运动补偿提升小波及其在视频编码中的应用

IEEE International Conference on Multimedia and Expo, 2001. ICME 2001. Pub Date : 2001-08-22 DOI:10.1109/ICME.2001.1237732

Lin Luo, Jin Li, Shipeng Li, Zhenquan Zhuang, Ya-Qin Zhang

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引用次数: 114

摘要

提出了一种用于三维小波视频编码器的运动补偿提升(MCLIFT)框架。通过在时间方向的每个提升步骤中使用双向运动补偿，有效地实现了视频帧的去相关。采用适当的熵编码和码流封装方案，MCLIFT小波视频编码器可以在帧率和质量水平上实现可扩展性。实验结果表明，MCLIFT视频编码器比相同熵编码方案下的3D小波视频编码器平均高1.1 ~ 1.6 db，比MPEG-4编码器平均高0.9 ~ 1.4 db。

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Motion compensated lifting wavelet and its application in video coding

A motion compensated lifting (MCLIFT) framework is proposed for the 3D wavelet video coder. By using bi-directional motion compensation in each lifting step of the temporal direction, the video frames are effectively de-correlated. With proper entropy coding and bitstream packaging schemes, the MCLIFT wavelet video coder can be scalable in frame rate and quality level. Experimental results show that the MCLIFT video coder outperforms the 3D wavelet video coder with the same entropy coding scheme by an average of 1.1-1.6dB, and outperforms MPEG-4 coder by an average of 0.9-1.4dB.

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IEEE International Conference on Multimedia and Expo, 2001. ICME 2001.

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