Comparison of four natural pixel bases for SPECT imaging

In this paper the problem of restoring a two-dimensional tomographic medical image is considered. The emission function f ( P ) is defined on a plane circular domain Ω , and has to be restored from data collected by a SPECT machine. Through an approach known as natural pixel discretization, the solu...

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Vydané v:	Journal of computational and applied mathematics Ročník 198; číslo 2; s. 361 - 377
Hlavní autori:	Bevilacqua, R., Bozzo, E., Menchi, O.
Médium:	Journal Article Konferenčný príspevok..
Jazyk:	English
Vydavateľské údaje:	Amsterdam Elsevier B.V 15.01.2007 Elsevier
Predmet:	Applied sciences Artificial intelligence Computer science; control theory; systems Exact sciences and technology Fourier analysis Ill-posedness Image processing Information, signal and communications theory Mathematics Numerical analysis Numerical analysis. Scientific computation Numerical linear algebra Pattern recognition. Digital image processing. Computational geometry Regularization Restoration Sciences and techniques of general use Signal processing Telecommunications and information theory Image processing Restoration Regularization Ill-posedness Fast Fourier transformation Numerical linear algebra Image restoration Discretization method Direct method Numerical analysis Linear system Matrix inversion Applied mathematics Imaging Two-dimensional calculations Ill posed problem
ISSN:	0377-0427, 1879-1778
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