CN108206904A - Image capture device, eyes image collecting device and method - Google Patents
Image capture device, eyes image collecting device and method Download PDFInfo
- Publication number
- CN108206904A CN108206904A CN201711257579.XA CN201711257579A CN108206904A CN 108206904 A CN108206904 A CN 108206904A CN 201711257579 A CN201711257579 A CN 201711257579A CN 108206904 A CN108206904 A CN 108206904A
- Authority
- CN
- China
- Prior art keywords
- light
- unit
- polarization
- image
- polarization unit
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- 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
- H04N23/50—Constructional details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Eye Examination Apparatus (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The embodiment of the present application provides a kind of image capture device, eyes image collecting device and method, which includes：Image collecting device and light compensating apparatus；Wherein, image collecting device includes：First polarization unit and camera unit；First polarization unit is arranged in the input path of camera unit, for the incident light of directive camera unit to be carried out light transmission processing, obtains the first polarised light；Above-mentioned light compensating apparatus includes：Supplementary lighting sources and the second polarization unit；Second polarization unit is arranged on the emitting light path of supplementary lighting sources, and the compensation light for supplementary lighting sources to be projected carries out light transmission processing, obtains the second polarised light.
Description
Technical field
This application involves a kind of Image Acquisition field more particularly to image capture device, eyes image collecting device and sides
Method.
Background technology
With the continuous development of image acquisition technology, Image Acquisition has been widely used in every field, for example, branch
Pay, authentication, monitoring etc..When carrying out Image Acquisition, the ambient light in reference object ambient enviroment can be irradiated to shooting pair
As upper, since reference object is to the reflection of ambient light, the reflected light of generation there are a variety of polarization directions, certain polarization directions it is anti-
Light is penetrated as interference light, causes the image effect shot bad.Also, when using compensation light, compensation illumination is mapped to shooting pair
As upper, stimulation can be generated to reference object.
It is, therefore, desirable to provide a kind of image capture device, to reduce or eliminate interference light, improves shooting effect and reduction pair
The stimulation of reference object.
Invention content
The purpose of the embodiment of the present application is to provide a kind of image capture device, eyes image collecting device and method, passes through
First polarization unit in the input path of camera unit is set, the incident light for injecting camera unit is subjected to light transmission processing, is obtained
To the first polarised light, the influence that interference light generates shooting can be eliminated, improves shooting effect；By being arranged on supplementary lighting sources
The compensation light of supplementary lighting sources transmitting is carried out light transmission processing, obtains the second polarised light, drop by the second polarization unit on emitting light path
The low stimulation to reference object.
In order to solve the above technical problems, what the embodiment of the present application was realized in：
The embodiment of the present application provides a kind of image capture device, including：Image collecting device and light compensating apparatus；
Described image harvester includes：First polarization unit and camera unit；First polarization unit is set to institute
It states in the input path of camera unit, for the incident light of camera unit described in directive to be carried out light transmission processing, obtains first partially
Shake light；
The light compensating apparatus includes：Supplementary lighting sources and the second polarization unit；Second polarization unit is set to the benefit
On the emitting light path of radiant, the compensation light for the supplementary lighting sources to be projected carries out light transmission processing, obtains the second polarised light.
The embodiment of the present application additionally provides a kind of eyes image collecting device, including：Eyes image harvester and light filling
Device；
The eyes image harvester includes：First polarization unit and eye camera unit；First polarization unit
It is set in the input path of the eye camera unit, for the incident light of camera unit described in directive to be carried out at light transmission
Reason, obtains the first polarised light；
The light compensating apparatus includes：Supplementary lighting sources and the second polarization unit；Second polarization unit is set to the benefit
On the emitting light path of radiant, the compensation light for the supplementary lighting sources to be projected carries out light transmission processing, obtains the second polarised light.
The embodiment of the present application additionally provides a kind of eyes image acquisition method, including：
The relative position of reference object ocular, the first polarization unit and eye camera unit is adjusted, so that first
The light that polarization unit reflects reference object ocular carries out light transmission processing, and treated that the first polarised light is projected to for light transmission
Eye camera unit；And
The relative position of the second polarization unit and supplementary lighting sources is adjusted, so that second polarization unit is to supplementary lighting sources
Emergent light carry out light transmission processing, and the ocular of light transmission treated the second polarised light is projected to reference object；
The light-transmission angles of second polarization unit and first polarization unit are adjusted to unanimously.
Technical solution in through this embodiment sets the first polarization unit in the input path of camera unit, will penetrate
The incident light for entering camera unit carries out light transmission processing, obtains the first polarised light, can eliminate the influence that interference light generates shooting,
Improve shooting effect；Second polarization unit is set on the emitting light path of supplementary lighting sources, by supplementary lighting sources transmitting compensation light into
Row light transmission is handled, and is obtained the second polarised light, is reduced the stimulation to reference object.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or it will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of image capture device provided by the embodiments of the present application；
Fig. 2 is the rotation schematic diagram of the first polarization unit in eyes image collecting device provided by the embodiments of the present application；
Fig. 3 (a) is in eyes image collecting device provided by the embodiments of the present application, and unit is adjusted to first by reflectance
The eyes image that polarization unit acquires before adjusting；
Fig. 3 (b) is in eyes image collecting device provided by the embodiments of the present application, and unit is adjusted to first by reflectance
The eyes image that polarization unit acquires after adjusting；
Fig. 4 is the structure diagram of eyes image collecting device provided by the embodiments of the present application；
Fig. 5 is the method flow diagram of eyes image acquisition method provided by the embodiments of the present application.
Fig. 6 is the second method flow chart of eyes image acquisition method provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
Technical staff's all other embodiments obtained without creative efforts should all belong to the application protection
Range.
The embodiment of the present application provides a kind of image capture device, the image capture device can be applied to every field into
Row Image Acquisition.For example, applied to face payment technical field, the acquisition of facial image is carried out；Applied to authentication field, carry out
The acquisition of facial image, eyes image etc.；Image Acquisition etc. is carried out applied to monitoring field.
Fig. 1 is the structure diagram of image capture device provided by the embodiments of the present application, as shown in Figure 1, the equipment includes：
Image collecting device 110 and light compensating apparatus 120；
Image collecting device 110 includes：First polarization unit 111 and camera unit 112, the first polarization unit 111 are set
In in the input path of camera unit 112, for the incident light of directive camera unit 112 to be carried out light transmission processing, first is obtained
Polarised light；
Light compensating apparatus 120 includes：121 and second polarization unit 122 of supplementary lighting sources, the second polarization unit 122 are set to benefit
On the emitting light path of radiant 121, the compensation light for supplementary lighting sources 121 to be projected carries out light transmission processing, obtains the second polarization
Light.
Wherein, the first polarization unit 111 and the second polarization unit 112 can allow the light consistent with its polarization direction to lead to
It crosses, filters out the light inconsistent with its polarization direction.
Specifically, above-mentioned first polarization unit 111 can be polarizer, polarizing coating or polarization filter etc., likewise, on
It can be polarizer, polarizing coating or polarization filter etc. to state the second polarization unit 122.
Preferably, above-mentioned first polarization unit is polarizer, and above-mentioned second polarization unit is polarizing coating.
Above-mentioned camera unit 112 can be the image capture devices such as camera, camera, eyepiece.
Ambient light in reference object local environment can be irradiated on reference object, which is non-polarized light, is irradiated
Ambient light on to reference object reflects on reference object, and reflected light remains as non-polarized light, and what is obtained after reflection is non-
Polarised light there are many direction of vibration, wherein, the light of some direction of vibration is unfavorable for camera unit 112 and is imaged, to interfere light.
In the embodiment of the present application, the first polarization unit 111, the first polarization unit 111 are provided in the input path of camera unit 112
The identical light of its direction of vibration can be conveyed to pass through.Wherein it is possible to some vibration needed when being and camera unit 112 being allowed to shoot
The light in direction penetrates, and obtains the first polarised light, and the first polarised light injects camera unit, and reference object is formed in camera unit
Image, in this way, influence of the interference light in reducing or eliminating the reflected light for shooting object to Image Acquisition, it is single to improve camera shooting
The shooting quality of member.
In some concrete application scenes, for example, in the case of ambient light is insufficient, in order to improve shooting quality, obtain
Clearer shooting picture generally when carrying out Image Acquisition, can carry out light filling, still, in reference object by supplementary lighting sources
In the case of people, supplementary lighting sources are irradiated on reference object, can generate stimulation to reference object, reference object is caused to be not suitable with
Deng, therefore, in order to reduce the stimulation that supplementary lighting sources generate reference object, in the embodiment of the present application, used compensation dress
It puts 120 and includes the second polarization unit 122, and the second polarization unit 122 is arranged on the emitting light path of supplementary lighting sources 121.
In the embodiment of the present application, the second polarization unit 122 can carry out light transmission to the compensation light that supplementary lighting sources 121 project
Processing, obtains the second polarised light, it is possible to reduce stimulation of the compensation light to reference object.
In order to enable it can be absorbed after the reflection of the second polarised light subject by camera unit, in the embodiment of the present application
In, the light-transmission angles of the first polarization unit and the second polarization unit are identical.
In addition, in the embodiment of the present application, since the area of compensatory light 121 is larger, in the embodiment of the present application
The size of used second polarization unit 122 and the size of compensatory light 121 match.
The setting of the first polarization unit and the second polarization unit in the embodiment of the present application has following several specific implementations
Mode：
The light-transmission angles of (1) first polarization unit and the second polarization unit are adjusted.
Wherein, the first polarization unit can be in the plane internal rotation vertical with the incident light for injecting camera unit, and first partially
Shake unit rotation schematic diagram as shown in Fig. 2, specifically, the first polarization unit can rotate clockwise in above-mentioned plane,
It can counterclockwise be rotated in above-mentioned plane.
Likewise, the second polarization unit can in the vertical plane internal rotation of compensation light with injecting reference object, certainly,
The direction of rotation of second polarization unit can be clockwise, can also be counterclockwise.
It, can be by adjusting first partially when carrying out Image Acquisition using image capture device provided by the embodiments of the present application
Shake the light-transmission angles of unit and the light-transmission angles of the second polarization unit so that the light-transmission angles of the first polarization unit and the second polarization
The light-transmission angles of unit are identical.
(2) first polarization units are fixedly installed on predetermined angle in the input path of camera unit 112, and the second polarization is single
The light-transmission angles of member 122 are adjusted.
In this kind of embodiment, the light-transmission angles of the first polarization unit 111 are unadjustable, using the embodiment of the present application
It, can be by rotating the second polarization unit, with to the second polarization unit when the image capture device of offer carries out Image Acquisition
Light-transmission angles are adjusted so that the light-transmission angles of the light-transmission angles of the second polarization unit and the first polarization unit are identical.
The light-transmission angles of (3) first polarization units are adjusted, and the second polarization unit is fixedly installed on light filling with predetermined angle
On the emitting light path of light source 121.
In this kind of embodiment, the light-transmission angles of the second polarization unit are fixed, it is not possible to are adjusted, used this Shen
Please embodiment provide image capture device carry out Image Acquisition when, can by rotating the first polarization unit, with to first partially
The light-transmission angles of unit of shaking are adjusted so that the light-transmission angles phase of the light-transmission angles of the first polarization unit and the second polarization unit
Together.
(4) first polarization units are fixedly installed on predetermined angle in the input path of camera unit, the second polarization unit
It is fixedly installed on the emitting light path of supplementary lighting sources with predetermined angle, and the light transmission angle of the first polarization unit and the second polarization unit
It spends identical.
In this kind of embodiment, the light-transmission angles of the first polarization unit and the second polarization unit are unadjustable.Into
During the assembling of row image capture device, then the light-transmission angles of the first polarization unit and the second polarization unit are adjusted to suitable saturating
Angular, also, the light-transmission angles of the first polarization unit after adjusting and the light-transmission angles of the second polarization unit are identical, according to tune
First polarization unit is fixed in the input path of camera unit by the light-transmission angles after section, according to the light transmission angle after adjusting
Second polarization unit is fixed on the emitting light path of supplementary lighting sources by degree.
In addition, under the application scenarios of many high precision images identification, such as the application scenarios that eyeprint identifies, photographer's eyeball
It may be there are the areas of specular reflection of larger area, such as tears aggregation zone, when the reflectance in these regions is higher, camera shooting
The image in the collected region of unit also will appear the blind area of None- identified, such as highlighted white area, thus may
Lead to eyeprint None- identified.
Based on above-mentioned consideration, in the embodiment of the present application, above-mentioned image collecting device 110 further includes：Reflectance adjusts single
Member；
Above-mentioned reflectance adjusts unit, for determining the reflectance of the image of the acquisition of camera unit 112 in real time, according to determining
Reflectance adjust the first polarization unit 111 light-transmission angles so that camera unit 112 is in current location the image collected
Reflectance it is minimum.
Above-mentioned reflectance adjusts unit, is specifically used for, the light transmission angle of the first polarization unit is continuously adjusted along assigned direction
Degree, and the reflectance for the image that camera unit 112 acquires is obtained in real time；It is persistently reduced if judging the reflectance of above-mentioned image,
Then after renew determine direction adjust the first polarization unit 111 light-transmission angles, until above-mentioned reflectance no longer reduces.
Wherein, above-mentioned assigned direction can be clockwise direction or counter clockwise direction, and user can be according to oneself
It is selected according to currently practical.
In the embodiment of the present application, the reflectance for the image that camera unit 112 acquires can be determined by following process：It is right
The image that camera unit 112 acquires carries out binary conversion treatment, obtains the binary image of the image；It counts on the binary image
High luminance pixel number, the number of the high luminance pixel on the binary image is more, then illustrates the reflectance of the image
It is higher.Wherein, high luminance pixel refers to the pixel that gray value is 1.
In a kind of specific embodiment, camera unit 112 acquires the image of reference object, and the image of acquisition is sent
Unit is adjusted to reflectance, reflectance adjusts the reflectance that unit determines the image, and controls the first polarization unit 111 according to suitable
Clockwise rotates, and during the first polarization unit of reflectance adjusting unit control 111 is right handed, camera shooting is single
The image of the constantly acquisition reference object of member 112, and the image is sent to reflectance and adjusts unit, reflectance adjusts unit and determines
The reflectance of the image, and the reflectance of the image and the reflectance of upper piece image are compared.
If compared to the reflectance of upper piece image, the reflectance of the image reduces, then continues according to clockwise
The first polarization unit 111 is rotated, to adjust the light-transmission angles of the first polarization unit, until 112 collected camera shooting of camera unit
Until the reflectance of the image of object no longer reduces；
If compared to the reflectance of upper piece image, the reflectance of the image increases, then adjusts the first polarization unit
Rotation angle, the first polarization unit 111 of control are rotated according to counter clockwise direction, until the collected camera shooting pair of camera unit 112
Until the reflectance of the image of elephant no longer reduces.
Wherein, it during unit being adjusted by reflectance, the light transmittance of the first polarization unit is adjusted, needs
Ensure that position, the parameter of other units in image capture device etc. are constant.
In the embodiment of the present application, the light-transmission angles of unit the first polarization unit of constantly regulate are adjusted by reflectance, it can
So that the reflectance of the image of acquisition is minimum, the blind area in the image for even eliminating acquisition can be reduced.Passing through reflectance
It adjusts unit to adjust shown in the eyes image such as Fig. 3 (a) acquired before the light transmittance of the first polarization unit, is passing through reflectance tune
Unit is saved to adjust shown in the eyes image such as Fig. 3 (b) acquired after the light transmittance of the first polarization unit.From Fig. 3 (a) and Fig. 3 (b)
Comparison in as can be seen that the blind area of eye reduces in Fig. 3 (b).
In embodiments of the present invention, the light-transmission angles of unit the first polarization unit of adjusting are adjusted by reflectance, are realized
The automatic adjustment of the light-transmission angles of first polarization unit, also, the precision adjusted is higher, meanwhile, also improve Image Acquisition
Precision.
By above-mentioned introduction it is found that the embodiment of the present application is by carrying out at optical filtering supplementary lighting sources using the second polarization unit
Reason so that in the light that supplementary lighting sources are sent out, only the polarised light of special angle can be radiated at shooting by the second polarization unit
On object, and the light filling other than the special angle is filtered out, can be greatly lowered the light stimulus to the eye of reference object, and by
It is not reduced in the intensity of the polarised light for the special angle for being radiated at reference object, therefore, camera unit is with identical transmission
The polarised light of the special angle of angular acceptance reference object reflection so that the accuracy of the image of acquisition does not reduce, and remains to
Ensureing the picture of shooting has very high accuracy.The embodiment of the present application requires pinpoint accuracy Image Acquisition for eye recognition etc.
Scene, on the one hand can reduce the eye light stimulus to reference object, on the other hand also ensure that the accuracy of Image Acquisition.
The reference object mentioned in the embodiment of the present application can be the biology of photaesthesia, such as people, animal either people, dynamic
The regional area of object or can also be photaesthesia object, for example, artistic work etc..
Image capture device provided by the embodiments of the present application sets the first polarization single in the input path of camera unit
The incident light for injecting camera unit is carried out light transmission processing, obtains the first polarised light, can eliminated interference light and shooting is generated by member
Influence, improve shooting effect；Second polarization unit is set on the emitting light path of supplementary lighting sources, the benefit that supplementary lighting sources are emitted
It repays light and carries out light transmission processing, the second polarised light is obtained, so as to reduce the stimulation to reference object.
Based on the thinking identical with the image capture device that above-described embodiment provides, the embodiment of the present application additionally provides one kind
Eyes image collecting device, the eyes image collecting device are mainly used for acquiring the eye figure of the reference objects such as people or animal
Picture can be applied in the fields such as payment, authentication.Fig. 4 is the structure of image capture device provided by the embodiments of the present application
Schematic diagram for equipment shown in Fig. 4, introduces the difference with the image capture device in above-described embodiment here,
Something in common can refer to the description in above-mentioned image capture device embodiment, and which is not described herein again.As shown in figure 4, the equipment
Including：Eyes image harvester 310 and light compensating apparatus 320；
Eyes image harvester 310 includes：First polarization unit 311 and eye camera unit 312；First polarization unit
311 are set in the input path of eye camera unit 312, saturating for the incident light of directive eye camera unit 312 to be carried out
Light processing obtains the first polarised light；
Light compensating apparatus 320 includes：321 and second polarization unit 322 of supplementary lighting sources；Second polarization unit 322 is set to benefit
On the emitting light path of radiant 321, the compensation light for supplementary lighting sources 321 to be projected carries out light transmission processing, obtains the second polarization
Light.
Above-mentioned first polarization unit, 311 and second polarization unit 322 may each be polarizer, polarizing coating, polarized lens etc..
In a kind of specific embodiment, it is preferred that above-mentioned first polarization unit 311 is polarizer, above-mentioned second polarization
Unit 322 is polarizing coating.
In addition, due in the eyes image for acquiring people, supplementary lighting sources are radiated at the ocular of people, and supplementary lighting sources can be right
The ocular of people generates stimulation.It is since green light is smaller to the stimulation of human eye, i.e., smaller to the injury of human eye generation.Cause
This, in the embodiment of the present application, when above-mentioned eye camera unit 312 is eyeprint collecting unit；Correspondingly, above-mentioned light compensating apparatus
320 are used to project green polarized light.
Above-mentioned eyeprint collecting unit is mainly used for acquiring the texture of the white of the eye part in reference object eyes, such as vascular lake
Deng.
In the embodiment of the present application, it can realize that light compensating apparatus 320 is penetrated by using certain types of second polarization unit
The polarised light gone out is green polarized light.
Under certain application scenarios, such as authentication etc., it may be necessary to acquire the iris feature of reference object, use
During the iris feature of reference object, generally require using infrared light.In the prior art, infrared lamp or infrared photography are generally used
First-class special hardware carries out the acquisition of iris feature, must be equipped with special hardware in this way, on the one hand may be cumbersome, separately
Outside, it is higher to may result in cost.Therefore, in the embodiment of the present application, when above-mentioned eye camera unit 312 is that iris camera shooting is single
When first；Correspondingly, light compensating apparatus 320 is used to project polarized infrared light.
In the embodiment of the present application, can light compensating apparatus can be realized by using certain types of second polarization unit
320 polarised lights projected are polarized infrared light, are avoided using infrared lamp or the first-class special hardware of infrared photography, it is only necessary to select
Select suitable second polarization unit.
In the eyes image for using eyes image collecting device acquisition reference object, the bat to eye camera unit is needed
It takes the photograph focus to be adjusted, so that eye camera unit can take clearly eyes image, in order to avoid passing through artificial side
Formula adjusts the shooting focus of eye camera unit, and in the embodiment of the present application, above-mentioned eyes image harvester 310 further includes：
Eye focusing unit；
Above-mentioned eye focusing unit for the reference object image acquired according to eye camera unit, adjusts eye camera shooting
The shooting focus of unit is shot focus focusing in the ocular of reference object.
In a kind of specific embodiment, the shooting focus of following procedure regulation eye camera unit can be passed through：
The image of reference object is acquired by eye camera unit, and the image of the reference object of acquisition is divided into multiple
Region determines the clarity in each region, the corresponding clarity in each region is compared, by clarity highest one respectively
A region is determined as the shooting focus of current eye camera unit.Eye focusing unit, according to clarity, highest region institute is right
Relative position relation between the position for the reference object answered and ocular, by eye area of the shooting focus towards reference object
Domain is adjusted.
In order to improve the accuracy of the shooting focus of eye camera unit focusing, in embodiments of the present invention, in eye pair
Burnt unit can constantly acquire the bat of current camera unit acquisition during the shooting focus for adjusting eye camera unit
The image of object is taken the photograph, constantly adjusts adjusting direction of the eye focusing unit to the shooting focus of eye camera unit.
In addition, in order to acquire clearly eyes image, in embodiments of the present invention, above-mentioned eye camera unit 312 can be with
Camera, camera for selecting clarity higher etc..
Eyes image collecting device provided by the embodiments of the present application, first is set in the input path of eye camera unit
The incident light for injecting eye camera unit is carried out light transmission processing, obtains the first polarised light, can eliminate interference light by polarization unit
To the influence that shooting generates, shooting effect is improved；Second polarization unit is set on the emitting light path of supplementary lighting sources, by light filling light
The compensation light of source transmitting carries out light transmission processing, obtains the second polarised light, so as to reduce stimulation of the compensation light to reference object eyes.
Eyes image collecting device based on shown in Fig. 4, the embodiment of the present application additionally provide a kind of eyes image acquisition side
Method, applied to eyes image collecting device shown in Fig. 4, Fig. 5 shows eyes image acquisition side provided by the embodiments of the present application
The method flow diagram of method in Figure 5, includes the following steps：
S402, the relative position of adjustment reference object ocular, the first polarization unit and eye camera unit, so that
The light that first polarization unit reflects reference object ocular carries out light transmission processing, and treated that the first polarised light is thrown for light transmission
It is incident upon eye camera unit；
S404 adjusts the relative position of the second polarization unit and supplementary lighting sources, so that the second polarization unit is to light filling light
The emergent light in source carries out light transmission processing, and the ocular of light transmission treated the second polarised light is projected to reference object.
Wherein, the emergent light of above-mentioned supplementary lighting sources refers to the compensation light that supplementary lighting sources are launched.
The light-transmission angles of second polarization unit and the first polarization unit are adjusted to unanimously by S406.
Specifically, the relative position in adjustment reference object ocular, the first polarization unit and eye camera unit refers to
Mark, method provided by the embodiments of the present application further include following steps (a) and step (b)；
The reflectance of step (a), the in real time image of determining camera unit acquisition；
Step (b), the light-transmission angles that the first polarization unit is adjusted according to determining reflectance, so that camera unit is being worked as
The reflectance of front position the image collected is minimum.
In the embodiment of the present application, the detailed process of the reflectance of the image of above-mentioned determining camera unit acquisition includes：It is right
The image of camera unit acquisition carries out binary conversion treatment, obtains the binary image of the image；It counts on the binary image
The number of high luminance pixel, the number of the high luminance pixel on the binary image is more, then illustrates that the reflectance of the image is got over
It is high.Wherein, high luminance pixel refers to the pixel that gray value is 1.
Specifically, above-mentioned steps (a) and step (b) are to adjust unit by the reflectance in eyes image collecting device to hold
Capable.Wherein, which adjusts unit and can be set in the eyes image harvester on eyes image collecting device.
In the embodiment of the present application, in above-mentioned steps (b), the light-transmission angles of the first polarization unit are adjusted, so that eye
The reflectance of the image of camera unit acquisition is minimum, specifically includes：
The light-transmission angles of the first polarization unit are continuously adjusted along assigned direction, and obtain the acquisition of eye camera unit in real time
Image reflectance；It is persistently reduced if judging the reflectance of above-mentioned image, continues to adjust first along above-mentioned assigned direction
The light-transmission angles of polarization unit, until reflectance no longer reduces.
In a kind of specific embodiment, eye camera unit acquires the image of reference object, and the image of acquisition is sent out
It gives reflectance and adjusts unit, reflectance adjusts the reflectance that unit determines the image, and controls the first polarization unit according to suitable
Clockwise rotates, during reflectance adjusting unit controls the first polarization unit right handed, eye camera shooting
Unit constantly acquires the image of reference object, and the image is sent to reflectance and adjusts unit, and reflectance adjusts unit and determines
The reflectance of the image, and the reflectance of the image and the reflectance of upper piece image are compared.
If compared to the reflectance of upper piece image, the reflectance of the image reduces, then continues according to clockwise
The first polarization unit is rotated, to adjust the light-transmission angles of the first polarization unit, until the collected camera shooting object of camera unit
Until the reflectance of image no longer reduces；
If compared to the reflectance of upper piece image, the reflectance of the image increases, then adjusts the first polarization unit
Rotation angle, the first polarization unit of control are rotated according to counter clockwise direction, until the figure of the collected camera shooting object of camera unit
Until the reflectance of picture no longer reduces.
Wherein, it during unit being adjusted by reflectance, the light transmittance of the first polarization unit is adjusted, needs
Ensure that position, the parameter of other units in image capture device etc. are constant.
In the embodiment of the present application, the light-transmission angles of unit the first polarization unit of constantly regulate are adjusted by reflectance, it can
So that the reflectance of the image of acquisition is minimum, the blind area in the image for even eliminating acquisition can be reduced.
Fig. 6 shows the second method flow chart of eyes image acquisition method provided by the embodiments of the present application, in Fig. 6
In, include the following steps：
S502, the relative position of adjustment reference object ocular, the first polarization unit and eye camera unit, so that
The light that first polarization unit reflects reference object ocular carries out light transmission processing, and treated that the first polarised light is thrown for light transmission
It is incident upon eye camera unit；
S504, the image of camera shooting object is acquired by eye camera unit, and the image of acquisition is sent to reflectance tune
Save unit；
S505, reflectance adjust the reflectance that unit determines the image of camera unit acquisition in real time；
S506, reflectance adjusts unit and the first polarization unit is controlled to be rotated along assigned direction, to adjust the first polarization unit
Light-transmission angles；
S510, for reflective regulation unit during the rotation of the first polarization unit is controlled, reflectance adjusts unit according to eye
The image of portion's camera unit acquisition determines the reflectance of above-mentioned image in real time；
S512 is persistently reduced if judging the reflectance of above-mentioned image, is continued along the first polarization of above-mentioned assigned direction rotation
The light-transmission angles of unit, until reflectance no longer reduces；
S514 adjusts the relative position of the second polarization unit and supplementary lighting sources, so that the second polarization unit is to light filling light
The emergent light in source carries out light transmission processing, and the ocular of light transmission treated the second polarised light is projected to reference object；
The light-transmission angles of first polarization unit and the second polarization unit are adjusted to unanimously by S516.
In step S516, the light-transmission angles for rotating the first polarization unit can be passed through so that the first polarization unit and the
The light-transmission angles of two polarization units are consistent.
Eyes image acquisition method provided by the embodiments of the present application, in the input path by being set to eye camera unit
On the first polarization unit, will inject eye camera unit incident light carry out light transmission processing, obtain the first polarised light, can disappear
Except the influence that interference light generates shooting, shooting effect is improved；It is inclined by be set on the emitting light path of supplementary lighting sources second
Shake unit, and the compensation light of supplementary lighting sources transmitting is carried out light transmission processing, obtains the second polarised light, so as to reduce compensation light to shooting
The stimulation of object eye.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Point just to refer each other, and the highlights of each of the examples are difference from other examples.Especially for system reality
For applying example, since it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
The foregoing is merely embodiments herein, are not limited to the application.For those skilled in the art
For, the application can have various modifications and variations.All any modifications made within spirit herein and principle are equal
Replace, improve etc., it should be included within the scope of claims hereof.
Claims (13)
1. a kind of image capture device, including：Image collecting device and light compensating apparatus；
Described image harvester includes：First polarization unit and camera unit；First polarization unit is set to described take the photograph
As unit input path on, for by the incident light of camera unit described in directive carry out light transmission processing, obtain the first polarised light；
The light compensating apparatus includes：Supplementary lighting sources and the second polarization unit；Second polarization unit is set to the light filling light
On the emitting light path in source, the compensation light for the supplementary lighting sources to be projected carries out light transmission processing, obtains the second polarised light.
2. the light-transmission angles of equipment according to claim 1, first polarization unit and second polarization unit are equal
It is adjustable.
3. equipment according to claim 1, first polarization unit is fixedly installed on the camera shooting list with predetermined angle
In the input path of member, the light-transmission angles of second polarization unit are adjusted；
Alternatively, the light-transmission angles of first polarization unit are adjusted, second polarization unit is fixedly installed with predetermined angle
In on the emitting light path of the supplementary lighting sources；
Alternatively, first polarization unit is fixedly installed on predetermined angle in the input path of the camera unit, described
Two polarization units are fixedly installed on the predetermined angle on the emitting light path of the supplementary lighting sources, and first polarization unit
It is identical with the light-transmission angles of second polarization unit.
4. equipment according to claim 1, described image harvester further includes：
Reflectance adjusts unit, for determining the reflectance of the image of the camera unit acquisition in real time, according to determining
Reflectance adjusts the light-transmission angles of first polarization unit, so that the camera unit is in current location the image collected
Reflectance it is minimum.
5. equipment according to claim 4,
The reflectance adjusts unit, for continuously adjusting the light-transmission angles of first polarization unit along assigned direction, and
The reflectance of the image of the camera unit acquisition is obtained in real time；It is persistently reduced if judging the reflectance of described image, after
The continuous light-transmission angles that first polarization unit is adjusted along the assigned direction, until the reflectance no longer reduces.
6. according to claim 1-5 any one of them equipment, first polarization unit is polarizer；Second polarization is single
Member is polarizing coating.
7. a kind of eyes image collecting device, including：Eyes image harvester and light compensating apparatus；
The eyes image harvester includes：First polarization unit and eye camera unit；The first polarization unit setting
In in the input path of the eye camera unit, for the incident light of eye camera unit described in directive to be carried out at light transmission
Reason, obtains the first polarised light；
The light compensating apparatus includes：Supplementary lighting sources and the second polarization unit；Second polarization unit is set to the light filling light
On the emitting light path in source, the compensation light for the supplementary lighting sources to be projected carries out light transmission processing, obtains the second polarised light.
8. equipment according to claim 7, the eyes image harvester further includes：Eye focusing unit；
The eye focusing unit for the reference object image acquired according to the eye camera unit, adjusts the eye
The shooting focus of camera unit is shot focus focusing in the ocular of the reference object.
9. equipment according to claim 7 or 8, the eye camera unit includes eyeprint collecting unit；
Correspondingly, the light compensating apparatus is used to project green polarized light.
10. equipment according to claim 7 or 8, the eye camera unit includes iris camera unit；
Correspondingly, the light compensating apparatus is used to project polarized infrared light.
11. a kind of eyes image acquisition method, the method includes：
The relative position of reference object ocular, the first polarization unit and eye camera unit is adjusted, so that the first polarization
The light that unit reflects reference object ocular carries out light transmission processing, and treated that the first polarised light is projected to eye for light transmission
Camera unit；And
The relative position of the second polarization unit and supplementary lighting sources is adjusted, so that second polarization unit goes out supplementary lighting sources
It penetrates light and carries out light transmission processing, and the ocular of light transmission treated the second polarised light is projected to reference object；
The light-transmission angles of second polarization unit and first polarization unit are adjusted to unanimously.
12. according to the method for claim 11, adjustment reference object ocular, the first polarization unit and eye camera shooting are single
After the relative position of member, the method further includes：
The reflectance of the image of the camera unit acquisition is determined in real time；
The light-transmission angles of first polarization unit are adjusted according to the determining reflectance, so that the camera unit is being worked as
The reflectance of front position the image collected is minimum.
13. the light-transmission angles of first polarization unit according to the method for claim 12, are adjusted, so that the eye
The reflectance of the image of camera unit acquisition is minimum, including：
The light-transmission angles of first polarization unit are continuously adjusted along assigned direction, and obtain the eye camera unit in real time
The reflectance of the image of acquisition；
It is persistently reduced if judging the reflectance of described image, continues to adjust first polarization unit along the assigned direction
Light-transmission angles, until the reflectance no longer reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711257579.XA CN108206904B (en) | 2017-12-04 | 2017-12-04 | Image acquisition device, eye image acquisition device and eye image acquisition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711257579.XA CN108206904B (en) | 2017-12-04 | 2017-12-04 | Image acquisition device, eye image acquisition device and eye image acquisition method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108206904A true CN108206904A (en) | 2018-06-26 |
| CN108206904B CN108206904B (en) | 2020-11-03 |
Family
ID=62604541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711257579.XA Active CN108206904B (en) | 2017-12-04 | 2017-12-04 | Image acquisition device, eye image acquisition device and eye image acquisition method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108206904B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900754A (en) * | 2018-08-27 | 2018-11-27 | 广州大学 | It is a kind of for eliminating the reflective photographic device of glasses mirror surface and its control method |
| CN109634027A (en) * | 2019-01-04 | 2019-04-16 | 广东智媒云图科技股份有限公司 | A kind of light-source brightness and the adjusting method and device of position |
| CN110532935A (en) * | 2019-08-26 | 2019-12-03 | 李清华 | A kind of high-throughput reciprocity monitoring system of field crop phenotypic information and monitoring method |
| CN110826451A (en) * | 2019-10-30 | 2020-02-21 | 北京无线电计量测试研究所 | Iris image acquisition device and acquisition method |
| CN117481835A (en) * | 2023-12-28 | 2024-02-02 | 华科精准（北京）医疗科技有限公司 | External vision mirror system |
| CN117481835B (en) * | 2023-12-28 | 2024-10-25 | 华科精准（北京）医疗科技有限公司 | External vision mirror system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742258A (en) * | 2010-07-21 | 2012-10-17 | 松下电器产业株式会社 | Image processing device |
| CN104345468A (en) * | 2013-07-25 | 2015-02-11 | 索尼公司 | Image pickup apparatus, image pickup method, and program |
| CN204559711U (en) * | 2015-03-27 | 2015-08-12 | 苏州华兴致远电子科技有限公司 | Image monitoring system |
| CN105738966A (en) * | 2016-02-18 | 2016-07-06 | 中国科学院长春光学精密机械与物理研究所 | Water surface glitter suppression device and observation camera |
| CN106210556A (en) * | 2016-08-05 | 2016-12-07 | 深圳市金立通信设备有限公司 | A kind of photographic method and terminal |
| CN106303267A (en) * | 2015-05-25 | 2017-01-04 | 北京智谷睿拓技术服务有限公司 | Image capture device and method |
| CN106650712A (en) * | 2017-03-20 | 2017-05-10 | 武汉虹识技术有限公司 | Iris recognition system |
| CN207460349U (en) * | 2017-12-04 | 2018-06-05 | 阿里巴巴集团控股有限公司 | Image capture device and eyes image collecting device |
-
2017
- 2017-12-04 CN CN201711257579.XA patent/CN108206904B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742258A (en) * | 2010-07-21 | 2012-10-17 | 松下电器产业株式会社 | Image processing device |
| CN104345468A (en) * | 2013-07-25 | 2015-02-11 | 索尼公司 | Image pickup apparatus, image pickup method, and program |
| CN204559711U (en) * | 2015-03-27 | 2015-08-12 | 苏州华兴致远电子科技有限公司 | Image monitoring system |
| CN106303267A (en) * | 2015-05-25 | 2017-01-04 | 北京智谷睿拓技术服务有限公司 | Image capture device and method |
| CN105738966A (en) * | 2016-02-18 | 2016-07-06 | 中国科学院长春光学精密机械与物理研究所 | Water surface glitter suppression device and observation camera |
| CN106210556A (en) * | 2016-08-05 | 2016-12-07 | 深圳市金立通信设备有限公司 | A kind of photographic method and terminal |
| CN106650712A (en) * | 2017-03-20 | 2017-05-10 | 武汉虹识技术有限公司 | Iris recognition system |
| CN207460349U (en) * | 2017-12-04 | 2018-06-05 | 阿里巴巴集团控股有限公司 | Image capture device and eyes image collecting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900754A (en) * | 2018-08-27 | 2018-11-27 | 广州大学 | It is a kind of for eliminating the reflective photographic device of glasses mirror surface and its control method |
| CN109634027A (en) * | 2019-01-04 | 2019-04-16 | 广东智媒云图科技股份有限公司 | A kind of light-source brightness and the adjusting method and device of position |
| CN110532935A (en) * | 2019-08-26 | 2019-12-03 | 李清华 | A kind of high-throughput reciprocity monitoring system of field crop phenotypic information and monitoring method |
| CN110826451A (en) * | 2019-10-30 | 2020-02-21 | 北京无线电计量测试研究所 | Iris image acquisition device and acquisition method |
| CN117481835A (en) * | 2023-12-28 | 2024-02-02 | 华科精准（北京）医疗科技有限公司 | External vision mirror system |
| CN117481835B (en) * | 2023-12-28 | 2024-10-25 | 华科精准（北京）医疗科技有限公司 | External vision mirror system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108206904B (en) | 2020-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207460349U (en) | Image capture device and eyes image collecting device | |
| CN108206904A (en) | Image capture device, eyes image collecting device and method | |
| CN105554384B (en) | Wearable device and image pickup method | |
| WO2016070781A1 (en) | Mobile terminal visible light and biometric identification combination opto-electronic imaging system and method | |
| CN102871643B (en) | The checkout equipment of taking pictures for main body optical fundus and detection module | |
| CN106295536B (en) | Self-adapting type iris identification device and the method for carrying out iris recognition using the device | |
| CN107194881B (en) | A kind of reflective method of removal image based on photometric stereo | |
| JP2015013031A (en) | Visual line detection device and visual line detection method | |
| CN104394306A (en) | Multi-channel multi-zone coated camera module and equipment for iris recognition | |
| CN103747183B (en) | Mobile phone shooting focusing method | |
| KR20110058773A (en) | In-camera based method of detecting defect eye with high accuracy | |
| CN1279774A (en) | Eye tracking apparatus | |
| KR20090113324A (en) | System and method for projection of subsurface structure onto an object's surface | |
| CN111198445B (en) | Equipment and method for light-splitting polarization imaging | |
| WO2011095026A1 (en) | Method and system for photography | |
| CN108566504A (en) | A kind of dual camera module, electronic equipment and its image acquiring method | |
| DE69118701D1 (en) | AUTOMATIC OPTIMIZATION OF PHOTOGRAPHIC EXPOSURE PARAMETERS BY DETERMINING AND EXPLOITING THE ADDITIONAL FREEDOM OF EXPOSURE OF THE SYSTEM | |
| CN115278098B (en) | Image shooting method, system and shooting device thereof | |
| CN208459748U (en) | A kind of film studio | |
| CN107302654A (en) | A kind of image pickup method and device | |
| CN102523379A (en) | Image shooting method under stroboscopic scene and method for processing stroboscopic images obtained by using image shooting method | |
| KR101987922B1 (en) | Automatic system for capturing image by controlling light cell actively | |
| CN102655565B (en) | Anti-red-eye portrait shooting system and method | |
| CN108737700A (en) | Photographic device | |
| CN106407964A (en) | Device and method using visible light source to collect iris and terminal device |
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 | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1255505 Country of ref document: HK |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20200922 Address after: Cayman Enterprise Centre, 27 Hospital Road, George Town, Grand Cayman, British Islands Applicant after: Innovative advanced technology Co.,Ltd. Address before: Cayman Enterprise Centre, 27 Hospital Road, George Town, Grand Cayman, British Islands Applicant before: Advanced innovation technology Co.,Ltd. Effective date of registration: 20200922 Address after: Cayman Enterprise Centre, 27 Hospital Road, George Town, Grand Cayman, British Islands Applicant after: Advanced innovation technology Co.,Ltd. Address before: A four-storey 847 mailbox in Grand Cayman Capital Building, British Cayman Islands Applicant before: Alibaba Group Holding Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |