MODIFIED VQ-BTC ALGORITHM FOR IMAGE COMPRESSION

Authors
WANG CC CHEN CH CHEN IH
Citation
Cc. Wang et al., MODIFIED VQ-BTC ALGORITHM FOR IMAGE COMPRESSION, Electronics Letters, 34(14), 1998, pp. 1390-1392
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
34
Issue
14
Year of publication
1998
Pages
1390 - 1392
Database
ISI
SICI code
0013-5194(1998)34:14<1390:MVAFIC>2.0.ZU;2-W
Abstract
VQ-BTC is a recent technique used in the coding of image data to comba t edge degradation produced by vector quantisation (VQ) or block trunc ation coding (BTC). However, it has high encoding complexity and needs a large amount of memory to store 31 codebooks at both the encoder an d decoder. A modified VQ-BTC (MVQ-BTC) algorithm is presented which ac hieves a performance close to that of VQ-BTC, but needs only three cod ebooks, and requires less computation time than VQ-BTC.