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Proceedings Paper

Ratched Filter Restoration Of Coded-Gamma And X-Ray Imagery
Author(s): Jack D. Gaskill; Frank R. Whitehead; Joel E. Gray; Robert E. O'Mara
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Paper Abstract

Recent work has stimulated considerable interest in using radar pulse compression concepts to improve the quality of medical X-ray and gamma ray photographs. (Refs. 1 and 2) These techniques involve using a coded point spread function to obtain increased resolution and reduced ex posure time. The coded point spread function allows use of a larger aperture in the X-ray camera, but requires a post-detection processing step in order to decode the data and obtain the desired image. The point spread function must be coded in such a anner that its two-dimensional autocorrelation function is very sharply peaked. In the post-detection pro cessing; the coded data are cross-correlated with the chosen point spread function to obtain the desired image.

Paper Details

Date Published: 1 June 1972
PDF: 6 pages
Proc. SPIE 0035, Application of Optical Instrumentation in Medicine I, (1 June 1972); doi: 10.1117/12.953677
Show Author Affiliations
Jack D. Gaskill, University of Arizona (United States)
Frank R. Whitehead, University of Arizona (United States)
Joel E. Gray, University of Arizona (United States)
Robert E. O'Mara, University of Arizona (United States)


Published in SPIE Proceedings Vol. 0035:
Application of Optical Instrumentation in Medicine I
Paul L. Carson; William R. Hendee; William C. Zarnstorff, Editor(s)

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