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GPU Computing Gems Emerald Edition
book

GPU Computing Gems Emerald Edition

by Wen-mei W. Hwu
January 2011
Intermediate to advanced content levelIntermediate to advanced
886 pages
28h 35m
English
Morgan Kaufmann
Content preview from GPU Computing Gems Emerald Edition
Chapter 43. Using GPUs to Learn Effective Parameter Settings for GPU-Accelerated Iterative CT Reconstruction Algorithms
Wei Xu and Klaus Mueller
43.1. Introduction, Problem Statement, and Context
In computed tomography (CT), the filtered backprojection (FBP) algorithm is most widely used for the reconstruction of an object from its X-ray projections. It considers each projection only once and is therefore fast to compute. FBP requires a great number of projection images to be acquired, and within a highly constrained scanning orbit. Recently, more awareness has been placed on reducing the patient X-ray dose. This limits the number of projection images per scan, among other factors. Here, FBP methods are less applicable and iterative reconstruction ...
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Publisher Resources

ISBN: 9780123849885