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Proceedings Paper

Optical correlator using binary phase-only filters implemented with hybrid TV/liquid-crystal spatial light modulators
Author(s): V. V. Dadeshidze; Igor N. Kompanets; I. L. Lindunen; Anatoly A. Vasiliev
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Paper Abstract

A hybrid device which consists of a liquid crystal spatial light modulator (LC SLM) connected through fiber optics to a TV screen, being interfaced to a desk-top computer, is used for generating binary phase-only spatial filters (BPOFs) in a real-time TV/optical correlator. An adaptive optical/digital correlator with a BPOF and nonlinear feedback is described. The LC SLM phase-error correction is implemented using an iterative algorithm. The BPOFs with improved discrimination ability and circular harmonic BPOFs with spatial carrier are generated with the system.

Paper Details

Date Published: 15 March 1994
PDF: 10 pages
Proc. SPIE 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII, (15 March 1994); doi: 10.1117/12.169363
Show Author Affiliations
V. V. Dadeshidze, P.N. Lebedev Physical Institute (Russia)
Igor N. Kompanets, P.N. Lebedev Physical Institute (Russia)
I. L. Lindunen, P.N. Lebedev Physical Institute (Russia)
Anatoly A. Vasiliev, P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 2065:
Optics, Illumination, and Image Sensing for Machine Vision VIII
Donald J. Svetkoff, Editor(s)

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