一种高效的运动补偿三维小波视频编码方案
An Efficient Motion Compensated Three Dimension Wavelet Video Coding System
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摘要: 该文提出了一种高效的运动补偿三维小波视频编码方案。该方案采用运动补偿时域分析技术，以有效去除视频序列中存在的时间冗余。然后，基于视频序列的运动特征，自适应确定帧组结构，在提高编码效率的同时降低内存需求和运算复杂度。最后，根据小波图像系数特性，采用基于四叉树分裂的小波图像编码方法对三维时/空子带进行编码，以获得更高的压缩效率。实验结果表明，与其它运动补偿三维小波视频编码方法相比，该文提出的编码方案能够获得更好的性能。Abstract: This paper describes an efficient Motion-Compensated (MC)three dimension wavelet video coding system. In this system, MC temporal analysis is used to remove temporal redundancy. Then an adaptive group of pictures structure according to characteristics of motion can increase the coding efficiency and reduce computational complexity and memory requirement at the same time. Finally, a quadtree-based wavelet image coding method is proposed, which can adapt the property of wavelet image coefficient. The experimental results show that, the coding system is better than other motion-compensated three dimension wavelet video coding methods.
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