发明申请
US20070200737A1 Entropy Coding Method For Coding Video Prediction Residual Coefficients 有权
用于编码视频预测残差系数的熵编码方法

  • 专利标题: Entropy Coding Method For Coding Video Prediction Residual Coefficients
  • 专利标题(中): 用于编码视频预测残差系数的熵编码方法
  • 申请号: US10572440
    申请日: 2004-07-05
  • 公开(公告)号: US20070200737A1
    公开(公告)日: 2007-08-30
  • 发明人: Wen GaoDebin ZhaoQiang WangSiwei MaYan Lu
  • 申请人: Wen GaoDebin ZhaoQiang WangSiwei MaYan Lu
  • 优先权: CN03157189.1 20030918
  • 国际申请: PCT/CN04/00750 WO 20040705
  • 主分类号: H03M7/00
  • IPC分类号: H03M7/00
Entropy Coding Method For Coding Video Prediction Residual Coefficients
摘要:
The present invention provides an entropy coding method for coding video prediction residual coefficients, comprising the steps of: firstly, zig-zag scanning coefficients of blocks to be coded to form a sequence of (level, run) pairs; secondly, selecting a type of code table for coding a current image block to be coded according to a type of macro block; then switching and coding each (level, run) pair in the obtained sequence of (level, run) pairs with multiple tables, with the reverse zig-zag scanning order for the coding order of the pairs; at last, coding a flag of End of Block EOB with the current code table. The present invention of an entropy coding method for coding video prediction residual coefficients fully considers the context information and the rules of symbol's conditional probability distribution by designing different tables for different block types and different regions of level. The coding efficiency is improved and no impact to computational implementation complexity is involved.
信息查询
0/0