本文通过研究动态Sprite编码方法和全局运动估计的迭代原理
提出了一种改进的全局运动估计算法
算法在视频对象作各种形式的运动时
该算法首先对前景对象和背景对象进行分割
全局运动估计 Chai Wanjun * （ School of Information Engineering, Wuhan University of Technology
） Abstract： Sprite (background video) is one of the important concepts in MPEG-4 which is composed of information belonging to objects visible throughout the video sequence
After research the theory of online sprite codec and global motion estimation, a kind of improved global motion estimation algorithm is proposed
The new presented algorithm first remove the foreground object after segmenting the foreground object and background object, and then accurately choose pixels which will do iterative computation in next step
The algorithm is proved efficient when the video object does all forms of motion
Keywords： MPEG-4;Sprite;global motion estimation 下载PDF阅读器 PDF全文下载： 初稿 （ 97 ） 作者简介： 通信联系人： 【收录情况】 中国科技论文在线： 柴婉君
动态Sprite编码研究[EB/OL]
