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。
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.
基金
国家863计划863-317课题资助
西安电子科技大学基金
综合业务网理论资助
关键技术国家重点实验室部分资助
关键词
图象编码
矢量量化
格
Image coding
Vector quantization
Lattice
