A Krasnoselskii-Mann Algorithm With an Improved EM Preconditioner for PET Image Reconstruction

This paper presents a preconditioned Krasnoselskii-Mann (KM) algorithm with an improved EM preconditioner (IEM-PKMA) for higher-order total variation (HOTV) regularized positron emission tomography (PET) image reconstruction. The PET reconstruction problem can be formulated as a three-term convex op...

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Bibliographic Details
Published in:	IEEE transactions on medical imaging Vol. 38; no. 9; pp. 2114 - 2126
Main Authors:	Lin, Yizun, Schmidtlein, C. Ross, Li, Qia, Li, Si, Xu, Yuesheng
Format:	Journal Article
Language:	English
Published:	United States IEEE 01.09.2019 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Algorithms Biomedical imaging Brain - diagnostic imaging Computational geometry Convergence Convex functions Convexity Humans Image processing Image Processing, Computer-Assisted - methods Image reconstruction Krasnoselskii-Mann algorithm Male maximum likelihood estimation Middle Aged Optimization Phantoms, Imaging Positron emission Positron emission tomography Positron-Emission Tomography - methods Tomography total variation
ISSN:	0278-0062, 1558-254X, 1558-254X
Online Access:	Get full text
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