DocumentCode
1394574
Title
Wavelet maxima reconstruction by conjugate gradient
Author
Law, N.F. ; Liew, A.W.C.
Author_Institution
Dept. of Mech. & Autom. Eng., Chinese Univ. of Hong Kong, Shatin
Volume
33
Issue
23
fYear
1997
fDate
11/6/1997 12:00:00 AM
Firstpage
1928
Lastpage
1929
Abstract
The problem of reconstructing a signal from its wavelet transform modulus maxima representation can be formulated as minimising a quadratic term using the conjugate gradient technique. It is shown that this formulation obtains the same result as the accelerated frame algorithm which starts from the frame theory. A method to avoid super-resolution which is inherent in this problem is proposed, based on the measure of the regularity of the signal in the wavelet domain
Keywords
conjugate gradient methods; signal reconstruction; wavelet transforms; conjugate gradient technique; quadratic term minimisation; super-resolution; wavelet maxima reconstruction; wavelet transform modulus;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19971338
Filename
640441
Link To Document