Novelty filtered optical correlator using photorefractive crystal

Duncan Tsuen-Hsi Liu; Tien-Hsin Chao; Li-Jen Cheng

doi:10.1117/12.138317

1 July 1992 Novelty filtered optical correlator using photorefractive crystal

Duncan Tsuen-Hsi Liu, Tien-Hsin Chao, Li-Jen Cheng

Proceedings Volume 1701, Optical Pattern Recognition III; (1992) https://doi.org/10.1117/12.138317
Event: Aerospace Sensing, 1992, Orlando, FL, United States

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.

Citation Download Citation

Duncan Tsuen-Hsi Liu, Tien-Hsin Chao, and Li-Jen Cheng "Novelty filtered optical correlator using photorefractive crystal", Proc. SPIE 1701, Optical Pattern Recognition III, (1 July 1992); https://doi.org/10.1117/12.138317

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