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Video coding method

A video coding and video technology, applied in the field of video coding, can solve the problem of long coding time, save coding time and reduce the number of searches.

Inactive Publication Date: 2010-11-10
HISENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the AVS encoder performs a full search for all modes, performs motion estimation for each mode and calculates the rate-distortion cost, and the encoding time is too long

Method used

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Embodiment Construction

[0024] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0025] In the embodiment of the present invention, the best coding mode of the current macroblock is searched first, or the coding mode that is most likely to be the best mode is searched first, and other coding is not required if it meets the set conditions pattern search, otherwise search other encoding patterns.

[0026] All there is very big correlation in space and time in video sequence, statistics shows, current macroblock and its left, upper adjacent macroblock and the corresponding macroblock of reference frame (these three constitute the predictive model of the embodiment of the present invention) three The probability that one of them ...

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Abstract

The invention provides a video coding method, comprising the following steps: determining coding mode of each macro block in a video first frame; setting a prediction model; and analyzing the coding mode of each macro block in the prediction model; if the first condition is satisfied, determining the coding mode of the current macro block; if the first condition is not satisfied, sequentially searching other interframe coding modes and judging whether the second condition is satisfied; if the second condition is satisfied, determining the coding mode of the current macro block; and if the second condition is not satisfied and the coding mode of each macro block in the prediction model does not include an intra-frame mode, searching the intra-frame mode to determine the coding mode of the current macro block. The video coding method can improve coding efficiency.

Description

technical field [0001] The invention relates to a video coding method, in particular to a video coding method under the AVS video codec standard format. Background technique [0002] The current video formats mainly include: H.264, WMA-HD, MPEG2-TS, MPEG4, and VC-1, etc., which correspond to the codec standards of radio, television and program sources in various foreign countries, while the codec standards of Chinese video are currently the national The self-owned intellectual property launched is the AVS video codec standard. Currently, upstream and downstream promotion and industrialization work is being carried out in the field of radio and television and related products. [0003] At present, the AVS encoder performs a full search for all modes, performs motion estimation and calculates the rate-distortion cost for each mode, and the encoding time is too long. [0004] The full search is to search all six modes for the macroblock: skip, 16*16, 16*8, 8*16, 8*8, intra (t...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/32H04N19/103H04N19/176
Inventor 刘微魏建云彭玉华裴雷
Owner HISENSE
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