NDLI: Iterative reconstruction of CT images with PETSc

Content Provider	IEEE Xplore Digital Library
Author	Flores, Liubov Vidal, Vicent Mayo, Patricia Rodenas, Francisco Verdu, Gumersindo
Copyright Year	2011
Description	Author affiliation: Polytechnic University of Valencia Valencia, Spain (Flores, Liubov; Vidal, Vicent; Mayo, Patricia; Rodenas, Francisco; Verdu, Gumersindo)
Abstract	In X-ray computed tomography (CT) the X rays are used to obtain the projection data needed to generate an image of the inside of an object. The image can be generated with different techniques. Algebraic methods are more suitable for the reconstruction of images with high contrast and precision in noisy conditions and from a small number of projections. Their use may be important in portable scanners for their functionality in emergency situations. However, in practice, these methods are not widely used due to the high computational cost of their implementation. In this work we analyze and propose the usage of the PETSc library for the optimal usage of a system in the parallel reconstruction of images. Also, the quality comparison of the images reconstructed with both methods, analytical Filtered Back projection (FBP) and iterative LSQR, has been performed.
Starting Page	133
Ending Page	136
File Size	355925
Page Count	4
File Format	PDF
ISBN	9781424493517
e-ISBN	9781424493524
DOI	10.1109/BMEI.2011.6098313
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computed tomography CT image reconstruction parallel algorithm PETSc library Libraries Computational efficiency Mathematical model Iterative methods Image reconstruction Equations
Content Type	Text
Resource Type	Article

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