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Proceedings Paper

Grayscale optical correlator for real-time onboard ATR
Author(s): Tien-Hsin Chao; Hanying Zhou; George F. Reyes
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Paper Abstract

Jet Propulsion Laboratory has been developing grayscale optical correlator (GOC) for a variety of automatic target recognition (ATR) applications. As reported in previous papers, a 128 X 128 camcorder-sized GOC has been demonstrated for real-time field ATR demos. In this paper, we will report the recent development of a prototype 512 X 512 GOC utilizing a new miniature ferroelectric liquid crystal spatial light modulator with a 7-micrometers pixel pitch. Experimental demonstration of ATR applications using this new GOC will be presented. The potential of developing a matchbox-sized GOC will also be discussed. A new application of synthesizing new complex-valued correlation filters using this real-axis 512 X 512 SLM will also be included.

Paper Details

Date Published: 20 March 2001
PDF: 6 pages
Proc. SPIE 4387, Optical Pattern Recognition XII, (20 March 2001); doi: 10.1117/12.421138
Show Author Affiliations
Tien-Hsin Chao, Jet Propulsion Lab. (United States)
Hanying Zhou, Jet Propulsion Lab. (United States)
George F. Reyes, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 4387:
Optical Pattern Recognition XII
David P. Casasent; Tien-Hsin Chao, Editor(s)

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