计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (8): 122-124.

• 数据库、信号与信息处理 • 上一篇    下一篇

一种AVS-M的帧内预测模式快速选择算法

张新安,宫彦军,陈爱武   

  1. 湖南科技学院,湖南 永州 425100
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-03-11 发布日期:2011-03-11

Fast selection algorithm of intraframe prediction mode based on AVS-M

ZHANG Xin’an,GONG Yanjun,CHEN Aiwu   

  1. Hunan University of Science and Engineering,Yongzhou,Hunan 425100,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-03-11 Published:2011-03-11

摘要: 在分析AVS-M帧内预测模式选择原理的基础上,提出了一种基于边缘方向信息和时空相关性的帧内预测模式快速选择算法。该算法的I帧编码时间可降低17%~21%,而PSNR和输出码率均无明显变化,有效地降低AVS-M帧内编码的计算复杂度。

关键词: 移动音视频编码标准(AVS-M), 视频编码, 帧内预测, 模式选择

Abstract: This paper proposes a kind of intraframe prediction mode selection fast algorithm based on edge direction information and space and time relevance on the analysis of AVS-M intraframe prediction mode selection principle.The I frame coding time of the algorithms can be reduced 17%~21%,but both PSNR and the output code rate have no obvious change,which can effectively reduce the computation complexity of AVS-M intraframe coding.

Key words: Audio Video-coding Standard workgroup of China, the Mobile part(AVS-M), video coding, intraframe prediction, mode selection