Method and device for coding video data and method and device for decoding video data

A technology of video data and encoding method, applied in the field of video encoding and decoding processing methods and devices, can solve problems such as different

Active Publication Date: 2015-03-04
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] 4. The meaning of low in arithmetic coding and offset in arithmetic decoding is different
In the prior art, the multiplication operation is realized by looking up the table, but the table lookup operation still has a certain complexity, and the codec end needs to store the lookup table, which will bring storage overhead

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  • Method and device for coding video data and method and device for decoding video data
  • Method and device for coding video data and method and device for decoding video data
  • Method and device for coding video data and method and device for decoding video data

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Embodiment Construction

[0224] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0225] see figure 1 , an embodiment of the video data encoding method in the embodiment of the present invention includes:

[0226] 101. Receive the binary symbol of the signal source;

[0227] The data encoding means receives binary symbols of the signal source.

[0228] Specifically, the binary symbol may be signal data after binarization processing of encoding elements such as image unit mode, intra prediction mode, residual coefficient, and moti...

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Abstract

The embodiment of the invention discloses a method and device for coding video data and a method and device for decoding video data for conveniently performing data coding and decoding on video data. The method coding video data of the embodiment of the invention comprises: performing algorithm coding, the algorithm coding comprising: obtaining a binary symbol of image data; if the binary symbol is a more probable symbol (MPS), updating a first coding section corresponding to the MPS on a logarithm domain; if updated coding section less than a preset range of the algorithm coding section, performing a normalization process on the first coding section on the logarithm domain; if the binary symbol is a less probable symbol (LPS), updating a second coding section corresponding to the LPS on a primitive number domain, and performing a normalization process on the second coding section on the primitive number domain.

Description

technical field [0001] The present invention relates to communication technology, in particular to a video coding and decoding processing method and device. Background technique [0002] In video coding and decoding, in order to minimize the bandwidth required for transmitting video data, multiple video compression methods can be used to compress video data, wherein the video compression methods include: intra-frame compression and inter-frame compression. Nowadays, inter-frame compression methods based on motion estimation are mostly used. Specifically, the process of image compression and encoding by the image encoding end using the inter-frame compression method includes: the encoding end divides the image block to be encoded into several sub-image blocks of equal size, and then for each sub-image block, in the reference image Search for the image block that best matches the current sub-image block as the prediction block, then subtract the sub-image block from the corre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/61H04N19/126H04N19/13
CPCH04N19/126H04N19/13H04N19/61H03M7/3075H03M7/4012H04N19/91H04N19/103H04N19/50
Inventor 余全合郑萧桢郑建铧何芸
Owner TSINGHUA UNIV
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