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Method for encoding multi-view depth video

A technology of depth video and coding method, which is applied in the coding field of multi-view depth video, can solve the problem of high computational complexity, achieve the effect of reducing the search range, reducing the computational complexity, and improving the coding speed

Inactive Publication Date: 2010-06-09
NINGBO UNIV
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Problems solved by technology

In the JMVM encoding process, all macroblock coding modes are searched to obtain the optimal macroblock coding mode. This method can obtain high reconstructed image quality, but the method of full search of macroblock coding modes leads to computational complexity. very high

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  • Method for encoding multi-view depth video

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Embodiment Construction

[0034] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

[0035] A coding method for multi-view depth video, the coding method adopts JVT (Joint Video Team, Joint Video Expert Group) on the multi-view video coding verification model JMVM (Joint Multi-view Video Model) based on the H.264 coding standard. ) recommended Hierarchical B-frame (HBP, Hierarchical B Pictures) coding prediction structure to encode multi-view depth video, the hierarchical B-frame coding prediction structure is as follows figure 2 shown.

[0036] In the encoding process, for all I frames in the multi-view depth video, each 16×16 macroblock is processed sequentially from left to right and top to bottom in units of 16×16 macroblocks. For each 16×16 macroblock , the encoder searches for Intra16×16, Intra8×8 and Intra4×4 modes, and finds the macroblock coding mode with the smallest rate-distortion cost from these three macrobloc...

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Abstract

The invention discloses a method for encoding multi-view depth video, wherein a B frame image is divided into a depth continuous area and a depth discontinuous area according to deviation factors by computing each macro block of all B frames in a multi-view depth video. For each macro block in the depth continuous area, an encoder traverses fewer macro block encoding modes by, so that the search range of the macro block encoding modes of each macro block in the depth continuous area in the multi-view depth video is reduced greatly, which reduces the computational complexity of multi-view depth video encoding, and effectively improves the encoding speed of the multi-view depth video encoding; for each macro block in the depth discontinuous area which has great influence on drawing a virtual view image, the encoder traverses all macro block encoding modes so that each macro block is protected by adopting the method for searching all macro block encoding modes. Therefore, the method of the invention improves the encoding speed and ensures the quality of drawing the virtual view image at the same time.

Description

technical field [0001] The present invention relates to a video signal processing method, in particular to a multi-view depth video encoding method. Background technique [0002] With the rapid development of information collection technology, communication technology, and information processing technology, it has gradually become a reality that people can use the free-viewpoint video system to freely choose a viewpoint to enjoy scenes. Freeview video system has broad application prospects in the fields of film and television entertainment, education, product display, medical treatment and security monitoring. Free viewpoint video is captured by a multi-camera system, each viewpoint independently accepts video from a specific camera point in the same scene, and generates any viewpoint video through virtual viewpoint image rendering technology, so that people can enjoy viewpoint images at any position. [0003] Virtual viewpoint image rendering is one of the key technologies...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/597
CPCH04N19/00278H04N19/00157H04N7/26037H04N7/26063H04N7/26244H04N19/00072H04N7/26127H04N19/00769H04N19/00036H04N19/14H04N19/109H04N19/119H04N19/176H04N19/597
Inventor 彭宗举蒋刚毅郁梅
Owner NINGBO UNIV
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