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. -
Linde Y, Buzo A, Gray R M. IEEE Trans, on COM, 1980, COM-28(1): 84-95.[2]Conway J H, Sloane N J A. Sphere Packings, Lattices and Groups. New York: Springer-Verlag. 1988, 31-131.[3]Antonini M. Barlaud M.[J].Mathieu P. Image coding using lattice vector quantisation a}f wavelst coefficients, ICASSP&rsquo.2273,91:-[4]Samposn D, Ghanbari M. IEE Proc.1. 1993, 140(1): 56-66.[5]陈学青.分组编码调制研究:[硕士论文].西安:西安电子科技大学,1992.[6]Forney, Jr G D. IEEE Trans.on IT, 1988, IT-34(9): 1123-1151.[7]Forney. Jr G D. IEEE Trans. on IT, 1988, IT-34 (9): 1152-1187.[8]Eyuboglu M V, Forney J r G D. IEEE Trans. on IT, 1993, IT-39(1): 46-59.[9]Recommendation H. 261, Geneva: 1990. -
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