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標題: Smooth side-match and smooth overlap-match vector quantizers for image coding
作者: Yang, S.B.
Tseng, L.Y.
關鍵字: smooth side-match vector quantizer;smooth overlap-match vector;quantizer;image coding;quantization;algorithm
Project: Optical Engineering
期刊/報告no:: Optical Engineering, Volume 39, Issue 7, Page(s) 1869-1876.
The side-match Vector quantizer (SMVQ) is a well known method for image coding. We propose the smooth side-match vector quantizer (SSMVQ). The SSMVQ improves coding quality by making smoother the transition of the gray levels of the adjacent blocks. Moreover, the smooth overlap-match vector quantizer (SOMVQ) is proposed to improve the performance of the overlap-match vector quantizer (OMVQ). Experimental results reveal that SSMVQ and SOMVQ have the higher peak SNR (PSNR) values, better visual perception quality, and lower bit rate than SMVQ and overlap-match vector quantizer (OMVQ), respectively. (C) 2000 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(00)03407-3].
ISSN: 0091-3286
DOI: 10.1117/1.602571
Appears in Collections:資訊網路與多媒體研究所

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