information that there is essential distinction.Also it is known as 3D, panorama, holography, three-dimensional with some, but actually only includes two-dimentional letter
Breath, does not especially include that the definition of depth information has essential distinction.
Pickup area described in the present invention refers to the range that image collecting device (such as camera) can be shot.
Image collecting device in the present invention can be CCD, CMOS, camera, video camera, industrial camera, monitor, camera shooting
Head, mobile phone, plate, notebook, mobile terminal, wearable device, smart glasses, smart watches, Intelligent bracelet and with figure
As acquisition function all devices.
For example, the iris information acquisition system of no-reflection uses commercially available industrial camera in a kind of specific embodiment
WP-UC2000, design parameter are as shown in the table:
Processor or controlling terminal use shelf computer, and such as Dell/ Dell Precision3530, design parameter is as follows:
Mechanical mobile device is using customization moving guide rail system TM-01, design parameter are as follows:
Holder: three axis holders reserve camera mechanical interface, computer control interface；
Guide rail: arc-shaped guide rail is mechanically connected with holder and cooperates；
Servo motor: brand: vertical dimension, model: 130-06025, nominal torque: 6Nm, encoder type: 2500 lines increase
Amount formula, wire length: 300cm, rated power: 1500W, voltage rating: 220V, rated current: 6A, rated speed: 2500rpm；
Control mode: it is controlled by PC control either other modes.
The 3D information for the object multiple regions that above embodiments obtain can be used for being compared, such as identity
Identification.The 3D information of human body face and iris is obtained first with the solution of the present invention, and is stored it in server, as
Normal data.When in use, operating such as needing to carry out authentication and paid, opened the door, 3D acquisition device can be used
It is compared the 3D information for acquiring and obtaining human body face and iris again with normal data, compare successfully then allow into
Row acts in next step.It is appreciated that this compare the identification that can be used for the fixtures such as antique, the art work, i.e., first obtain
Antique, art work multiple regions 3D information as normal data, when needing to identify, again obtain multiple regions 3D letter
Breath, and be compared with normal data, it discerns the false from the genuine.
The 3D information for the object multiple regions that above embodiments obtain can be used for designing for the object, production, make
Make mating object.For example, obtaining human body head 3D data, it can be human design, manufacture more particularly suitable cap；Obtain human body head
Portion's data and eyes 3D data can be human design, the suitable glasses of manufacture.
Above embodiments obtain object 3D information can be used for the geometric dimension to the object, appearance profile into
Row measurement.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as a separate embodiment of the present invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments in this include institute in other embodiments
Including certain features rather than other feature, but the combination of the feature of different embodiment means in the scope of the present invention
Within and form different embodiments.For example, in detail in the claims, the one of any of embodiment claimed all may be used
Come in a manner of in any combination using.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice
Microprocessor or digital signal processor (DSP) are according to an embodiment of the present invention biological special based on Visible Light Camera to realize
Levy some or all functions of some or all components in 4 D data acquisition device.The present invention is also implemented as using
In executing some or all device or device programs of method as described herein (for example, computer program and meter
Calculation machine program product).It is such to realize that program of the invention can store on a computer-readable medium, or can have one
The form of a or multiple signals.Such signal can be downloaded from an internet website to obtain, or mention on the carrier signal
For, or be provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (12)
1. a kind of iris information measuring system based on light control, it is characterised in that: including
Light source, for providing illumination to iris；
Acquisition device, for acquiring iris information；
Control device, for control open and close light source, and light source close simultaneously or after, pupil be restored to predefined size
Preceding control acquisition device acquires iris information；
Measuring device measures its size according to iris information；
Acquisition device is image collecting device, for providing pickup area, acquires iris image；
Image collecting device obtains the image of the different directions of iris from multiple pickup areas；
The position of image collecting device at least meets two neighboring position and at least conforms to following condition when acquiring multiple images:
H* (1-cosb)=L*sin2b；
A=m*b；
0<m<0.8；
Wherein L is distance of the image collecting device to object, and H is object actual size in acquired image, and a is adjacent
Two location drawing picture acquisition device optical axis included angles, m is coefficient.
2. the iris information measuring system based on light control as described in claim 1, it is characterised in that: the light source is single
Light source or multiple light courcess.
3. the iris information measuring system based on light control as described in claim 1, it is characterised in that: further include at image
Device is managed, for multiple images to be synthesized to the 3D information of iris.
4. the iris information measuring system based on light control as described in claim 1, it is characterised in that: acquisition multiple images
When image collecting device adjacent three positions meet three images acquiring on corresponding position and at least exist and indicate target
The part of object the same area.
5. a kind of iris information acquisition system based on light control, it is characterised in that: including
Light source, for providing illumination to iris；
Acquisition device, for acquiring iris information；
Control device, for control open and close light source, and light source close simultaneously or after, pupil be restored to predefined size
Preceding control acquisition device acquires iris information；
Acquisition device is image collecting device, for providing pickup area, acquires iris image；
Image collecting device obtains the image of the different directions of iris from multiple pickup areas；
The position of image collecting device at least meets two neighboring position and at least conforms to following condition when acquiring multiple images:
H* (1-cosb)=L*sin2b；
A=m*b；
0<m<0.8；
Wherein L is distance of the image collecting device to object, and H is object actual size in acquired image, and a is adjacent
Two location drawing picture acquisition device optical axis included angles, m is coefficient.
6. the iris information acquisition system based on light control as claimed in claim 5, it is characterised in that: the light source is single
Light source or multiple light courcess.
7. the iris information acquisition system based on light control as claimed in claim 5, it is characterised in that: further include at image
Device is managed, for multiple images to be synthesized to the 3D information of iris.
8. the iris information acquisition system based on light control as claimed in claim 5, it is characterised in that: acquisition multiple images
When image collecting device adjacent three positions meet three images acquiring on corresponding position and at least exist and indicate target
The part of object the same area.
9. a kind of iris information acquisition method, it is characterised in that:
Light source is opened, provides illumination to iris；
Light source is closed after myosis；
While closing light source or later, control acquisition device acquires iris information before pupil size restores；
Acquisition device is image collecting device, for providing pickup area, acquires iris image；
Image collecting device obtains the image of the different directions of iris from multiple pickup areas；
The position of image collecting device at least meets two neighboring position and at least conforms to following condition when acquiring multiple images:
H* (1-cosb)=L*sin2b；
A=m*b；
0<m<0.8；
Wherein L is distance of the image collecting device to object, and H is object actual size in acquired image, and a is adjacent
Two location drawing picture acquisition device optical axis included angles, m is coefficient.
10. iris information acquisition method as claimed in claim 9, it is characterised in that: the light source is single light source or multiple light courcess.
11. iris information acquisition method as claimed in claim 9, it is characterised in that: further include image processing apparatus, being used for will
Multiple images synthesize the 3D information of iris.
12. iris information acquisition method as claimed in claim 9, it is characterised in that: image collector when acquisition multiple images
Adjacent three positions set meet three images acquired on corresponding position and at least there is expression object the same area
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213084.1A CN109394168B (en) | 2018-10-18 | 2018-10-18 | A kind of iris information measuring system based on light control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213084.1A CN109394168B (en) | 2018-10-18 | 2018-10-18 | A kind of iris information measuring system based on light control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109394168A CN109394168A (en) | 2019-03-01 |
| CN109394168B true CN109394168B (en) | 2019-10-22 |
Family
ID=65468386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811213084.1A Active CN109394168B (en) | 2018-10-18 | 2018-10-18 | A kind of iris information measuring system based on light control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109394168B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661960B (en) * | 2019-10-30 | 2022-01-25 | Oppo广东移动通信有限公司 | Camera module and electronic equipment |
| CN111310661B (en) * | 2020-02-17 | 2021-03-12 | 天目爱视（北京）科技有限公司 | Intelligent 3D information acquisition and measurement equipment for iris |
| CN111325780B (en) * | 2020-02-17 | 2021-07-27 | 天目爱视（北京）科技有限公司 | 3D model rapid construction method based on image screening |
| CN111207690B (en) * | 2020-02-17 | 2021-03-12 | 天目爱视（北京）科技有限公司 | Adjustable iris 3D information acquisition measuring equipment |
| CN111281337B (en) * | 2020-03-02 | 2023-03-14 | 南方科技大学 | Image acquisition equipment and fundus retina imaging method based on image acquisition equipment |
| CN112200113B (en) * | 2020-10-21 | 2022-08-16 | 天津中科智能识别产业技术研究院有限公司 | Self-adaptive light source device |
| CN113486862B (en) * | 2021-08-04 | 2024-03-22 | 河南华辰智控技术有限公司 | Financial safety protection system based on biological recognition technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004042646A1 (en) * | 2002-11-05 | 2004-05-21 | Joh. Enschede B.V. | Iris detection |
| CN103020612A (en) * | 2013-01-05 | 2013-04-03 | 南京航空航天大学 | Device and method for acquiring iris images |
| CN207037685U (en) * | 2017-07-11 | 2018-02-23 | 北京中科虹霸科技有限公司 | One kind illuminates adjustable iris collection device |
| CN108446596A (en) * | 2018-02-14 | 2018-08-24 | 天目爱视（北京）科技有限公司 | Iris 3D 4 D datas acquisition system based on Visible Light Camera matrix and method |
| WO2018185744A1 (en) * | 2017-04-05 | 2018-10-11 | Koch Robin | A system and method for capturing an iris of a subject |
-
2018
- 2018-10-18 CN CN201811213084.1A patent/CN109394168B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004042646A1 (en) * | 2002-11-05 | 2004-05-21 | Joh. Enschede B.V. | Iris detection |
| CN103020612A (en) * | 2013-01-05 | 2013-04-03 | 南京航空航天大学 | Device and method for acquiring iris images |
| WO2018185744A1 (en) * | 2017-04-05 | 2018-10-11 | Koch Robin | A system and method for capturing an iris of a subject |
| CN207037685U (en) * | 2017-07-11 | 2018-02-23 | 北京中科虹霸科技有限公司 | One kind illuminates adjustable iris collection device |
| CN108446596A (en) * | 2018-02-14 | 2018-08-24 | 天目爱视（北京）科技有限公司 | Iris 3D 4 D datas acquisition system based on Visible Light Camera matrix and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109394168A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109394168B (en) | A kind of iris information measuring system based on light control | |
| CN109443199B (en) | 3D information measuring system based on intelligent light source | |
| CN109218702B (en) | Camera rotation type 3D measurement and information acquisition device | |
| CN110543871B (en) | Point cloud-based 3D comparison measurement method | |
| CN111060023B (en) | High-precision 3D information acquisition equipment and method | |
| CN109285109B (en) | A kind of multizone 3D measurement and information acquisition device | |
| CN110567370B (en) | Variable-focus self-adaptive 3D information acquisition method | |
| CN109146961A (en) | A kind of 3D measurement and acquisition device based on virtual matrix | |
| CN208653401U (en) | Adapting to image acquires equipment, 3D information comparison device, mating object generating means | |
| CN209279885U (en) | Image capture device, 3D information comparison and mating object generating means | |
| CN208795174U (en) | Camera rotation type image capture device, comparison device, mating object generating means | |
| CN211178345U (en) | Three-dimensional acquisition equipment | |
| CN111006586B (en) | Intelligent control method for 3D information acquisition | |
| CN109146949B (en) | A kind of 3D measurement and information acquisition device based on video data | |
| CN109394170B (en) | A kind of iris information measuring system of no-reflection | |
| CN109084679B (en) | A kind of 3D measurement and acquisition device based on spatial light modulator | |
| CN208653473U (en) | Image capture device, 3D information comparison device, mating object generating means | |
| CN209103318U (en) | A kind of iris shape measurement system based on illumination | |
| CN208795167U (en) | Illumination system for 3D information acquisition system | |
| CN209203221U (en) | A kind of iris dimensions measuring system and information acquisition system based on light control | |
| CN111207690B (en) | Adjustable iris 3D information acquisition measuring equipment | |
| CN213072921U (en) | Multi-region image acquisition equipment, 3D information comparison and matching object generation device | |
| CN209279884U (en) | Image capture device, 3D information comparison device and mating object generating means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |