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Proceedings Paper

Unified optical symbolic substitution processor
Author(s): David P. Casasent
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Paper Abstract

Symbolic substitution operations can be realized optically on a correlator. This is a very attractive and efficient architecture for symbolic substitution. It allows parallel multichannel realization with a fixed set of filters (on film or easily realized on low space bandwidth product spatial light modulators) using space and frequency-multiplexing or sequential filters. All basic logic, numeric and morphological image processing functions can be achieved by symbolic substitution. Moreover, all operations are possible on one multifunctional optical processor. Morphological operations are felt to be essential for ATR and pattern recognition preprocessing in clutter. They greatly improve the role for optics by allowing the same optical architecture to be used for low, medium and high level vision.

Paper Details

Date Published: 1 July 1990
PDF: 10 pages
Proc. SPIE 1215, Digital Optical Computing II, (1 July 1990); doi: 10.1117/12.18093
Show Author Affiliations
David P. Casasent, Carnegie Mellon Univ. (United States)


Published in SPIE Proceedings Vol. 1215:
Digital Optical Computing II
Raymond Arrathoon, Editor(s)

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