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作者机构:Seoul Natl Univ Sch Elect Engn Kwanak Gu Seoul 151742 South Korea
出 版 物:《ELECTRONICS LETTERS》 (Electron. Lett.)
年 卷 期:1998年第34卷第12期
页 面:1192-1193页
核心收录:
学科分类:0808[工学-电气工程] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学]
主 题:multiply operations data compression vector quantisation search regions multiple anchors incremental-search fast vector quantiser image coding triangular inequalities encoding quality computational complexity greedy algorithm
摘 要:A new fast vector quantiser (VQ) is proposed which reduces computational complexity by searching the intersection of starch regions defined by triangular inequalities for multiple anchors. A greedy algorithm which selects an anchor set is also proposed. The proposed VQ reduces the number of multiply operations by 24.4% compared to Li s VQ [4] while preserving the same encoding quality as the full-search VQ.