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基于曲率尺度空间的VOP形状的分层表示

A Multiscale Representation of VOP Shapes Based on Curvature Scale Space
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摘要 采用一种新的基于曲率尺度空间 (CSS)的算法进行形状的分层操作 .实验结果表明 ,这种方法比 MPEG4校验模型中用下抽样的方法进行形状编码的分层操作 ,分层性更强 ,且压缩比更高 . This paper present a new multiscale representation of shapes based on curvature scale space(css). Simulation results show that the proposed algorithm has higher compression ratio, more robust multilevel representation and better subjective quality compared with other results using down sampling in MPEG4 given in the literature.
出处 《上海大学学报(自然科学版)》 CAS CSCD 2001年第3期195-199,共5页 Journal of Shanghai University:Natural Science Edition
基金 上海市教委重点学科资助项目 ( s990 12 3 ) 上海市自然科学基金 ( 992 D14 0 3 5)资助项目
关键词 MPEG4 VOP形状表达 多尺度空间 曲率尺度空间 形状编码 分层操作 压缩比 视频对象 MPEG4 shape representation of VOP multiscale space feature point corner
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参考文献7

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