Interior and Sparse-View Image Reconstruction Using a Mixed Region and Voxel-Based ML-EM Algorithm

We propose a new interior region-of-interest (ROI) image reconstruction method for emission tomography. The additional information to make the interior problem uniquely solvable is that a specific region inside the interior ROI is known to have uniform intensity level, but the constant level is unkn...

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Vydané v:	IEEE transactions on nuclear science Ročník 59; číslo 5; s. 1997 - 2007
Hlavní autori:	Jingyan Xu, Tsui, B. M. W.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	IEEE 01.10.2012
Predmet:	Attenuation Collimators Detectors Exponential radon transform Image reconstruction Image representation interior problem ML-EM molecular imaging multimodality multipinhole collimator Phantoms Poisson likelihood ROI image reconstruction Single photon emission computed tomography sparse-view reconstruction stationary SPECT
ISSN:	0018-9499, 1558-1578
On-line prístup:	Získať plný text
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