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Proceedings Paper

Novelty filtered optical correlator using photorefractive crystal
Author(s): Duncan Tsuen-Hsi Liu; Tien-Hsin Chao; Li-Jen Cheng
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Paper Abstract

We demonstrate a new optical correlator in which the correlation peak intensity is increased when the matched input object is moving. The basic configuration of the correlator is the same as a VanderLugt optical correlator consisting of a photorefractive crystal. The principle of this new correlator is based on the dynamic grating erasure property of photorefractive materials. The detail of this principle is described.

Paper Details

Date Published: 1 July 1992
PDF: 6 pages
Proc. SPIE 1701, Optical Pattern Recognition III, (1 July 1992); doi: 10.1117/12.138317
Show Author Affiliations
Duncan Tsuen-Hsi Liu, Jet Propulsion Lab. (United States)
Tien-Hsin Chao, Jet Propulsion Lab. (United States)
Li-Jen Cheng, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 1701:
Optical Pattern Recognition III
David P. Casasent; Tien-Hsin Chao, Editor(s)

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