About: Factor Analysis of Scintigraphic Image Sequences with Integrated Probabilistic Mask of Factor Images

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Factor analysis is a well established mathematical method for factor separation in the analysis of scintigraphical sequences. The results are typically an input to the next step, e.g. factor analysis for computing significant diagnostic coefficients. However, this computing highly depends on proper identification of factors and their biological meaning, which is not ensure only by factor analysis. The main issue is separation overlaping factors from themselves and from tissue background covering the whole sequence. Factor analysis highly depends on prior information which allows us to set biologically reasonable conditions to a mathematical model. In this paper, we propose a mathematical model which estimates the probability mask of each image factor and sets it as a prior information for the next step of iterative algorithm based on Variational Bayes method. The new proposed model provides more realistic estimates of factors than the standard factor analysis. Factor analysis is a well established mathematical method for factor separation in the analysis of scintigraphical sequences. The results are typically an input to the next step, e.g. factor analysis for computing significant diagnostic coefficients. However, this computing highly depends on proper identification of factors and their biological meaning, which is not ensure only by factor analysis. The main issue is separation overlaping factors from themselves and from tissue background covering the whole sequence. Factor analysis highly depends on prior information which allows us to set biologically reasonable conditions to a mathematical model. In this paper, we propose a mathematical model which estimates the probability mask of each image factor and sets it as a prior information for the next step of iterative algorithm based on Variational Bayes method. The new proposed model provides more realistic estimates of factors than the standard factor analysis. (en)
Title	Factor Analysis of Scintigraphic Image Sequences with Integrated Probabilistic Mask of Factor Images Factor Analysis of Scintigraphic Image Sequences with Integrated Probabilistic Mask of Factor Images (en)
skos:prefLabel	Factor Analysis of Scintigraphic Image Sequences with Integrated Probabilistic Mask of Factor Images Factor Analysis of Scintigraphic Image Sequences with Integrated Probabilistic Mask of Factor Images (en)
skos:notation	RIV/67985556:_____/11:00368078!RIV12-AV0-67985556
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(AV0Z10750506)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Tichý, Ondřej
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	Ústav teorie informace a automatizace AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	199184
http://linked.open...ai/riv/idVysledku	RIV/67985556:_____/11:00368078
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Nuclear Medicine; Factor Analysis; Scintigraphy (en)
http://linked.open.../riv/klicoveSlovo	Factor Analysis Nuclear Medicine Scintigraphy
http://linked.open...ontrolniKodProRIV	[4C7A6E5A2834]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Doktorandské Dny 2011
http://linked.open...in/vavai/riv/obor	BB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Tichý, Ondřej
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2011-11-11 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Pokročilé matematické metody získávání, zpracování a využití informací a znalostí ve složitých a nedeterministických systémech
number of pages	9 (xsd:int)
http://purl.org/ne...btex#hasPublisher	České vysoké učení technické v Praze. Fakulta jaderná a fyzikálně inženýrská
https://schema.org/isbn	978-80-01-04907-5

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