| 一种视频图像三维子带编码方法 |
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| 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. |
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| 作者姓名： | 王大鸣 黄慧群 皇甫堪 |
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| 作者单位： | 国防科技大学电子技术系 |
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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。
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| 关 键 词： | 子带分解，几何矢量量化，非对称树结构矢量量化 |
| 收稿时间： | 7/5/1998 12:00:00 AM |
An Algorithm of Video Coding Based on a Three-dimensional Spatio-Temporal Subband Decomposition |
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| Wang Daming,Huang Huiqun and 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. |
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| Authors: | Wang Daming Huang Huiqun and Huangfu Kan |
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| Affiliation: | Department of Electronic Techology, NUDT, Changsha, 410073;Department of Electronic Techology, NUDT, Changsha, 410073;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. |
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| Keywords: | subband decompose GVQ UTSVQ |
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