CN107888906A - The detecting system of crosstalk, the detection method of crosstalk, storage medium and processor - Google Patents
The detecting system of crosstalk, the detection method of crosstalk, storage medium and processor Download PDFInfo
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Abstract
This application provides a kind of detecting system of crosstalk, the detection method of crosstalk, storage medium and processor.The detecting system of the crosstalk includes：Receiving plane, receiving plane be used to obtaining image that 3D display device shows with the preset distance of the display surface of image at projection；Image processing apparatus, crossfire value of the 3D display device at the preset distance with display surface is calculated for obtaining the projected image of the presumptive area on receiving plane, and according to projected image.The system will move without image capture device, it is possible to obtain the projection at preset distance, and then obtain projected image, the crosstalk information of image is calculated by the image information of projected image.The time spent using detecting system detection crossfire value is less so that detection efficiency is higher.
Description
Technical field
The application is related to 3D display field, in particular to a kind of detecting system of crosstalk, the detection method of crosstalk,
Storage medium and processor.
Background technology
Bore hole 3D display device is an important development direction of current display technology, the display can allow user without
The stereoscopic picture plane with Deep Canvas must be directly watched on a display screen by any auxiliary equipment can.
The main operational principle of this class display is with certain side by two width with continuous parallax information or multiple image
The pixel that case allows in display screen shows respectively, then again by beam splitter, such as lenticular sheet or slit grating,
This few width image is projected to different spaces with different angle respectively, by rational optical design, the left side of beholder can be allowed
Right eye is respectively received this few width image, and the image received due to right and left eyes is different and has continuous parallax information, so as to
To synthesize the picture with depth information in the brain.
The important indicator evaluated at present is right and left eyes cross-luma (hereinafter referred to as crosstalk), and the degree of strength of crosstalk is straight
The quality for having influence on the presentation of its stereoeffect is connect, the cross-interference issue of bore hole 3D display device is also that existing bore hole 3D display device is generally deposited
A problem.
Generally, it is the picture of left eye to be entered not completely into left eye, part to produce the main reason for crosstalk
Enter in right eye, i.e. crosstalk of the left eye to right eye；And/or the picture to enter right eye partly enters not completely into right eye
Enter into left eye, i.e. crosstalk of the right eye to left eye.
The equipment for being presently used for detecting the crosstalk of bore hole 3D display device is less, and conventional method is directly to use one or more
Individual camera is detecting the photic-energy transfer that projects of screen at screen certain position, as Application No. 201310329433.7,
201610146319.4 and 201610309640.X Chinese patent is disclosed one kind and shown using one camera to obtain bore hole 3D
Show the method for the screen exit photic-energy transfer of device；The Chinese patent of Application No. 201210201133.6 and 201210479003.9
Disclose one kind and watch condition, and then the method for obtaining space luminous energy distributed data using double camera simulation human eye.Above two
Method is to obtain crossfire value by the space luminous energy value on shooting acquisition certain position and then by calculation of crosstalk.
In above-mentioned two methods, camera is arranged at the crosstalk relevant information that current location can only be obtained in front of screen, and
The light energy distribution of bore hole 3D display device is in whole space, to obtain a range of crosstalk numerical value, it is necessary to by screen with
Camera carries out relative movement or rotation so that the time that detection process is spent is more, and detection efficiency is relatively low, also, wants
The cross-talk data arrived is more accurate, then needs the step value that relatively moves smaller, still, can so cause the time that detection expends more
More, crosstalk detection efficiency is lower.
The content of the invention
The main purpose of the application be to provide a kind of detecting system of crosstalk, the detection method of crosstalk, storage medium with
Processor, to solve the problems, such as that crosstalk detection system detectio of the prior art is less efficient.
To achieve these goals, according to the one side of the application, there is provided a kind of detecting system of crosstalk, the detection
System includes：Receiving plane, above-mentioned receiving plane are used to obtain image that 3D display device is shown in the pre- of the display surface with above-mentioned image
Projection at set a distance；Image processing apparatus, for obtaining the projected image of the presumptive area on above-mentioned receiving plane, and according to
Above-mentioned projected image calculates crossfire value of the above-mentioned 3D display device at the above-mentioned preset distance with above-mentioned display surface.
Further, it is first straight line by the central point of above-mentioned display surface and the straight line of central point of above-mentioned receiving plane,
Above-mentioned first straight line is vertical with above-mentioned receiving plane.
Further, the reflectivity of above-mentioned receiving plane is more than 50%, and preferably in reflection light, diffusing reflection accounting is more than
50%.
Further, two marks are provided with above-mentioned receiving plane, wherein, line and the human eye of two above-mentioned marks are watched
When two line it is parallel, the midpoints of two above-mentioned mark lines is the central point of above-mentioned receiving plane, and two above-mentioned marks are located at
In above-mentioned presumptive area.
Further, the distance between two above-mentioned marks are more than or equal to 65mm.
Further, above-mentioned image processing apparatus includes：Image capture device, above-mentioned image capture device show with above-mentioned 3D
Show that device is located at the same side of above-mentioned receiving plane, above-mentioned image capture device is used to obtain each above-mentioned projected image；Processor (5),
Electrically connected with above-mentioned image capture device, for calculating above-mentioned crossfire value according to each above-mentioned projected image.
Further, above-mentioned image capture device includes camera lens, and between the optical axis of above-mentioned camera lens and above-mentioned first straight line
Angle be less than 45 °.
Further, above-mentioned image includes N number of visual point image and an all black picture, wherein, X visual point image is the
Pixel display white, other above-mentioned pixels show the image of black, X≤N, N >=2, above-mentioned processor (5) corresponding to X viewpoint
Including：Gray scale acquiring unit, electrically connected with above-mentioned image capture device, for obtaining each above-mentioned throwing according to each above-mentioned projected image
The gray value of shadow image；Computing unit, electrically connected with above-mentioned gray scale acquiring unit, it is each above-mentioned for being calculated according to above-mentioned gray value
The crossfire value of the pixel of visual point image.
Further, said detecting system is placed in darkroom and tested.
According to the another aspect of the application, there is provided a kind of detection method of crosstalk, above-mentioned detection method include：Obtain 3D
Projection of the image that display is shown at preset distance；Obtain the projected image of the presumptive area of each above-mentioned projection；According to each
Above-mentioned projected image calculates the crossfire value of at least partly above-mentioned image.
Further, above-mentioned image includes N number of visual point image and an all black picture, wherein, X visual point image is the
Pixel display white, other above-mentioned pixels show the image of black, X≤N, N >=2, above-mentioned acquisition 3D display corresponding to X viewpoint
The process of the projection for the image that device is shown includes：Obtain the projection that above-mentioned 3D display device shows all black picture；Obtain successively above-mentioned
3D display device shows the projection of N number of visual point image.
According to the another further aspect of the application, there is provided a kind of storage medium, above-mentioned storage medium include the program of storage, its
In, equipment where above-mentioned storage medium is controlled when said procedure is run performs above-mentioned detection method.
According to the another aspect of the application, there is provided a kind of processor, above-mentioned processor are used for operation program, wherein, on
Above-mentioned detection method is performed when stating program operation.
Using the technical scheme of the application, in the detecting system, by by the image projection that 3D display device is shown to it is aobvious
Show that face has on the receiving plane of preset distance opening position, then obtained using image processing apparatus corresponding to the projection on receiving plane
Image, i.e. referred to as projected image, and then avoid and need image capture device in the prior art repeatedly movement could be obtained completely
There are the complicated processes of the projection of preset distance opening position with display surface, image processing apparatus obtains predetermined without mobile can
Projected image at distance, crossfire value is then calculated by the image information of projected image.Crosstalk is detected using the detecting system
It is less to be worth the time spent so that detection efficiency is higher.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 shows the structural representation of the detecting system provided according to a kind of embodiment of the application；And
Fig. 2 to Fig. 4 shows the picture of image capture device shooting.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
1st, base station is tested；2nd, 3D display device；3rd, receiving plane；4th, image capture device；5th, processor；6th, darkroom；30th, mark
Note.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the survey of crosstalk detection system inspection of the prior art is less efficient, in order to solve
As above technical problem, present applicant proposes the detecting system of kind of crosstalk, the detection method of crosstalk, storage medium and processor.
In a kind of typical embodiment of the application, there is provided a kind of detecting system of crosstalk, as shown in figure 1, above-mentioned
Detecting system includes receiving plane and image processing apparatus；Receiving plane includes receiving plane 3, and above-mentioned receiving plane 3 is used to obtain 3D display
Projection of the image that device 2 is shown at the preset distance of the display surface with above-mentioned image, i.e., above-mentioned receiving plane 3 and above-mentioned 3D display
The display surface of device 2 be arranged in parallel, as shown in figure 1, the preset distance of display surface and receiving plane 3 is D；Image processing apparatus is used to obtain
Take the projected image of the presumptive area on above-mentioned receiving plane 3, and according to above-mentioned projected image calculate above-mentioned 3D display device 2 with
Crossfire value at the above-mentioned preset distance of above-mentioned display surface.
In above-mentioned detecting system, by the way that the image projection that 3D display device is shown is had into preset distance position to display surface
Put on the receiving plane at place, image, i.e. referred to as perspective view corresponding to the projection on receiving plane are then obtained using image processing apparatus
Picture, and then avoid and need image capture device in the prior art repeatedly movement could completely obtain and have pre- spacing with display surface
From the complicated processes of the projection of opening position, image processing apparatus obtains the projected image at preset distance without mobile can,
Then crossfire value is calculated by the image information of projected image.The time spent using detecting system detection crossfire value is less,
So that detection efficiency is higher.
In a kind of embodiment of the application, as shown in figure 1, above-mentioned crosstalk detection system also includes test base station, base is tested
Platform is used to place 3D display device 2, and 3D display device 2 can be lain on test base station, i.e. the display surface of 3D display device and test base
It is parallel that the surface of 3D display device is placed on platform, can also be stood up, i.e., the display surface of 3D display device shows with placing 3D on test base station
Show that the surface of device is vertical, 3D display device can be placed on test in an appropriate manner by those skilled in the art according to actual conditions
On base station.
Above-mentioned test base station can be fixed platform or mobile platform, and those skilled in the art can root
Suitable test base station is selected according to actual conditions.
Above-mentioned receiving plane can be that the plane of any one projection that can receive visual point image of the prior art is set
Standby, in a kind of specific embodiment of the application, above-mentioned receiving plane is projection cloth.Certainly, those skilled in the art can basis
Actual conditions select suitable receiving plane to receive the projection of visual point image.
Certainly, the above-mentioned projection process by image projection to receiving plane can use any projection of the prior art
Equipment is implemented, and those skilled in the art can select suitable projector panel to control the projection of image according to actual conditions
Journey.
In order to simplify the processing procedure in successive image processing unit, and then can be correspondingly by the pixel of acquisition
The crossfire value that crossfire value is corresponded on visual point image, as shown in figure 1, central point and above-mentioned receiving plane 3 by above-mentioned display surface
The straight line of central point be first straight line, above-mentioned first straight line is vertical with above-mentioned receiving plane 3.
For the projection for distortionless acquisition visual point image of trying one's best, in a kind of embodiment of the application, above-mentioned receiving plane
Reflectivity is more than 50%.
And in a kind of embodiment of the application, in reflection light, diffusing reflection light is more than or 50%.It can so obtain more
Add the projection of clear visual point image.
The position of presumptive area is efficiently determined for convenience, and is ensured corresponding to each projected image of acquisition on receiving plane
Same area, and then cause image processing apparatus during projected image corresponding to subsequent treatment different points of view image,
In a kind of same area progress data processing, embodiment of the application, as shown in Fig. 2 being provided with two on above-mentioned receiving plane 3
Mark 30, the line of two is parallel when the line of two above-mentioned marks 30 is watched with human eye, in two above-mentioned lines of mark 30
Point is the central point of above-mentioned receiving plane 3, and two above-mentioned marks 30 are located in above-mentioned presumptive area.
In a kind of specific embodiment of the application, above-mentioned mark is that it can represent specific range
Or any luminous marker of areal extent, those skilled in the art can set to set on the receiving surface according to actual conditions and close
Suitable mark.
In a kind of embodiment of the application, the distance between two above-mentioned marks L is more than or equal to 65mm.Two eye distances of people
From being commonly considered as 65mm, so setting the distance between two marks here is more than 65mm, can very true simulation human eye
Crosstalk when watching 3D display device.
In order to further improve detection efficiency, in a kind of embodiment of the application, as shown in figure 1, above-mentioned image procossing fills
Put and be located at above-mentioned receiving plane 3 with above-mentioned 3D display device 2 including image capture device 4 and processor 5, above-mentioned image capture device 4
The same side, above-mentioned image capture device 4 be used for obtain each above-mentioned projected image；Processor 5 and the above-mentioned electricity of image capture device 4
Connection, for calculating crossfire value according to each above-mentioned projected image.
In a kind of specific embodiment of the application, above-mentioned image capture device can be any one of the prior art
Image capture device, those skilled in the art can select suitable image capture device, IMAQ according to actual conditions
Equipment has fixed aperture, time for exposure and sensitivity.In a kind of specific embodiment of the application, above-mentioned image capture device
For camera.
In order to be further ensured that image capture device more accurately can be obtained clearly corresponding to the presumptive area of projection
Projected image, in a kind of embodiment of the application, as shown in figure 1, above-mentioned image capture device 4 includes camera lens, and above-mentioned camera lens
Optical axis and above-mentioned first straight line between angle be less than 45 °.
In a kind of embodiment of the application, above-mentioned image includes N number of visual point image and an all black picture, wherein, X
Visual point image is pixel display white corresponding to X viewpoint, the image of other above-mentioned pixels display black, X≤N, N >=2, on
Stating processor includes gray scale acquiring unit and computing unit, and gray scale acquiring unit is electrically connected with above-mentioned image capture device 4, is used for
The gray value of each above-mentioned projected image is obtained according to each above-mentioned projected image, obtains the gray value of each pixel in image；Calculate
Unit electrically connects with above-mentioned gray scale acquiring unit, the crosstalk of the pixel for calculating each above-mentioned visual point image according to above-mentioned gray value
Value, the crossfire value of the pixel of above-mentioned viewpoint projected image is actually calculated according to above-mentioned gray value, and then obtain above-mentioned regard
The crossfire value of the pixel of dot image.Wherein, viewpoint projected image is the figure of the projection for the visual point image that image capture device obtains
Picture.The crossfire value that the pixel in corresponding scope specifically can be calculated according to being actually needed, for example, between two marks can be calculated
Each pixel crossfire value.
It is above-mentioned in a kind of embodiment of the application in order to more easily and efficiently obtain the minimum crossfire value of 3D display device
Processor 5 also includes the first comparing unit, position acquisition unit, segmenting unit and the second comparing unit, the first comparing unit with
Above-mentioned gray scale acquiring unit electrical connection, the gray scale maximum of above-mentioned projected image is obtained for comparing；Position acquisition unit with it is upper
The electrical connection of the first comparing unit is stated, it is corresponding in the position of above-mentioned projected image and gray scale pole for obtaining above-mentioned gray scale maximum
Row where big value；Segmenting unit one end electrically connects with above-mentioned position acquisition unit, for where above-mentioned gray scale maximum
Row is segmented, and forms multiple pixel fragments；Above-mentioned gray scale acquiring unit electrically connects with above-mentioned segmenting unit, is additionally operable to obtain on each
State at least one above-mentioned pixel in pixel fragment gray value and other each above-mentioned projected images in it is corresponding with above-mentioned pixel fragment
The gray value of the above-mentioned pixel of position；Above-mentioned computing unit is additionally operable at least one above-mentioned pixel in above-mentioned each pixel fragment
Gray value calculate the crossfire value of each above-mentioned pixel fragment.
In a kind of embodiment of the application, above-mentioned processor is also electrically connected including the second comparing unit with above-mentioned computing unit
Connect, for comparing the above-mentioned gray value in different above-mentioned pixel fragments, to obtain the minimum crossfire value in above-mentioned viewpoint projected image.
In another embodiment of the application, as shown in Fig. 2 two marks 30 are provided with above-mentioned receiving plane 3, on two
State that the line of two when the line of mark 30 is watched with human eye is parallel, and the midpoint of two above-mentioned lines of mark 30 is above-mentioned receiving plane
3 central point, and the length of above-mentioned first line segment is equal to the distance of the line segment between two above-mentioned marks 30.It can thus enter
One step more truly obtains minimum crossfire value exactly so that the minimum crossfire value of acquisition is more intentional closer to truth
Justice.
In addition, people's eyes line is parallel with the long side of 3D display device when if display is watched, the long side of 3D display device is put down
Row is in the line of two marks；If people's eyes line is parallel with 3D display device short side during viewing, display short side is parallel to two
The line of individual mark.
In order to avoid the shadow in external environment rings testing result, as shown in figure 1, in a kind of embodiment of the application, on
State detecting system and be placed in darkroom 6 and tested.
In the typical embodiment of another kind of the application, there is provided a kind of detection method of crosstalk, above-mentioned detection method
Including：Projection of the image that acquisition 3D display device is shown at preset distance；Obtain the projection of the presumptive area of each above-mentioned projection
Image；The crossfire value of at least partly above-mentioned image is calculated according to each above-mentioned projected image.
In above-mentioned detection method, projection of the image of display at preset distance is first obtained, is then obtained on receiving plane
Projection corresponding to image, that is, obtain projected image, and then the crosstalk of each pixel is calculated according to the image information of projected image
Value.This method is simpler, and detection efficiency is higher, to be moved without image capture device, it is possible to passes through the image of projected image
Crossfire value.
In order that the crosstalk information that must be obtained is more accurate, in a kind of embodiment of the application, above-mentioned image includes N number of regard
Dot image and an all black picture, wherein, X visual point image is pixel display white corresponding to X viewpoint, other above-mentioned
Pixel shows the image of black, and X≤N, N >=2, obtaining the process of the projection for the image that 3D display device is shown also includes：In acquisition
State the projection that 3D display device shows all black picture；The projection that above-mentioned 3D display device shows N number of visual point image is obtained successively.Certainly,
In ideal conditions, i.e., shooting environmental and screen can be with the case of completely black, it is not required that control above-mentioned 3D display device to show
Show the image information of projected image corresponding to completely black image and then acquisition.
In another embodiment of the application, calculated according to each above-mentioned projected image each above-mentioned in above-mentioned viewpoint projected image
The process of the crossfire value of pixel includes：The gray value of each above-mentioned pixel of above-mentioned projected image is obtained according to above-mentioned projected image；
The crossfire value of each above-mentioned pixel is calculated according to above-mentioned gray value.
It is above-mentioned in a kind of embodiment of the application in order to more easily and efficiently obtain the minimum crossfire value of 3D display device
Detection method also includes the process for obtaining the minimum crossfire value of above-mentioned viewpoint projected image, and said process includes：Obtain above-mentioned regard
The gray value of each above-mentioned pixel of spot projection image；Compare the above-mentioned gray value of each above-mentioned pixel, obtain gray scale maximum；According to
Above-mentioned gray scale maximum obtains above-mentioned pixel corresponding to above-mentioned gray scale maximum in the position of above-mentioned projected image, i.e. dominant bit
Put；First line segment is obtained according to above-mentioned maximum position, above-mentioned first line segment passes through above-mentioned maximum position, and above-mentioned first line segment pair
The line of two is parallel when answering the line segment of above-mentioned 3D display device to be watched with human eye；Above-mentioned first line segment is segmented, obtains picture
Plain section, obtain at least one above-mentioned pixel in each above-mentioned pixel fragment gray value and other each above-mentioned projected images in it is upper
State the gray value of the above-mentioned pixel of pixel fragment correspondence position, specifically, including in projected image corresponding to all black picture with the picture
In the gray value of pixel corresponding to plain fragment position, in addition to other viewpoint projected images with the pixel of the pixel fragment position correspondence
Gray value, the crossfire value of above-mentioned each pixel fragment is calculated according to above-mentioned gray value.
In a kind of embodiment of the application, above-mentioned detection method also includes：Compare the above-mentioned string in different above-mentioned pixel fragments
Value is disturbed, to obtain the minimum crossfire value in above-mentioned viewpoint projected image.
In order to avoid the shadow in external environment rings testing result, in a kind of embodiment of the application, 3D display device is obtained
The projected image process of the process of the projection of the image of display and the presumptive area of each above-mentioned projection of acquisition is real in darkroom
Apply.
According to the another further aspect of the application, there is provided a kind of storage medium, above-mentioned storage medium include the program of storage, its
In, equipment where above-mentioned storage medium is controlled when said procedure is run performs any of the above-described kind of detection method.
Above-mentioned storage medium make it that the detection efficiency of crosstalk is higher, and testing result is more accurate.
According to the another further aspect of the application, there is provided a kind of processor, above-mentioned processor are used for operation program, wherein, on
Any of the above-described kind of detection method is performed when stating program operation.
Above-mentioned processor make it that the detection efficiency of crosstalk is higher, and testing result is more accurate.
In order that the technical scheme of the application can clearly be understood by obtaining those skilled in the art, below with reference to tool
The embodiment of body illustrates the technical scheme of the application.
Embodiment
As shown in figure 1, detecting system includes test base station 1, receiving plane 3 and image processing apparatus.
Wherein, the size of receiving plane is long 800mm, high 600mm, and the size of 3D display device is 15.6 cun, and receiving plane 3 is throwing
Shadow cloth, above-mentioned receiving plane 3 and above-mentioned 3D display device 2 are relative and be arranged in parallel, by the central point of above-mentioned 3D display device 2 and above-mentioned
The straight line of the central point of receiving plane 3 is first straight line, and above-mentioned first straight line is vertical with above-mentioned receiving plane 3.The reflectivity of projection cloth
More than 50%, diffusing reflection light is more than or 50%.And as shown in Fig. 2 be provided with two marks 30 on above-mentioned receiving plane 3, two
The line of two is parallel when the line of above-mentioned mark 30 is watched with human eye, and the midpoint of two above-mentioned lines of mark 30 is above-mentioned reception
The central point in face 3, two above-mentioned marks 30 are located in above-mentioned presumptive area.Each mark is, and two above-mentioned marks
The distance between 30 be 100mm.
Above-mentioned image processing apparatus includes image capture device 4 and processor 5, and image capture device is camera.It is above-mentioned
Image capture device 4 includes camera lens, and the angle between the optical axis of above-mentioned camera lens and above-mentioned first straight line is less than 45 °.Above-mentioned place
Managing device 5 includes gray scale acquiring unit, the first comparing unit, position acquisition unit, segmenting unit, the computing unit list compared with second
Member.Specific annexation sees above content.
Specific detection process includes：
Obtain the projection for the image that 3D display device is shown
Control 3D display device first shows a completely black image, then shows 2 visual point images successively again；And successively will be complete
Black image and 2 visual point images are projected to projection cloth, the image in completely black image projection to receiving plane as shown in Fig. 2
First visual point image viewpoint projected image corresponding with the second visual point image is followed successively by such as Fig. 3 and Fig. 4.
Obtain projected image
Camera shoots corresponding projection successively, and then obtains 3 projected images, and the projected image includes space luminous energy point
Cloth.
Processor obtains crossfire value
Gray scale acquiring unit obtains the gray value of above-mentioned projected image according to the space photic-energy transfer of above-mentioned projected image；
Computing unit is according to above-mentioned gray value, using formulaCalculate some visual point image
The crossfire value of each above-mentioned pixel of corresponding projected image, wherein, GnjRepresent viewpoint projected image corresponding to n-th of visual point image
In, the gray value of j-th of pixel, GmjRepresent in viewpoint projected image corresponding to m-th of visual point image, the gray scale of j-th of pixel
Value, CrosstalkjN represents the crossfire value of j-th of pixel in viewpoint projected image corresponding to n-th of visual point image, due to viewpoint
Image and the position of the pixel of viewpoint projecting figure correspond completely, therefore, CrosstalkjN also illustrates that n-th of viewpoint figure
The crossfire value of j-th of pixel as in, m represent remaining viewpoint in addition to n-th of viewpoint, GBjIt is projected image corresponding to all black picture
In j-th of pixel gray value, the value is background noise energy.
Detection process also includes the process for obtaining the minimum crossfire value of above-mentioned projected image
First comparing unit compares the gray value of each pixel of projected image corresponding to a visual point image, and then obtains
State the gray scale maximum of projected image；Position acquisition unit obtains the corresponding maximum in above-mentioned projected image of above-mentioned gray scale maximum
Position and the first line segment, above-mentioned first line segment passes through above-mentioned maximum position, and above-mentioned first line segment is corresponded on above-mentioned receiving plane 3
Line segment when being watched with human eye two line it is parallel；Segmenting unit is segmented to above-mentioned first line segment, forms multiple pixels
Section, also, when asking the projection of n-th visual point image, the section where receiving surface brightness maxima, that is, determine the ideal of n-th of viewpoint
Observation section is kth section；Above-mentioned gray scale acquiring unit obtains the gray value of the pixel of kth section；Above-mentioned computing unit is according to kth section
The gray value of pixel, using formulaThe crossfire value of kth section is calculated, wherein,
GnkRepresent in viewpoint projected image corresponding to n-th of visual point image, the gray value of the kth section of the first line segment is (with one of those
The gray value of pixel represents), GmkRepresent in viewpoint projected image corresponding to m-th of visual point image, Crosstalkk(actually
It is CrosstalkkN) crossfire value of kth section in viewpoint projected image corresponding to n-th of visual point image is represented, due to visual point image
Corresponded completely with the position of the pixel of viewpoint projecting figure, therefore, CrosstalkkAlso illustrate that n-th of visual point image is corresponding
Kth section crossfire value, m represents remaining viewpoint in addition to n-th of viewpoint, GBkIt is kth in projected image corresponding to all black picture
The gray value of section, the value is background noise energy；Above-mentioned gray value in the more different above-mentioned pixel fragments of second comparing unit, with
Obtain the minimum crossfire value in projected image corresponding to above-mentioned visual point image.
By above-mentioned detection process, only by shooting N+1 width images, you can complete all crosstalks in the range of predetermined labels
The measurement of value, rather than need mobile or rotary camera to come point-by-point detection data, therefore, the detection method as prior art
Measurement efficiency is greatly improved with detecting system, equipment overall simple is easy to operate, and cost is relatively low.
As can be seen from the above description, the application the above embodiments realize following technique effect：
1), in the detecting system of the application, by the way that the image projection that 3D display device is shown is predetermined to having with display surface
On receiving plane at distance and position, then using image corresponding to the projection on image processing apparatus acquisition receiving plane, that is, it is referred to as
Projected image, and then avoid and need image capture device in the prior art repeatedly movement could completely be obtained and had with display surface
The complicated processes of the projection of preset distance opening position, image processing apparatus obtain the projection at preset distance without mobile can
Image, crossfire value is then calculated by the image information of projected image.The time spent using detecting system detection crossfire value
It is less so that detection efficiency is higher.
2), in the detection method of the application, the projection of each visual point image is first obtained, then obtains the projection pair on receiving plane
The image answered, that is, obtain projected image, wherein, the projected image of above-mentioned visual point image is viewpoint projected image, and then according to throwing
The image information of shadow image calculates the crossfire value of each pixel.This method is simpler, and detection efficiency is higher, is set without IMAQ
It is standby to move, it is possible to the crossfire value of each pixel is calculated by the image information of projected image, it is corresponding to obtain some viewpoint figure
The crosstalk information of picture or multiple visual point images.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (13)
1. a kind of detecting system of crosstalk, it is characterised in that the detecting system includes：
Receiving plane (3), the image that the receiving plane (3) is used to obtain 3D display device (2) display is in the display surface with described image
Preset distance at projection；And
Image processing apparatus, for obtaining the projected image of the presumptive area on the receiving plane (3), and according to the projection
Image calculates crossfire value of the 3D display device (2) at the preset distance with the display surface.
2. detecting system according to claim 1, it is characterised in that central point and the reception by the display surface
The straight line of the central point in face (3) is first straight line, and the first straight line is vertical with the receiving plane (3).
3. detecting system according to claim 1, it is characterised in that the reflectivity of the receiving plane (3) be more than 50%, and
It is preferred that in reflection light, diffusing reflection accounting is more than 50%.
4. detecting system according to claim 1, it is characterised in that two marks are provided with the receiving plane (3)
(30), wherein, the line of two is parallel when the line of two marks (30) is watched with human eye, and two marks (30) are even
The midpoint of line is the central point of the receiving plane (3), and two marks (30) are located in the presumptive area.
5. detecting system according to claim 4, it is characterised in that two marks the distance between (30) be more than or
Equal to 65mm.
6. detecting system according to claim 2, it is characterised in that described image processing unit includes：
Image capture device (4), described image collecting device (4) are located at the same of the receiving plane (3) with the 3D display device (2)
Side, described image collecting device (4) are used to obtain each projected image；And
Processor (5), electrically connected with described image collecting device (4), for calculating the crosstalk according to each projected image
Value.
7. detecting system according to claim 6, it is characterised in that described image collecting device (4) includes camera lens, and institute
The angle stated between the optical axis of camera lens and the first straight line is less than 45 °.
8. detecting system according to claim 6, it is characterised in that described image includes N number of visual point image and one complete
Picture black, wherein, X visual point image is pixel display white corresponding to X viewpoint, and other pixels show black
Image, X≤N, N >=2, the processor (5) include：
Gray scale acquiring unit, electrically connected with described image collecting device (4), for according to each projected image acquisition is each
The gray value of projected image；And
Computing unit, electrically connected with the gray scale acquiring unit, for calculating each visual point image according to the gray value
The crossfire value of pixel.
9. detecting system according to claim 1, it is characterised in that the detecting system is placed in darkroom (6) and carried out
Test.
10. a kind of detection method of crosstalk, it is characterised in that the detection method includes：
Projection of the image that acquisition 3D display device is shown at preset distance；
Obtain the projected image of the presumptive area of each projection；And
The crossfire value of at least part described image is calculated according to each projected image.
11. detection method according to claim 10, it is characterised in that described image includes N number of visual point image and one
All black picture, wherein, X visual point image is pixel display white corresponding to X viewpoint, and other pixels show black
Image, X≤N, N >=2, the process for obtaining the projection of image that 3D display device is shown includes：
Obtain the projection that the 3D display device shows all black picture；And
The projection that the 3D display device shows N number of visual point image is obtained successively.
A kind of 12. storage medium, it is characterised in that the storage medium includes the program of storage, wherein, run in described program
When control the storage medium where detection method described in equipment perform claim requirement 10 or 11.
A kind of 13. processor, it is characterised in that the processor is used for operation program, wherein, right of execution when described program is run
Profit requires the detection method described in 10 or 11.
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