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Proceedings Paper

Interpolation-Free Scanning And Sampling Scheme For Tomographic Reconstructions
Author(s): K. D. Donohue; J. Saniie
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Paper Abstract

In this paper a sampling scheme is developed for computer tomography (CT) systems that eliminates the need for interpolation. A set of projection angles along with their corresponding sampling rates are derived from the geometry of the Cartesian grid such that no interpolation is required to calculate the final image points for the display grid. A discussion is presented on the choice of an optimal set of projection angles that will maintain a resolution comparable to a sampling scheme of regular measurement geometry, while minimizing the computational load. The interpolation-free scanning and sampling (IFSS) scheme developed here is compared to a typical sampling scheme of regular measurement geometry through a computer simulation.

Paper Details

Date Published: 1 January 1987
PDF: 8 pages
Proc. SPIE 0767, Medical Imaging, (1 January 1987); doi: 10.1117/12.966981
Show Author Affiliations
K. D. Donohue, Illinois Institute of Technology (United States)
J. Saniie, Illinois Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0767:
Medical Imaging
Samuel J. Dwyer; Roger H. Schneider, Editor(s)

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