引用本文: | 王大鸣,黄慧群,皇甫堪.一种视频图像三维子带编码方法[J].国防科技大学学报,1999,21(2):54-57.[点击复制] |
Wang Daming,Huang Huiqun,Huangfu Kan.An Algorithm of Video Coding Based on a Three-dimensional Spatio-Temporal Subband Decomposition[J].Journal of National University of Defense Technology,1999,21(2):54-57[点击复制] |
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一种视频图像三维子带编码方法 |
王大鸣, 黄慧群, 皇甫堪 |
(国防科技大学 电子技术系 湖南 长沙 410073)
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摘要: |
介绍一种视频图像三维子带编码方法, 它采用非对称滤波器进行子带划分, 对各子带进行量化时, 低频子带采用非对称树结构矢量量化方法, 高频子带采用几何矢量量化方法。实验证明, 由此构成的比特率为112kb/s视频图像编码器获得了良好的重建图像质量。 |
关键词: 子带分解, 几何矢量量化, 非对称树结构矢量量化 |
DOI: |
投稿日期:1998-07-05 |
基金项目:校预研项目资助 |
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An Algorithm of Video Coding Based on a Three-dimensional Spatio-Temporal Subband Decomposition |
Wang Daming, Huang Huiqun, Huangfu Kan |
(Department of Electronic Techology, NUDT, Changsha, 410073)
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Abstract: |
This paper describes an algorithm of video coding based on a three-dimensional spatio-temporal subband decomposition, and results are shown for a 112kb/s coder that is based on an unbalanced tree-structured vector quantizer (UTSVQ) for the lowest frequency band and geometic vector quantizer (GVQ) for the higher frequency bands. |
Keywords: subband decompose, GVQ, UTSVQ |
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