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Proceedings Paper

Synthesizing a parallel-projection image from pinhole data
Author(s): Eric Clarkson; Harrison H. Barrett; Donald W. Wilson
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Paper Abstract

To produce a parallel-projection image on a planar array of gamma-ray detectors, the standard procedure is to use a parallel-hole collimator. An alternative presented here to place a pinhole array in front of the detector and to synthesize parallel projections from the pinhole data. This eliminates the physical blurring and distance-dependent resolution effects of collimators, and replaces them with the mathematical problem of estimating projection integrals. We provide conditions under which this can reasonably be done and show some examples.

Paper Details

Date Published: 24 July 1998
PDF: 9 pages
Proc. SPIE 3336, Medical Imaging 1998: Physics of Medical Imaging, (24 July 1998); doi: 10.1117/12.317024
Show Author Affiliations
Eric Clarkson, Optical Sciences Ctr./Univ. of Arizona (United States)
Harrison H. Barrett, Optical Sciences Ctr./Univ. of Arizona and Health Sciences Ctr./Univ. of Arizona (United States)
Donald W. Wilson, Health Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 3336:
Medical Imaging 1998: Physics of Medical Imaging
James T. Dobbins; John M. Boone, Editor(s)

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