CN106454333A - Detection device of 3D display device - Google Patents
Detection device of 3D display device Download PDFInfo
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- CN106454333A CN106454333A CN201611001120.9A CN201611001120A CN106454333A CN 106454333 A CN106454333 A CN 106454333A CN 201611001120 A CN201611001120 A CN 201611001120A CN 106454333 A CN106454333 A CN 106454333A
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- array ccd
- ccd camera
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- detection means
- area array
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
Abstract
The invention provides a detection device of a 3D display device. The 3D display device comprises a 3D display screen, the 3D display screen comprises an image display surface, the detection device comprises a moving component, at least one area array CCD camera and a processor, the moving component comprises a first moving shaft and a second moving shaft, the first moving shaft and the second moving shaft are connected and are vertical and are parallel to the image display surface; the area array CCD camera is installed on the moving component, the moving component controls the area array CCD camera to move along a direction vertical to the image display surface and/or along a direction parallel to the image display surface, and the at least one area array CCD camera is used for recording light intensity values collected by the area array CCD camera on scanning positions when the3D display device displays different images; and a processor is connected with the area array CCD camera and the moving component for controlling the movement of the moving component and the calculating the data acquired by the area array CCD camera. The detection precision of the detection device is relatively high.
Description
Technical field
The application is related to the performance detection field of 3D display device, in particular to a kind of detection of 3D display device
Device.
Background technology
It is that the view with parallax is projected space zones of different that what 3D showed realizes principle, and its optical characteristics is in regard by force
Angle dependence.
In prior art, the equipment for evaluating the performance of 3 d display device is mainly the detection dress of 2D display device
Put.These detection means include that the outer corner measurement equipment that traditional 2D shows (measures YC meter collocation outer corner measurement machine as put
Platform) and cone optical measuring instrument etc..Outer corner measurement equipment (point measurement YC meter collocation outer corner measurement board) or cone flash ranging
Amount instrument can be in 3D display device difference position, by brightness and the chroma scanning of certain angular field of view, needed for measuring
The distribution of data, and derive the performance parameter of 3D display device on the basis of this data, such as optimum viewing distance, 3D crosstalk and
Viewing freedom etc..
The detection means of above-mentioned 2D display device is primarily present following several when the performance parameter of 3D display device is detected
Individual problem：
1st, measure measuring instrument (such as point measurement YC meter or cone optical measuring instrument) used and can only be directed to 3D display dress
Brightness data collection is made in the local that puts, and pass through performance parameter (as 3D crossfire value and viewing freedom) that local data calculates and
The performance of 3D display device can not be accurately reflected.
There is mechanical corner error in the corner board for the 2nd, carrying point measuring instrument, this fractional error can show dress with 3D in itself
The increase of the size that puts and the increase of sighting distance are progressively amplified in the calculating of follow-up performance parameter (as optimum viewing distance)；Although cone light
Measuring instrument can to a certain degree reduce visual angle error, but its popularization of its expensive price reduction.
3rd, equipment can only obtain a series of numerals by the measurement of YC, as a result not directly perceived enough, readable not strong, especially
Which is unfavorable for that research and development are improved, and lacks the overall situation grasp to whole user's space.
Content of the invention
The main purpose of the application is to provide a kind of detection means of 3D display device, is shown with solving 3D in prior art
The detection means of showing device can accurately not calculate the problem of the performance parameter of 3D display device.
To achieve these goals, according to the one side of the application, there is provided a kind of detection means of 3D display device,
The 3D display device includes 3D display screen, and above-mentioned 3D display screen includes picture display face, and the detection means includes：Moving assembly,
Including the first shifting axle and the second shifting axle, above-mentioned first shifting axle is connected and vertical with above-mentioned second shifting axle, and above-mentioned first
Shifting axle is parallel with above-mentioned picture display face；At least one area array CCD camera, on above-mentioned moving assembly, above-mentioned movement
Component controls above-mentioned area array CCD camera along perpendicular to the movement of the direction of above-mentioned picture display face and/or along parallel to above-mentioned image
The direction movement of display surface, wherein, at least one above-mentioned area array CCD camera is used for recording above-mentioned 3D display device in display difference
Image when, the light intensity value that above-mentioned area array CCD camera is collected at each scan position；Processor, with above-mentioned area array CCD camera
And moving assembly electrical connection, for control above-mentioned moving assembly movement and to above-mentioned area array CCD camera obtain data
Calculated.
Further, above-mentioned detection device also includes：Pedestal, is arranged on moving away from above-mentioned second for above-mentioned first shifting axle
On the surface of moving axis, each above-mentioned area array CCD camera is on the surface away from above-mentioned first shifting axle of said base, above-mentioned
First shifting axle is with above-mentioned second shifting axle control said base along perpendicular to the movement of the direction of above-mentioned picture display face and/or edge
Direction parallel to above-mentioned picture display face is moved.
Further, above-mentioned detection device includes a black and white area array CCD camera, and above-mentioned black and white area array CCD camera is arranged
In said base, above-mentioned black and white area array CCD camera is used for recording above-mentioned 3D display device when different images are shown, above-mentioned
The light intensity value that area array CCD camera is collected at each scan position.
Further, above-mentioned detection device also includes：At least one color planar array CCD camera, is arranged in said base
And with above-mentioned black and white area array CCD camera interval setting, above-mentioned color planar array CCD camera is used for shooting above-mentioned 3D display device and showing
Image.
Further, above-mentioned detection device also includes：Two color planar array CCD cameras, are arranged in said base and set
Put in the same side of above-mentioned black and white area array CCD camera or both sides, each above-mentioned color planar array CCD camera shows for shooting above-mentioned 3D
The image that device shows.
Further, two above-mentioned color planar array CCD cameras are separately positioned on the both sides of above-mentioned black and white area array CCD camera.
Further, above-mentioned processor includes：First crossfire value computing unit, above-mentioned first crossfire value computing unit is used for
3D crossfire value at each scan position above-mentioned is calculated according to the light intensity value at each scan position above-mentioned.
Further, above-mentioned processor also includes：First deviant acquiring unit, with above-mentioned first crossfire value computing unit
Electrical connection, for calculating viewing Center Offset according to the 3D crossfire value at each scan position above-mentioned；Viewing freedom is obtained
Unit, is electrically connected with above-mentioned first crossfire value computing unit, for being calculated according to the 3D crossfire value at each scan position above-mentioned
Viewing freedom；Optimum viewing distance acquiring unit, is electrically connected with above-mentioned viewing freedom acquiring unit, for according to above-mentioned viewing certainly
Optimum viewing distance is obtained by degree.
Further, above-mentioned processor also includes：Second crossfire value computing unit, with above-mentioned color planar array CCD camera electricity
Connection, for calculating the crossfire value of each measurement point on above-mentioned 3D display screen.
Further, above-mentioned processor also includes：Second deviant computing unit, with above-mentioned color planar array CCD camera electricity
Connection, for calculating the distance of demarcation line and median vertical line in parallel center line of the image of above-mentioned color planar array CCD camera shooting,
That is the second deviant, central point of the above-mentioned median vertical line on above-mentioned picture display face and through above-mentioned picture display face, and on
State median vertical line vertical with above-mentioned first shifting axle, above-mentioned parallel center line is on above-mentioned picture display face and aobvious through above-mentioned image
Show the central point in face, and above-mentioned parallel center line is vertical with above-mentioned median vertical line；Rotation angle calculating unit, with above-mentioned colour plane battle array
CCD camera is electrically connected, for calculating the angle of above-mentioned demarcation line and above-mentioned median vertical line, the i.e. anglec of rotation.
Further, above-mentioned processor also includes：First preset range computing unit, obtains list with above-mentioned first deviant
Unit's electrical connection, for calculating the preset range of above-mentioned second deviant according to above-mentioned viewing Center Offset；Second preset range
Computing unit, is electrically connected with above-mentioned viewing freedom acquiring unit, for calculating the above-mentioned anglec of rotation according to above-mentioned viewing freedom
The preset range of degree.
Further, above-mentioned 3D display screen includes 2D display screen and 3D display module, and 2D display screen includes that above-mentioned image shows
Show face, above-mentioned processor also includes：First comparing unit, with above-mentioned first preset range computing unit and above-mentioned second skew
Value computing unit electrical connection, is compared for the preset range to above-mentioned second deviant with above-mentioned second deviant；First
Judging unit, is electrically connected with above-mentioned first comparing unit, and the comparative result for being obtained according to above-mentioned first comparing unit judges
Above-mentioned 2D display screen and above-mentioned 3D display module whether accurate contraposition.
Further, above-mentioned 3D display screen includes 2D display screen and 3D display module, and 2D display screen includes that above-mentioned image shows
Show face, above-mentioned processor also includes：Second comparing unit, with above-mentioned second preset range computing unit and the above-mentioned anglec of rotation
Computing unit is electrically connected, and is carried out for the preset range rotation angle calculating unit to the above-mentioned anglec of rotation with the above-mentioned anglec of rotation
Relatively；Second judging unit, is electrically connected with above-mentioned second comparing unit, for the comparison for being obtained according to above-mentioned second comparing unit
As a result judge above-mentioned 2D display screen and above-mentioned 3D display module whether accurate contraposition.
Further, above-mentioned moving assembly also includes：First group of motors, is arranged on above-mentioned first shifting axle, for leading to
Cross and control the work of above-mentioned first shifting axle to control above-mentioned area array CCD camera to move along the direction parallel to above-mentioned picture display face
Dynamic；Second group of motors, is arranged on above-mentioned second shifting axle, for above-mentioned to control by controlling above-mentioned second shifting axle to work
Area array CCD camera is along perpendicular to the movement of the direction of above-mentioned picture display face.
Further, above-mentioned processor also includes：Displacement control unit, with above-mentioned first group of motors and above-mentioned second electricity
Unit is electrically connected, and above-mentioned displacement control unit is used for controlling the work of above-mentioned first group of motors and above-mentioned second group of motors.
Further, above-mentioned detection device also includes：Object stage, and the above-mentioned parallel and interval setting of first shifting axle, on
State 3D display device to be placed on above-mentioned object stage, and the contact surface with above-mentioned object stage of above-mentioned 3D display device and above-mentioned figure
As display surface is parallel and relative.
The technical scheme of application the application, the CCD camera of face battle array is arranged on moving assembly, by the control of moving assembly
The CCD camera of face battle array is along perpendicular to the movement of the direction of above-mentioned 3D display screen and along the direction shifting parallel with above-mentioned first shifting axle
Dynamic, the CCD camera of such at least one face battle array is in moving process, and the light that the whole 3D display screen of collection bore hole sends is at each
The light intensity of scan position is by point to line and by the light distribution in the whole plane of scanning motion region of the generation of line to face, subsequently permissible
3D crosstalk distribution in scanning plane, optimum viewing distance and other performance parameters are accurately calculated according to light distribution.Due to face battle array
The light intensity that CCD is collected is the light for being sent based on whole screen, and therefore, the detection degree of accuracy of the detection means is greatly improved, and
And the accuracy of the follow-up result of calculation for being obtained according to the light intensity is also greatly improved.
Description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application shows
Meaning property and its is illustrated for explaining the application embodiment, does not constitute the improper restriction to the application.In the accompanying drawings：
Fig. 1 shows a kind of structural representation of the detection means of embodiment of the application；
Fig. 2 shows a kind of structural representation of the detection means of embodiment of the application；
Fig. 3 shows the 3D crosstalk scattergram of the scanning area that detection means is obtained in another kind of embodiment of the application；
Fig. 4 shows and is obtained by the image that a color planar array CCD camera shoots in the another embodiment of the application
3D crosstalk scattergram on 3D screen；And
Fig. 5 shows the figure that in another embodiment of the application, in detection means, a color planar array CCD camera shoots
As schematic diagram.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling：
1st, object stage；2nd, 3D display device；3rd, the first shifting axle；4th, the second shifting axle；5th, the first group of motors；6th, the second electricity
Unit；7th, pedestal；8th, black and white area array CCD camera；9th, color planar array CCD camera；10th, scanning area；01st, demarcation line；02nd, vertical
Center line；03rd, parallel center line.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technology 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 description specific embodiment, and is not intended to restricted root
Illustrative embodiments according to 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, which indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the detection means of 3D display device of the prior art can accurately not calculate 3D
The performance parameter of display device, in order to solve technical problem as above, present applicant proposes a kind of detection dress of 3D display device
Put.
In a kind of typical embodiment of the application, there is provided a kind of detection means of 3D display device, such as Fig. 1 and figure
Shown in 2,3D display device 2 includes 3D display screen, and 3D display screen includes picture display face, the detection means include moving assembly,
At least one area array CCD camera and processor.Wherein, moving assembly includes the first shifting axle 3 and the second shifting axle 4, above-mentioned
One shifting axle 3 is connected and vertical with above-mentioned second shifting axle 4, and above-mentioned first shifting axle 3 is parallel with above-mentioned picture display face；Face battle array
CCD camera is on above-mentioned moving assembly, and above-mentioned first shifting axle 3 controls area array CCD camera edge and above-mentioned first shifting axle
Parallel direction movement (X-axis in Fig. 1 and Fig. 2), that is, move along the direction parallel to above-mentioned picture display face, above-mentioned shifting
The second shifting axle 4 in dynamic component controls area array CCD camera along direction movement (Fig. 1 and Fig. 2 parallel with above-mentioned second shifting axle
In Z axis), i.e., along perpendicular to above-mentioned 3D display device direction move, wherein, at least one above-mentioned area array CCD camera is used for
Above-mentioned 3D display device 2 is recorded when different images are shown, the light that above-mentioned area array CCD camera is collected at each scan position
Intensity values；Processor is electrically connected with above-mentioned area array CCD camera and moving assembly, for control above-mentioned moving assembly movement and
The data obtained by above-mentioned area array CCD camera are calculated.
In above-mentioned detection means, the CCD camera of face battle array is arranged on moving assembly, by the chain of command battle array of moving assembly
CCD camera along perpendicular to above-mentioned picture display face direction movement and along with parallel to picture display face direction movement,
The CCD camera of such at least one face battle array is in moving process, and the light that the whole 3D display device of collection bore hole sends is at each
The light intensity of scan position, by point is to line and (abbreviation scanning area, as Fig. 2 institute by the whole plane of scanning motion region of the generation of line to face
Show, the scanning area 10 is vertical with picture display face) in light distribution, subsequently can accurately be calculated according to light distribution
3D crosstalk distribution, optimum viewing distance and other performance parameters in scanning plane.As the light intensity that area array CCD is collected is filled based on whole
The light for sending is put, therefore, the detection degree of accuracy of the detection means is greatly improved, and the calculating for subsequently being obtained according to the light intensity
As a result accuracy is also greatly improved.
Area array CCD component in the application is can be arranged directly on moving assembly, it is also possible to be arranged on shifting by pedestal
On dynamic component, those skilled in the art can be arranged on area array CCD component on pedestal according to practical situation or be arranged on shifting
On dynamic component.
In order to more easily control the movement of multiple area array CCD components simultaneously, in a kind of embodiment of the application, such as Fig. 1
With shown in Fig. 2, above-mentioned detection device also includes pedestal 7, and the pedestal 7 is arranged on above-mentioned first shifting axle 3, each above-mentioned face battle array
CCD camera installed in above-mentioned first shifting axle 3 the surface away from above-mentioned second shifting axle 4 on, above-mentioned first shifting axle 3 with upper
State the second shifting axle 4 and control said base 7 along perpendicular to the movement of the direction of above-mentioned picture display face and/or along aobvious parallel to image
Show the parallel direction movement in face.
Pedestal in the application is may be mounted on the first shifting axle, it is also possible on the second shifting axle, work as installation
When on the first shifting axle, the second shifting axle can control the first shifting axle to move, and then moving base can be carried to move；Work as pedestal
When on the second shifting axle, the first shifting axle can control the second shifting axle to move, and then can the drive of the second shifting axle
Pedestal is moved.
In a kind of embodiment of the application, as shown in Figures 1 and 2, above-mentioned detection device includes a black and white area array CCD phase
Machine 8, above-mentioned black and white area array CCD camera 8 is arranged in said base 7, and above-mentioned black and white area array CCD camera 8 is used for recording above-mentioned 3D
Display device when different images are shown, the light intensity value that above-mentioned area array CCD camera is collected at each scan position.Using black
Flour array CCD camera 8 obtains the light intensity value at scan position, can reduce the cost for obtaining light intensity value.
In order that the detection means can also detect whether the 2D display screen in 3D display screen is had with 3D display module
Good para-position, as shown in Figures 1 and 2, the preferred above-mentioned detection device of the application also includes at least one color planar array CCD camera
9, be arranged on pedestal 7 and with above-mentioned 8 interval setting of black and white area array CCD camera, above-mentioned color planar array CCD camera 9 be used for shoot
The image that above-mentioned 3D display device shows.
When checking the para-position mated condition between 3D module and 2D display screen, allow 3D display screen play left and right view first to be
Monochromatic composite diagram (here by taking the red right blue images in a left side as an example)；Then, colorful CCD camera is reduced to appropriate height, and will
One color planar array CCD camera moves to the center of picture display face, and optical axis passes perpendicularly through the center of picture display face, with this
Center image-fetching of the colored area array CCD to picture display face.If 3D module is coordinated with the para-position of 2D display screen met the requirements, i.e., left
Right in skew dough-making powder, rotation pitch angle control is in predetermined scope, and the picture of intake will be displayed as left red right blue picture,
Red indigo plant boundary line is through the center of picture display face and vertical with view direction (i.e. the parallel direction with the second shifting axle).
In another kind of embodiment of the application, as shown in figure 1, as shown in Figures 1 and 2, above-mentioned detection device also includes two
Individual color planar array CCD camera 9, the same side for the above-mentioned black and white area array CCD camera 8 being arranged in said base 7 or both sides, each on
Color planar array CCD camera 9 is stated for shooting the image that above-mentioned 3D display device shows.
When above-mentioned detection device includes two color planar array CCD cameras, mould not only can be shown with 3D to 2D display screen
The alignment situation of group is detected, can also be passed through the right and left eyes that two color planar array CCD cameras simulate people, and then can be simulated
Eyes obtain the situation of image at the different sighting distances, judge the setting of 3D display screen whether conformance with standard.Specific simulation process
For：The position of adjustment pedestal, and then the distance between color planar array CCD camera and 3D display screen is adjusted, make colored area array CCD phase
Machine moves to suitable average interpupillary distance (such as 65mm) and viewing sighting distance, two color planar array CCD camera difference shooting picture.If
Bore hole 3D display screen meets design standard, and the bilateral color camera monochrome image higher by purity is obtained, conversely, the image for obtaining
Will appear from the colour mixture situation in local or big portion；If the picture display face of 3D display screen alternately plays black and white screen, can also calculate
The crosstalk Distribution value on 3D display screen that watches at the viewpoint of left and right.
In order to more easily adjust position and the relative position of area array CCD camera and color planar array CCD camera, such as scheme
1 with shown in Fig. 2, and in a kind of embodiment of the application, two color planar array CCD cameras are separately positioned on above-mentioned area array CCD camera
Both sides.
And in another embodiment, the relative position of two color planar array CCD cameras is fixed, two colour plane battle arrays
CCD camera synchronizing moving is moved perpendicular to the direction of above-mentioned picture display face and/or the direction parallel to above-mentioned picture display face
Mobile.
In another kind of embodiment of the application, above-mentioned processor includes the first crossfire value computing unit, above-mentioned first crosstalk
Value computing unit is used for calculating the 3D crossfire value at each scan position above-mentioned according to the light intensity value at each scan position above-mentioned.
Specifically, formula can be adoptedCalculate, wherein, χ3DiRepresent i-th
The 3D crossfire value of individual view, L represents the relative light intensity value (L that scanning is measuredBIt is data that completely black picture is measured, Lj represents j-th
The relative light intensity value of view, Li represents the relative light intensity value of i-th view.
In order to the distribution situation of analysis crossfire value directly perceived, in a kind of embodiment of the application, according to the above-mentioned first string
The 3D crossfire value at each scan position that value computing unit is obtained is disturbed, the crosstalk scattergram of scanning area, such as Fig. 3 can be obtained
Shown (due to being represented with cromogram, so the change of color can only be represented with gray scale), in Fig. 3, abscissa represents Fig. 2
In scanning area 10 in X-direction displacement, vertical coordinate represents the displacement of Z-direction in the scanning area 10 in Fig. 2
(distance is the distance away from 3D display screen, therefore, the coordinate of the longitudinal axis be from large to small).
In order to obtain optimum viewing distance, viewing freedom and the viewing Center Offset of display device, the application is preferred
Above-mentioned processor also includes optimum viewing distance acquiring unit, the first deviant acquiring unit and viewing freedom acquiring unit.Its
In, the first deviant acquiring unit is electrically connected with above-mentioned first crossfire value computing unit, for according to each scan position above-mentioned
The 3D crossfire value at place obtains viewing Center Offset, and the viewing Center Offset represents the 3D rendering viewing on 3D crosstalk scattergram
The level disparity at center and the center of picture display face；Viewing freedom acquiring unit and above-mentioned first crossfire value computing unit electricity
Connection, for obtaining viewing freedom according to the 3D crossfire value at each scan position above-mentioned, 3D crossfire value is less than threshold value (such as
10%) length range of horizontal direction when；Optimum viewing distance acquiring unit is electrically connected with above-mentioned viewing freedom acquiring unit, is used for
Optimum viewing distance is obtained according to the viewing freedom at each scan position above-mentioned, the sighting distance of viewing freedom maximum in horizontal direction
It is defined as optimum viewing distance.
In a kind of embodiment of the application, the processor also includes the second crossfire value computing unit, using two colored CCDs
Human eye simulated by camera, and 3D display screen alternately plays black and white screen, and shooting 3D display screen shows and (really shown by picture display face
Show) image, the second crossfire value computing unit can calculate that (i.e. at the position of two colorful CCD cameras) at the viewpoint of left and right watch
Crosstalk distribution on 3D display screen, detailed process is alternately to play black and white screen by 3D display screen, colored area array CCD phase
Machine is put into the position of left view point or right viewpoint and shoots monochrome test pattern, obtains the corresponding light intensity value of each point on 3D display screen, root
According to formula(implication of each letter representation is as above recorded) calculates
Obtain the crossfire value of each point on 3D display screen, and then obtain the string of 3D display screen at (computer simulation is obtained) viewpoint
Scattergram is disturbed, and the image shown in Fig. 4 is obtained (due to being represented with cromogram, so the change of color can only be represented with gray scale
Change), the in figure has marked the crossfire value highest position A position B minimum with crosstalk.
In another kind of embodiment in the application, in order to more accurately judge that whether 2D display screen is accurately right with 3D module
Position, it is monochromatic composite diagram (here by taking the red right blue images in a left side as an example) that picture display face plays left and right view, then, by colour
CCD camera is reduced to appropriate height, and a color planar array CCD camera is moved to the center of picture display face, and optical axis hangs down
Direct puncture crosses the center of picture display face, with center image-fetching of this color planar array CCD camera to whole image display surface.Using place
Reason device makees image procossing to this red blueprint, and the processor also includes the second deviant computing unit and rotation angle calculating unit.
Second deviant computing unit is electrically connected with above-mentioned color planar array CCD camera, for calculating the shooting of above-mentioned color planar array CCD camera
Image demarcation line 01 and median vertical line 02 parallel center line 03 distance, i.e. the second deviant D, the D=in such as Fig. 5
14.40mm, as shown in Figure 5 above-mentioned median vertical line 02 through above-mentioned picture display face central point and with above-mentioned first shifting axle hang down
Directly, and above-mentioned median vertical line 02 is on above-mentioned picture display face, above-mentioned parallel center line 03 on above-mentioned picture display face and is passed through
The central point of above-mentioned picture display face, and above-mentioned parallel center line 03 is vertical with above-mentioned median vertical line 02, the demarcation line 01 of image is
Boundary line for two kinds of colors on image is (due to showing colour, so Fig. 5 is the figure that color planar array CCD camera shoots
The schematic diagram of picture, in the figure, with a kind of color of the Regional Representative of filling, another color of Regional Representative of blank, this two
The boundary line in individual region is the demarcation line 01 of image)；Rotation angle calculating unit is electrically connected with above-mentioned color planar array CCD camera
Connect, for calculating the demarcation line 01 of the image of above-mentioned color planar array CCD camera shooting and the angle theta of above-mentioned median vertical line 02, Fig. 5
In anglec of rotation θ=9.68 °.
In order to more accurately judge 2D display screen and 3D module whether accurate contraposition, in a kind of embodiment of the application,
Above-mentioned processor also includes the first preset range computing unit and the second preset range computing unit, wherein, the first preset range
Computing unit is electrically connected with above-mentioned first deviant acquiring unit, for calculating above-mentioned second according to above-mentioned viewing Center Offset
The preset range of deviant；Second preset range computing unit is electrically connected with above-mentioned viewing freedom acquiring unit, for basis
Above-mentioned viewing freedom calculates the preset range of the above-mentioned anglec of rotation.As the second deviant is just become with viewing center offset
Than, the absolute value of the anglec of rotation is inversely proportional to viewing freedom, therefore, according to viewing Center Offset calculate above-mentioned second
The preset range of deviant is more accurate, and the preset range of the above-mentioned anglec of rotation for being determined according to above-mentioned viewing freedom is also more accurate
Really.
In another kind of embodiment of the application, above-mentioned 3D display screen includes 2D display screen and 3D display module, and above-mentioned 2D shows
Display screen includes above-mentioned picture display face, and above-mentioned processor also includes the first comparing unit and the first judging unit, wherein, the first ratio
Electrically connect with above-mentioned first preset range computing unit and above-mentioned second deviant computing unit compared with unit, for above-mentioned
Two deviants are compared with the preset range of above-mentioned second deviant；First judging unit is electrically connected with above-mentioned first comparing unit
Connect, the comparative result for being obtained according to above-mentioned first comparing unit judges whether are above-mentioned 2D display screen and above-mentioned 3D display module
Accurate contraposition, when the second deviant and in the preset range of the second deviant, then it is assumed that 2D display screen and above-mentioned 3D show mould
Group accurate contraposition, conversely, then without accurate contraposition.
In order to judge 2D display screen and 3D module whether accurate contraposition, another kind of embodiment of the application further exactly
In, above-mentioned processor not only includes the first comparing unit and the first judging unit, also includes that the second comparing unit and second judges
Unit, wherein, the second comparing unit is electrically connected with above-mentioned second preset range computing unit and above-mentioned rotation angle calculating unit
Connect, be compared for the preset range rotation angle calculating unit to the above-mentioned anglec of rotation with the above-mentioned anglec of rotation；Second sentences
Disconnected unit is electrically connected with above-mentioned second comparing unit, and the comparative result for being obtained according to above-mentioned second comparing unit judges above-mentioned
2D display screen and above-mentioned 3D display module whether accurate contraposition, when the second deviant with the preset range of the second deviant,
And when the absolute value of the calculated anglec of rotation is in its preset range, then it is assumed that 2D display screen and above-mentioned 3D display module standard
Really para-position.Have in the anglec of rotation or the second deviant one not within a predetermined range when, then it is assumed that 2D display screen with upper
Stating 3D display module does not have accurate contraposition.
In the another embodiment of the application, as shown in Figures 1 and 2, above-mentioned moving assembly also include the first group of motors 5 with
Second group of motors 6, wherein, the first group of motors 5 is arranged on above-mentioned first shifting axle 3, for by controlling above-mentioned first movement
Axle 3 is worked to control above-mentioned area array CCD camera to move along the direction parallel to above-mentioned picture display face；Second group of motors 6 is arranged
On above-mentioned second shifting axle 4, for by controlling above-mentioned second shifting axle 4 to work to control above-mentioned area array CCD camera along vertical
The straight direction in above-mentioned picture display face is moved.
For the movement of more easily controlled motor group, in another embodiment of the application, above-mentioned processor is also wrapped
Displacement control unit is included, the displacement control unit is equal with above-mentioned first group of motors and above-mentioned second group of motors, above-mentioned displacement control
Unit processed is used for controlling the work of above-mentioned first group of motors and above-mentioned second group of motors.Displacement control unit is by control first
The work of group of motors and the second group of motors, and then control the work of the first shifting axle and the second shifting axle, control then area array CCD
The movement of camera.
In another kind of embodiment of the application, above-mentioned displacement control unit includes the first Bit andits control module and second displacement
Control module, wherein, the first Bit andits control module is electrically connected with the first group of motors, second displacement control module and the second group of motors
Electrical connection, the first Bit andits control module controls the work of the first group of motors, and second displacement module controls the work of the second group of motors.
In the another embodiment of the application, upper rheme first moves control module and/or displacement control unit passes through first
Driver is electrically connected with the first group of motors, and second moves control module and/or displacement control unit by the second driver and second
Group of motors is electrically connected.
In order to more easily test to 3D display device, in a kind of embodiment of the application, as Fig. 1 and Fig. 2 institute
Show, above-mentioned detection device also includes object stage 1, the object stage and the above-mentioned parallel and interval setting of first shifting axle 3, above-mentioned 3D shows
Showing device 2 is placed on above-mentioned object stage.
In order that those skilled in the art can clearly understand the technical scheme of the application, below with reference to tool
The embodiment of body is illustrated to the technical scheme of the application.
Embodiment
As shown in Figures 1 and 2, the detection means includes object stage 1, mobile group to the partial structural diagram of detection means
Part, the color planar array CCD camera 9 of black and white area array CCD camera 8,2 of pedestal 7,1 and a processor.
Wherein, moving assembly includes the first shifting axle 3, the second shifting axle 4, the first driver, the second driver, the first electricity
Unit 5 and the second group of motors 6；Pedestal is arranged on the surface away from the second shifting axle 4 of the first shifting axle 3,3 area array CCDs
Camera is installed on the surface away from the first shifting axle 3 of pedestal, and 2 color planar array CCD cameras 9 are located at black and white face battle array
The both sides of CCD camera 8, and the midpoint of the line of the two is black flour area array CCD camera, between 2 color planar array CCD cameras 9
Distance is 65mm.
Processor includes the first crossfire value computing unit, optimum viewing distance acquiring unit, the first deviant acquiring unit, viewing
Degree of freedom acquiring unit, the second crossfire value computing unit, the second deviant computing unit, rotation angle calculating unit, first pre-
Determine range calculation unit, the second preset range computing unit, the first comparing unit, the first judging unit, the second comparing unit,
Two judging units and displacement control unit, displacement control unit includes the first Bit andits control module and second displacement control module.
The annexation of all parts or unit with identical in the above, just repeat no more herein.
The work process of the detection means is：
1. the sweep limitss of black and white area array CCD camera 8, the first Bit andits control, according to the design parameter of 3D display screen, are set
Module is worked by controlling the first group of motors 5, and control black and white area array CCD camera 8 is along the direction parallel with above-mentioned first shifting axle 3
Mobile；Second displacement control module is by controlling the work of the second group of motors 6, and control black and white area array CCD camera 8 is along parallel with the
The direction movement of two shifting axles 4, and then Bit andits control module controls black and white area array CCD camera 8 to move in scanning area 10,
Play completely black and each view in this scanning area respectively individually white picture carries out receipts light to 3D display screen, obtains each picture and is sweeping
Relative light intensity value in the range of retouching.
First crossfire value computing unit according to the light intensity value at each scan position above-mentioned, using formulaThe 3D crossfire value at each scan position is calculated, each letter
The implication of representative is identical with above-mentioned record, just repeats no more herein.
2. optimum viewing distance acquiring unit, the first deviant acquiring unit and viewing freedom acquiring unit are according to 3D crosstalk
The scattergram (being drawn by the 3D crossfire value of each scan position) of value performs an analysis and obtains optimum viewing distance (vertical coordinate in Fig. 3
Position between 320mm and 330mm), Center Offset and viewing freedom, as shown in Figure 3.
3. control the first shifting axle 3 to drive with the second shifting axle 4 by the first displacement module and second displacement control module
Black and white area array CCD camera 8 moves to the position at the 3D rendering viewing center at optimal viewing sighting distance, with 8 light of black and white area array CCD camera
Axle is axis of symmetry, and the left and right view that the colorful CCD camera simulation human eye shooting 3D display screen of both sides is played is left black right image in vain,
3D viewing effect in optimum viewing distance can be checked by the colour mixture situation for observing picture.
Black and white screen is alternately played by 3D display screen, color planar array CCD camera is put into the position of left view point or right viewpoint
Put and shoot monochrome test pattern, the corresponding light intensity value of each point on 3D display screen is obtained, 3D is calculated according to corresponding light intensity value
Crosstalk distribution on display screen, obtains the image (the crosstalk scattergram on 3D display screen at a viewpoint) shown in Fig. 4.
4. it is monochromatic intersection chart (being the red right blue images in a left side here) that pair 3D display screen plays left and right view, then, by coloured silk
Color CCD camera is reduced to appropriate height, and a color planar array CCD camera 9 is moved to the center of 3D display screen, colour plane
The optical axis of array CCD camera 9 passes perpendicularly through the center (i.e. the center of picture display face) of 3D display screen, with this colored area array CCD
Center image-fetching of the camera 9 to picture display face.Image procossing is made to this red blueprint using processor, the second deviant computing unit
The second deviant and the anglec of rotation are calculated with rotation angle calculating unit.
First preset range computing unit is according to the calculated viewing Center Offset meter of the first deviant acquiring unit
Count in stating the preset range of the second deviant, the second preset range computing unit according to viewing freedom acquiring unit draw upper
State the preset range that viewing freedom calculates the above-mentioned anglec of rotation.
Second deviant is made comparisons by the first comparing unit with its preset range, the second comparing unit by the anglec of rotation and its
Deviant is made comparisons, the ratio that the first judging unit and the second judging unit are obtained according to the first comparing unit and the second comparing unit
Relatively result judges the alignment situation of 2D display screen and 3D display module.When the absolute value of the second deviant and the anglec of rotation is all at which
In predetermined scope, then it is assumed that 2D display screen and 3D display module accurate contraposition, conversely, then para-position is inaccurate.
The detection means of the present embodiment not only can obtain the light intensity value in the scanning plane of 3D display device exactly, also
3D crosstalk distribution in scanning plane, optimum viewing distance can be obtained out according to the light intensity value, furthermore it is also possible to 2D display screen and 3D
The alignment situation of display module does quantitative analysis, can also pass through the right and left eyes that two color planar array CCD cameras simulate people, enter
And the situation that eyes at the different sighting distances obtain image can be simulated, accurately judge the setting of 3D display screen whether conformance with standard.
As can be seen from the above description, the application the above embodiments achieve following technique effect：
In the detection means of the application, the CCD camera of face battle array is arranged on moving assembly, by the chain of command of moving assembly
The CCD camera of battle array is along perpendicular to the movement of the direction of above-mentioned 3D display screen and along the direction shifting parallel with above-mentioned first shifting axle
Dynamic, the CCD camera of such at least one face battle array is in moving process, and the light that the whole 3D display screen of collection bore hole sends is at each
The light intensity of scan position is by point to line and by the light distribution in the whole plane of scanning motion region of the generation of line to face, subsequently permissible
3D crosstalk distribution in scanning plane, optimum viewing distance and other performance parameters are accurately calculated according to light distribution.Due to face battle array
The light intensity that CCD is collected is the light for being sent based on whole screen, and therefore, the detection degree of accuracy of the detection means is greatly improved, and
And the accuracy of the follow-up result of calculation for being obtained according to the light intensity is also greatly improved.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.All within spirit herein and principle, made any repair
Change, equivalent, improvement etc., should be included within the protection domain of the application.
Claims (16)
1. a kind of detection means of 3D display device, it is characterised in that described 3D display device (2) include 3D display screen, described
3D display screen includes picture display face, and the detection means includes：
Moving assembly, including the first shifting axle (3) and the second shifting axle (4), the first shifting axle (3) and the described second movement
Axle (4) connects and vertical, and the first shifting axle (3) are parallel with described image display surface；
At least one area array CCD camera, on the moving assembly, the moving assembly controls the area array CCD camera
Edge is moved perpendicular to the direction movement of described image display surface and/or along the direction parallel to described image display surface, wherein, extremely
A few area array CCD camera is used for recording 3D display device (2) when different images are shown, the area array CCD
The light intensity value that camera is collected at each scan position；And
Processor, is electrically connected with the area array CCD camera and moving assembly, for control the moving assembly movement and
The data obtained by the area array CCD camera are calculated.
2. detection means according to claim 1, it is characterised in that the detection means also includes：
Pedestal (7), is arranged on the surface away from the second shifting axle (4) of the first shifting axle (3), each face battle array
CCD camera is arranged on the surface away from the first shifting axle (3) of pedestal (7), the first shifting axle (3) and institute
State the second shifting axle (4) and control described pedestal (7) along perpendicular to the movement of the direction of described image display surface and/or along parallel to institute
State the direction movement of picture display face.
3. detection means according to claim 2, it is characterised in that the detection means includes a black and white area array CCD
Camera (8), black and white area array CCD camera (8) are arranged on the pedestal (7), and black and white area array CCD camera (8) are used for
3D display device (2) are recorded when different images are shown, the area array CCD camera is collected at each scan position
Light intensity value.
4. detection means according to claim 3, it is characterised in that the detection means also includes：
At least one color planar array CCD camera (9), be arranged on the pedestal (7) upper and with black and white area array CCD camera (8)
Interval setting, described color planar array CCD camera (9) are used for shooting the image that 3D display device (2) show.
5. detection means according to claim 3, it is characterised in that the detection means also includes：
Two color planar array CCD cameras (9), are arranged on the pedestal (7) above and are arranged on black and white area array CCD camera (8)
The same side or both sides, each described color planar array CCD camera (9) be used for shoot the image that 3D display device (2) show.
6. detection means according to claim 5, it is characterised in that two color planar array CCD camera (9) set respectively
Put the both sides in black and white area array CCD camera (8).
7. detection means according to claim 4, it is characterised in that the processor includes：
First crossfire value computing unit, the first crossfire value computing unit is used for according to the light intensity at each scan position described
Value calculates the 3D crossfire value at each scan position described.
8. detection means according to claim 7, it is characterised in that the processor also includes：
First deviant acquiring unit, is electrically connected with the first crossfire value computing unit, for according to each scanning position described
The 3D crossfire value for putting place calculates viewing Center Offset；
Viewing freedom acquiring unit, is electrically connected with the first crossfire value computing unit, for according to each scanning position described
The 3D crossfire value for putting place calculates viewing freedom；And
Optimum viewing distance acquiring unit, is electrically connected with the viewing freedom acquiring unit, for being obtained according to the viewing freedom
Take optimum viewing distance.
9. detection means according to claim 8, it is characterised in that the processor also includes：
Second crossfire value computing unit, is electrically connected with the color planar array CCD camera (9), for calculating the 3D display screen
Each measurement point crossfire value.
10. detection means according to claim 9, it is characterised in that the processor also includes：
Second deviant computing unit, is electrically connected with the color planar array CCD camera (9), for calculating the colour area array CCD
The demarcation line (01) of the image that camera (9) shoots and median vertical line (02) in distance, i.e. second deviant of parallel center line (03),
The central point of median vertical line (02) on described image display surface and through described image display surface, and the median vertical line
(02) vertical with the first shifting axle (3), parallel center line (03) is on described image display surface and through described image
The central point of display surface, and the parallel center line (03) is vertical with the median vertical line (02)；And
Rotation angle calculating unit, is electrically connected with the color planar array CCD camera (9), for calculate the demarcation line (01) with
Angle, the i.e. anglec of rotation of median vertical line (02).
11. detection means according to claim 10, it is characterised in that the processor also includes：
First preset range computing unit, is electrically connected with the first deviant acquiring unit, for according to the viewing center
Deviant calculates the preset range of second deviant；And
Second preset range computing unit, is electrically connected with the viewing freedom acquiring unit, for according to the viewing freely
Degree calculates the preset range of the anglec of rotation.
12. detection means according to claim 11, it is characterised in that the 3D display screen includes that 2D display screen is aobvious with 3D
Show module, 2D display screen includes described image display surface, the processor also includes：
First comparing unit, is electrically connected with the first preset range computing unit and the second deviant computing unit,
It is compared for the preset range to second deviant with second deviant；And
First judging unit, is electrically connected with first comparing unit, for the comparison for being obtained according to first comparing unit
As a result judge the 2D display screen and the 3D display module whether accurate contraposition.
13. detection means according to claim 12, it is characterised in that the 3D display screen includes that 2D display screen is aobvious with 3D
Show module, 2D display screen includes described image display surface, the processor also includes：
Second comparing unit, is electrically connected with the second preset range computing unit and the rotation angle calculating unit, is used
It is compared in the preset range rotation angle calculating unit to the anglec of rotation with the anglec of rotation；And
Second judging unit, is electrically connected with second comparing unit, for the comparison for being obtained according to second comparing unit
As a result judge the 2D display screen and the 3D display module whether accurate contraposition.
14. detection means according to claim 1, it is characterised in that the moving assembly also includes：
First group of motors (5), is arranged on the first shifting axle (3), for by controlling described first shifting axle (3) work
To control the area array CCD camera to move along the direction parallel to described image display surface；And
Second group of motors (6), is arranged on the second shifting axle (4), for by controlling described second shifting axle (4) work
To control the area array CCD camera along perpendicular to the movement of the direction of described image display surface.
15. detection means according to claim 14, it is characterised in that the processor also includes：
Displacement control unit, is electrically connected with the first group of motors (5) and second group of motors (6), the Bit andits control
Unit is used for controlling the work of the first group of motors (5) and second group of motors (6).
16. detection means according to claim 1, it is characterised in that the detection means also includes：
Object stage (1), with the first shifting axle (3) parallel and interval setting, 3D display device (2) are placed on the load
On thing platform (1), and the 3D display device (2) parallel with described image display surface with the contact surface of the object stage (1) and
Relative.
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