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Statements

Subject Item
n2:RIV%2F61989100%3A27230%2F03%3A00007828%21RIV%2F2004%2FMSM%2F272304%2FN
rdf:type
skos:Concept n21:Vysledek
dcterms:description
This contribution describes a method for ideal denoising. This method is based on a choice of an optimal basis from a library of wavelet orthogonal bases. This is the process of minimizing of the cost function of entropy in contribution with shrinkage method. In particular, the chosen shrinkage methods are the estimation of standard deviation ? and of Donoho-Johnstone sure threshold ? for the wavelet coefficients. The entropy is defined by the discrete distribution of squared wavelet coefficients. The Donoho threshold belongs to the simplest non-linear wavelet shrinkage, concretely to the soft thresholding. The results of this ideal denoising are presented on several examples. The algorithm selecting an optimal basis from a library of wavelet bases for ideal denoising was created with using MATLAB and The Wavelet Toolbox. This contribution describes a method for ideal denoising. This method is based on a choice of an optimal basis from a library of wavelet orthogonal bases. This is the process of minimizing of the cost function of entropy in contribution with shrinkage method. In particular, the chosen shrinkage methods are the estimation of standard deviation ? and of Donoho-Johnstone sure threshold ? for the wavelet coefficients. The entropy is defined by the discrete distribution of squared wavelet coefficients. The Donoho threshold belongs to the simplest non-linear wavelet shrinkage, concretely to the soft thresholding. The results of this ideal denoising are presented on several examples. The algorithm selecting an optimal basis from a library of wavelet bases for ideal denoising was created with using MATLAB and The Wavelet Toolbox.
dcterms:title
Ideal Choice of an Orthogonal Basis from a Library of Bases for Denoising Ideal Choice of an Orthogonal Basis from a Library of Bases for Denoising
skos:prefLabel
Ideal Choice of an Orthogonal Basis from a Library of Bases for Denoising Ideal Choice of an Orthogonal Basis from a Library of Bases for Denoising
skos:notation
RIV/61989100:27230/03:00007828!RIV/2004/MSM/272304/N
n3:strany
181-188
n3:aktivita
n13:Z
n3:aktivity
Z(MSM 272300012)
n3:dodaniDat
n4:2004
n3:domaciTvurceVysledku
n5:6280013
n3:druhVysledku
n17:D
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
609646
n3:idVysledku
RIV/61989100:27230/03:00007828
n3:jazykVysledku
n15:eng
n3:klicovaSlova
de-noising, entropy, library, threshold, wavelet
n3:klicoveSlovo
n12:library n12:de-noising n12:threshold n12:wavelet n12:entropy
n3:kontrolniKodProRIV
[8BE4830C2510]
n3:mistoKonaniAkce
Ostrava
n3:mistoVydani
Ostrava
n3:nazevZdroje
Proceedings of XXVIII Seminary ASR 2003 %22Instruments and Control%22
n3:obor
n16:JB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n4:2003
n3:tvurceVysledku
Kupczak, Marek
n3:typAkce
n18:EUR
n3:zahajeniAkce
2003-05-06+02:00
n3:zamer
n8:MSM%20272300012
s:numberOfPages
8
n14:hasPublisher
Vysoká škola báňská - Technická univerzita Ostrava
n19:isbn
80-248-0326-7
n6:organizacniJednotka
27230