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基于可变尺寸重叠块运动补偿的小波视频编码器

Variable-Size Overlapped Block Motion Compensation Based on Wavelet Codec
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摘要 通过排序算法和四叉树编码的改进以及快速运动矢量搜索算法的应用实现了优化的可变尺寸运动估计局部生长算法,将SP IHT小波图像编码器和可变尺寸重叠块运动补偿算法相结合,设计了一种混合小波视频编码器.仿真试验表明这是一种有效的视频编码方法,对于具有复杂运动的视频序列的编码较为有效. A fast sorting method, a quad-tree coding scheme and fast motion vectors searching techniques are adopted to implement optimized limited growing algorithm. The results of the simulation justify the performance of the fast algorithm. A hybrid wavelet video codec is designed by combination of SPIHT image codec and variable size overlapped block motion compensation. The wavelet video codec is effective especially when complex motions presented in video sequence by the proof of simula tion experiment results.
作者 王赜
机构地区 天津工业大学计算机技术与自动化学院
出处 《小型微型计算机系统》 CSCD 北大核心 2005年第12期2186-2189,共4页 Journal of Chinese Computer Systems
基金 国家自然科学基金项目(69973011)资助.
关键词 变尺寸运动估计 重叠块运动补偿 小波变换 视频压缩 VSBM OBMC wavelet transformation video compression
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献7

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二级参考文献8

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小型微型计算机系统
2005年 第12期

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