| 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 |
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(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 |
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(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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