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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F13%3A00206928" target="_blank" >RIV/68407700:21230/13:00206928 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Efficiency of Wavelet Coefficients Thresholding Techniques used for Multimedia and Astronomical Image Denoising
Original language description
This paper deals with image denoising based on the wavelet transform realized by Mallat algorithm and ? 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 areprocessed 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.
Czech name
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Czech description
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Project
<a href="/en/project/GA205%2F09%2F1302" target="_blank" >GA205/09/1302: Study of sporadic meteors and weak meteor showers using automatic video intensifiers cameras</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
18th 2013 International Conference on Applied Electronics
ISBN
978-80-261-0166-6
ISSN
1803-7232
e-ISSN
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Number of pages
4
Pages from-to
25-28
Publisher name
University of West Bohemia
Place of publication
Pilsen
Event location
Plzeň
Event date
Sep 10, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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