About: Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	It is generally known that every astronomical image which was acquired by CCD sensor, have to be corrected by dark frame. The Dark frame is mapping the dark current of the CCD. May become that we don't have the dark frame image and we cannot directly to correct the astronomical images. This work deals with dark frame correction based on Bayesian estimator in the wavelet domain. The models of the marginal probability density function (PDF) of the wavelet coefficients of astronomical images and dark frame images based on generalized Laplacian is used by this estimator. The parameters of the models, which were mentioned above, were estimated by least square error method on set of the images from our image database.The correction of the astronomical images by dark frame is better than the Bayesian estimator, but further work will deal with more sophisticated Bayesian estimator with more robust statistical description of the images. It is generally known that every astronomical image which was acquired by CCD sensor, have to be corrected by dark frame. The Dark frame is mapping the dark current of the CCD. May become that we don't have the dark frame image and we cannot directly to correct the astronomical images. This work deals with dark frame correction based on Bayesian estimator in the wavelet domain. The models of the marginal probability density function (PDF) of the wavelet coefficients of astronomical images and dark frame images based on generalized Laplacian is used by this estimator. The parameters of the models, which were mentioned above, were estimated by least square error method on set of the images from our image database.The correction of the astronomical images by dark frame is better than the Bayesian estimator, but further work will deal with more sophisticated Bayesian estimator with more robust statistical description of the images. (en)
Title	Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain (en)
skos:prefLabel	Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain (en)
skos:notation	RIV/68407700:21230/06:00120898!RIV10-MSM-21230___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA102/05/2054), P(GD102/03/H109), Z(MSM6840770014)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Páta, Petr Švihlík, Jan
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	470434
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/06:00120898
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dark frame correction; wavelet transform (en)
http://linked.open.../riv/klicoveSlovo	wavelet transform dark frame correction
http://linked.open...ontrolniKodProRIV	[14C322758589]
http://linked.open...v/mistoKonaniAkce	Vancouver
http://linked.open...i/riv/mistoVydani	Madison
http://linked.open...i/riv/nazevZdroje	2006 IEEE International Symposium on Signal Processing and Information Technology
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Methods, Structures and Components of Electronic Wireless Communication Qualitative aspects of audiovisual information processing in multimedia systems
http://linked.open...UplatneniVysledku	2006
http://linked.open...iv/tvurceVysledku	Páta, Petr Švihlík, Jan
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2006-08-27 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Výzkum perspektivních informačních a komunikačních technologií
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Omnipress
https://schema.org/isbn	978-0-7803-9753-8
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain Dark Frame Correction Via Bayesian Estimator in the Wavelet Domain

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