NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Optical pattern recognition III; Proceedings of the Meeting, Orlando, FL, Apr. 21, 22, 1992Consideration is given to transitioning of optical processing into systems (TOPS), optical correlator hardware, phase-only optical correlation filters, optical distortion-invariant correlation filters, and optical neural networks. Particular attention is given to a test target for optical correlators, a TOPS electronic warfare channelizer program, a portable video-rate optical correlator, a joint transform correlator employing electron trapping materials, a novelty filtered optical correlator using a photorefractive crystal, a comparison of correlation performance of smart ternary phase-amplitude filters with gray-scale and binary input scenes, real-time distortion-tolerant composite filters for automatic target identification, landscaping the correlation surface, fast designing of a circular harmonic filter using simulated annealing, feature-based correlation filters for distortion invariance, automatic target recognition using a feature-based optical neural network, and a holographic inner-product processor for pattern recognition.
Document ID
19930044675
Document Type
Conference Proceedings
Authors
Casasent, David P. (Carnegie Mellon Univ. Pittsburgh, PA, United States)
Chao, Tien-Hsin (JPL Pasadena, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Subject Category
CYBERNETICS
Report/Patent Number
SPIE-1701
Distribution Limits
Public
Copyright
Other