| 视频子带编码系统中运动补偿预测性能的改进 |
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| 引用本文： | 张春田,范宏寅.视频子带编码系统中运动补偿预测性能的改进[J].信号处理,1995(3). |
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| 作者姓名： | 张春田 范宏寅 |
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| 作者单位： | 天津大学 |
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| 摘 要： | 视频子带信号的正交镜像滤波和亚取样会造成运动补偿信息失配和频谱混叠，使预测误差增加并导致视频子带编码系统效率下降。本文对此现象进行了分析，提出了解决这一问题的改进方案。
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| 关 键 词： | 视频编码 子带编码 运动补偿预测 高清晰度电视 |
An Improvement of the Performance of Motion Compensated Prediction in Video Subband Coding Systems |
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| Zhang Chuntian , Fan Hongyin.An Improvement of the Performance of Motion Compensated Prediction in Video Subband Coding Systems[J].Signal Processing,1995(3). |
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| Authors: | Zhang Chuntian Fan Hongyin |
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| Institution: | Zhang Chuntian ; Fan Hongyin |
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| Abstract: | Quadrature Mirror Filtering and decimating in video subband signals result an unmatched motion compensation and spectrum aliasing . These lead to an increase of motion compensated prediction errors and a de crease of effectiveness of video subband coding systems . An analysis of this phenomenon is made in this paper . An improved coding scheme is introduced to resolve this problem . |
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| Keywords: | video coding subband coding motion compensated prediction HDTV |
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