Invention Grant
US07974343B2 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
- Patent Title: Entropy coding method for coding video prediction residual coefficients
- Patent Title (中): 用于编码视频预测残差系数的熵编码方法
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Application No.: US10572440Application Date: 2004-07-05
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Publication No.: US07974343B2Publication Date: 2011-07-05
- Inventor: Wen Gao , Debin Zhao , Qiang Wang , Siwei Ma , Yan Lu
- Applicant: Wen Gao , Debin Zhao , Qiang Wang , Siwei Ma , Yan Lu
- Applicant Address: CN Beijing
- Assignee: Institute of Computing Technology Chinese Academy of Science
- Current Assignee: Institute of Computing Technology Chinese Academy of Science
- Current Assignee Address: CN Beijing
- Agency: J.C. Patents
- Priority: CN03157189 20030918
- International Application: PCT/CN2004/000750 WO 20040705
- International Announcement: WO2005/027521 WO 20050324
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N13/02 ; H04N13/04

Abstract:
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.
Public/Granted literature
- US20070200737A1 Entropy Coding Method For Coding Video Prediction Residual Coefficients Public/Granted day:2007-08-30
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