基于旋转Barnes-Wall格的增益-波形矢量量化器及其在序列图象编码中的应用
ROTATED BARNES-WALL LATTICE BASED VECTOR QUANTIZER AND ITS APPLICATION IN IMAGE-SEQUENCE CODING
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摘要: 本文首先提出了一种基于旋转Barnes-Wall格的格型矢量量化器(LVQ)的构造方法及快速量化算法,然后研究了以此LVQ为核心的增益-波形矢量量化器(GSLVQ)的实现方法,最后探讨了GSLVQ在序列图象编码中的应用方案,并给出了较好的实验结果。
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关键词:
- 图象编码; 矢量量化; 格
Abstract: A new method is presented to design a rotated Barnes-Wall lattice based vector quantizer (LVQ). The construction method of the LVQ and its fast quantizing algorithm are described, then the gain-shape vector quantizer (GSLVQ) with LVQ as shape VQ is discussed. Finally the GSLVQ is used in image-sequence coding and good experimental results are obtained. -
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