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一种AVS-M整数像素运动估计快速算法 被引量:4

Fast Integer Pixel Motion Estimation Algorithm for AVS-M
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摘要 根据AVS—M编码过程中运动估计的特点,在整数像素运动矢量搜索过程中,提出一种基于起点预测和早停止的自适应运动估计快速搜索算法.与MVFAST算法相比,大大减少了搜索点数,加速了搜索过程,平均速度提高了39.9%~45.7%,减少了整数像素运动估计的计算量,在保持较低的编码码率和较好的图像质量的同时,提高了编码速度. This paper poses a kind of auto-adapted motion estimation fast search algorithms based on beginning forecast and early stop in the process of integer pixel motion vector search according to the characteristic of movtion estimation in AVS-M code process. Comparing with MVFAST algorithms, this algorithms reduces greatly search points, accelerates search process, enhances average velocity to 39.9% -45.7% and reduces the computation load of integer pixel motion estimation. It maintains low code rate and high picture quality at the same time of raising the code speed.
出处 《小型微型计算机系统》 CSCD 北大核心 2011年第4期793-796,共4页 Journal of Chinese Computer Systems
基金 湖南省科技厅科技发展计划项目(2009FJ4062)资助 湖南省教育厅高等学校科学研究项目(08C364)资助
关键词 AVS—M 视频编码 整数像素运动估计 起点预测 自适应 AVS-M video coding integer pixel motion estimation beginning forecast adaptive
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共引文献40

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