Grayscale optical correlator for real-time onboard ATR

Tien-Hsin Chao; Hanying Zhou; George F. Reyes

doi:10.1117/12.421138

20 March 2001 Grayscale optical correlator for real-time onboard ATR

Tien-Hsin Chao, Hanying Zhou, George F. Reyes

Proceedings Volume 4387, Optical Pattern Recognition XII; (2001) https://doi.org/10.1117/12.421138
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

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.

Citation Download Citation

Tien-Hsin Chao, Hanying Zhou, and George F. Reyes "Grayscale optical correlator for real-time onboard ATR", Proc. SPIE 4387, Optical Pattern Recognition XII, (20 March 2001); https://doi.org/10.1117/12.421138

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