DocumentCode
1411568
Title
Modified VQ-BTC algorithm for image compression
Author
Wang, Chou-Chen ; Chen, Chin-Hsing ; Chen, I-Hong
Author_Institution
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Volume
34
Issue
14
fYear
1998
fDate
7/9/1998 12:00:00 AM
Firstpage
1390
Lastpage
1392
Abstract
VQ-BTC is a recent technique used in the coding of image data to combat edge degradation produced by vector quantisation (VQ) or block truncation coding (BTC). However, it has high encoding complexity and needs a large amount of memory to store 31 codebooks at both the encoder and decoder. A modified VQ-BTC (MVQ-BTC) algorithm is presented which achieves a performance close to that of VQ-BTC, but needs only three codebooks, and requires less computation time than VQ-BTC
Keywords
block codes; image coding; vector quantisation; block truncation coding; computation time reduction; encoding complexity; image compression; image data coding; modified VQ-BTC algorithm; vector quantisation;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19980767
Filename
706088
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