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Proceedings Paper

Limited-Angle, 3D Density Reconstruction By Gradient Methods
Author(s): D. N. Ghosh Roy; L. D. Waters; G. T. Gullberg; R. A. Kruger
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Paper Abstract

Steepest descent (SD) and conjugate gradient (CG) methods have been applied to limited-angle, 3D density reconstructions of longitudinal, circular tomography. Both variable and constant stepsize have been considered with and without positivity constraint. Simulational as well as clinical studies are reported. From the simulation studies, CG with constant steplength and with positivty constraint is found to be most effective.

Paper Details

Date Published: 1 January 1986
PDF: 7 pages
Proc. SPIE 0671, Physics and Engineering of Computerized Multidimensional Imaging and Processing, (1 January 1986); doi: 10.1117/12.966678
Show Author Affiliations
D. N. Ghosh Roy, University of Utah (United States)
L. D. Waters, University of Utah (United States)
G. T. Gullberg, University of Utah (United States)
R. A. Kruger, University of Utah (United States)

Published in SPIE Proceedings Vol. 0671:
Physics and Engineering of Computerized Multidimensional Imaging and Processing
Thomas F. Budinger; Zang-Hee Cho; Orhan Nalcioglu, Editor(s)

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