A new paradigm of coding for scalable video coding with wavelet-based

Zhe Li, Sheng Fang, Xujian Li, Ke Xu
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引用次数: 1

Abstract

In this paper, we propose a new wavelet video coding based on MCTF-WZ through introducing Wyner-Ziv coding, which is a new coding structure. Low and high frequency frames in temporal domain are encoded through the distinct coding manner, where the former is encoded by the BISK algorithm after spatial analysis. But the latter is encoded by two distinct ways according to the correlation between the reference and current frames. In this way, regions which have high correlations are coded by Wyner-Ziv coding, and regions which only have short correlations are coded by BISK after discrete wavelet transform. The coding efficiency of this scheme is close to H.264 and MC-EZBC or even better.
基于小波的可扩展视频编码新范式
本文通过引入Wyner-Ziv编码这一新的编码结构,提出了一种基于MCTF-WZ的小波视频编码方法。低频帧和高频帧在时域内采用不同的编码方式进行编码,低频帧经过空间分析后采用BISK算法进行编码。而后者则根据参考帧与当前帧之间的相关性,采用两种不同的编码方式。这样,对相关性高的区域进行Wyner-Ziv编码,对相关性较短的区域进行离散小波变换后的BISK编码。该方案的编码效率接近H.264和MC-EZBC,甚至更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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