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Proceedings Paper

Hybrid Optical/Electronic Pattern Recognition With Both Coherent And Noncoherent Operations
Author(s): J. Lynn Smith; Douglas R. DeVoe
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Paper Abstract

A system approach to correlation-based rotation and scale invariant pattern recognition is described. Familiar operations such as the coherent optical Fourier transform and noncoherent correlation are included in a concept which is strongly influenced by the need for practical manufacturing techniques. There is merit in amplitude-only filtering for noncoherent correlation, and matched filtering diffraction effects are not severe. Emphasis for innovation is on electronic subsystems. A digital remapper and analog correlation field processor are discussed. Analysis leading to a prediction of several thousand frames per second is summarized.

Paper Details

Date Published: 22 August 1988
PDF: 8 pages
Proc. SPIE 0938, Digital and Optical Shape Representation and Pattern Recognition, (22 August 1988); doi: 10.1117/12.976590
Show Author Affiliations
J. Lynn Smith, EO Systems Group (United States)
Douglas R. DeVoe, EO Systems Group (United States)


Published in SPIE Proceedings Vol. 0938:
Digital and Optical Shape Representation and Pattern Recognition
Richard D. Juday, Editor(s)

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