CN102932664A - Playing method of video of naked 3D (three-dimensional) television wall - Google Patents
Playing method of video of naked 3D (three-dimensional) television wall Download PDFInfo
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- CN102932664A CN102932664A CN2012104279683A CN201210427968A CN102932664A CN 102932664 A CN102932664 A CN 102932664A CN 2012104279683 A CN2012104279683 A CN 2012104279683A CN 201210427968 A CN201210427968 A CN 201210427968A CN 102932664 A CN102932664 A CN 102932664A
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Abstract
The invention relates to a 3D (three-dimensional) video display technology, and discloses a playing method of video of a naked 3D television wall to fulfill the playing requirement of the naked 3D television wall. The method comprises the following steps of: performing YUV (luma and chroma) to RGB (red, green, blue) spatial switching on a decoded naked 3D video; setting a plurality of windows to capture images of each naked 3D display to be displayed; respectively acquiring data of images to be processed according to the position relationship of the naked 3D displays; and performing image synthesis and output display on each naked 3D display by combining the grating arrangement characteristics of the naked 3D display. The method is applicable to a naked 3D television wall system.
Description
Technical field
The present invention relates to the 3D video display technology, specifically, relate to a kind of bore hole 3D video wall video broadcasting method.
Background technology
Compare with the two-dimensional video demonstration, the demonstration of 3D video and people's visual signature mate more, so that people are rich in third dimension and feeling of immersion when watching image.At present, 3D shows and mainly to be divided into two kinds of spectacle and bore hole formulas, and wherein spectacle 3D shows that mainly the bore hole formula mainly is divided into disparity barrier formula and post mirror lens type take active-shutter and passive polarization type as main.From applied environment, the application that spectacle 3D shows mainly concentrates on consumer level market, such as stereoscopic TV, stereoprojection etc.; Bore hole formula 3D shows because technology and cost factor, at present mainly in the airport, the commercial demonstration and the small size consumption electronic product such as exhibition.Because bore hole formula 3D Display Technique does not need extra equipment can allow spectators enjoy stereoeffect, thereby be subject to consumer's generally expectation and the attention of various countries producer, just become the developing direction of stereo display of future generation.
The cardinal principle that bore hole 3D shows be by light block or the modes such as refraction of light are delivered to the multi-view image with nuance on the display floater respectively in beholder's the right and left eyes, produce third dimension thereby in brain, merge.It mainly is according to raster pattern bore hole 3D display characteristic that bore hole 3D plays, and many viewpoints 3D rendering is played up, and is about to many viewpoints 3D rendering and carries out the rgb pixel permutatation according to the grating display characteristic, satisfies the broadcast request of bore hole 3D TV.
Compare with traditional 2D video wall, bore hole 3D video wall can be broken through the limit of traditional 2D spliced display wall, realize not needing any auxiliary equipment just can intuitively see the brand-new 3D picture of high definition, have powerful impulsive force and impact, can be widely used in the fields such as displaying, medium, advertisement.Because bore hole 3D shows slit or the column mirror grating technology of often adopting, the broadcast mode of existing 2D video wall can not be applicable to the broadcast request of bore hole 3D video wall, therefore how to realize that a kind of bore hole 3D video wall video broadcasting method is a problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind of bore hole 3D video wall video broadcasting method, satisfy the broadcast demand of bore hole 3D video wall.
The present invention solves the problems of the technologies described above the technical scheme that adopts:
Bore hole 3D video wall video broadcasting method may further comprise the steps:
A. obtain the connecting method of bore hole 3D video wall, the display resolution of each bore hole 3D display and the relevant information of bore hole 3D video to be played;
B. carry out the conversion to RGB by YUV to bore hole 3D decoding video signal to be played, and to the image of decoding;
C. to the image of decoding according to cutting apart, and the setting image buffer storage space identical with the viewpoint number of bore hole 3D video to be played is for the decoded picture of depositing each viewpoint;
D. the position relationship according to bore hole 3D display obtains respectively the pending view data of each bore hole 3D display;
E. according to the grating array format the pending image of each bore hole 3D display is carried out pixel and synthesize, obtain the composite signal for each bore hole 3D display;
F. will input to simultaneously for the composite signal of each bore hole 3D display corresponding bore hole 3D display shows.
Further, among the step a, the relevant information of described bore hole 3D video to be played comprises: viewpoint number, resolution and the connecting method of 3D video.
Further, among the step b, described bore hole 3D decoding video signal to be played is referred to: to by calling video decoding chip the 3D vision signal that is obtained by the compression of 2D Image Mosaics being carried out the 2D decoding.
Further, among the step b, described to the decoding image carry out being referred to the conversion of RGB by YUV: by call YUV turn the RGB modular converter to the decoding image carry out the conversion of color space, the rgb image data after obtaining changing.
Further, among the step c, the image of decoding is cut apart the decoded picture of a viewpoint of each image buffer storage space storage according to the viewpoint number of bore hole 3D video to be played; Comprise also in this step that the image resolution ratio that records each viewpoint is w * h, wherein w is the resolution of horizontal direction, and h is the resolution on the vertical direction.
Further, in the steps d, intercept the pending image of each display by the window identical with display number in the bore hole 3D video wall is set, then obtain respectively the pending view data of each display according to the position relationship of display in bore hole 3D video wall.
Concrete, when described bore hole 3D video wall is when being spliced with 2 * 2 bore hole 3D displays, then is in the pending view data of the display of video wall top left region and is the view data of the top left region of the general image of each visual point image after synthesizing; Be in the pending view data of the display of video wall right regions and be the view data of the right regions of the general image of each visual point image after synthetic; Be in the pending view data of the display in zone, video wall lower-left and be the view data in the zone, lower-left of the whole image of each visual point image after synthetic; Be in the pending view data of the display of video wall lower right area and be the view data of the lower right area of the whole image of each visual point image after synthetic; The resolution of the view data that each display is pending is w ' * h ', wherein
Further, among the step e, describedly the pending image of each bore hole 3D display is carried out that pixel is synthetic to be referred to according to the grating array format: obtain many viewpoints 3D rendering synthesis mode according to raster pattern bore hole 3D display characteristic, described raster pattern bore hole 3D indicating characteristic is: establishing the grating cycle is p, the grating slope degree is θ, and the display screen sub pixel width is W
p, the viewpoint number that adopts is K, these four parameters should satisfy following relation:
Wherein,
For on round symbol;
Array format according to the multi-view image RGB that answers with grating pair according to pixels synthesizes the pending image of each bore hole 3D display.
The invention has the beneficial effects as follows: in conjunction with bore hole 3D video wall and grating type three-dimensional display characteristic, synthetic by the image to each bore hole 3D display, can effectively solve present stage 3D video wall and play demand, owing to substantially not needing extra hardware auxiliary, thereby reducing the use cost of 3D Video Wall Display System.
Description of drawings
Fig. 1 is bore hole 3D video wall video broadcasting method embodiment flow chart of the present invention.
Embodiment
The invention discloses a kind of bore hole 3D video wall video broadcasting method, by the processing to bore hole 3D video decode signal, can satisfy the broadcast request of bore hole 3D video wall, the basic thought of the method is: carry out YUV by the bore hole 3D video to decoding and turn the rgb space conversion, a plurality of windows are set intercept each bore hole 3D display image to be shown, position relationship according to bore hole 3D display obtains respectively pending view data, and carries out the synthetic also output display of image in conjunction with bore hole 3D demonstration grating alignment characteristics for each bore hole 3D display.
The solution of the present invention is further described below in conjunction with drawings and Examples.
Referring to Fig. 1, the video broadcasting method in this example may further comprise the steps:
A. obtain the connecting method of bore hole 3D video wall and obtain the relevant information of display resolution and the bore hole 3D video to be played of each bore hole 3D display;
B. call video decoding chip to bore hole 3D decoding video signal, and the image of decoding is carried out YUV turn rgb space conversion;
C. according to the connecting method of many viewpoints 3D video, the decoded picture that a plurality of image buffer storages space is used for depositing each viewpoint is set;
D., a plurality of windows are set intercept each bore hole 3D display image to be shown, obtain respectively pending view data according to the position relationship of bore hole 3D display;
E. according to raster pattern bore hole 3D display characteristic the input picture of each bore hole 3D display is carried out the RGB permutatation according to the grating array format, so that many viewpoints 3D rendering is synthetic consistent with the grating arrangement;
F. the composite signal of each bore hole 3D display being exported simultaneously to corresponding bore hole 3D display shows.
For step a, the relevant information of described 3D video comprises: the viewpoint number of 3D video, resolution, connecting method etc.; In step, also need obtain simultaneously the information such as resolution of each bore hole 3D display; Described bore hole 3D video wall often is spliced by M * N bore hole 3D display, and wherein M, N are the positive integer greater than 1; In order to guarantee bore hole 3D video in the normal play of bore hole 3D video wall, the viewpoint number of bore hole 3D video wall should be consistent with the viewpoint number of bore hole 3D video.
For step b, because that is that all right is ripe for present many viewpoints 3D video coding and decoding technology, existing many viewpoints 3D video adopts the 2D mode to splice compression usually, therefore, described here refers to bore hole 3D decoding video signal to be played: to by calling video decoding chip the 3D vision signal that is obtained by the compression of 2D Image Mosaics being carried out the 2D decoding, when carrying out the 2D decoding, also turn the conversion that the RGB modular converter carries out color space by calling YUV, thereby obtain decoded RGB data.
For step c, for convenient follow-up link obtaining each visual point image data, need bore hole 3D decoded picture is cut apart, and the decoding RGB image of each viewpoint is stored respectively in the setting image buffer storage space corresponding with many viewpoints 3D video viewpoint number, and to record each visual point image resolution be w * h, wherein w is the resolution of horizontal direction, and h is the resolution on the vertical direction; In order to reduce computation complexity, need not carry out zoom operations to each visual point image in this link.
For steps d, the same with the 2D Video Wall Display System, each bore hole 3D display and need not show whole composograph only with the parts of images that shows behind many View Synthesis in the bore hole 3D Video Wall Display System.Take 2x2 bore hole 3D video wall as example, the bore hole 3D display of top left region shows the picture in upper left zone in the synthetic bore hole 3D rendering, the bore hole 3D display of right regions shows the picture in upper right zone in the synthetic bore hole 3D rendering, and lower-left and lower right area are to push away in this.In order to reduce the operand of data, by being set, a plurality of windows (window number is consistent with the display number) obtain each bore hole 3D display image to be shown, and the resolution of each image that wherein obtains is w ' * h '; Take 2x2 bore hole 3D video wall as example, need the image of the top left region of each View Synthesis image of buffering area among the obtaining step c for the bore hole 3D display of top left region, at this moment equally
Also obtain respectively the multi-view image of corresponding region for other regional bore hole 3D displays.
For step e, obtain many viewpoints 3D rendering synthesis mode according to raster pattern bore hole 3D display characteristic, because the design of different gratings is different, the synthesis mode of many viewpoints 3D rendering is also different; As a rule, establishing the grating cycle is p, and the grating slope degree is θ, and 2D display screen sub pixel width is W
p, the viewpoint number that adopts is K, these four parameters should satisfy following relation:
①
Wherein,
For on round symbol.
According to the multi-view image RGB array format of answering with grating pair, by by the synthetic mode of pixel multi-view image being synthesized;
It should be noted that when multi-view image synthesizes, the resolution of each viewpoint does not need to guarantee consistent with synthetic rear image resolution ratio, can be any effective value.The resolution of supposing each bore hole 3D television indicator in the bore hole 3D video wall is W * H, wherein W is the resolution of horizontal direction, and H is the resolution of vertical direction, and the resolution of each viewpoint is w ' * h ' in the steps d, composograph pixel P[i, j] value of position is V
[i, j], wherein i is the horizontal coordinate of composograph pixel P, j is the vertical coordinate of composograph pixel P.The value of corresponding visual point image [i, the j] position of 1. trying to achieve according to formula is C
[i, j], then satisfy following relation:
Wherein, not during from certain single viewpoint for the value of composograph RGB, the weighting that needs to consider adjacent viewpoint is processed;
By the processing of step e, can obtain the composite signal for each bore hole 3D display.
For step f, the composite signal of each bore hole 3D display among the step e is connected by output interfaces such as HDMI or DVI with corresponding bore hole 3D display and shows, can realize the broadcast of bore hole 3D video wall.
The claimed scheme of the present invention comprises but is not limited only to above-described embodiment, and all replacement/modifications that is equal to of having done according to above description under Spirit Essence of the present invention all are in protection scope of the present invention.
Claims (8)
1. bore hole 3D video wall video broadcasting method is characterized in that, may further comprise the steps:
A. obtain the connecting method of bore hole 3D video wall, the display resolution of each bore hole 3D display and the relevant information of bore hole 3D video to be played;
B. carry out the conversion to RGB by YUV to bore hole 3D decoding video signal to be played, and to the image of decoding;
C. to the image of decoding according to cutting apart, and the setting image buffer storage space identical with the viewpoint number of bore hole 3D video to be played is for the decoded picture of depositing each viewpoint;
D. the position relationship according to bore hole 3D display obtains respectively the pending view data of each bore hole 3D display;
E. according to the grating array format the pending image of each bore hole 3D display is carried out pixel and synthesize, obtain the composite signal for each bore hole 3D display;
F. will input to simultaneously for the composite signal of each bore hole 3D display corresponding bore hole 3D display shows.
2. bore hole 3D video wall video broadcasting method as claimed in claim 1 is characterized in that, among the step a, the relevant information of described bore hole 3D video to be played comprises: viewpoint number, resolution and the connecting method of 3D video.
3. bore hole 3D video wall video broadcasting method as claimed in claim 1, it is characterized in that, among the step b, described bore hole 3D decoding video signal to be played is referred to: to by calling video decoding chip the 3D vision signal that is obtained by the compression of 2D Image Mosaics being carried out the 2D decoding.
4. bore hole 3D video wall video broadcasting method as claimed in claim 1, it is characterized in that, among the step b, described to the decoding image carry out being referred to the conversion of RGB by YUV: by call YUV turn the RGB modular converter to the decoding image carry out the conversion of color space, the rgb image data after obtaining changing.
5. such as the described bore hole 3D video wall of claim 1-4 any one video broadcasting method, it is characterized in that, among the step c, the image of decoding is cut apart the decoded picture of a viewpoint of each image buffer storage space storage according to the viewpoint number of bore hole 3D video to be played; Comprise also in this step that the image resolution ratio that records each viewpoint is w * h, wherein w is the resolution of horizontal direction, and h is the resolution on the vertical direction.
6. bore hole 3D video wall video broadcasting method as claimed in claim 5, it is characterized in that, in the steps d, intercept the pending image of each display by the window identical with display number in the bore hole 3D video wall is set, then obtain respectively the pending view data of each display according to the position relationship of display in bore hole 3D video wall.
7. bore hole 3D video wall video broadcasting method as claimed in claim 6, it is characterized in that, when described bore hole 3D video wall is when being spliced with 2 * 2 bore hole 3D displays, then is in the pending view data of the display of video wall top left region and is the view data of the top left region of the general image of each visual point image after synthetic; Be in the pending view data of the display of video wall right regions and be the view data of the right regions of the general image of each visual point image after synthetic; Be in the pending view data of the display in zone, video wall lower-left and be the view data in the zone, lower-left of the whole image of each visual point image after synthetic; Be in the pending view data of the display of video wall lower right area and be the view data of the lower right area of the whole image of each visual point image after synthetic; The resolution of the view data that each display is pending is w ' * h ', wherein
8. bore hole 3D video wall video broadcasting method as claimed in claim 7, it is characterized in that, among the step e, describedly the pending image of each bore hole 3D display is carried out that pixel is synthetic to be referred to according to the grating array format: obtain many viewpoints 3D rendering synthesis mode according to raster pattern bore hole 3D display characteristic, described raster pattern bore hole 3D indicating characteristic is: establishing the grating cycle is p, the grating slope degree is θ, and the display screen sub pixel width is W
p, the viewpoint number that adopts is K, these four parameters should satisfy following relation:
①
Wherein,
For on round symbol;
Array format according to the multi-view image RGB that answers with grating pair according to pixels synthesizes the pending image of each bore hole 3D display.
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| CN104243251A (en) * | 2014-09-04 | 2014-12-24 | 宁波Gqy视讯股份有限公司 | Signal interaction method for spliced display screen and wearable device |
| CN104270626A (en) * | 2014-10-29 | 2015-01-07 | 宁波维真显示科技有限公司 | Glasses-free 3D joint wall jointing method |
| CN105007477A (en) * | 2015-07-06 | 2015-10-28 | 四川长虹电器股份有限公司 | Method for realizing naked eye 3D display based on Unity3D engine |
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| CN112087620A (en) * | 2019-06-12 | 2020-12-15 | 上海麦界信息技术有限公司 | Splicing generation method for multiple display devices for displaying stereoscopic light field |
| CN112087620B (en) * | 2019-06-12 | 2022-08-16 | 上海麦界信息技术有限公司 | Splicing generation method for multiple display devices for displaying stereoscopic light field |
| CN115442580A (en) * | 2022-08-17 | 2022-12-06 | 深圳市纳晶云实业有限公司 | Naked eye 3D picture effect processing method for portable intelligent device |
| CN115442580B (en) * | 2022-08-17 | 2024-03-26 | 深圳市纳晶云实业有限公司 | Naked eye 3D picture effect processing method for portable intelligent equipment |
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