About: Efficiency of Wavelet Coefficients Thresholding Techniques used for Multimedia and Astronomical Image Denoising

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This paper deals with image denoising based on the wavelet transform realized by Mallat algorithm and À trous algorithm. The effectiveness of global and subband thresholding techniques are studied on multimedia and astronomical images contaminated by Gaussian noise. Experimental results on several testing images are compared with each other from two objective quality aspects (PSNR, RMSE). Astronomical image denoising techniques differ from those used for multimedia images, because astronomical data are processed by computers and are not evaluated by humans. Thus we show especially the difference between quality criteria related with both types of images after denoising. In case of astronomical data, important scientific criteria as stellar magnitude and FWHM (Full Width at Half Maximum) changes are studied in processed images after noise removal. This paper deals with image denoising based on the wavelet transform realized by Mallat algorithm and À trous algorithm. The effectiveness of global and subband thresholding techniques are studied on multimedia and astronomical images contaminated by Gaussian noise. Experimental results on several testing images are compared with each other from two objective quality aspects (PSNR, RMSE). Astronomical image denoising techniques differ from those used for multimedia images, because astronomical data are processed by computers and are not evaluated by humans. Thus we show especially the difference between quality criteria related with both types of images after denoising. In case of astronomical data, important scientific criteria as stellar magnitude and FWHM (Full Width at Half Maximum) changes are studied in processed images after noise removal. (en)
Title	Efficiency of Wavelet Coefficients Thresholding Techniques used for Multimedia and Astronomical Image Denoising Efficiency of Wavelet Coefficients Thresholding Techniques used for Multimedia and Astronomical Image Denoising (en)
skos:prefLabel	Efficiency of Wavelet Coefficients Thresholding Techniques used for Multimedia and Astronomical Image Denoising Efficiency of Wavelet Coefficients Thresholding Techniques used for Multimedia and Astronomical Image Denoising (en)
skos:notation	RIV/68407700:21230/13:00206928!RIV14-MSM-21230___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GA205/09/1302), S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Páta, Petr Bednář, Jan Anisimova, Elena
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	72056
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/13:00206928
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	wavelet transform; global and subband thresholding; mallat algorithm; a trous; astronomical images (en)
http://linked.open.../riv/klicoveSlovo	a trous global and subband thresholding mallat algorithm astronomical images wavelet transform
http://linked.open...ontrolniKodProRIV	[22D7FCDB655D]
http://linked.open...v/mistoKonaniAkce	Plzeň
http://linked.open...i/riv/mistoVydani	Pilsen
http://linked.open...i/riv/nazevZdroje	18th 2013 International Conference on Applied Electronics
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Study of sporadic meteors and weak meteor showers using automatic video intensifiers cameras
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Bednář, Jan Anisimova, Elena Páta, Petr
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2013-09-10 (xsd:date)
issn	1803-7232
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Západočeská univerzita v Plzni
https://schema.org/isbn	978-80-261-0166-6
http://localhost/t...ganizacniJednotka	21230

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