Dvourozměrná Bazesovská dekonvoluce lékařských ultrasonografických obrazů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F08%3APU77617" target="_blank" >RIV/00216305:26220/08:PU77617 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Two-Dimmensional Blind Bayesian Deconvolution of Medical Ultrasound Images

Popis výsledku v původním jazyce

A new approach to two-dimensional blind deconvolution of ultrasonic images in a Bayesian framework is presented. The radiofrequency image data are modeled as a convolution of the point spread function and the tissue function, with additive white noise. The deconvolution algorithm is derived from statistical assumptions about the tissue function, the point spread function and the noise. It is solved as an iterative optimization problem. In each iteration, additional constraints are applied as a projection operator, to further stabilize the process. The proposedmethod is an extension of the homomorphic deconvolutionwhich is used here only to compute the initial estimate of the point spread function. Homomorphic deconvolution is based on the assumption that the point spread function and the tissue function lie in different bands of the cepstrum domain, which is not true. This limiting constraint is relaxed in the subsequent iterative deconvolution. The deconvolution is applied globally, t

Název v anglickém jazyce

Two-Dimmensional Blind Bayesian Deconvolution of Medical Ultrasound Images

Popis výsledku anglicky

A new approach to two-dimensional blind deconvolution of ultrasonic images in a Bayesian framework is presented. The radiofrequency image data are modeled as a convolution of the point spread function and the tissue function, with additive white noise. The deconvolution algorithm is derived from statistical assumptions about the tissue function, the point spread function and the noise. It is solved as an iterative optimization problem. In each iteration, additional constraints are applied as a projection operator, to further stabilize the process. The proposedmethod is an extension of the homomorphic deconvolutionwhich is used here only to compute the initial estimate of the point spread function. Homomorphic deconvolution is based on the assumption that the point spread function and the tissue function lie in different bands of the cepstrum domain, which is not true. This limiting constraint is relaxed in the subsequent iterative deconvolution. The deconvolution is applied globally, t

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FS - Lékařská zařízení, přístroje a vybavení

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Ultrasonocs, Ferroelectrics, and Frequency Control

ISSN

0885-3010

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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