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Proceedings Paper

Phase-only matched filtering with dual liquid crystal spatial light modulators
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Paper Abstract

A real-time optical processing system with dual liquid-crystal spatial light modulators is presented that have been used as an amplitude input and a multilevel phase-only filter, respectively. Numerical calculations are performed for a gray-level and binarized amplitude- phase correlations. An improvement of performance criteria such as discrimination capability, light efficiency, and signal-to-noise ratio has been made for an amplitude in a binary mode to phase correlator. The higher the threshold level of binarized objects is, the better performance criteria produce. Optical experimental results supporting with calculations are described.

Paper Details

Date Published: 28 August 1995
PDF: 11 pages
Proc. SPIE 2565, Optical Implementation of Information Processing, (28 August 1995); doi: 10.1117/12.217649
Show Author Affiliations
Takeshi Takahashi, Univ. of Industrial Technology (Japan)
Yukihiro Ishii, Univ. of Industrial Technology (Japan)


Published in SPIE Proceedings Vol. 2565:
Optical Implementation of Information Processing
Bahram Javidi; Joseph L. Horner, Editor(s)

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