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Proceedings Paper

Optoelectronic hybrid correlator based on a programmable LCTV spatial light modulator
Author(s): Tianji Wang; Shining Yang; Yaotang Li; Shichao Zhang; Shaowu Fan; Huanrong Wen
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Paper Abstract

We describe a hybrid processing real time optical correlator that uses programmable liquid crystal teleiesion (LcTr) spatial optical modulator. A joint transform optical correlator with a photorefractive crystal BSO has been successfully applied to real time object recognition. Hoerer, a major shortcoming of this optical correlator is its sensitivity to the scale and orientation of the test image. Thus, its application is restricted. We present a scale- and rotational-invariant correlation hybrid processing system, namely a joint transform digital-optical correlator using photorefractive crystal BSO and programmable LCT spatial light modulator.

Paper Details

Date Published: 1 July 1990
PDF: 1 pages
Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); doi: 10.1117/12.22237
Show Author Affiliations
Tianji Wang, Guangzhou Institute of Electronic Technology (China)
Shining Yang, Guangzhou Institute of Electronic Technology (China)
Yaotang Li, Guangzhou Institute of Electronic Technology (China)
Shichao Zhang, Guangzhou Institute of Electronic Technology (China)
Shaowu Fan, Guangzhou Institute of Electronic Technology (China)
Huanrong Wen, Guangzhou Institute of Electronic Technology (China)


Published in SPIE Proceedings Vol. 1319:
Optics in Complex Systems

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