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Proceedings Paper

Aspects Of The Convolution Method For Image Reconstruction From Projections
Author(s): Robert M. Lewitt
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Paper Abstract

The convolution/back-projection algorithm has certain characteristics which enable it to reconstruct useful images when the projection data or data-processing operations are incomplete or when they are approximated rather crudely. In this paper we show how the shape of the convolution kernel can be exploited for reconstruction from truncated projections and for ultra-fast approximate projection filtering. The results of simulations indicate that these techniques would be of value in practical computed tomography.

Paper Details

Date Published: 6 July 1979
PDF: 8 pages
Proc. SPIE 0173, Application of Optical Instrumentation in Medicine VII, (6 July 1979); doi: 10.1117/12.957152
Show Author Affiliations
Robert M. Lewitt, State University of New York at Buffalo (United States)


Published in SPIE Proceedings Vol. 0173:
Application of Optical Instrumentation in Medicine VII
Joel E. Gray, Editor(s)

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