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Proceedings Paper

"Backscratching" alternative to PRSI pattern recognition
Author(s): Stanley E. Monroe; Richard D. Juday
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Paper Abstract

The Backscratching optical correlation algorithm has been proposed for four degree of freedom tracking. In an alternating Cartesian and log-polar implementation, the tracked parameters are scale, rotation, and two-dimensional translation. The algorithm has a finite capture radius in the four-dimensional tracking space. The capture radius is dependent on the tracked object, the correlator architecture, and the method of filter computation. Some methods of extending the capture radius are discussed. One is a modification of matched filters, another is a careful consideration of log-polar transform center, and another is an operational method. Some simulations of the filter construction method, in which a larger capture radius is gained at the expense of precision in determining the four parameters are presented.

Paper Details

Date Published: 1 September 1990
PDF: 6 pages
Proc. SPIE 1295, Real-Time Image Processing II, (1 September 1990); doi: 10.1117/12.21233
Show Author Affiliations
Stanley E. Monroe, Lockheed Engineering and Sciences Co. (United States)
Richard D. Juday, NASA/Johnson Space Ctr. (United States)


Published in SPIE Proceedings Vol. 1295:
Real-Time Image Processing II
Richard D. Juday, Editor(s)

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