CN102932660A - Composition and decomposition method for 3D videos - Google Patents
Composition and decomposition method for 3D videos Download PDFInfo
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- CN102932660A CN102932660A CN201210477068XA CN201210477068A CN102932660A CN 102932660 A CN102932660 A CN 102932660A CN 201210477068X A CN201210477068X A CN 201210477068XA CN 201210477068 A CN201210477068 A CN 201210477068A CN 102932660 A CN102932660 A CN 102932660A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000005267 amalgamation Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention discloses a composition and decomposition method for 3D videos, comprising the following steps of: when the videos are composed, acquiring two paths of high-definition signals of a left view and a right view by using two high-definition vidicons for shooting, abandoning every line of pixels of the left view and the right view in the two paths of high-definition signals in a vertical direction, and then joining the left view and the right view to obtain a composed image, wherein the pixels are abandoned in an odd-number and even-number line staggered mode in the step of abandoning the pixels; and when the image is decomposed, rebuilding the left view and the right view by utilizing the time domain coherence of image signals at the same side according to a frame. By adopting the composition and decomposition method for the 3D videos, provided by the invention, a composition and decomposition method for 3D videos, which is capable of supporting a binary syllabification-mode 3DTV or 3D projector to project 3D images, is achieved; the composition and decomposition method for the 3D videos has the characteristic that a better visual effect can be obtained without upgrading or adding additional hardware.
Description
Technical field
The present invention relates to a kind of composition and decomposition method of video, espespecially a kind of composition and decomposition method of 3D video.
Background technology
The composition and decomposition method of existing video generally adopts symmetrical Two bors d's oeuveres (side-by-side) scheme.At video acquisition and synthetic end, by the two-way high-definition signal of two high-definition cameras shootings, after entering synthetic end, first by buffering, so that synchronous.Two-way reduces the resolution of half separately, and concrete grammar is: the vertical direction at left and right sides view abandons pixel every row, and namely row keep, and adjacent row abandon, and adjacent row keep again.The odd even order that abandons and keep is random.But the vision signal resolution in the horizontal direction that must guarantee left road reduces by half, and the resolution on the vertical direction remains unchanged, and is in left one side of something of composograph.The right wing vision signal roughly the same is in right one side of something of composograph.The final synthetic picture of Two bors d's oeuveres (side-by-side) that forms.
Decomposing and display end, finishing the decomposition of two-way composite signal and rebuild.At first from the side-by-side image, extract respectively the image after the horizontal direction compression of left and right sides view.Concerning a left side was looked, on final the same with the original video resolution large picture of rebuilding, the pixel column of reservation was filled into corresponding position, namely the image after the horizontal direction compression was filled on original position every row " elongation ".And the row pixel of disappearance is used as the interpolation filling by the contiguous pixel of the right and left is averaged, thereby reconstructs the image that a left side is looked.The way that the right side is looked is looked identical with a left side.As long as synthetic end and decompose the unified odd even order that abandons and keep of end, just correct reconstructed image.
But the method can not be so that support 3DTV or the 3D projecting apparatus projection 3D image of side-by-side pattern, and need upgrading or add extra hardware.
Summary of the invention
The object of the invention is to overcome the defective of prior art, and a kind of composition and decomposition method of 3D video is provided, realized the composition and decomposition method of the 3D video of a kind of 3DTV that can support the Two bors d's oeuveres pattern or 3D projecting apparatus projection 3D image; Have and need not to upgrade or add extra hardware, can obtain the characteristics of better visual effect.
The technical scheme that realizes above-mentioned purpose is:
The composition and decomposition method of a kind of 3D video of the present invention, during synthetic video, take the two-way high-definition signal that obtains left and right sides views by two high-definition cameras, abandon the left right view of described two-way high-definition signal vertical direction every the row pixel, obtain composograph behind the view of the described left and right sides of amalgamation; Abandon in the pixel step described, adopt the staggered mode of single biserial to abandon pixel;
When decomposing described composograph, utilize the relativity of time domain of homonymy picture signal to rebuild frame by frame left and right sides image.
In the image process of the above-mentioned reconstruction left and right sides, determine the insertion pixel of present frame current location according to the pixel value difference of front and back frame current location.
Insertion pixel step in above-mentioned definite present frame current location comprises step:
A default threshold value;
Described pixel value difference and described threshold value are made comparisons;
If described pixel value difference is less than or equal to described threshold value, the pixel value of front and back frame current location is averaging rear pixel reconstructed value as the present frame current location;
If described pixel value difference, searches corresponding pixel greater than described threshold value in the picture signal of opposite side, distribute rear pixel reconstructed value as the present frame current location by weights.
The present invention has been owing to having adopted above technical scheme, makes it have following beneficial effect to be:
Utilize the relativity of time domain of homonymy picture signal to rebuild frame by frame left and right sides image, thereby so that the image after rebuilding has better visual effect; Have and need not to upgrade or add extra hardware, can obtain the characteristics of better visual effect.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
The composition and decomposition method of a kind of 3D video of the present invention, during synthetic video, take the two-way high-definition signal that obtains left and right sides views by two high-definition cameras, abandon the left right view of two-way high-definition signal vertical direction every the row pixel, obtain composograph behind the view of the amalgamation left and right sides; In abandoning pixel step, adopt the staggered mode of single biserial to abandon pixel;
When decomposing composograph, utilize the relativity of time domain of homonymy picture signal to rebuild frame by frame left and right sides image; Determine the insertion pixel of present frame current location according to the pixel value difference of front and back frame current location.
Wherein, the insertion pixel step of determining the present frame current location comprises step:
A default threshold value;
Pixel value difference and threshold value are made comparisons;
If pixel value difference is less than or equal to threshold value, the pixel value of front and back frame current location is averaging rear pixel reconstructed value as the present frame current location;
If pixel value difference, searches corresponding pixel greater than threshold value in the picture signal of opposite side, distribute rear pixel reconstructed value as the present frame current location by weights.
Utilize the relativity of time domain of homonymy picture signal to rebuild frame by frame left and right sides image, thereby so that the image after rebuilding has better visual effect; Realized the composition and decomposition method of the 3D video of a kind of 3DTV that can support the Two bors d's oeuveres pattern or 3D projecting apparatus projection 3D image; Have and need not to upgrade or add extra hardware, can obtain the characteristics of better visual effect.
Below in conjunction with the embodiments the present invention is had been described in detail, those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details among the embodiment should not consist of limitation of the invention, and the scope that the present invention will define with appended claims is as protection scope of the present invention.
Claims (3)
1. the composition and decomposition method of a 3D video, during synthetic video, take the two-way high-definition signal that obtains left and right sides views by two high-definition cameras, abandon the left right view of described two-way high-definition signal vertical direction every the row pixel, obtain composograph behind the view of the described left and right sides of amalgamation; It is characterized in that, abandon in the pixel step described, adopt the staggered mode of single biserial to abandon pixel;
When decomposing described composograph, utilize the relativity of time domain of homonymy picture signal to rebuild frame by frame left and right sides image.
2. the composition and decomposition method of 3D video as claimed in claim 1 is characterized in that, in the image process of the described reconstruction left and right sides, determines the insertion pixel of present frame current location according to the pixel value difference of front and back frame current location.
3. the composition and decomposition method of 3D video as claimed in claim 2 is characterized in that, comprises step in the insertion pixel step of described definite present frame current location:
A default threshold value;
Described pixel value difference and described threshold value are made comparisons;
If described pixel value difference is less than or equal to described threshold value, the pixel value of front and back frame current location is averaging rear pixel reconstructed value as the present frame current location;
If described pixel value difference, searches corresponding pixel greater than described threshold value in the picture signal of opposite side, distribute rear pixel reconstructed value as the present frame current location by weights.
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| CN201210477068XA CN102932660A (en) | 2012-11-22 | 2012-11-22 | Composition and decomposition method for 3D videos |
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| CN201210477068XA CN102932660A (en) | 2012-11-22 | 2012-11-22 | Composition and decomposition method for 3D videos |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010120804A1 (en) * | 2009-04-13 | 2010-10-21 | Reald Inc. | Encoding, decoding, and distributing enhanced resolution stereoscopic video |
| WO2012012444A2 (en) * | 2010-07-19 | 2012-01-26 | Dolby Laboratories Licensing Corporation | Enhancement methods for sampled and multiplexed image and video data |
| CN102783158A (en) * | 2010-01-03 | 2012-11-14 | 森西欧技术公司 | Method and system for detecting compressed stereoscopic frames in a digital video signal |
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- 2012-11-22 CN CN201210477068XA patent/CN102932660A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010120804A1 (en) * | 2009-04-13 | 2010-10-21 | Reald Inc. | Encoding, decoding, and distributing enhanced resolution stereoscopic video |
| CN102783158A (en) * | 2010-01-03 | 2012-11-14 | 森西欧技术公司 | Method and system for detecting compressed stereoscopic frames in a digital video signal |
| WO2012012444A2 (en) * | 2010-07-19 | 2012-01-26 | Dolby Laboratories Licensing Corporation | Enhancement methods for sampled and multiplexed image and video data |
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Application publication date: 20130213 |