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Three-dimensional video asymmetrical coding method

A technology of stereoscopic video and coding method, applied in the field of asymmetrical coding of stereoscopic video, can solve the problems of increasing coding complexity and the like

Inactive Publication Date: 2011-10-05
NINGBO UNIV
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Problems solved by technology

However, with this asymmetric coding method, in order to perform inter-view prediction at the coding end, the down-sampled right-view video needs to be re-upsampled. Therefore, the coding complexity will increase, and the code stream saving is limited to a certain Within the range, the asymmetric coding method still cannot be well applied to mobile 3DTV

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Embodiment Construction

[0080] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0081] The basic flowchart of the stereoscopic video asymmetric encoding method of the present invention is as follows: figure 1 As shown, it specifically includes the following steps:

[0082] ① Define the unprocessed stereoscopic video captured by external stereoscopic video capture tool and the color space is YUV as the original stereoscopic video. It is mainly composed of left-viewpoint images of several frame groups, and the original right-viewpoint video is mainly composed of right-viewpoint images of several frame groups. Among them, the first component of the three components of the YUV color space is the brightness component and is recorded as Y, The second component is the first chrominance component and is denoted as U and the third component is the second chrominance component and is denoted as V.

[0083] Here, the multi-view vi...

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Abstract

The invention discloses a three-dimensional video asymmetrical coding method, which comprises the following steps of: with a subjective experiment, measuring a minimum differentiable variation value of a left-viewpoint image in a test image when human eyes can sense a three-dimensional visual variation; acquiring optimal coded quantization to code luminance components of a right-viewpoint image according to a basic coded quantization parameter and the minimum differentiable variation value of the left-viewpoint image; and reconstructing and acquiring chromaticity components of the right-viewpoint image with chromaticity reconstruction operation by utilizing the video data of a left viewpoint, the video data of a right viewpoint and disparity field information obtained by decoding at a user end. The method of the invention has the advantages of greatly improving three-dimensional video coding efficiency and reducing coding complexity on the premise of ensuring the overall quality of a three-dimensional image.

Description

technical field [0001] The invention relates to a method for encoding and compressing video signals, in particular to an asymmetrical encoding method for stereoscopic video. Background technique [0002] Compared with two-dimensional (2D, Two Dimensional) video display, stereoscopic / three-dimensional (3D, Three Dimensional) video display matches people's vision better, and it makes people have a sense of three-dimensionality and immersion when watching images on the screen. In recent years, governments and enterprises in the United States, Europe, Japan, and South Korea have invested heavily in the research and development of three-dimensional television / three-dimensional television (3DTV, ThreeDimensional Television), including the National Natural Science Foundation of the United States, the U.S. Department of Naval Research and Energy, the U.S. Advanced Visual Technology Center, the 3DTV program of the EU's sixth framework agreement, the EU ATTEST program, the European In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N11/04H04N13/00
Inventor 邵枫郁梅蒋刚毅
Owner NINGBO UNIV
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