| 基于动态分组的三维小波变换方法 |
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| 引用本文： | 尚玲,陈峰,徐文立.基于动态分组的三维小波变换方法[J].计算机应用,2005,25(5):1119-1121. |
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| 作者姓名： | 尚玲 陈峰 徐文立 |
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| 作者单位： | 清华大学,自动化系,北京,100084;清华大学,自动化系,北京,100084;清华大学,自动化系,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目(60432030) |
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| 摘 要： | 为了实现高质量的视频压缩,文中提出了基于动态分组(DynamicGroupofFrame based)的三维小波变换方法(3D V Forward)。与以往的三维小波变换方法相比较,该方法能显著减少视频压缩解压缩过程的时间延迟,能避免基于固定帧分组的(GroupofFrame based)三维小波变换方法(3D GOF)对视频质量的不利影响,仿真结果表明了该方法的有效性。
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| 关 键 词： | 视频压缩 三维小波变换 动态分组 |
| 文章编号： | 1001-9081(2005)05-1119-03 |
Three dimensional wavelet transform based on dynamic group of frame |
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| SHANG Ling,CHEN Feng,XU Wen-li.Three dimensional wavelet transform based on dynamic group of frame[J].journal of Computer Applications,2005,25(5):1119-1121. |
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| Authors: | SHANG Ling CHEN Feng XU Wen-li |
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| Affiliation: | Department of Automation, Tsinghua University, Beijing 100084,China |
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| Abstract: | To achieve high-quality video compression, three dimensional wavelet transform algorithm(3D-V-Forward)based on dynamic group of frame(DGOF-based)was presented. Compared with past three dimensional wavelet transform algorithm, the 3D-V-Forward algorithm can remarkably reduce the delay time in the video compression and decompression. The algorithm can also avoid the bad effect on video quality produced by three dimensional wavelet transform algorithm based on group of frame(3D-GOF). Experiment results show the algorithm is very efficient. |
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| Keywords: | video compression three dimensional wavelet transform dynamic group of frame |
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