CN109302601A - A kind of test method and test device of naked eye 3D display screen - Google Patents
A kind of test method and test device of naked eye 3D display screen Download PDFInfo
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- CN109302601A CN109302601A CN201811196281.7A CN201811196281A CN109302601A CN 109302601 A CN109302601 A CN 109302601A CN 201811196281 A CN201811196281 A CN 201811196281A CN 109302601 A CN109302601 A CN 109302601A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a kind of test method of naked eye 3D display screen, which includes: dollying head to the best view position of naked eye 3D display screen；Naked eye 3D display screen is set and shows test pictures；Wherein, test pictures and naked eye 3D display screen length-width ratio having the same, and the center of test pictures is overlapped with the center of naked eye 3D display screen, test pictures covering part naked eye 3D display screen；Test pictures are in the angular field of view of camera；The test pictures shown using camera acquisition naked eye 3D display screen；According to the collected test pictures of camera, the picture offset parameter of naked eye 3D display screen is calculated.The test method of naked eye 3D display screen provided by the invention, can satisfy naked eye 3D display screen optimum viewing distance it is lower when test needs, realize the test of the naked eye 3D display screen in the case of different sighting distances, improve testing efficiency, while having saved testing cost.
Description
Technical field
The present embodiments relate to 3D display technology more particularly to the test methods and test dress of a kind of naked eye 3D display screen
It sets.
Background technique
Naked eye three-dimensional (3-dimension, 3D) display screen is widely used in advertisement, medium, demonstration teaching, display and demonstration
And each different field such as video display.It is different from traditional binocular 3D display technology, naked eye 3D display is due to possessing its naked eye
Unique property, that is, 3D effect, and its depth of field and three-dimensional sense true to nature, and pole can be watched by not needing spectators' wearing spectacles or the helmet
Visual impact and feeling of immersion of the spectators in viewing experience are improved greatly, becomes product promotion, public awareness campaign and image and plays
Best image product.
The principle of naked eye 3D display is divided generally by the image that lens show display screen, and lens pass through to light
Refraction action, different display contents is refracted to place different in space, the content shown when reaching human eye is separated,
Human eye receives the image that two width contain parallax, just produces stereoscopic effect in this way.Since the principle of naked eye 3D display screen is logical
The refraction for crossing light makes right and left eyes see the image of different points of view and generate 3D effect, therefore, for naked eye 3D display screen, usually all
There are an optimum viewing distance, spectators are in the available preferable 3D viewing effect of the optimum viewing distance.
Detection for naked eye 3D display screen, usually software to red blueprint carry out viewpoint figure intertexture by way of realize,
I.e. by the refraction action of lens on light, achieve the effect that red blue light splitting, camera frame is located at naked eye 3D display screen optimum viewing distance
Corresponding camera shooting grease head highness, it can be seen that the red blue region having a common boundary of product to be measured, it can essence by the straight line fitting tool of software
The offset of view central point and the angular deflection after the fitting of 3D optical thin film of true calculating naked eye 3D display screen.And due to optical design
When, it is influenced by the resolution ratio of product, screen thickness, technique etc., often the best view of the naked eye 3D display screen of actual output
Away from shorter, when doing product test, camera is being down to optimum viewing distance since camera visual angle is smaller by original testing scheme
When corresponding camera shooting grease head highness, camera is caused not acquire the red blue picture of whole naked eye 3D displays, at this time inspection software
The image of acquisition is the red blueprint of display all over the screen, therefore tester can not be accurately by camera center and naked eye 3D display screen
Center contraposition, causes the puzzlement of detection.
Summary of the invention
The test method and test device that the present invention provides a kind of naked eye 3D display screen can when guaranteeing low optimum viewing distance
To carry out the center contraposition at camera center and naked eye 3D display screen, the inspection of naked eye 3D display screen when realizing low optimum viewing distance
It surveys.
In a first aspect, the embodiment of the invention provides a kind of test methods of naked eye 3D display screen, comprising:
Dollying head is to the best view position of naked eye 3D display screen；
The naked eye 3D display screen is set and shows test pictures；Wherein, the test pictures and the naked eye 3D display screen
Length-width ratio having the same, and the center of the test pictures is overlapped with the center of the naked eye 3D display screen, the test picture
Naked eye 3D display screen described in the covering part of face；The test pictures are in the angular field of view of the camera；
The test pictures that the naked eye 3D display screen is shown are acquired using the camera；
According to the collected test pictures of the camera, the picture offset ginseng of the naked eye 3D display screen is calculated
Number.
Optionally, described according to the collected test pictures of the camera, calculate the naked eye 3D display screen
Picture offset parameter, comprising:
According to the collected test pictures of the camera, it is fitted the center boundary line segment of 3D display；
The center boundary line segment of the 3D display is compared with standard line of demarcation, calculates the naked eye 3D display screen
Picture offset parameter.
Optionally, before the setting naked eye 3D display screen shows test pictures, further includes:
Judge whether the naked eye 3D display screen is entirely located in the visual angle of the camera, if so, executing setting institute
State the operation that naked eye 3D display screen shows test pictures.
Optionally, before the setting naked eye 3D display screen shows test pictures, further includes:
Judge whether the naked eye 3D display screen is entirely located in the visual angle of the camera, if it is not, the length-width ratios contracting such as then
The small test pictures are in the angular field of view of the camera to the test pictures.
Optionally, the test pictures are less than with the naked eye 3D display screen scalingWherein, D is institute
The long side length of naked eye 3D display screen is stated, H is the optimum viewing distance of the naked eye 3D display screen, and L is eye distance, and θ is the camera
Visual angle.
Optionally, the dollying head is to the best view position of naked eye 3D display screen, comprising:
The camera is moved to the corresponding best camera shooting head plane of the naked eye 3D display screen optimum viewing distance；
In the best camera shooting head plane, the position of the camera is adjusted, makes the camera center described naked
The projection of plane is overlapped with the center of the naked eye 3D display screen where eye 3D display screen.
Optionally, the standard line of demarcation is the crosshair positioned at the camera center.
Optionally, described according to the collected test pictures of the camera, it is fitted the center line of demarcation of 3D display
Section, comprising:
Extract the pixel of predeterminable area in color crossover region in the collected test pictures of the camera；Wherein,
The collected test pictures of camera are that left and right view is monochromatic overlapping figure, and is handed between the view of left and right for color
Folded area；
According to the center of the Pixel fit 3D display of predeterminable area boundary line segment.
Optionally, the predeterminable area includes the region of default row, default column, preset interval row or preset interval column.
Optionally, the picture offset parameter includes off-centring parameter and angle offset parameter.
Second aspect, the embodiment of the invention also provides a kind of test devices of naked eye 3D display screen, comprising:
Best view position determination module, for dollying head to the best view position of naked eye 3D display screen；
Test pictures setup module shows test pictures for the naked eye 3D display screen to be arranged；
Acquisition module, for acquiring the test pictures that the naked eye 3D display screen is shown using the camera；
Computing module, for calculating the naked eye 3D display screen according to the collected test pictures of the camera
Picture offset parameter.
It optionally, further include judgment module, the judgment module is for judging the whether whole positions of the naked eye 3D display screen
In in the visual angle of the camera.
It optionally, further include Zoom module, the Zoom module is used to judge the naked eye 3D in the judgment module
Display screen is not when being entirely located in the visual angle of the camera, etc. length-width ratios reduce the test pictures to the test pictures
In angular field of view in the camera.
Then naked eye 3D display is arranged by the way that camera to be moved to the best view position of naked eye 3D display screen in the present invention
Screen display test pictures make test pictures covering part naked eye 3D display screen, center weight identical as naked eye 3D display screen length-width ratio
It closes, and guarantees that test pictures are in the angular field of view of camera, and then through camera collecting test picture, pass through test pictures
The picture offset parameter for calculating naked eye 3D display screen, can solve when the optimum viewing distance of naked eye 3D display screen is lower, camera
Visual angle does not acquire whole test pictures because smaller, so that tester can not be accurately by camera center and naked eye 3D
Display screen center contraposition, the problem of then detection, without when carrying out the detection of low optimum viewing distance naked eye 3D display screen
Buy expensive wide-angle camera.The test method of naked eye 3D display screen provided by the invention can satisfy naked eye 3D display screen
Test when optimum viewing distance is lower needs, and realizes the test of the naked eye 3D display screen in the case of different sighting distances, improves test
Efficiency, while having saved testing cost.
Detailed description of the invention
Fig. 1 is a kind of test method flow chart for naked eye 3D display screen that the embodiment of the present invention one provides；
Fig. 2 is the physical structure diagram for the naked eye 3D display screen test device that the embodiment of the present invention one provides；
Fig. 3 is the schematic diagram for the camera best view position that the embodiment of the present invention one provides；
Fig. 4 is the schematic diagram of the test pictures for the camera acquisition that the embodiment of the present invention one provides；
Fig. 5 is a kind of test method flow chart of naked eye 3D display screen provided by Embodiment 2 of the present invention；
Fig. 6 is the positional diagram of test pictures provided by Embodiment 2 of the present invention and camera；
Fig. 7 is a kind of structural schematic diagram of the test device for naked eye 3D display screen that the embodiment of the present invention three provides；
Fig. 8 is the structural schematic diagram of the test device for another naked eye 3D display screen that the embodiment of the present invention three provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of flow chart of the test method for naked eye 3D display screen that the embodiment of the present invention one provides, and Fig. 2 is this hair
The physical structure diagram for the naked eye 3D display screen test device that bright embodiment one provides, with reference to Fig. 1 and Fig. 2, the test method
Include:
S110, dollying head 10 to the best view position of naked eye 3D display screen 11；
Wherein, for naked eye 3D display screen 11, in watching process, human eye is needed to be placed in the center of optimum viewing distance,
It just can guarantee that view different in display screen is refracted into right and left eyes by light, to realize preferably 3D effect；Fig. 3 is this
Inventive embodiments one provide camera best view position schematic diagram, with reference to Fig. 3, during the test, also need by
The camera 10 of acquisition 11 picture of naked eye 3D display screen is placed in the 10 best view position of camera of corresponding human eye optimum viewing distance,
The intersection position of two light i.e. as shown in the figure, camera 10 can collect the view of corresponding right and left eyes as a result,.And it needs
Illustrating, although 10 position of camera shown in Fig. 3 illustrates only the side block diagram at a visual angle, lateral in difference
The obtained structure chart in visual angle can be indicated by Fig. 3, it follows that camera 10 is aobvious to naked eye 3D at best view position
Display screen 11 project after its center be overlapped with the center of naked eye 3D display screen 11, the position of center line of naked eye 3D display screen 11 also with take the photograph
As first 10 center line coincidence can be according to the center of camera 10 and the center of center line substitution naked eye 3D display screen with this
And center line, as center for standard and center for standard line.
S120, setting naked eye 3D display screen show test pictures；Wherein, test pictures have identical with naked eye 3D display screen
Length-width ratio, and the center of test pictures is overlapped with the center of naked eye 3D display screen, test pictures covering part naked eye 3D display
Screen；Test pictures are in the angular field of view of camera；
Wherein, test pictures are the two width views including corresponding right and left eyes in 3D display picture namely test pictures, naked eye
Two width views are carried out the refraction of light by 3D display screen 11, focus on right and left eyes respectively, and with human eye the difference is that test
Camera 10 can only collect the two dimensional image at best view position.Also, naked eye 3D display lower for optimum viewing distance
The test pictures of state all over the screen, when the visual angle of camera 10 is smaller, then cannot be acquired, can make test pictures at this time by screen 11
Scaled down is shown, and test pictures are to be reduced with the center of the test pictures of state all over the screen, and be contracted to whole
Test pictures are located in the angular field of view of camera 10, and the test pictures of diminution should be with 11 Aspect Ratio phase of naked eye 3D display screen
Deng.
S130, the test pictures shown using camera acquisition naked eye 3D display screen；
Wherein, the collection process of camera 10 is usually charge-coupled device (the Charge Coupled passed through in it
Device, CCD) induction test pictures light, by the converting optical signals in two-dimensional surface be electric signal, then by electric signal turn
Picture pixels value is turned to, the image of test pictures is formed.
S140, according to the collected test pictures of camera, calculate the picture offset parameter of naked eye 3D display screen.
By the test pictures of acquisition, center and the center line of test pictures can be calculated, and according to camera 10
Center and center line compare calculating, can be obtained the offset parameter of test pictures.
The test method of naked eye 3D display screen provided in an embodiment of the present invention, by the way that camera is moved to naked eye 3D display
Then the best view position of screen is arranged naked eye 3D display screen and shows test pictures, keeps test pictures covering part naked eye 3D aobvious
Display screen, center identical as naked eye 3D display screen length-width ratio are overlapped, and guarantee that test pictures are in the angular field of view of camera,
And then through camera collecting test picture, the picture offset parameter of naked eye 3D display screen is calculated by test pictures, can solve
When the optimum viewing distance of naked eye 3D display screen is lower, camera visual angle does not acquire whole test pictures because smaller, so that
Tester can not accurately align camera center and naked eye 3D display screen center, the problem of then detection, also without
Expensive wide-angle camera need to be bought when carrying out the detection of the lower naked eye 3D display screen of optimal viewing angle.The embodiment of the present invention mentions
The test method of the naked eye 3D display screen of confession, can satisfy naked eye 3D display screen optimum viewing distance it is lower when test needs, realize
The test of naked eye 3D display screen in the case of different sighting distances, improves testing efficiency, while having saved testing cost.
Calculating, the survey of acquisition are compared according to the center and center line of the center of test pictures and center line and camera
It tries to include off-centring parameter and angle offset parameter in the offset parameter of picture.Specifically, it is taken the photograph in progress step 140, basis
As collected test pictures, when calculating the picture offset parameter of naked eye 3D display screen, it may include:
S141, according to the collected test pictures of camera, be fitted the center boundary line segment of 3D display；
Wherein, since the test pictures of naked eye 3D display screen are the different view of two width, it is refracted into people's by light
Right and left eyes form 3D effect, and camera acquisition is the two dimensional image of the two width view at best view position, it is clear that
There are the lines of demarcation of a 3D display in the two dimensional image, which is the center line of test pictures, for collected two
Image is tieed up, by acquisition pixel value and image procossing, can be obtained the center line segment on line of demarcation namely center line of demarcation
Section, the center location information and center line angle information of test pictures are contained in center boundary line segment.
S142, the center boundary line segment of 3D display and standard scores boundary mark note are compared, calculates naked eye 3D display screen
Picture offset parameter.
Wherein, the angle information of the center location information in standard demarcation indicatia comprising camera and center line, specifically,
It can be in the crosshair of the center of camera setting or cross hairs etc..Pass through the center line of demarcation for fitting test pictures
Section is compared with crosshair or cross hairs, can calculate the off-centring distance of center boundary line segment and crosshair and inclined
Move angle, the i.e. center offset and angular deviation of test pictures.
Further, Fig. 4 is the schematic diagram of the test pictures for the camera acquisition that the embodiment of the present invention one provides, reference
Fig. 4, it is left and right view there are overlapping region that the collected two dimensional image of camera is practical, and the left and right view is by specifically testing
Picture determines that in view of this, step 141, according to the collected test pictures of camera is fitted the center line of demarcation of 3D display
Section, it may include:
S1411, the pixel for extracting the predeterminable area of color crossover region in the collected test pictures of camera；Wherein, it takes the photograph
It is monochromatic overlapping figure as collected test pictures are left and right view, and is color crossover region between the view of left and right；
Wherein, color crossover region is the region that left and right view laterally overlaps generation in test pictures, and left and right view is settable
For two different monochromatic views of color, illustratively, settable test pictures are left red right two blue monochromatic views, are overlapped
Region is the color of red blue mixing.
S1412, line segment of being demarcated according to the center of the Pixel fit 3D display of predeterminable area.
Wherein, the center boundary line segment for fitting 3D display refers to, since overlapping region is located at the middle area of left and right view
Domain, therefore the center of overlapping region and center line are center and the center line of test pictures, utilize the part picture of overlapping region
Usually fit the center boundary line segment of 3D display, it is ensured that in the case that center and center line fitting result are constant, reduce
The complexity of image procossing improves Fitting efficiency.
Optionally, predeterminable area includes the region of default row, default column, preset interval row or preset interval column.It is exemplary
Ground can extract the pixel region of default row, such as the adjacent pixel of the five-element is extracted in overlapping region, according to the 5 row pixel
Location information fits center boundary line segment, by carrying out pair the demarcate crosshair of line segment and camera of the center
Than calculating, the center offset and angular deviation of test pictures can be obtained.It can also be the pixel region for extracting spaced rows,
Such as five-element's pixel is extracted, one-row pixels are respectively separated between five-element's pixel, thus according to the position of five-element's pixel at the interval
Confidence breath fits a center boundary line segment.Likewise it is possible to extract a certain number of column pixels, center line of demarcation is carried out
The fitting of section, details are not described herein again.
Embodiment two
The embodiment of the present invention two additionally provides a kind of test method of naked eye 3D display screen, and Fig. 5 is the embodiment of the present invention two
A kind of test method flow chart of the naked eye 3D display screen provided, with reference to Fig. 5, which includes:
S211, dollying head to the corresponding best camera shooting head plane of naked eye 3D display screen optimum viewing distance；
Wherein, with reference to Fig. 3, there are an optimum viewing distances for the right and left eyes of people for naked eye 3D display screen, and in order to guarantee to take the photograph
The picture for collecting same visual direction as first 10 needs camera 10 to be correspondingly placed at best view position, and firstly, needing
Camera 10 first to be adjusted at a distance from naked eye 3D display screen, i.e., first camera is moved on best camera shooting head plane.
S212, it is most preferably imaging in head plane, is adjusting the position of camera, make camera center in naked eye 3D display screen institute
It is overlapped in the projection of plane with the center of naked eye 3D display screen；
Most preferably camera shooting head plane in, it is ensured that at a distance from naked eye 3D display screen be optimum distance, need further exist for
The center of camera and naked eye 3D display screen is guaranteed to be aligned, so as on later use camera center and center line as mark
True centric and center for standard line.
S220, judge whether naked eye 3D display screen is entirely located in the visual angle of camera；
Fig. 6 is the positional diagram of test pictures provided by Embodiment 2 of the present invention and camera, right with reference to Fig. 6
In the naked eye 3D display screen that optimum viewing distance is h, it is clear that the camera at position one can just acquire the complete of naked eye 3D display screen
Shield test pictures；If optimum viewing distance is greater than h, camera position needs to raise at this time, and the coverage area of corresponding view angle theta will be greater than naked
Eye 3D display screen, therefore can satisfy the requirement for acquiring full frame test pictures；And when the optimum viewing distance of naked eye 3D display screen is less than h
When, it is obviously desirable to test pictures are zoomed in and out, to guarantee that test pictures are all covered by camera visual angle, i.e., on 3D display screen
Test pictures be in the angular field of view of camera.
S230, setting naked eye 3D display screen show test pictures；Wherein, test pictures have identical with naked eye 3D display screen
Length-width ratio, and the center of test pictures is overlapped with the center of naked eye 3D display screen, test pictures covering part naked eye 3D display
Screen；Test pictures are in the angular field of view of camera；
Wherein, when judging that naked eye 3D display screen is located in the visual angle of camera in step 220, then 3D display screen can be driven
Test pictures all over the screen are directly displayed, test pictures are located in the visual angle of camera at this time；In step 220, it is judged as naked eye 3D
Display screen is not when being entirely located in the visual angle of camera, can etc. length-width ratios reduce test pictures taken the photograph so that test pictures are in
As head angular field of view in.
S240, the test pictures shown using camera acquisition naked eye 3D display screen；
S250, according to the collected test pictures of camera, calculate the picture offset parameter of naked eye 3D display screen.
The test method of naked eye 3D display screen provided in an embodiment of the present invention, by the way that camera is moved to naked eye 3D display
Then the best view position of screen judges that can naked eye 3D display screen be entirely located in camera, naked eye 3D display is then arranged
Screen display test pictures make test pictures covering part naked eye 3D display screen, center weight identical as naked eye 3D display screen length-width ratio
It closes, and guarantees that test pictures are in the angular field of view of camera, and then through camera collecting test picture, pass through test pictures
The picture offset parameter for calculating naked eye 3D display screen, can solve when the optimum viewing distance of naked eye 3D display screen is lower, camera
Visual angle does not acquire whole test pictures because smaller, so that tester can not be accurately by camera center and naked eye 3D
Display screen center contraposition, the problem of then detection, without in the inspection for carrying out the lower naked eye 3D display screen of optimum viewing distance
Expensive wide-angle camera is bought when survey.The test method of naked eye 3D display screen provided in an embodiment of the present invention, can satisfy naked
Test when eye 3D display screen optimum viewing distance is lower needs, and realizes the test of the naked eye 3D display screen in the case of different sighting distances,
Testing efficiency is improved, while having saved testing cost.
For different naked eye 3D display screens, the problems such as due to optical design, technique, although being of the same size,
Its optimum viewing distance exists different.For the naked eye 3D display screen with different optimum viewing distances, Fig. 6 shows two of camera most
Good viewpoint position, camera 10 have fixed view angle theta, wherein the range of its view angle theta of the camera of position one covers naked just
The long side length D of eye 3D display screen, at this point, the camera 10 can be adopted just if the optimum viewing distance of naked eye 3D display screen is h
Collect the full frame test pictures of naked eye 3D display screen, and when the optimum viewing distance of naked eye 3D display screen is lower than h, it is clear that it is corresponding
The visual angle of camera needs to be greater than θ, and by the test pictures of naked eye 3D display screen be contracted to test long side length be d when,
Corresponding camera is located at position two, at this time could acquire completely test pictures, and corresponds to the naked eye 3D display screen
Optimum viewing distance H.The naked eye 3D display screen for being H clearly for optimum viewing distance, only when the long side length of test pictures is less than d,
Visual angle is that the camera of θ could acquire completely test pictures, wherein there are mathematical relationshipsWherein,
L is the interpupillary distance of human eye, thus about 60cm is obtainedOptionally, the scaling of test pictures is answered small
InIt can guarantee that the test pictures reduced are entirely located in camera visual angle, in this way convenient for calculating diminution
The center of test pictures and center line.
Embodiment three
The embodiment of the present invention three provides a kind of test device of naked eye 3D display screen, and Fig. 7 is that the embodiment of the present invention three mentions
A kind of structural schematic diagram of the test device of the naked eye 3D display screen supplied, with reference to Fig. 7, which includes: best view position
Determining module is set, for dollying head to the best view position of naked eye 3D display screen；Test pictures setup module, for setting
It sets naked eye 3D display screen and shows test pictures；Acquisition module, the test for being shown using camera acquisition naked eye 3D display screen
Picture；Computing module, for calculating the picture offset parameter of naked eye 3D display screen according to the collected test pictures of camera.
Wherein, the best view position determination module in the test device can be simple mechanical structure, by manual
Mode carries out position adjusting, to guarantee that camera is moved to best view position, is also possible to control motor by driver,
Camera is set to be moved to the electric structure of best view position by motor mechanically moving structure, wherein best view position can be with
It is shown in real time on a display screen by camera collecting test picture, and by it, to be determined and be taken the photograph by user as visual feedback
As head is moved to best view position.In addition, best view determining module, test pictures setup module, acquisition module and calculating
Module can integrate in a driver or test software, thus facilitate the measurement to naked eye 3D display screen.
The test device for the naked eye 3D display screen that the embodiment of the present invention three provides will be imaged by best view determining module
Head is moved to the best view position of naked eye 3D display screen, is then shown by test pictures setup module setting naked eye 3D display screen
Test pictures make test pictures covering part naked eye 3D display screen, and, center identical as naked eye 3D display screen length-width ratio is overlapped, and
Guarantee that test pictures are in the angular field of view of camera, and then acquired module collecting test picture, passes through computing module meter
The picture offset parameter for calculating the test pictures of naked eye 3D display screen, can solve when the optimum viewing distance of naked eye 3D display screen is lower
When, camera visual angle does not acquire whole test pictures because smaller, so that tester can not accurately will be in camera
The heart and naked eye 3D display screen center align, the problem of then detection, without in the progress lower naked eye 3D of optimum viewing distance
Expensive wide-angle camera is bought when the detection of display screen.The test method of naked eye 3D display screen provided in an embodiment of the present invention,
Can satisfy naked eye 3D display screen optimum viewing distance it is lower when test needs, realize the naked eye 3D display in the case of different sighting distances
The test of screen improves testing efficiency, while having saved testing cost.
Fig. 8 is the structural schematic diagram of the test device for another naked eye 3D display screen that the embodiment of the present invention three provides, ginseng
Fig. 8 is examined, the test device of the naked eye 3D display screen further includes judgment module, and wherein judgment module is for judging naked eye 3D display screen
Whether it is entirely located in the visual angle of camera.
It, can be directly by test pictures when judgment module judges that naked eye 3D display screen is entirely located in the visual angle of camera
Setup module carries out the display of test pictures, and test pictures are located in camera angular field of view at this time, can be carried out by acquisition module
It is effectively tested picture acquisition.
Further, with reference to Fig. 8, the test device of the naked eye 3D display screen further includes Zoom module, and Zoom module is used for
Judgment module judge naked eye 3D display screen not be entirely located in the visual angle of camera when, etc. length-width ratios reduce test picture
Face effectively acquires whole test pictures until test pictures are in the angular field of view of camera to meet acquisition module, then
The picture offset parameter of naked eye 3D display screen is obtained by computing module.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (13)
1. a kind of test method of naked eye 3D display screen characterized by comprising
Dollying head is to the best view position of naked eye 3D display screen；
The naked eye 3D display screen is set and shows test pictures；Wherein, the test pictures have with the naked eye 3D display screen
Identical length-width ratio, and the center of the test pictures is overlapped with the center of the naked eye 3D display screen, the test pictures are covered
Naked eye 3D display screen described in cover；The test pictures are in the angular field of view of the camera；
The test pictures that the naked eye 3D display screen is shown are acquired using the camera；
According to the collected test pictures of the camera, the picture offset parameter of the naked eye 3D display screen is calculated.
2. test method according to claim 1, which is characterized in that described according to the collected survey of the camera
Picture is tried, the picture offset parameter of the naked eye 3D display screen is calculated, comprising:
According to the collected test pictures of the camera, it is fitted the center boundary line segment of 3D display；
The center boundary line segment of the 3D display is compared with standard line of demarcation, calculates the picture of the naked eye 3D display screen
Offset parameter.
3. test method according to claim 1, which is characterized in that surveyed in the setting naked eye 3D display screen display
Before examination picture, further includes:
Judge whether the naked eye 3D display screen is entirely located in the visual angle of the camera, if so, it is described naked to execute setting
Eye 3D display screen shows the operation of test pictures.
4. test method according to claim 1, which is characterized in that surveyed in the setting naked eye 3D display screen display
Before examination picture, further includes:
Judge whether the naked eye 3D display screen is entirely located in the visual angle of the camera, if it is not, then etc. length-width ratios reduce institute
Test pictures are stated to be in the test pictures in the angular field of view of the camera.
5. test method according to claim 1, which is characterized in that the test pictures and the naked eye 3D display screen contract
The ratio of putting is less thanWherein, D be the naked eye 3D display screen long side length, H be the naked eye 3D display screen most
Good sighting distance, L are eye distance, and θ is the visual angle of the camera.
6. test method according to claim 1, which is characterized in that the dollying head to naked eye 3D display screen is most
Good viewpoint position, comprising:
The camera is moved to the corresponding best camera shooting head plane of the naked eye 3D display screen optimum viewing distance；
In the best camera shooting head plane, the position of the camera is adjusted, makes the camera center in the naked eye 3D
The projection of plane is overlapped with the center of the naked eye 3D display screen where display screen.
7. test method according to claim 2, which is characterized in that the standard line of demarcation is in the camera
The crosshair of the heart.
8. test method according to claim 2, which is characterized in that described according to the collected survey of the camera
Picture is tried, the center boundary line segment of 3D display is fitted, comprising:
Extract the pixel of predeterminable area in color crossover region in the collected test pictures of the camera；Wherein, described
The collected test pictures of camera are that left and right view is monochromatic overlapping figure, and is overlapped between the view of left and right for color
Area；
According to the center of the Pixel fit 3D display of predeterminable area boundary line segment.
9. test method according to claim 8, which is characterized in that the predeterminable area includes default row, presets column, is pre-
If the region of spaced rows or preset interval column.
10. test method according to claim 1, which is characterized in that the picture offset parameter includes off-centring ginseng
Several and angle offset parameter.
11. a kind of test device of naked eye 3D display screen characterized by comprising
Best view position determination module, for dollying head to the best view position of naked eye 3D display screen；
Test pictures setup module shows test pictures for the naked eye 3D display screen to be arranged；
Acquisition module, for acquiring the test pictures that the naked eye 3D display screen is shown using the camera；
Computing module, for calculating the picture of the naked eye 3D display screen according to the collected test pictures of the camera
Face offset parameter.
12. the test device of naked eye 3D display screen according to claim 11, which is characterized in that it further include judgment module,
The judgment module is for judging whether the naked eye 3D display screen is entirely located in the visual angle of the camera.
13. the test device of naked eye 3D display screen according to claim 12, which is characterized in that it further include Zoom module,
The Zoom module is used to judge that the naked eye 3D display screen is not entirely located in the camera in the judgment module
When in visual angle, etc. length-width ratios reduce the test pictures and be in the test pictures in the angular field of view of the camera.
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