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Optical Pattern Recognition With Self-AmplificationIn optical pattern recognition system with self-amplification, no reference beam used in addressing mode. Polarization of laser beam and orientation of photorefractive crystal chosen to maximize photorefractive effect. Intensity of recognition signal is orders of magnitude greater than other optical correlators. Apparatus regarded as real-time or quasi-real-time optical pattern recognizer with memory and reprogrammability.
Document ID
19940000138
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Liu, Hua-Kuang
(Caltech)
Date Acquired
August 16, 2013
Publication Date
March 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 3
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-18648
Accession Number
94B10138
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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