A Splitting-Based Iterative Algorithm for Accelerated Statistical X-Ray CT Reconstruction

Statistical image reconstruction using penalized weighted least-squares (PWLS) criteria can improve image-quality in X-ray computed tomography (CT). However, the huge dynamic range of the statistical weights leads to a highly shift-variant inverse problem making it difficult to precondition and acce...

Full description

Saved in:

Bibliographic Details
Published in:	IEEE transactions on medical imaging Vol. 31; no. 3; pp. 677 - 688
Main Authors:	Ramani, S., Fessler, J. A.
Format:	Journal Article
Language:	English
Published:	United States IEEE 01.03.2012 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Acceleration Algorithms Alternating minimization Computed tomography Computer Simulation Convergence Head - diagnostic imaging Humans Image reconstruction iterative algorithm Iterative methods Least-Squares Analysis method of multipliers Minimization Models, Biological Optimization Phantoms, Imaging Radiographic Image Enhancement - methods regularization statistical image reconstruction Studies Tomography, X-Ray Computed - methods
ISSN:	0278-0062, 1558-254X, 1558-254X
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Be the first to leave a comment!