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

Takeshi Takahashi; Yukihiro Ishii

doi:10.1117/12.217649

28 August 1995 Phase-only matched filtering with dual liquid-crystal spatial light modulators

Takeshi Takahashi, Yukihiro Ishii

Proceedings Volume 2565, Optical Implementation of Information Processing; (1995) https://doi.org/10.1117/12.217649
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

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.

Citation Download Citation

Takeshi Takahashi and Yukihiro Ishii "Phase-only matched filtering with dual liquid-crystal spatial light modulators", Proc. SPIE 2565, Optical Implementation of Information Processing, (28 August 1995); https://doi.org/10.1117/12.217649

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