DocumentCode
1191858
Title
Signal-adapted multiresolution transform for image coding
Author
Desarte, P. ; Macq, B. ; Slock, D.T.M.
Author_Institution
Univ. Catholique de Louvain, Belgium
Volume
38
Issue
2
fYear
1992
fDate
3/1/1992 12:00:00 AM
Firstpage
897
Lastpage
904
Abstract
The authors consider the problem of designing multiresolution transforms that are adapted to the given image signal, in the sense that they maximize the coding gain at each resolution level. A simple alternating optimization algorithm is derived for solving this problem in the framework of the lattice realization of para-unitary quadrature mirror filters. The resulting large coding scheme is discussed in some detail, and its performance is compared with that of the discrete cosine transform (JPEG) technique and with that of some nonadapted multiresolution transforms.<>
Keywords
data compression; encoding; filtering and prediction theory; picture processing; transforms; alternating optimization algorithm; image coding; lattice realization; multiresolution transform; para-unitary quadrature mirror filters; signal adapted transform; wavelet transforms; Discrete cosine transforms; Discrete transforms; Discrete wavelet transforms; Filters; Frequency; Image coding; Image resolution; Lattices; Signal resolution; Spatial resolution;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/18.119749
Filename
119749
Link To Document