Two-Stage Diversity-Based Multiple Description Image Coding

Two-Stage Diversity-Based Multiple Description Image Coding
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基于分集的两级多描述图像编码

DOI:
10.1109/lsp.2008.2005044
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发表时间:
2008-11
影响因子:
3.9
通讯作者:
Zhao, Yao
Zhao, Yao
中科院分区:
工程技术2区
文献类型:
--
作者:
Lin, Chunyu;Zhu, Ce;Zhao, Yao

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在这封信中,首先提出和分析了基于多样性的两描述图像编码方案,为此引入了两阶段的编码,以促进中央/侧扭曲权衡的调整。通过对中央解码错误进行二次采样
In this letter, a diversity-based two-description image coding scheme is firstly presented and analyzed, for which a two-stage coding is introduced to facilitate the tuning of central/side distortion tradeoff. By subsampling the central decoded errors from the first stage to constitute the second part for each description, respectively, we show that not only the central distortion but also the side distortion can be reduced with the second stage information. We further generalize the proposed scheme to 4-description coding. Experiment results demonstrate that the proposed scheme outperforms the state-of-the-art techniques in terms of both central and side coding performance.
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