CN106488211B - The bearing calibration and system of stereoscopic display device - Google Patents

The bearing calibration and system of stereoscopic display device Download PDF

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Publication number
CN106488211B
CN106488211B CN201510542549.8A CN201510542549A CN106488211B CN 106488211 B CN106488211 B CN 106488211B CN 201510542549 A CN201510542549 A CN 201510542549A CN 106488211 B CN106488211 B CN 106488211B
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display device
stereoscopic display
picture
parameter
stereo
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CN106488211A (en
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赖敬文
刘志愿
龚健
宋磊
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Shenzhen Super Technology Co Ltd
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Shenzhen Super Technology Co Ltd
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Abstract

The present invention proposes the bearing calibration and system of a kind of stereoscopic display device, the correction system of its stereoscopic display device includes stereoscopic display device, the correction system of filming apparatus and stereoscopic display device, the correction system of stereoscopic display device further includes image acquisition unit, crosstalk fringe detection unit, computing unit and parameter acquiring unit, image acquisition unit is located at the stereo-picture shown when at least two fixed positions for obtaining stereoscopic display device, crosstalk fringe detection unit is used to detect the crosstalk striped in the stereo-picture, Dip countion unit is used to calculate the stripe angle of the crosstalk striped detected, parameter acquiring unit is used for when the stripe angle of calculated crosstalk striped meets predetermined angle range, then obtain the correction parameter of the stereoscopic display device, the application correction is high-efficient, accuracy is high.

Description

The bearing calibration and system of stereoscopic display device
Technical field
The present invention relates to stereo display technique field, in particular to the bearing calibration and system of a kind of stereoscopic display device.
Background technique
The image-forming principle of stereo-picture display technology is: the binocular parallax based on viewer, allow viewer left eye and the right side Disparity map of the perception with image difference, the brain of viewer form stereo-picture based on the image difference perceived to eye respectively.
As shown in Figure 1, existing 3 d display device 1 includes light-splitting device 2 and display panel 3, light-splitting device 2 is set to aobvious Show the light emission side of panel 3.Display panel 2 provides the left view and right view with image difference, passes through the light splitting of light-splitting device 3 Effect, so that left view enters the left eye of viewer, right view enters the right eye of viewer, and the brain of viewer is based on being perceived Image difference formed stereo-picture vision.
When display, it is desirable that precise match between light-splitting device 2 and display panel 3 avoids the occurrence of left view and enters viewer Right eye, right view enters the cross-interference issue of the left eye of viewer.However, in assembling process, not can avoid light-splitting device 2 with Rigging error between display panel 3 causes light-splitting device 2 that can not be conformed accurately on display panel 3 according to design requirement, It is bad or even the problems such as be unable to satisfy three-dimensional imaging requirement to crosstalk, stereo display effect occur.If 3 d display device exists It is not pocessed before factory, will have a direct impact on user's experience, and then limit the development of stereo display technique.
Summary of the invention
The purpose of the embodiment of the present invention is that the bearing calibration and system of a kind of stereoscopic display device are provided, to solve perspective view The display problems such as the crosstalk occurred as display equipment by rigging error.
In one aspect, the present invention proposes a kind of bearing calibration of stereoscopic display device, comprising:
It obtains the stereoscopic display device and is located at the stereo-picture shown when at least two fixed positions；
Detect the crosstalk that the stereoscopic display device is located in the stereo-picture obtained when at least two fixed positions Striped includes at least one crosstalk striped in the stereo-picture；
Calculate the stripe angle and width of fringe of the crosstalk striped detected；
When the stripe angle of the calculated crosstalk striped meets predetermined angle range, then the stereo-picture is obtained Correction parameter, with for correcting the stereoscopic display device；
The stereoscopic display device is corrected according to the correction parameter of the stereo-picture of acquisition.
On the other hand, the present invention proposes a kind of correction system of stereoscopic display device, including stereoscopic display device, shooting The correction parameter acquisition device of device and stereoscopic display device, the correction parameter acquisition device of the stereoscopic display device is again into one Step includes:
Image acquisition unit shows that equipment is aobvious for receiving when the solid taken is located at least two fixed positions The stereo-picture shown；
Crosstalk fringe detection unit, for detecting when the stereoscopic display device is located at least two fixed positions each Crosstalk striped in stereo-picture described in fixed position；
Dip countion unit, for calculating the stripe angle and width of fringe of the crosstalk striped detected；
Parameter acquiring unit, for when the stripe angle of the calculated crosstalk striped meets predetermined angle range, The correction parameter of the stereo-picture is then obtained, for correcting the stereoscopic display device.
Compared with the existing technology, the beneficial effects of the present invention are: the application more fixed positions to stereoscopic display device into Row correction, and obtains correction parameter using the inclination angle of crosstalk striped, and the accuracy for the correction parameter being calculated is high, and can be with Greatly improve correction efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the 3 d display device that the prior art provides；
Fig. 2 is a kind of architecture diagram of the correction system of stereoscopic display device of the embodiment of the present invention；
Fig. 3 is a kind of structure chart of the correction parameter acquisition device of stereoscopic display device of the embodiment of the present invention；
Fig. 4 is one kind of embodiment of the present invention stereo-picture schematic diagram to be corrected；
Fig. 5 is a kind of structure chart of Dip countion unit of the embodiment of the present invention；
Fig. 6 is the structure chart of another Dip countion unit of the embodiment of the present invention；
Fig. 7 is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention；
Fig. 8 is a kind of schematic diagram using dichotomizing search pixel-parameters of the embodiment of the present invention；
Fig. 9 is that a kind of pixel-parameters reference value of the embodiment of the present invention and the linear relationship of angle correct parameter reference values are shown It is intended to；
Figure 10 is the structure chart of another parameter acquiring unit of the embodiment of the present invention；
Figure 11 is the structure chart of another parameter acquiring unit of the embodiment of the present invention；
Figure 12 is a kind of schematic diagram of the best viewing location of stereo-picture of the embodiment of the present invention；
Figure 13 is that a kind of camera of the embodiment of the present invention is placed on the subsequent schematic diagram of best viewing location
Figure 14 is that a kind of camera of the embodiment of the present invention is placed on the schematic diagram before best viewing location.
Figure 15 is that a kind of translational movement of selection of the embodiment of the present invention finely tunes the curve synoptic diagram of parameter array；
Figure 16 is that another translational movement chosen of the embodiment of the present invention finely tunes the curve synoptic diagram of parameter array；
Figure 17 is that another translational movement chosen of the embodiment of the present invention finely tunes the curve synoptic diagram of parameter array；
Figure 18 is the structure chart of the correction parameter acquisition device of another stereoscopic display device of the embodiment of the present invention；
Figure 19 is a kind of structure chart of image analyzing unit of the embodiment of the present invention；
Figure 20 is a kind of structure chart of determining subelement of the embodiment of the present invention；
Figure 21 is the structure chart of the correction parameter acquisition device of another stereoscopic display device of the embodiment of the present invention；
Figure 22 is a kind of flow chart of the bearing calibration of stereoscopic display device of the embodiment of the present invention；
Flow chart when Figure 23 is the crosstalk striped in a kind of detection stereo-picture of the embodiment of the present invention；
Flow chart when Figure 24 is the inclination angle for the crosstalk striped that a kind of calculating of the embodiment of the present invention detects；
Flow chart when Figure 25 is a kind of acquisition angle correct parameter of the embodiment of the present invention；
Flow chart when Figure 26 is another acquisition angle correct parameter of the embodiment of the present invention；
Figure 27 is that a kind of acquisition translational movement of the embodiment of the present invention finely tunes the flow chart of parameter；
Flow chart when Figure 28 is a kind of stereo-picture that acquisition stereoscopic display device is shown of the embodiment of the present invention；
Figure 29 is stream when a kind of screen area in the stereo-picture received of the embodiment of the present invention detects Cheng Tu；
Figure 30 is that a kind of fixed position of the embodiment of the present invention uses the schematic diagram of linear；
Figure 31 is that a kind of fixed position of the embodiment of the present invention uses criss-cross schematic diagram；
Figure 32 is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention；
Figure 33 is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention；
Figure 34 is a kind of grating pixel correction parameter of the light-splitting device of calculating stereoscopic display device of the embodiment of the present invention With flow chart when grating focus correction parameter.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect refer to the preferable reality of schema in following cooperation Applying can clearly be presented in example detailed description.By the explanation of specific embodiment, when predetermined mesh can be reached to the present invention The technical means and efficacy taken be able to more deeply and it is specific understand, however institute's accompanying drawings are only to provide with reference to and say It is bright to be used, it is not intended to limit the present invention.
Fig. 2 is referred to, is a kind of architecture diagram of the correction system of stereoscopic display device of the embodiment of the present invention comprising The correction parameter acquisition device 21 of stereoscopic display device 22, filming apparatus 23 and stereoscopic display device.Stereoscopic display device 22 is used In display stereo-picture, filming apparatus 23 is used to shoot the image frame that screen is shown including stereoscopic display device 22, and will clap The image frame taken the photograph is transmitted to the correction parameter acquisition device 21 of stereoscopic display device, the correction parameter of stereoscopic display device Acquisition device 21 handles the image frame received, determines the screen area of image frame Stereo display equipment 21, And the inclination angle of the crosstalk striped of screen area neutral body image is calculated, and when inclination angle falls into predetermined angle range, it obtains three-dimensional Show equipment 22, which is used to correct the rigging error of stereoscopic display device 22.It is set when user opens stereoscopic display Standby 22, stereoscopic display device 22 corrects rigging error according to correction parameter, eliminates rigging error and shows to stereoscopic display device 22 The adverse effect of effect, to promote the display effect of stereoscopic display device.
In the present embodiment, stereoscopic display device 22 can be mobile terminal, be also possible to computer etc. with display function Electronic device, the correction parameter acquisition device 21 of stereoscopic display device can be computer or mobile terminal etc. with processing and logical The equipment of telecommunication function.In the present embodiment, preferably the correction parameter acquisition device 21 of stereoscopic display device is computer, stereoscopic display Equipment 22 is connected by the correction parameter acquisition device 21 of data line and stereoscopic display device, filming apparatus 3 by data line with The correction parameter acquisition device 21 of stereoscopic display device connects.
Filming apparatus 23 may include at least one camera, and camera shoots the perspective view that stereoscopic display device 22 is shown Picture.In the present embodiment, filming apparatus 23 includes spaced left camera 24 and right camera 25, left camera 24 and the right side Structure, the physical property of camera 25 are all identical.Spacing between left camera 24 and right camera 25 is preferably human eye interpupillary distance, Meet three-dimensional imaging requirement.
It can be installed on stereoscopic display device 22 tracking equipment (not being painted in figure), tracking equipment is used to measure filming apparatus 23 arrive the distance of stereoscopic display device 22, and tracking equipment for example can be tracking camera.For the ease of stereoscopic display device 22 It is identified, filming apparatus 23 can be faceform, and above-mentioned two camera is separately mounted to the left and right of faceform Eye position.
Specifically, stereoscopic display device 22 is successively set on multiple fixed positions by the system of the present embodiment, these are fixed The distance of point position to filming apparatus 23 is different, the perspective view that filming apparatus 23 successively takes each fixed position As being respectively transmitted to the correction parameter acquisition device 21 of stereoscopic display device, and is obtained and filled by the correction parameter of stereoscopic display device The correction parameter of 21 acquisition stereoscopic display devices 22 is set, so that stereoscopic display device 22 can join using the correction of the acquisition Number improves stereo display effect to be corrected.
Wherein, fixed position locating for stereoscopic display device 22, which can according to need, is configured, in the present embodiment, fixed point Position preferably uses linear or cross-shaped arrangement, as shown in figs. 30 and 31.In Figure 30, fixed position 301 uses linear Arrangement.In Figure 31, fixed position 401 uses cross-shaped arrangement, unlike linear, the criss-cross arrangement side of fixed position Formula also brings wide viewing angle within the scope of the considerations of correction into, and the reliability of correction is higher.Certainly, the set-up mode of fixed position It can be not limited thereto here using other arrangement modes, such as circle, rectangle.
In correction course, fixed position locating for stereoscopic display device can be replaced in the form of sliding rail, i.e., in advance It is laid with the sliding rail (such as linear or cross) of setting shape, then places stereoscopic display device 22 on the slide rail along cunning Rail is moved, and is successively fixed in the fixed position of setting.It is of course also possible to use filming apparatus 23 is installed on sliding rail It is moved, the purpose of fixed position change equally may be implemented.
In the present embodiment, the stereo-picture that stereoscopic display device 22 provides includes the stereo-picture with image difference, example Such as with the left view and right view of image difference.For convenient for identifying and detecting, left view and right view all can be pure color figures Picture, but left view is different with right view color.For example, left view is the first color image, right view is the second color image.The The color of one color image and the second color image is different.Therefore, the perspective view with image difference can be red green solid Figure, black/white perspective view, or there are other two different colors of solid-color images.Certainly, the left and right that embodiment of the present invention provides The stereo-picture of view is determined by stereoscopic display device 22, is not limited with solid-color image.
Before correction, phenomena such as leading to picture crosstalk due to rigging error, causes in left view and right view often It all include crosstalk striped, the crosstalk striped, which refers to, should be left view originally and right view two is opened in pattern set on image Be shown on an image and caused by striped, such as image is made of a plurality of red streak and green color stripe interval.And this One of the main purpose for inventing correction is exactly to eliminate these crosstalk stripeds, makes left view and right view that the figure of its script be presented Picture, for example, it is above-mentioned image is constituted by a plurality of red streak and green color stripe interval, after corrected, left view be in pure red image, Right view is in pure green image.For ease of description, the crosstalk striped in present embodiment illustrates by taking red an IOU issued by a post office line as an example.
When stereoscopic display device 22 is located at least two different fixed position information, filming apparatus 23 shoots solid respectively Display equipment 22 is located at image frame when two fixed positions, and sends the image frame to correction parameter acquisition device 21.Correction parameter acquisition device 21 detects crosstalk striped and simultaneously calculates stripe angle according to the image frame received, when calculating When the stripe angle that at least two fixed position information correspond to stereo-picture meets predetermined angle range, then obtains stereoscopic display and set Standby 22 correction parameter, for correcting the stereoscopic display device 22.
For example, if stereoscopic display device 22 is located at the first fixed position information, filming apparatus 23 shoots three-dimensional aobvious Show image frame when equipment is located at the first fixed position, and sends correction parameter acquisition device 21 to.If stereoscopic display device Correction parameter acquisition device 21 receive filming apparatus 23 transmission come image frame after, can determine whether the image frame neutral body It shows the screen area of equipment, and obtains the stereo-picture that screen area is shown, while detecting solid using image analysis technology Crosstalk striped on image.If crosstalk striped is not present on stereo-picture, illustrates that the stereo-picture is normally shown, be not required to It corrects.And if there are crosstalk striped on stereo-picture, the correction parameter acquisition device 21 of stereoscopic display device can be calculated The inclination angle of crosstalk striped, and the corresponding perspective view in the inclination angle is obtained when meeting predetermined angle range according to the inclination angle of crosstalk striped Then the correction parameter of picture changes the fixed position information of stereoscopic display device 22, such as mobile by the first fixed position information To the second fixed position information, it is corresponding to be then located at the first fixed position information inclination angle according still further to acquisition stereoscopic display device 22 The method of the correction parameter of stereo-picture obtains the corresponding solid in inclination angle when stereoscopic display device is located at the second fixed position information The correction parameter of image.And so on, it can obtain when stereoscopic display device 22 is located at multiple fixed positions and correspond to stereo-picture Correction parameter, and multiple correction parameter is selected and is calculated, to obtain the correction parameter of stereoscopic display device, with Correct stereoscopic display device 22.For the correction parameter of the application stereoscopic display device to be obtained, some correction parameters exist It can be obtained when any one fixed position that single fixed position, i.e. stereoscopic display device 22 are located therein, such as angle school Positive parameter and some correction parameters are to need to obtain using more fixed positions, such as grating pixel correction parameter, grating are burnt Away from correction parameter etc..Below, it will the acquisition process of each correction parameter of stereoscopic display device is described in detail.
In the embodiment of the present invention, the stripe angle of crosstalk striped refers to: the angle of crosstalk striped and horizontal direction, or string Disturb the angle of striped and vertical direction.When the inclination angle of crosstalk striped is the angle of crosstalk striped and horizontal direction, crosstalk striped Predetermined angle may range from [- 90 °, -70 °] or [70 °, 90 °], if the inclination angle of crosstalk striped falls into above-mentioned area at this time Between, then it is assumed that the stereo-picture crosstalk striped that stereoscopic display device is shown at this time is in vertical, while obtaining inclining for the crosstalk striped The correction parameter of the corresponding stereo-picture in angle.When the inclination angle of crosstalk striped is the angle of crosstalk striped and vertical direction, crosstalk The predetermined angle of striped may range from [- 20 °, 0 °] or [0 °, 20 °], if the inclination angle of crosstalk striped falls into above-mentioned area at this time Between, then it is assumed that crosstalk striped is in vertical on the stereo-picture that stereoscopic display device is shown at this time, while obtaining the crosstalk striped The correction parameter of the corresponding stereo-picture in inclination angle.
Fig. 3 is referred to, is the structure chart of the correction parameter acquisition device of Fig. 2 Stereo display equipment.This device includes Image acquisition unit 31, crosstalk fringe detection unit 32, computing unit 33 and parameter acquiring unit 34.
Image acquisition unit 31 is used to obtain the stereo-picture that the stereoscopic display device 22 is shown.In correction course, It generally requires repeatedly to adjust the display parameters of stereoscopic display device 22, to find out optimal parameter.And filming apparatus 23 Track up, and the image frame that will be taken can be carried out to the image frame for including the display screen of stereoscopic display device 22 in real time Send image acquisition unit 31 to.
Image acquisition unit 31 obtains the stereo-picture of the display of stereoscopic display device 22 from the image frame received, with The variation of image when obtaining the adjustment of each subparameter, and the stereo-picture that will acquire sends crosstalk fringe detection unit 32 to.
Since the image frame that filming apparatus 23 obtains not only includes the stereo-picture that stereoscopic display device is shown, there are also wrap The external environment other than display area is included, for the accuracy for avoiding external environment influence correction parameter, needs image acquisition unit 31 before obtaining stereo-picture, need to determine the display area of image frame Stereo display equipment 22, first to determine viewing area The stereo-picture of display in domain.
Specifically, image acquisition unit 31 includes receiving subelement and determining subelement.Wherein, receiving subelement is for connecing Receive the image frame that screen is shown including the stereoscopic display device 22 that filming apparatus 23 takes；Determine that subelement is used for really Determine the screen area of the received image frame Stereo display equipment 22 of receiving subelement, and obtains what the screen area was shown Stereo-picture.It determines that subelement can use the image channel value in image analysis technology extraction display area, then uses side Edge detection, detects that the boundary point and boundary curve of display area detect display area in conjunction with image area.
Further, Figure 20 is referred to, determines that subelement includes: brightness of image analysis subelement 204, binary conversion treatment Unit 201, range searching subelement 202 and merger divide subelement 203.
Brightness of image analysis subelement 204 is used to obtain the brightness value of pixel in image frame.
Binary conversion treatment subelement 201 is used to carry out binary conversion treatment to stereo-picture according to preset luminance threshold, with Corresponding quasi- screen area is obtained, the predetermined luminance threshold value has at least two.The binaryzation of so-called image, being exactly will be on image The gray value of pixel be set as 0 or 255, that is, whole image is showed and significantly there was only black and white vision effect Fruit.So as to generally tell screen area.
Area of the range searching subelement 202 for the search setting shape on the quasi- screen area after binary conversion treatment Domain.The region of the setting shape can be rectangular area, border circular areas.Delta-shaped region etc., according in stereoscopic display device Source stereotome subject to.
The region that merger divides the setting shape that subelement 203 is used to search carries out merger division, described in determination The screen area of stereoscopic display device described in image frame.The quantity for the setting regions that range searching subelement 202 searches out It might have very much, these setting regions may vary, and mutual position may be coincidence, staggered, separated. The process of merger, which can be, assigns weighted value, the i.e. number of some area coincidence according to the coincidence number in these regions searched out It is more more then to assign a higher weight.The process of division refers to that the weight distribution according to the region after merger, removal weight are small In the region of certain value, and the region of setting shape is marked off again, as screen area.
Crosstalk fringe detection unit 32 is used to detect the crosstalk striped in the stereo-picture.Crosstalk fringe detection unit 32 It can be by the color value of pixel in calculating stereo-picture, to obtain the crosstalk striped in stereo-picture.For example, can pass through By stereoscopic image conversion to HSV space, the value on color component is obtained, HSV space is to embody a kind of face of color intuitive nature The colour space, also referred to as hexagonal pyramid model (Hexcone Model), there are three color parameters respectively in this color space: tone (Hue), saturation degree (Saturation) and brightness (Value).For red green crosstalk striped, color value 0 to 20 it Between region be it is red, region of the color value between 40 to 60 is green, in this way it is known that color on stereo-picture Distribution, to detect on stereo-picture with the presence or absence of crosstalk striped.It is a perspective view to be corrected in conjunction with referring to fig. 4 Picture, wherein black region indicates red, and white space indicates green, and as can be seen from Figure 4 the stereo-picture has three red Three Greens Six crosstalk stripeds.
Dip countion unit 33 is used to calculate the stripe angle of the crosstalk striped detected.It can be seen from figure 4 that Crosstalk striped is often inclined, and entire correction course, if embodying, exactly makes to go here and there in image if with continuous image The width for disturbing striped becomes larger to reduce the quantity of crosstalk striped, then translates, until single tone occupies display area. And the spectrophotometric result in order to reach, and prevent appearance extension angle on stereo-picture from (hanging angle and referring to some region on stereo-picture There is no display pattern, such as a pure red rectangle stereo-picture, one angle is not displayed in red pattern), the present embodiment is adopted Used in crosstalk striped it is vertical in the case where correction parameter obtained by parameter acquiring unit 34, to reach preferable display effect And correction efficiency.It is of course also possible to use obtain correction parameter in the case where crosstalk jail-bar level, the application not as Limit.
Further, Dip countion unit 33 can be by obtaining the line of demarcation between crosstalk striped, and calculates described point The inclination angle in boundary line, using the inclination angle as the crosstalk striped.Fig. 5 is referred to, is a kind of Dip countion of the embodiment of the present invention The structure chart of unit.This Dip countion unit 33 further comprises that line of demarcation obtains subelement 51 and computation subunit 52.Boundary Line obtains subelement 51 and is used to determine the line of demarcation between crosstalk striped according to the color value of pixel in stereo-picture.Calculate son Unit 52 is used for according to the inclination angle for calculating the line of demarcation and obtaining the line of demarcation that subelement 51 determines, using as the crosstalk The inclination angle of striped.Such as the stereo-picture of red green crosstalk striped shown in Fig. 4, region of the color value between 0 to 20 are red, Region of the color value between 40 to 60 is green, then the pixel that color value is not belonging to the two sections in image can It is considered the pixel between crosstalk striped on line of demarcation.After obtaining the pixel on line of demarcation, Dip countion unit 33 can To fit the line of demarcation by the methods of least square method or M algorithm for estimating, and calculate the boundary between the crosstalk striped The inclination angle of line.
Further, in order to improve the computational accuracy at inclination angle, Dip countion unit 33 can calculate a plurality of in stereo-picture The inclination angle in line of demarcation, and average value is calculated, using the inclination angle as crosstalk striped.Such as the stereo-picture of Fig. 4, including five Line of demarcation, Dip countion unit 33 can find out the inclination angle in this five lines of demarcation respectively, then calculate inclining for this five lines of demarcation The average value at angle, so that but also calculated result is more acurrate.
It further, is lines to be fitted to using pixel, thus calculate when Dip countion unit 33 calculates line of demarcation As soon as crosstalk striped line of demarcation it could also be possible that curved lines, at this moment have no idea to calculate inclining for this line of demarcation Angle, if a wrong numerical value will be obtained by being fitted lines using the methods of least square method and then being calculated inclination angle again.Cause This can detect the threadiness in the line of demarcation between the crosstalk striped before the inclination angle for calculating line of demarcation first with statistic algorithm Distribution.Fig. 6 is referred to, is the structure chart of another Dip countion unit of the embodiment of the present invention.Compared with Fig. 5, institute in Fig. 6 The Dip countion unit 33 shown further includes that linear detection is single in addition to including that line of demarcation obtains subelement 51 and computation subunit 52 Member 61.Linear detection sub-unit 61 is used for after line of demarcation acquisition subelement 51 obtains the line of demarcation, utilizes statistics Whether the linear distribution for the lines that algorithm detection fitting obtains meets preset linear distribution condition.If linear detection sub-unit 61 detect to meet preset linear distribution condition, such as line of demarcation is straight line, then are calculated and demarcated by Dip countion unit 33 again The inclination angle of line.If detecting that line of demarcation is not straight line, directly give up the calculating to the line of demarcation inclination angle.
Specifically, it is assumed that the pixel coordinate sequence on stereo-picture crosstalk striped line of demarcation are as follows:
{ (x0, y0), (x1, y1), (x2, y2), (x3, y3) ... .. (xn, yn) },
Linear detection sub-unit 61 can judge its linear distribution by calculating the covariance matrix of this coordinate sequence. And calculating covariance matrix first will carry out decentralization to data, so the mean value (vector) of point sequence are as follows:
So covariance matrix are as follows:
Then linear detection sub-unit 61 can calculate the characteristic value E0 and E1 of covariance matrix, feature Distribution value generation at this time Table these pixels in a certain direction on the minimum and maximum variance of distribution that can reach, it is possible to by comparing maximum The ratio E0/E1 of characteristic value and minimal eigenvalue, carrys out the linear degree of judgment curves.A threshold value can be set, and (this threshold value is excellent Select numerical value 7), when the ratio E0/E1 of maximum eigenvalue and minimal eigenvalue is greater than the threshold value, so that it may think that the line of demarcation is Otherwise straight line is then determined as calculating of the curved lines without being included in crosstalk stripe angle.
If the calculated result of Dip countion unit 33 meets the vertical condition of crosstalk striped, parameter acquiring unit 34 The corresponding parameter value in current stereo-picture inclination angle is recorded, for calculating optimal correction parameter.Crosstalk striped described here Vertical condition is the most accurate situation of calculating correction parameter, and in practical applications, it can according to need and incline to crosstalk striped The set angle met needed for angle makees specific range setting, such as the level inclination of crosstalk striped meets at 80 degree~100 degree Between, it is also assumed that the inclination angle of crosstalk striped meets preset angular range, it is not limited herein with it.Stereoscopic display device 22 Correction parameter include angle correct parameter, grating pixel correction parameter, grating focus correction parameter, translational movement correction parameter Deng.The thick correction parameter of translational movement is the intermediate parameters corrected during stereoscopic display device, and the purpose for obtaining the parameter is In order to obtain grating pixel correction parameter, the grating focus correction parameter of stereoscopic display device.
Since the light-splitting device of stereoscopic display device is slant setting in the light splitting list on display panel, on light-splitting device Member is arranged along a direction, and the display unit on display panel is arranged along another direction, the angle on the two directions An error being easy to produce when being assembly, if not being subject to correction angle degree error, can generate image inclination, hang angle, crosstalk, Granular sensation etc. influences the case where display effect, even and if angle correct parameter is used to correct this error.
The calculation of correction parameter can determine according to actual needs.It should be noted that by acquisition stereoscopic display When the angle parameter of equipment, it is only necessary to which stereoscopic display device 22 can obtain when being located at a fixed position.Therefore, it is specifically obtaining When taking, the angle correct parameter of stereoscopic display device is obtained when stereoscopic display device 22 is located at any fixed position.For vertical Body shows that the angle correct parameter of equipment, the application provide two kinds of calculations, be described more fully below.
Fig. 7 is referred to, is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention.This parameter acquiring unit 34 It include: that reference value obtains subelement 71, linear relationship computation subunit 72 and angle pixel computation subunit 73.
Reference value obtains subelement 71 and is used to meet according to the inclination angle the multiple stereo-picture when predetermined angle range Corresponding multiple pixel-parameters obtain angle correct parameter reference values corresponding with the multiple pixel-parameters.Stereoscopic display is set It is standby to show stereo-picture according to different pixel-parameters.And perspective view is shown according to each pixel-parameters in stereoscopic display device When picture, angle parameter can be all finely adjusted, in this way according to the analysis to the stereo-picture of display, so that it may find out and each Pixel-parameters are corresponding, and crosstalk stripe angle meets the angle correct parameter reference values of predetermined angle range, thus Constitute an array of pixel-parameters and angle correct parameter reference values.
Linear relationship computation subunit 72 is used for the array according to the pixel-parameters and angle correct parameter reference values, meter Calculate the linear relationship of the pixel-parameters Yu angle correct parameter reference values.
Angle pixel computation subunit 73 is used for the linear pass according to the pixel-parameters and angle correct parameter reference values It is, the grating physical parameter t and preset grating focal length parameter f1 of the light-splitting device of stereoscopic display device and the solid are shown Show the fixed position information (fixed position information refers to filming apparatus to the distance of stereoscopic display device) of equipment, and it is three-dimensional at The optical principle of picture selects optimal angle correct parameter reference values from array (pitch, cot), to show as the solid Show the angle correct parameter of equipment.
As an example it is assumed that pitch parameter is pixel-parameters, cot parameter is angle correct parameter reference values, is set first One pitch parameter reference values makes stereoscopic display device show stereo-picture according to this pitch parameter reference values of setting, Then the value for adjusting cot parameter, is changed the crosstalk stripe angle on stereo-picture, and calculates inclining for crosstalk striped in real time Angle.When calculating crosstalk striped is vertical state (or inclination angle meets preset angular range), then pitch at this time is recorded Parameter reference values and cot parameter reference values.Then another pitch parameter reference values is reset according to preset detection interval, And it is vertical by adjusting the crosstalk striped of the value of cot parameter to stereo-picture, and pitch parameter reference values and cot are recorded again Parameter reference values.And so on can be obtained by (pitch1, cot1), (pitch2, cot2), (pitch3, cot3), The array of (... ...).
And when searching for the cot parameter of above-mentioned (pitch, cot) array, search speed can also be accelerated using dichotomy. Fig. 8 is referred to, for using the schematic diagram of dichotomizing search pixel-parameters.Wherein solid black lines are to take the retrieval area of cot parameter Between both ends when the inclination angle of crosstalk striped that shows of stereo-picture, i.e., in the case where pitch parameter reference values are selected, according to vertical Body shows the display panel of equipment and the physical characteristic of light-splitting device, adjusts cot parameter and crosstalk item on the stereo-picture that shows The gradient variation of line is only possible between two black are realized.Three dotted lines are chosen in the retrieval section of cot parameter in Fig. 8 Between value when the crosstalk fringe inclination direction that shows, crosstalk striped when wherein the dotted line of label 3 is target cot parameter reference values inclines Tilted direction.
When being started using dichotomizing search, the range of search is very wide, and retrieval section is the corresponding cot parameter of two black solid lines Between value, is attempted at the median first between the corresponding cot parameter value of two black solid lines, that is, select the void of label 1 The corresponding cot parameter value of line, then calculates the inclination angle of the dotted line of label 1 according to stereo-picture, and the dotted line of discovery label 1 compares right side Black solid line is closer vertical, therefore the region of search of cot parameter is updated to the corresponding cot parameter value of the black solid line in left side to label The corresponding cot parameter value of 1 dotted line.Then the centre of the corresponding cot parameter value of dotted line of left side black solid line to label 1 is chosen Then value, the i.e. corresponding cot parameter value of the dotted line of label 2 calculate the inclination angle of the dotted line of label 2, discovery mark according to stereo-picture Numbers 2 dotted line solid line more black than left side is closer to vertical, therefore the dotted line that the region of search of cot parameter is updated to label 2 is corresponding Cot parameter value to label 1 the corresponding cot parameter value of dotted line.Then the corresponding cot parameter value of dotted line for choosing label 2 arrives The median of the corresponding cot parameter value of the dotted line of label 1, the i.e. corresponding cot parameter value of the dotted line of label 3, by stereo-picture Crosstalk stripe angle calculate, discovery label 3 dotted line be it is vertical, then using the corresponding cot parameter value of the dotted line of label 3 as cot Parameter reference values record the array into (pitch, cot).It can be seen that can be greatly reduced using dichotomy in region of search choosing value Quantity improves search efficiency.
After obtaining (pitch, cot) array, the linear relationship of pitch and cot in array is calculated, Fig. 9 is referred to, is picture The linear relationship schematic diagram of plain parameter reference values and angle correct parameter reference values, wherein each dot is a logarithm, horizontal Coordinate is pitch, and ordinate is cot, and Cong Tuzhong is it can also be seen that the array (pitch, cot) substantially meets the linear of straight line Relationship.Therefore, there are a following relationships between pitch and cot, it may be assumed that
Pitch=k*cot+b
Then the value of k and b are calculated.Finally according to the value of k, b, the grating physical gate of light-splitting device away from parameter t, preset (fixed position information refers to that filming apparatus is set to stereoscopic display to the grating focal length parameter f1 and fixed position information of light-splitting device Standby distance), and the optical principle of three-dimensional imaging is combined to select optimal angle correct parameter ginseng from array (pitch, cot) Value is examined, and as the angle correct parameter of stereoscopic display device.
Referring to Figure 10, it is the structure chart of another parameter acquiring unit of the embodiment of the present invention.This parameter obtains single Member 34 includes: that screening acquisition subelement 101 and analysis obtain subelement 102.
Screening obtains the stereo-picture and correspondence that subelement 101 meets set angle for obtaining the inclination angle of crosstalk striped Angle correct parameter.
Analysis obtains the stereo-picture that subelement 102 is used to meet set angle range to the inclination angle of crosstalk striped and carries out figure As analysis, the stereo-picture comprising maximum width crosstalk striped is obtained, and obtains corresponding pixel correction parameter.It is noticeable It is, during the adjustment of the pixel-parameters at 22 end of stereoscopic display device, the width of crosstalk striped on the stereo-picture of display It can gradually change, since the width of display area limits, if the crosstalk striped on stereo-picture has three or more, lean on During the width of crosstalk striped among nearly display area becomes larger, close to display area edge crosstalk striped can gradually by Display area is ejected, in other words, it may appear that the width of some crosstalk stripeds becomes larger, the feelings that the width of some crosstalk stripeds becomes smaller Condition, until being only left two crosstalk stripeds in display area.The case where for only including two crosstalk stripeds in display area, only The line of demarcation of this two crosstalk stripeds is wanted to be not at the midline position of display area, then this remaining two crosstalk striped occupies The area of display area still can change with the variation of pixel-parameters, i.e., the width of one crosstalk striped can become larger, accordingly The width of an other crosstalk striped can become smaller.And when the width of a crosstalk striped reaches maximum, indicate pixel at this time Parameter is optimal parameter, then analyzing acquisition subelement 102 will record the stereo-picture, and obtain corresponding pixel-parameters.It calculates On stereo-picture when the width of crosstalk striped, it can be determined according to the analysis to color value on stereo-picture according to distribution of color The width of crosstalk striped, or line of demarcation can also be calculated to line of demarcation or line of demarcation to the distance of display area boundary line, and Width as crosstalk striped.Specifically, it is assumed that pitch parameter is pixel-parameters, and cot parameter is angle correct parameter reference Value parameter, in contrast to the embodiment of FIG. 7, cot parameter is adjusted first, it can be using dichotomy come to cot parameter Value is carried out, the inclination angle of crosstalk striped in the stereo-picture that stereoscopic display device is shown is calculated, when crosstalk striped is vertical, is chosen Cot parameter at this time is as best cot parameter.Then cot parameter constant is selected, then pitch parameter is adjusted, and opposes Body shows that the stereo-picture that equipment is shown carries out image analysis, when a crosstalk striped in stereo-picture is maximum width, Corresponding pitch parameter is obtained as best pitch parameter.At this moment there are two types of situations for the display effect of stereo-picture, it is assumed that string Disturbing striped is red an IOU issued by a post office line, then when the width maximum of crosstalk striped, a kind of situation is that the red or green of pure color takes entire solid Image, this expression have reached the target of correction.And another situation is that there was only point of a crosstalk striped in stereo-picture Boundary line, and red green pure color occupies the both sides in line of demarcation respectively, this just need it is subsequent again to translational movement correction parameter (including coarse adjustment and Fine tuning) it is adjusted, to achieve the purpose that the color of pure color occupies entire stereo-picture.
The light-splitting device slant setting of stereoscopic display device is on display panel, due to the spectrophotometric unit of light-splitting device and aobvious Show that the display unit arrangement period of panel mismatches the translational movement error that can generate, the translational movement correction parameter be exactly in order to This translational movement error is corrected, if be not corrected, stereo-picture can be made to lead to the problem of picture crosstalk.
Furthermore, it is understood that if the feelings that stereoscopic display device is located at a certain fixed position and has obtained in angle correct parameter Under condition, stereoscopic display device shows stereo-picture according to the angle correct parameter of acquisition, at this time may be still on stereo-picture There are a plurality of crosstalk stripeds, the reason is that the width due to crosstalk striped is less than display area, although so that crosstalk striped is in Vertical state, but three or more crosstalk stripeds are still had in display area.
In response to this, the scheme that the application uses is: progress translational movement coarse adjustment first, by the central point of crosstalk striped It is adjusted to the center of display area, then increases width of the width of crosstalk striped until being greater than or equal to display area again Degree, is finally finely adjusted, and the pure color of setting is made to occupy entire display area.Therefore, it is necessary to obtain the stereoscopic display respectively to set The standby thick correction parameter of translational movement for being located at the corresponding stereo-picture in inclination angle when each fixed position.
Figure 33 is referred to, is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention.This parameter acquiring unit 34 include that central point detection sub-unit 311 and thick translation parameters obtain subelement 312.Central point detection sub-unit 311 is for sentencing Whether the central point of crosstalk striped is in the central area of the screen area on disconnected stereo-picture.It is single that thick translation parameters obtains son Member 312 is for obtaining corresponding translational movement parameter when the center of crosstalk striped is when the central area of the screen area As the thick correction parameter of the translational movement.If the central point of crosstalk striped is not on the central area of the screen area, The translational movement parameter of the stereo-picture is adjusted, so that the stereoscopic display device shows institute according to translational movement parameter adjusted State stereo-picture；Then it repeats and judges whether the central point of the crosstalk striped is in the stereo-picture screen area.
Specifically, the central area refers to abscissa range certain in screen area, such as in screen area The abscissa of line is 5, then this region can be (4,6).Translational movement parameter is adjusted in preset section, and can use figure As analytical technology, the stereo-picture that stereoscopic display device is shown is analyzed.If there is at least three crosstalks on stereo-picture Whether striped, the then central point for detecting corresponding crosstalk striped are in the central area of on-screen display (osd) area, such as the perspective view Seem left view, pure green image should be shown under ideal display state, then finds out all green crosstalk stripeds on the stereo-picture Central point, and detect whether the center of some green crosstalk striped in the central area of screen area.If there is The center of one green crosstalk striped is in the central area of screen area, then using translational movement parameter at this time as translational movement Thick correction parameter.If obviously there are two crosstalk stripeds on stereo-picture, illustrate that the central point of crosstalk striped at this time is necessarily inclined Central area from screen area, by adjusting translational movement parameter, translate crosstalk striped gradually, until a crosstalk striped Center in the central area of screen area, and by record translational movement parameter be at this time the thick correction parameter of translational movement；Or Person is until the color of a crosstalk striped then illustrates to have reached correction purpose at this time full of entire screen area, and record is at this time Translational movement parameter be the thick correction parameter of translational movement.
The corresponding thick correction parameter of translational movement is obtained in multiple fixed positions, pixel ginseng can be adjusted on this basis Number makes crosstalk striped cover entire screen area, to calculate the grating pixel correction parameter for obtaining light-splitting device and grating coke Away from correction parameter.The purpose for obtaining the thick correction parameter of translational movement is to quickly make crosstalk striped cover entire screen area Domain, to calculate the grating pixel correction parameter and grating focus correction parameter of light-splitting device.
Calculate the grating pixel correction parameter and grating focus correction parameter of the light-splitting device of stereoscopic display device, purpose It is that grating pixel correction parameter and grating focus correction parameter are compared with preset value, prevents from leading because of assembly technology error The grating pitch and grating focal length of cause are misfitted with preset value, and the problem of influence display effect.Therefore, the embodiment of the present invention is also Available grating focus correction parameter f.The embodiment of the present invention can also obtain grating pixel correction parameter t0 simultaneously.It is specific real In existing, when the width of crosstalk striped covers the screen area, it is believed that corresponding grating focal length parameter and grating pixel at this time Parameter be it is optimal, can be used as the grating pixel correction parameter and grating focus correction parameter of stereoscopic display device.Work as solid The central point of crosstalk striped is located at the central area of screen area on image, can determine whether the width of the crosstalk striped covers institute Screen area is stated, if the width of crosstalk striped is not covered with the screen area, can be increased by adjusting pixel-parameters The width of big crosstalk striped, until the width cover screen region of crosstalk striped.
Figure 32 is referred to, is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention, this parameter acquiring unit 34 include that width of fringe detection sub-unit 321 and pixel focal length parameter obtain subelement 322.Width of fringe detection sub-unit 321 For judging whether the width of the crosstalk striped covers the screen area.Pixel focal length parameter obtains subelement 322 and is used for When the width of crosstalk striped covers the screen area, the corresponding grating pixel ginseng of the pixel-parameters for the stereo-picture that will acquire Number is used as the grating pixel correction parameter, using the corresponding grating focal length parameter of the pixel-parameters of stereo-picture as the grating Focus correction parameter.
Specifically, by adjusting pixel-parameters in preset section, the stereo-picture for showing stereoscopic display device The width of middle crosstalk striped constantly changes, and when the width of crosstalk striped is greater than or equal to the width of screen area, that is, goes here and there It disturbs striped and covers screen area, calculate the corresponding grating pixel-parameters of the pixel-parameters, grating focal length parameter, using as grating Pixel correction parameter, grating focus correction parameter.
It can be according to following formula when calculating grating pixel correction parameter and grating focus correction parameter:
Wherein, diIt is located at fixed position information when the i-th fixed position for the stereoscopic display device, i.e. stereoscopic display is set It is standby when being located at the i-th fixed position with the distance between filming apparatus information.pitchiIt is fixed to be located at i-th for the stereoscopic display device When point position and the crosstalk striped covers the pixel-parameters of the stereo-picture when screen area, and f sets for stereoscopic display The grating focus correction parameter of standby light-splitting device, t0 are the grating pixel correction parameter of the light-splitting device of stereoscopic display device.
Further, the pixel correction ginseng of stereo-picture is corresponded to when getting stereoscopic display device and being located at multiple fixed positions It, specifically can be by institute when the grating pixel correction parameter and grating focus correction parameter for calculating the light-splitting device when number State the pixel correction parameter that stereo-picture is corresponded to when the stereoscopic display device of acquisition is located at multiple fixed positions and described vertical Body shows that fixed position information locating for equipment all substitutes into formula:Matrix is formed, and described in calculating The minimal error of matrix will meet when minimal error corresponding grating pixel-parameters and grating focal length parameter as the optical splitter The grating pixel correction parameter and grating focus correction parameter of part.
Further, during adjusting pixel-parameters, the variation between pixel-parameters and crosstalk width of fringe is linearly closed System's parabolically shape, thus crosstalk width of fringe just cover screen region when, pixel focal length parameter obtains 322 meeting of subelement Obtain two pixel-parameters values, i.e. the first pixel-parameters and the second pixel-parameters.Theoretically when be adjusted to the first pixel-parameters and When the average value of the second pixel-parameters, the width of crosstalk striped reaches maximum, therefore pixel focal length parameter acquisition subelement 322 can To calculate the average value of first pixel-parameters and second pixel-parameters, using the calculated average value as described in The width of crosstalk striped covers the pixel-parameters of the stereo-picture when screen area.
The application is corrected stereoscopic display device in more fixed positions, and obtains school using the inclination angle of crosstalk striped The accuracy of positive parameter, the correction parameter being calculated is high, and can greatly improve correction efficiency.
After obtaining grating pixel correction parameter and grating focus correction parameter, in order to further eliminate calculate error and The accuracy of correction is further increased, translational movement can be carried out again in the case where the stereoscopic display device is opened and tracked micro- It adjusts.
Referring to Figure 11, it is a kind of structure chart of parameter acquiring unit of the embodiment of the present invention.This parameter acquiring unit 34 include: that micro- translation parameters obtains subelement 111.Micro- translation parameters obtains subelement 111 and calculates in the Dip countion unit The inclination angle of crosstalk striped out meets predetermined angle range and the stereoscopic display device is opened in the case where tracking, according to calculating The translational movement that picture crosstalk scoring out obtains corresponding stereo-picture finely tunes parameter.The value interval that translational movement finely tunes parameter can Using the thick correction parameter of the translational movement using acquisition as median, left and right one range of each setting is determined.The picture crosstalk is commented Divide the evaluation criteria referred to three-dimensional picture crosstalk situation.The acquisition methods of translational movement fine tuning parameter are described below.It needs Bright, the method for adjustment of the thick correction parameter of translational movement is similar with the translational movement fine tuning method of adjustment of parameter, herein no longer in detail Description.
Specifically, adjustment translational movement is usually in angle correct parameter, grating pixel correction parameter, grating focus correction What parameter carried out in the case where having corrected that completion, it is assumed that xoffadd parameter is translational movement fine tuning parameter, and crosstalk striped is red green Striped translates red an IOU issued by a post office line in the horizontal direction, moves to a suitable number by suitably adjusting xoffadd parameter When value, most bright-coloured red and green is presented in the image that left and right camera grabs respectively.This suitable parameter is exactly best Xoffadd parameter.
When stereoscopic display device shows stereo-picture using best xoffadd parameter, two cameras in left and right are taken Stereo-picture is the red and green image of pure color respectively, and red and green be respectively filled with whole image region, no extension angle, such viewer When observing stereo-picture, optimal 3D effect can be experienced.
The correction course of xoffadd parameter is directly to traverse maximum from the minimum value of the xoffadd parameter of detection interval Value, the xoffadd parameter for then therefrom selecting a spectrophotometric result best.It can be can be changed with one to accelerate the speed of search Step-length be adjusted.
For example, increasing a numerical value every time, then to stereoscopic display device since initial translational movement xoffadd=0 It is configured.After being configured every time to equipment, stereo-picture is grabbed by filming apparatus immediately, then utilizes image analysis Technology analyzes the color of stereo-picture, and is adjusted according to color change situation to step-length, here can be according to stereo-picture The color value of upper pixel sets a crosstalk scoring, is carried out according to change step of the crosstalk scoring situation to xoffadd parameter Adjustment.Such as stereo-picture crosstalk scoring it is very low, illustrate it is far apart from best xoffadd parameter value, so needing to increase by one A bigger numerical value, to accelerate search speed., whereas if the crosstalk scoring of stereo-picture is higher, illustrate close to best Xoffadd parameter value, so the xoffadd parameter value that one step-length of setting is smaller, with precise search.When the crosstalk of image is commented It assigns to up to after certain threshold value, xoffadd parameter at this time can be stored in an array, finally be found out from this array One optimal xoffadd parameter.
Because the stereo-picture that stereoscopic display device provides is there are two images of left view and right view, referring to Figure 12, Figure 12 is the schematic diagram of the best viewing location of stereo-picture, according to optical imaging concept, only when the left camera of filming apparatus It is individually positioned in optimal viewing point with right camera, i.e. circled positions in Figure 12 can just see most bright-coloured stereo-picture, institute With the difference according to filming apparatus apart from stereoscopic display device distance, optimum value is selected from multiple candidate's xoffadd parameter values It can be there are two types of scheme:
The first, when two cameras of filming apparatus are located at optimum position, translational movement computation subunit 111 obtains figure Translational movement parameter corresponding to highest stereo-picture, which is scored, as optimal translational movement as crosstalk finely tunes parameter.In this case, When the image that left side camera is captured is most bright-coloured, the image on the right should also be most bright-coloured, so left and right perspective view It seem to reach most bright-coloured degree simultaneously.Best xoffadd parameter at this time is to make the left side (or the right) image most Bright-coloured xoffadd parameter value.It at this time only need to be according to the image that a camera acquires it may determine that optimal xoffadd out Parameter.
Second, when two cameras of filming apparatus are not located at optimum position, specifically, when two cameras When not all being placed on optimal optics viewing location or two cameras are all before optimum position or two are taken the photograph As head is all placed on behind best viewing location, 3 and Figure 14, Figure 13 are that camera is placed on best viewing position referring to Figure 1 Subsequent schematic diagram is set, Figure 14 is that camera is placed on the schematic diagram before best viewing location.At this moment it is possible that: the left side Camera has grabbed most bright-coloured solid-color image, but the image that the right camera is captured but is not most bright-coloured pure color Image, or just on the contrary, right image has detected that most bright-coloured solid-color image, and the left side be also not detected it is most bright-coloured pure Chromatic graph picture.In this case, translational movement computation subunit 111 constitutes a choosing according to the xoffadd parameter being stored in array Region is selected, and obtains the median of this selection region as optimal xoffadd parameter.And it is chosen from selection region best Xoffadd parameter can use different schemes, the present embodiment provides three kinds of preferred embodiments:
(1) if the image that left and right camera grabs when reaching most bright-coloured corresponding xoffadd parameter differ very little, As shown in figure 15, Figure 15 is that a kind of translational movement of selection finely tunes the curve synoptic diagram of parameter array, and abscissa is in Figure 15 Xoffadd parameter value, ordinate are crosstalk score value, and two curves are left view and the corresponding xoffadd ginseng of right view respectively The curve of number array, when the right and left image at this moment can be taken to reach most bright-coloured degree (i.e. ordinate is maximum) respectively The average value of xoffadd parameter takes the xoffadd parameter conduct of dotted line position in Figure 15 as optimal xoffadd parameter Best xoffadd parameter.
(2) if the image that left and right camera grabs when reaching most bright-coloured corresponding xoffadd parameter difference it is larger, As shown in figure 16, abscissa is xoffadd parameter value in Figure 16, and ordinate is crosstalk score value, lesser two curves of peak value It is the curve of left view and the corresponding xoffadd parameter array of right view respectively, at this moment takes the xoffadd of left view and right view Xoffadd parameter corresponding to the maximum value of the sum of the ordinate value of parameter curve is optimal xoffadd parameter, i.e., by two Curve ordinate is added, and forms the higher curve of peak value in Figure 16, then takes the maximum value of this curve ordinate corresponding Abscissa be chosen to be optimal xoffadd parameter.
(3) 7, Figure 17 is that the translational movement that another is chosen finely tunes the curve synoptic diagram of parameter array, Figure 17 referring to Figure 1 Middle abscissa is xoffadd parameter value, and ordinate is crosstalk score value, and two curves are that left view and right view are corresponding respectively The curve of xoffadd parameter array.An ordinate threshold value (as shown in threshold line in Figure 17) is set, four abscissas are filtered out (i.e. tetra- abscissas of A, B, C, D), then take the median of abscissa B, C or take the median of abscissa A, D as optimal Xoffadd parameter.
It is worth noting that, for different stereoscopic display devices, it can be according to the specific of the stereo-picture shown to it It analyzes to select calculative correction parameter, and it is not absolutely required to carry out a calculating to each correction parameter.Example Such as when stereo-picture only has two vertical crosstalk stripeds, and the width of crosstalk striped is maximum, then only needing to calculate flat Shifting amount finely tunes parameter without calculating angle correct parameter and pixel correction parameter.For another example when stereo-picture calculates angle school After positive parameter and pixel correction parameter, the stereo-picture that stereoscopic display device is shown according to the two correction parameters is in pure color, then It no longer needs to calculate translational movement fine tuning parameter.
The application is corrected stereoscopic display device in more fixed positions, and obtains school using the inclination angle of crosstalk striped The accuracy of positive parameter, the correction parameter being calculated is high, when correcting stereoscopic display device, can be disappeared using the correction parameter Except promoting the display effect of stereoscopic display device because influencing caused by rigging error.
The application is corrected stereoscopic display device in more fixed positions, and obtains school using the inclination angle of crosstalk striped The accuracy of positive parameter, the correction parameter being calculated is high, when correcting stereoscopic display device, can be disappeared using the correction parameter Except promoting the display effect of stereoscopic display device because influencing caused by rigging error.
Referring to Figure 18, it is the knot of the correction parameter acquisition device of another stereoscopic display device of the embodiment of the present invention Composition.Compared with the embodiment of Fig. 3, the correction parameter acquisition device 21 of stereoscopic display device shown in Figure 18 is in addition to including image Acquiring unit 31, crosstalk fringe detection unit 32, Dip countion unit 33, parameter acquiring unit 34, further includes: image analysis list Member 181.
The stereo-picture that image analyzing unit 181 is used to receive image acquisition unit 31 is analyzed, according to need It is analyzed result and sends other units in device to.Stereo-picture can be changed to HSV sky by image analyzing unit 181 Between, the numerical value on three acquisition tone, saturation degree and brightness components, to analyze stereo-picture.
Further, referring to Figure 19, it is a kind of structure chart of image analyzing unit of the embodiment of the present invention.This image Analytical unit further comprises: crosstalk scoring computation subunit 191.Crosstalk scores computation subunit 191 for according to described vertical The color of body image calculates picture crosstalk scoring.The crosstalk scoring computation subunit 191 can be by the stereo-picture Color value carry out subregion statistics, further according to the color value section of different zones, assign corresponding weight to different zones, so Summation and weighted sum are carried out to the color value of all areas afterwards, finally by the sum of all weighted color values and all colours value Sum ratio as picture crosstalk score.
Specifically, many places require to detect the cross talk conditions of stereo-picture in this application, such as translate Amount computation subunit 111 just needs picture crosstalk scoring to judge whether stereo-picture is solid-color image, the picture crosstalk Scoring is an evaluation criterion to three-dimensional picture crosstalk degree, if the region that solid color occupies stereo-picture is more, and Color is more bright-coloured, then the picture crosstalk scoring of the stereo-picture is higher.
By taking red as an example, when judging the bright-coloured degree of red pixel, subregion statistics is carried out to the color value of image, if The color value of most of pixel all concentrates near color value 0, then can be concluded that image belongs to very bright-coloured red.According in this way Method can determine the bright-coloured degree of the entirety of image.It specifically, can be to picture on image when needing to judge red image The color value of vegetarian refreshments does a subregion weighted sum, the color value weighted sum of all pixels point divided by unweighted numerical value With, using this numerical value as pair stereo-picture crosstalk evaluate.So-called subregion weighting, refers to closer to most hunting pink The color value of (most hunting pink color value is 0) assigns bigger weight, for example the numerical value in the section color value (0-5) is summed so Afterwards multiplied by a biggish weight 64, the numerical value in the section color value (5-10) is summed multiplied by a weight 16, color value (10-15) The numerical value in section and multiplied by a small weight 4, the numerical value summation in the section color value (15-20) remains unchanged, and weighted sum is removed With unweighted and available one 1 to 64 numerical value, the evaluation of a degree of crosstalk can be made to image of this numerical value. Another method similarly is, is red stereoscopic display region for target, above-mentioned except carrying out to red objects value It, can also be to other non-targeted color values in the stereoscopic display region, such as the green color value of crosstalk, by this except weighted sum A little non-targeted color intervals sum and multiplied by the weights of a negative, then by all colours value area in the stereoscopic display region Between and its corresponding weighted value be multiplied summation, divided by the sum of unweighted all colours interval value, at this available one Value between (- 64,64) can also make the evaluation of a degree of crosstalk of this numerical value to image.For the solid of green Image is also handled in this way, available one judgement to the bright-coloured degree of green.
Figure 21 is referred to, is the knot of the correction parameter acquisition device of another stereoscopic display device of the embodiment of the present invention Composition, compared with the embodiment of Figure 18, the correction parameter acquisition device 21 of stereoscopic display device shown in Figure 21 is in addition to including figure As acquiring unit 31, crosstalk fringe detection unit 32, computing unit 33, parameter acquiring unit 34, image analyzing unit 181, screen Curtain region detection unit 182, further includes: detection interval setting unit 211.
Detection interval setting unit 211 sends the detection interval of setting to solid for parameter detecting section to be arranged Equipment is shown, so that stereoscopic display device shows stereo-picture according to the detection interval of setting, in order to the calculating of correction parameter. The detection interval of setting may include section size, parameter adjusting step etc..And in correction course, angle correct parameter, light Grid pixel correction parameter, translational movement coarse adjustment parameter, translational movement fine tuning correction parameter etc. require to carry out reference value detection interval Setting.Such as when correcting translational movement, it is (including flat that translational movement correction parameter is arranged by detection interval setting unit 211 first Shifting amount finely tunes parameter and the thick correction parameter of translational movement) detection interval and detection interval in value step-length, and by setting Detection interval is sent to micro- translation parameters and obtains subelement 111, and then micro- translation parameters obtains subelement 111 according to receiving Stereo-picture and parameter reference values corresponding in detection interval obtain (including the translational movement fine tuning of optimal translational movement correction parameter Parameter and the thick correction parameter of translational movement).
The application can automatically complete the calculating of correction parameter, be manually operated without operator, and be aobvious in solid Show that equipment is corrected after the assembly is completed, correction result reliability is high, can effectively promote stereo display effect.
Corresponding to the correction system of aforementioned stereoscopic display device, the application also proposes a kind of correction side of stereoscopic display device Method refers to Figure 22, is a kind of flow chart of the bearing calibration of stereoscopic display device of the embodiment of the present invention, and the method includes Following steps:
S2201 obtains the stereo-picture that the stereoscopic display device is shown when being located at least two fixed positions.
S2202 detects the stereoscopic display device and is located at crosstalk when at least two fixed positions in the stereo-picture Striped.It include at least one crosstalk striped in the stereo-picture
S2203 calculates the stripe angle of the crosstalk striped detected.
S2204, the corresponding crosstalk when the calculated stereoscopic display device is located at least two fixed positions The stripe angle of striped meets predetermined angle range, then obtains the correction parameter of the stereoscopic display device.
S2205 corrects the stereoscopic display device according to the correction parameter of the stereo-picture of acquisition.
Further, (i.e. step S2202) again can be into one when obtaining the stereo-picture that the stereoscopic display device is shown Step includes the following steps, refers to Figure 28:
S2801 receives the image frame including the stereoscopic display device taken.
S2802 determines the screen area of stereoscopic display device described in described image picture.It can be by obtaining the figure As the brightness value or chromatic value of pixel in picture, according still further to predetermined luminance threshold value or chromatic value to the pixel of the acquisition Brightness value carries out binary conversion treatment, to obtain corresponding quasi- screen area, then by the corresponding quasi- screen area according to pre- If shape carries out merger division, to determine the screen area of stereoscopic display device described in described image picture.
S2803 obtains the stereo-picture that the screen area is shown.
Further, (step S2202) may further include following again when detecting the crosstalk striped in stereo-picture Step refers to Figure 23:
S2301 calculates the color value of pixel in the stereo-picture.
S2302 obtains the crosstalk striped in the stereo-picture according to calculated color value.
Further, (i.e. step S2203) can be wrapped further again when calculating the inclination angle of the crosstalk striped detected Following steps are included, Figure 24 is referred to:
S2401 calculates the color value of pixel in the stereo-picture.
S2402 determines the line of demarcation between the crosstalk striped according to the color value of the calculated pixel.It can To be fitted by color value of the methods of the least square method to the pixel, the lines that fitting is obtained are as the string Disturb the line of demarcation between striped.
S2403, judges whether the linear distribution in line of demarcation meets preset linear distribution condition.It is entered step if meeting S2404, if not satisfied, then giving up this line of demarcation.The linear distribution condition preferably linearly distribution.Further, sentence When the linear distribution in disconnected line of demarcation, the pixel coordinate sequence in the line of demarcation can be first obtained, then calculate the line of demarcation The covariance matrix of pixel coordinate sequence then calculates the characteristic value of the covariance matrix, finally according to calculated institute State the linear degree that characteristic value differentiates the line of demarcation.
S2404 calculates the inclination angle in the line of demarcation, using the inclination angle as the crosstalk striped.
It is worth noting that, if according to the color value of the calculated pixel determine a plurality of crosstalk striped and Corresponding a plurality of line of demarcation can calculate inclining for a plurality of line of demarcation between crosstalk striped to improve the computational accuracy at inclination angle Angle, and average value is calculated, using the inclination angle as the line of demarcation.
In step S2204, correction parameter includes angle correct parameter, the thick correction parameter of translational movement, grating pixel correction ginseng Number, translational movement fine tuning parameter etc..It is worth noting that, for different stereoscopic display devices, it can be vertical according to what is shown to it The concrete analysis of body image selects calculative correction parameter, and it is not absolutely required to carry out to each correction parameter A time calculating.Such as when stereo-picture only has two vertical crosstalk stripeds, and the width of crosstalk striped is maximum, then only Need to calculate translational movement correction parameter without calculating angle correct parameter.For another example when stereo-picture calculates angle correct ginseng After number, the stereo-picture that display equipment is shown according to the two correction parameters then no longer needs to calculate translational movement correction ginseng in pure color Number.
Further, when the inclination angle of the calculated crosstalk striped meets set angle, then according to corresponding perspective view Picture may further include following steps when obtaining angle correct parameter, refer to Figure 25:
S2501, multiple pixels ginseng that the multiple stereo-picture is corresponding when meeting predetermined angle range according to the inclination angle Number obtains angle correct parameter reference values corresponding with the multiple pixel-parameters.
S2502 calculates the pixel ginseng according to the corresponding angle correct parameter reference values of the multiple pixel-parameters Several linear relationships with angle correct parameter reference values.
S2503, according to the linear relationship of the pixel-parameters and angle correct parameter reference values, the stereoscopic display device Light-splitting device grating physical parameter and preset grating focal length parameter f1 and the stereoscopic display device fixed position Information determines the angle correct parameter of the corresponding stereo-picture in the inclination angle, using the angle school as the stereoscopic display device Positive parameter.
Further, it may comprise steps of when obtaining the thick correction parameter of translational movement, refer to Figure 26:
S2601, judges whether the central point of the crosstalk striped is in the central area of the screen area.If judgement knot Fruit be it is yes, then enter step S2602, if judging result be it is no, enter step S2603.
S2602, the center of the crosstalk striped is corresponding when the central area of the stereo-picture screen area Translational movement parameter as the thick correction parameter of the translational movement.
S2603 adjusts the translational movement parameter of the stereo-picture, so that the stereoscopic display device is according to adjusted flat Shifting amount parameter shows the stereo-picture.And return step S2601.
Further, the grating pixel correction parameter and grating focus correction ginseng of the corresponding stereo-picture in the inclination angle are obtained It may further include following steps when number, refer to Figure 29:
S2901, judges whether the width of the crosstalk striped covers the screen area.It can be by judging the crosstalk Whether the width of striped is greater than or equal to the width of the screen area to judge whether it covers the screen area.If judgement As a result be it is yes, then enter step S2902；If judging result be it is no, enter step S2903.
S2902, the pixel-parameters corresponding light of the stereo-picture when crosstalk striped is covered the screen area Grid pixel-parameters are joined as the grating pixel correction parameter using corresponding grating focal length parameter as the grating focus correction Number.
S2903 adjusts the pixel-parameters of the stereo-picture, so that the stereoscopic display device is according to pixel adjusted Parameter shows the stereo-picture；And return step S2901.
Specifically, when executing step S2902, i.e. the grating pixel correction of the light-splitting device of calculating stereoscopic display device is joined When several and grating focus correction parameter, Figure 34 is referred to, is a kind of point of calculating stereoscopic display device of the embodiment of the present invention Flow chart when the grating pixel correction parameter and grating focus correction parameter of optical device comprising following steps:
S3401, according to the corresponding pixel-parameters of each fixed position, each fixed position to stereoscopic display device away from The grating pixel-parameters of light-splitting device from, stereoscopic display device and the physical relation of grating focal length parameter, obtain stereoscopic display The grating pixel correction parameter of the light-splitting device of equipment and the linear relationship of grating focus correction parameter.
Wherein, the corresponding pixel-parameters of each fixed position refer to that the stereoscopic display device is located at each fixed position And the stereo-picture crosstalk striped covers the pixel-parameters of the stereo-picture when screen area, the stereoscopic display is set Standby locating fixed position information refer to the fixed position information be the stereoscopic display device between filming apparatus away from From information.
S3402 utilizes the grating pixel correction parameter and grating focus correction parameter of the light-splitting device of stereoscopic display device Linear relationship calculate stereoscopic display device light-splitting device grating pixel correction parameter and grating focus correction parameter Value.
Wherein, due to the parabolically shape of the variation linear relationship between pixel-parameters and crosstalk width of fringe, string Disturb width of fringe just cover screen region when, two pixel-parameters values can be obtained, i.e. the first pixel-parameters and the second pixel ginseng Number.In order to further increase accuracy, the average value of first pixel-parameters and second pixel-parameters can be calculated, it will The calculated average value is as the grating pixel correction parameter.
Specifically, the linear relationship between the pixel correction parameter of acquisition and grating focus correction parameter is:It therefore can be according to following formula when calculating grating pixel correction parameter and grating focus correction parameter:Wherein, diIt is located at fixed position information when the i-th fixed position, pitch for the stereoscopic display devicei When being located at the i-th fixed position for the stereoscopic display device and the crosstalk striped covers the perspective view when screen area The pixel-parameters of picture, f are the grating focus correction parameter of the light-splitting device of stereoscopic display device, and t0 is point of stereoscopic display device The grating pixel correction parameter of optical device.
Further, the pixel of stereo-picture is corresponded to when getting the stereoscopic display device and being located at multiple fixed positions When parameter, then the step of calculating the grating pixel correction parameter and grating focus correction parameter of the light-splitting device includes: by institute State pixel-parameters that stereo-picture is corresponded to when the stereoscopic display device of acquisition is located at multiple fixed positions and described three-dimensional aobvious Show that fixed position information locating for equipment all substitutes into formula:Matrix is formed, and calculates the matrix Minimal error, corresponding grating pixel-parameters and grating focal length parameter will be met when minimal error as the light-splitting device Grating pixel correction parameter and grating focus correction parameter.
Further, it may comprise steps of when obtaining translational movement fine tuning parameter, refer to Figure 27:
S2701, setting translational movement finely tune parameter detecting section.
S2702 finely tunes parameter detecting section according to the translational movement and receives stereo-picture.
S2703 extracts the color value of the stereo-picture.
S2704 carries out subregion statistics to the color value of the stereo-picture.
S2705 assigns corresponding weight to different zones according to the color value section of different zones.
S2706 carries out summation and weighted sum to the color value of all areas.
S2707, using the sum of all weighted color values and all colours value and ratio score as picture crosstalk.
S2708 scores according to picture crosstalk and obtains translational movement fine tuning parameter.
Wherein, it is scored according to picture crosstalk when obtaining translational movement fine tuning parameter, according to the difference of shooting stereo images position, Two ways can be divided into: the first obtains picture crosstalk scoring when shooting stereo images position is located at optimal viewing position Translational movement correction parameter corresponding to highest stereo-picture finely tunes parameter as optimal translational movement.Second, work as stereo-picture When camera site is not at optimal viewing position, translation of the acquisition crosstalk scoring greater than the stereo-picture of a given threshold first Parameter is measured secondly translational movement is obtained according to the translational movement parameter reference values and finely tune parameter selection region, so as reference value The median for obtaining translational movement fine tuning parameter selection region afterwards finely tunes parameter as optimal translational movement.
The application can automatically complete the calculating of correction parameter, be manually operated without operator, and be aobvious in solid Show that equipment is corrected after the assembly is completed, correction result reliability is high, can effectively promote stereo display effect.
Through the above description of the embodiments, those skilled in the art can be understood that the embodiment of the present invention The mode of necessary general hardware platform can also be added to realize by software by hardware realization.Based on such reason Solution, the technical solution of the embodiment of the present invention can be embodied in the form of software products, which can store one In a non-volatile memory medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are used so that a meter It calculates machine equipment (can be personal computer, server or the network equipment etc.) and executes each implement scene institute of the embodiment of the present invention The method stated.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession Member, is not departing within the scope of technical scheme, when the technology contents using the disclosure above make a little change or modification For the equivalent embodiment of equivalent variations, but it is all without departing from technical scheme content, it is right according to the technical essence of the invention Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.

Claims (35)

1. a kind of bearing calibration of stereoscopic display device characterized by comprising
It obtains the stereoscopic display device and is located at the stereo-picture shown when at least two fixed positions；
The crosstalk striped that the stereoscopic display device is located in the stereo-picture obtained when at least two fixed positions is detected, It include at least one crosstalk striped in the stereo-picture；
Calculate the stripe angle of the crosstalk striped detected；
The striped of the corresponding crosstalk striped when the calculated stereoscopic display device is located at least two fixed positions When inclination angle meets predetermined angle range, then the correction parameter of the stereoscopic display device is obtained；
The stereoscopic display device is corrected according to the correction parameter of acquisition；Wherein,
The correction parameter of the stereoscopic display device includes: angle correct parameter；
It is described when the item for calculating corresponding crosstalk striped when the stereoscopic display device is located at least two fixed positions When line inclination angle meets predetermined angle range, then the step of obtaining the correction parameter of the stereoscopic display device, comprising:
Obtain the angle school that the stereoscopic display device is located at the corresponding stereo-picture in inclination angle when any one fixed position Positive parameter, using the angle correct parameter as the stereoscopic display device；
The acquisition stereoscopic display device is located at the stereo-picture shown when at least two fixed positions, comprising:
It obtains respectively corresponding when the stereoscopic display device is located at each fixed position and shows according to different pixel-parameters Multiple stereo-pictures；
It is described when the inclination angle of the calculated crosstalk striped meets predetermined angle range, then obtain the stereoscopic display device Correction parameter the step of, comprising:
Multiple pixel-parameters corresponding to the multiple stereo-picture when meeting predetermined angle range according to the inclination angle, described in acquisition Stereoscopic display device is located at the corresponding angle correct parameter reference values of the multiple pixel-parameters when any fixed position；According to obtaining The multiple pixel-parameters that take and corresponding angle correct parameter reference values calculate the stereoscopic display device and are located at and appoint Linear relationship when one fixed position between the pixel-parameters and angle correct parameter reference values；According to the pixel-parameters with The grating physical parameter of the light-splitting device of linear relationship, the stereoscopic display device between angle correct parameter reference values and pre- If grating focal length parameter and the stereoscopic display device fixed position information, determine the angle of the stereoscopic display device Correction parameter reference value is spent, using the angle correct parameter as the stereoscopic display device.
2. the bearing calibration of stereoscopic display device as described in claim 1, which is characterized in that described to obtain the display equipment In the step of stereo-picture shown when positioned at least two fixed positions, the linear arrangement of at least two fixed positions Or across arrangement.
3. the bearing calibration of stereoscopic display device as described in claim 1, which is characterized in that described to obtain the stereoscopic display Equipment is located at the stereo-picture shown when at least two fixed positions, comprising:
What reception took includes that the stereoscopic display device is located at the image frame shown when at least two fixed positions；
Determine the screen area of stereoscopic display device described in described image picture；
Obtain the stereo-picture that the screen area is shown.
4. the bearing calibration of stereoscopic display device as claimed in claim 3, which is characterized in that the determining described image picture In screen area the step of, comprising:
Obtain the brightness value or chromatic value of pixel in described image picture；
Two are carried out according to predetermined luminance threshold value or default chromatic value are corresponding to the brightness value or chromatic value of the pixel of the acquisition Value processing, to obtain corresponding quasi- screen area；
The corresponding quasi- screen area is subjected to merger division according to preset shape, with the determination screen area.
5. the bearing calibration of stereoscopic display device as described in claim 1, which is characterized in that the detection obtains described vertical The step of crosstalk striped in body image includes:
Calculate the color value of pixel in the stereo-picture；
The crosstalk striped in the stereo-picture is obtained according to calculated color value.
6. the bearing calibration of stereoscopic display device as described in claim 1, which is characterized in that the calculating detects described The step of stripe angle of crosstalk striped includes:
Calculate the color value of pixel in the stereo-picture；
According to the color value of the calculated pixel, the line of demarcation between the crosstalk striped is determined；
The inclination angle for calculating the line of demarcation, using the stripe angle as the crosstalk striped.
7. the bearing calibration of stereoscopic display device as claimed in claim 6, which is characterized in that the basis calculates the picture The color value of vegetarian refreshments determines that the step of line of demarcation between the crosstalk striped includes:
The color value of the pixel is fitted, the lines that fitting is obtained are as the boundary between the crosstalk striped Line.
8. the bearing calibration of stereoscopic display device as claimed in claim 7, which is characterized in that the face to the pixel After color value is fitted, further includes:
Judge whether the linear distribution of the lines for being fitted and obtaining meets preset linear distribution condition；
If meeting preset linear distribution condition, using the obtained lines that are fitted as the boundary between the crosstalk striped Line.
9. the bearing calibration of stereoscopic display device as claimed in claim 6, which is characterized in that if according to the calculated picture The color value of vegetarian refreshments determines a plurality of line of demarcation between the crosstalk striped, then the step at the inclination angle for calculating the line of demarcation Suddenly include:
Calculate separately the inclination angle in a plurality of line of demarcation between the crosstalk striped, and calculate a plurality of line of demarcation inclination angle it is flat Mean value, using the inclination angle as the line of demarcation.
10. the bearing calibration of stereoscopic display device as described in claim 1, which is characterized in that the stereoscopic display device Correction parameter includes: the thick correction parameter of translational movement；
The bearing calibration of the stereoscopic display device further include:
When the inclination angle of the calculated crosstalk striped meets predetermined angle range, then the stereoscopic display device is obtained respectively The translational movement thick correction parameter of the corresponding stereo-picture in inclination angle when positioned at each fixed position.
11. the bearing calibration of stereoscopic display device as claimed in claim 10, which is characterized in that described to obtain described stand respectively Body shows the step of equipment is located at the translational movement thick correction parameter of the corresponding stereo-picture in inclination angle when each fixed position, wraps It includes:
Judge whether the central point of the crosstalk striped is in the center of screen area；
If the determination result is YES, then using the corresponding translational movement parameter of the crosstalk striped as the thick correction parameter of the translational movement； Alternatively,
If judging result be it is no, the translational movement parameter of the stereo-picture is adjusted, so that the stereoscopic display device is according to tune Translational movement parameter after whole shows the stereo-picture；And it returns and judges whether the central point of the crosstalk striped is in described The step of center of stereo-picture screen area.
12. the bearing calibration of stereoscopic display device as claimed in claim 10, which is characterized in that the stereoscopic display device Correction parameter includes: the grating pixel correction parameter and grating focus correction parameter of light-splitting device；
It is described when the stripe angle of the calculated crosstalk striped meets predetermined angle range, then obtain the stereoscopic display The correction parameter of equipment, comprising:
Obtain the grating pixel correction parameter and grating focus correction parameter of the stereoscopic display device.
13. the bearing calibration of stereoscopic display device as claimed in claim 12, which is characterized in that the acquisition is described three-dimensional aobvious The step of showing the grating pixel correction parameter and grating focus correction parameter of equipment, comprising:
Judging the width of the crosstalk striped of the stereo-picture when stereoscopic display device is located at least two fixed positions is No cover screen region；
If the determination result is YES, then it obtains the stereoscopic display device and is located at least two fixed positions and the stereo-picture Crosstalk striped covers the pixel-parameters of the stereo-picture when screen area, and is set according to the stereoscopic display of acquisition It is standby to be located at least two fixed positions and the stereo-picture crosstalk striped covers the stereo-picture when screen area Fixed position information locating for pixel-parameters, the stereoscopic display device, calculates the light-splitting device of the stereoscopic display device Grating pixel correction parameter and the grating focus correction parameter, the fixed position information are the stereoscopic display device to bat Take the photograph the distance between device information；Or
If judging result be it is no, the pixel-parameters of the stereo-picture are adjusted, so that the stereoscopic display device is according to adjustment Pixel-parameters afterwards show the stereo-picture；And it returns and judges that the stereoscopic display device is located at least two fixed positions The step of whether width of the crosstalk striped of Shi Suoshu stereo-picture covers the screen area.
14. the bearing calibration of stereoscopic display device as claimed in claim 13, which is characterized in that described to calculate the optical splitter The grating pixel correction parameter and raster correction focal length parameter of part, comprising:
According to formula:
Wherein, diIt is located at fixed position information when the i-th fixed position, pitch for the stereoscopic display deviceiFor the solid When display equipment is located at the i-th fixed position and the crosstalk striped covers the pixel ginseng of the stereo-picture when screen area Number, f are the grating focus correction parameter of the light-splitting device of stereoscopic display device, and t0 is the light of the light-splitting device of stereoscopic display device Grid pixel correction parameter.
15. the bearing calibration of stereoscopic display device as claimed in claim 14, which is characterized in that described three-dimensional aobvious when getting Show when corresponding to the pixel-parameters of stereo-picture when equipment is located at multiple fixed positions, the grating image for calculating the light-splitting device The step of plain correction parameter and grating focus correction parameter includes:
Pixel-parameters and the institute of stereo-picture are corresponded to when the stereoscopic display device of the acquisition is located at multiple fixed positions It states fixed position information locating for stereoscopic display device and all substitutes into formula:Matrix is formed, and is calculated The minimal error of the matrix will meet corresponding grating pixel-parameters and grating focal length parameter when minimal error and divide as described The grating pixel correction parameter and grating focus correction parameter of optical device.
16. the bearing calibration of stereoscopic display device as claimed in claim 13,
The width of the crosstalk striped of the stereo-picture cover the width that the screen area includes: the crosstalk striped be greater than or Equal to the screen area；
The method also includes: the first of stereo-picture when obtaining the width of the crosstalk striped equal to the screen area Pixel-parameters and the second pixel-parameters；
The average value for calculating first pixel-parameters and second pixel-parameters, using the calculated average value as institute The width for stating crosstalk striped covers the pixel-parameters of the stereo-picture when screen area.
17. the bearing calibration of stereoscopic display device as claimed in claim 12, which is characterized in that the correction of the stereo-picture Parameter further include: translational movement finely tunes parameter；
The bearing calibration of the stereoscopic display device further include:
It is described when the stripe angle of the calculated crosstalk striped meets predetermined angle range, then obtain the stereoscopic display The correction parameter of equipment, comprising:
In the case where the stereoscopic display device is opened and tracked, the translational movement correction fine tuning ginseng of the stereoscopic display device is obtained Number.
18. the bearing calibration of stereoscopic display device as claimed in claim 17, which is characterized in that the acquisition is described three-dimensional aobvious Show that the step of translational movement of equipment finely tunes correction parameter includes:
When the stereoscopic display device is opened and tracked, the color value of the stereo-picture is extracted；
According to the color value of the stereo-picture, the picture crosstalk scoring of the stereo-picture is calculated；
The translational movement, which is obtained, according to the scoring of calculated picture crosstalk finely tunes parameter.
19. the bearing calibration of stereoscopic display device as claimed in claim 18, which is characterized in that described according to the perspective view The color value of picture, calculate the stereo-picture picture crosstalk scoring the step of include:
Subregion statistics is carried out to the color value of the stereo-picture；
According to the color value section of different zones, corresponding weight is assigned to different zones；
Summation and weighted sum are carried out to the color value of all areas；
Using the sum of all weighted color values and all colours value and ratio score as picture crosstalk.
20. a kind of correction system of stereoscopic display device, which is characterized in that including stereoscopic display device, filming apparatus and solid Show that the correction parameter acquisition device of equipment, the correction parameter acquisition device of the stereoscopic display device further include:
Image acquisition unit, for obtaining the perspective view shown when the stereoscopic display device is located at least two fixed positions Picture；
Crosstalk fringe detection unit, for detecting the institute got when the stereoscopic display device is located at least two fixed positions The crosstalk striped in stereo-picture is stated, includes at least one crosstalk striped in the stereo-picture；
Dip countion unit, for calculating the stripe angle of the crosstalk striped detected；
Parameter acquiring unit, for corresponding when the calculated stereoscopic display device is located at least two fixed positions The stripe angle of crosstalk striped when meeting predetermined angle range, then obtain the correction parameter of the stereoscopic display device, with In the correction stereoscopic display device；Wherein,
The correction parameter of the stereoscopic display device includes: angle correct parameter；
The corresponding string when the calculated stereoscopic display device of the Dip countion unit is located at least two fixed positions The inclination angle for disturbing striped meets predetermined angle range, then obtain when the stereoscopic display device is located at any one fixed position described in The angle correct parameter of the corresponding stereo-picture in inclination angle, using the angle correct parameter as the stereoscopic display device；
The acquisition stereoscopic display device is located at the stereo-picture shown when at least two fixed positions, comprising:
It obtains respectively corresponding when the stereoscopic display device is located at each fixed position and shows according to different pixel-parameters Multiple stereo-pictures；
It is described when the inclination angle of the calculated crosstalk striped meets predetermined angle range, then obtain the stereoscopic display device Correction parameter the step of, comprising:
Multiple pixel-parameters corresponding to the multiple stereo-picture when meeting predetermined angle range according to the inclination angle, described in acquisition Stereoscopic display device is located at the corresponding angle correct parameter reference values of the multiple pixel-parameters when any fixed position；According to obtaining The multiple pixel-parameters that take and corresponding angle correct parameter reference values calculate the stereoscopic display device and are located at and appoint Linear relationship when one fixed position between the pixel-parameters and angle correct parameter reference values；According to the pixel-parameters with The grating physical parameter of the light-splitting device of linear relationship, the stereoscopic display device between angle correct parameter reference values and pre- If grating focal length parameter and the stereoscopic display device fixed position information, determine the angle of the stereoscopic display device Correction parameter reference value is spent, using the angle correct parameter as the stereoscopic display device.
21. the correction system of stereoscopic display device as claimed in claim 20, which is characterized in that at least two fixed point position Set linear arrangement or across arrangement.
22. the correction system of stereoscopic display device as claimed in claim 20, which is characterized in that described image acquiring unit packet It includes:
Receiving subelement, for receiving the image frame for showing screen including the stereoscopic display device taken；
Subelement is determined, for determining the screen of stereoscopic display device described in the received described image picture of the receiving subelement Curtain region, and obtain the stereo-picture that the screen area is shown.
23. the correction system of stereoscopic display device as claimed in claim 22, which is characterized in that the determining subelement packet It includes:
Brightness of image analyzes subelement, for obtaining the brightness value of pixel in image frame；
Binary conversion treatment subelement, for carrying out two-value according to brightness value of the preset luminance threshold to pixel on image frame Change processing, to obtain corresponding quasi- screen area；
Range searching subelement, the region for the search setting shape in the corresponding quasi- screen area；
Merger divides subelement, and the region of the setting shape for that will search carries out merger division, and determines the screen area Domain, to determine the screen area of stereoscopic display device described in described image picture.
24. the correction system of stereoscopic display device as claimed in claim 20, which is characterized in that the stereoscopic display device Correction parameter acquisition device further include:
Image analyzing unit, for calculating the color value of pixel in the stereo-picture；
The crosstalk fringe detection unit determines in the stereo-picture according to the calculated color value of described image analytical unit Crosstalk striped.
25. the correction system of stereoscopic display device as claimed in claim 20, which is characterized in that the stereoscopic display device Correction parameter acquisition device further include:
Image analyzing unit, for calculating the color value of pixel in the stereo-picture；
The Dip countion unit further comprises:
Line of demarcation obtains subelement, pixel in the stereo-picture for being calculated according to described image analytical unit Color value determines the line of demarcation between the crosstalk striped；
Computation subunit, for according to the inclination angle for calculating the line of demarcation and obtaining the line of demarcation that subelement determines, using as The inclination angle of the crosstalk striped.
26. the correction system of stereoscopic display device as claimed in claim 25, which is characterized in that it is single that the line of demarcation obtains son Member is fitted by the color value to the pixel, and the lines that fitting is obtained are as the boundary between the crosstalk striped Line.
27. the correction system of stereoscopic display device as claimed in claim 26, which is characterized in that the Dip countion unit is also Include:
Linear detection sub-unit, for judging whether completely the line of demarcation obtains the linear distribution for the lines that subelement is fitted The preset linear distribution condition of foot, if meeting preset linear distribution condition, using the obtained lines that are fitted as described in Line of demarcation between crosstalk striped.
28. the correction system of stereoscopic display device as claimed in claim 25, which is characterized in that if the line of demarcation obtains son Unit gets a plurality of line of demarcation, then the computation subunit calculates separately the inclination angle in a plurality of line of demarcation, and calculates average Value, using the inclination angle as the crosstalk striped.
29. the correction system of stereoscopic display device as claimed in claim 20, which is characterized in that the stereoscopic display device Correction parameter further include: the thick correction parameter of translational movement；
When the Dip countion unit calculate it is corresponding described when the stereoscopic display device is located at least two fixed positions The inclination angle of crosstalk striped meets predetermined angle range, then the parameter acquiring unit obtains the stereoscopic display device respectively and is located at The translational movement thick correction parameter of the corresponding stereo-picture in inclination angle when each fixed position.
30. the correction system of stereoscopic display device as claimed in claim 29, which is characterized in that the parameter acquiring unit is also Further comprise:
Central point detection sub-unit, for judge crosstalk striped that the crosstalk fringe detection unit detects central point whether Central area in screen area；
Thick translation parameters obtains subelement, for judging the central point of the crosstalk striped in the central point detection sub-unit When central area in the stereo-picture screen area, ginseng is slightly corrected using corresponding translational movement parameter as the translational movement Number.
31. the correction system of stereoscopic display device as claimed in claim 29, which is characterized in that the stereoscopic display device Correction parameter includes: the grating pixel correction parameter and grating focus correction parameter of light-splitting device；
When the Dip countion unit calculate it is corresponding described when the stereoscopic display device is located at least two fixed positions The inclination angle of crosstalk striped meets predetermined angle range, then the parameter acquiring unit obtains the corresponding stereo-picture in the inclination angle Grating pixel correction parameter and grating focus correction parameter.
32. the correction system of stereoscopic display device as claimed in claim 31, which is characterized in that the parameter acquiring unit is also Further comprise:
Width of fringe detection sub-unit, crosstalk when for judging that the stereoscopic display device is located at least two fixed positions The width for the crosstalk striped that fringe detection unit detects whether cover screen region；
Pixel focal length parameter obtains subelement, for judging the width of the crosstalk striped when the width of fringe detection sub-unit When degree covers the screen area, then obtains the stereoscopic display device and be located at least two fixed positions and the stereo-picture Crosstalk striped cover the pixel-parameters of the stereo-picture when screen area, and the stereoscopic display according to acquisition Equipment is located at least two fixed positions and the stereo-picture crosstalk striped covers the stereo-picture when screen area Pixel-parameters, fixed position information locating for the stereoscopic display device, calculate the light-splitting device of the stereoscopic display device Grating pixel correction parameter and grating focus correction parameter, the fixed position information be the stereoscopic display device to image The distance between device information.
33. the correction system of stereoscopic display device as claimed in claim 32, which is characterized in that the parameter acquiring unit meter According to following formula when calculating the grating pixel correction parameter and grating focus correction parameter of the light-splitting device of stereoscopic display device:
Wherein, diIt is located at fixed position information when the i-th fixed position, pitch for the stereoscopic display deviceiFor the solid When display equipment is located at the i-th fixed position and the crosstalk striped covers the pixel ginseng of the stereo-picture when screen area Number, f are the grating focus correction parameter of the light-splitting device of stereoscopic display device, and t0 is the light of the light-splitting device of stereoscopic display device Grid pixel correction parameter.
34. the correction system of stereoscopic display device as claimed in claim 33, which is characterized in that when the width of fringe detects When subelement judges that the width of the crosstalk striped is equal to the screen area, the pixel focal length parameter obtains subelement and obtains Corresponding first pixel-parameters and the second pixel-parameters are taken, and calculate first pixel-parameters and second pixel-parameters Average value, and using the calculated average value as described vertical when the width of the crosstalk striped covering screen area The pixel-parameters of body image.
35. the correction system of stereoscopic display device as claimed in claim 31, which is characterized in that the correction of the stereo-picture Parameter further include: translational movement finely tunes parameter；When the inclination angle of the calculated crosstalk striped of the Dip countion unit meets preset angle It spends range and the stereoscopic display device is opened in the case where tracking, obtain the translational movement correction fine tuning of the stereoscopic display device Parameter.
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