Unified optical symbolic substitution processor

David P. Casasent

doi:10.1117/12.18093

1 July 1990 Unified optical symbolic substitution processor

David P. Casasent

Proceedings Volume 1215, Digital Optical Computing II; (1990) https://doi.org/10.1117/12.18093
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

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.

Citation Download Citation

David P. Casasent "Unified optical symbolic substitution processor", Proc. SPIE 1215, Digital Optical Computing II, (1 July 1990); https://doi.org/10.1117/12.18093

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