DocumentCode
1255271
Title
Blocky artefact reduction using an adaptive constrained least squares method
Author
Hyuk Choi ; Taejeong Kim
Volume
33
Issue
10
fYear
1997
fDate
5/8/1997 12:00:00 AM
Firstpage
854
Lastpage
855
Abstract
A blocky artefact reduction algorithm using the constrained least squares (CLS) approach is described. The authors use a new objective function which effectively constrains the relationship between not only the block boundary pixels but also the inner pixels. By gracefully reducing the visible discontinuities along the block boundaries, the proposed algorithm shows excellent noise reduction performance
Keywords
data compression; image coding; least squares approximations; adaptive constrained least squares method; block DCT; block boundary pixels; blocky artefact reduction; image compression; inner pixels; noise reduction performance; objective function; visible discontinuities;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970571
Filename
592599
Link To Document