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Description
  • Physiological factor images and associated time activity curves are inferred in functional medical imaging, using Bayesian techniques. Specifically, the Variational Bayes (VB) framework is employed, leading to an iterative scheme of the Expectation-Maximization (EM) kind. Positivity constraints are imposed to reflect the physiological nature of the problem. Accelerated convergence is achieved by initializing the VB recursions with appropriately rotated principal components.
  • Physiological factor images and associated time activity curves are inferred in functional medical imaging, using Bayesian techniques. Specifically, the Variational Bayes (VB) framework is employed, leading to an iterative scheme of the Expectation-Maximization (EM) kind. Positivity constraints are imposed to reflect the physiological nature of the problem. Accelerated convergence is achieved by initializing the VB recursions with appropriately rotated principal components. (en)
  • Fzyiologické faktorové obrazy a s nimi spojené časové průběhy zobrazované aktivity značkujícího radionuklidu jsou odhadovány pomocí bazesovských technik. Konkrétně, je použit tzv. variační bayesovský algoritmus, vedoucí k iteračnímu postupu blízkému obecné metodice známé jako EM algoritmus. Problém je formulován a řešen s omezeními na nezápornost odhadů. Tato omezení plynou ¨z fyzikální podstaty vyšetřovaných jevů. Konvergence iteračního postupu je velmi podstatně urychlena startem využívajícím vhodně natočené hlavní komponenty rozkladu analyzovaných dat (cs)
Title
  • Fully probabilistic model for functional analysis of medical image data
  • Fully probabilistic model for functional analysis of medical image data (en)
  • Plně pravděpodobnostní model pro funkční analýzu medicínských obrazových dat (cs)
skos:prefLabel
  • Fully probabilistic model for functional analysis of medical image data
  • Fully probabilistic model for functional analysis of medical image data (en)
  • Plně pravděpodobnostní model pro funkční analýzu medicínských obrazových dat (cs)
skos:notation
  • RIV/67985556:_____/04:00106412!RIV/2005/AV0/A16005/N
http://linked.open.../vavai/riv/strany
  • 201;206
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z1075907)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 564990
http://linked.open...ai/riv/idVysledku
  • RIV/67985556:_____/04:00106412
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • factor analysis;functional medical imaging;Variational Bayes (VB) (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [F704AA2527BE]
http://linked.open...v/mistoKonaniAkce
  • Belfast
http://linked.open...i/riv/mistoVydani
  • Belfast
http://linked.open...i/riv/nazevZdroje
  • Proceedings of the Irish Signals and Systems Conference
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Šmídl, Václav
  • Quinn, A.
  • Maniouloux, Y.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • University of Belfast
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