Optical recognizer based on FLC over silicon technology

Tim D. Wilkinson; William A. Crossland

doi:10.1117/12.341293

9 March 1999 Optical recognizer based on FLC over silicon technology

Tim D. Wilkinson, William A. Crossland

Proceedings Volume 3715, Optical Pattern Recognition X; (1999) https://doi.org/10.1117/12.341293
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

Recent developments have shown that it is possible to create an optical correlator, or recognizer, based on ferroelectric liquid crystal spatial light modulator technology. In this paper we present the expansion of this idea to include an in- house FLC over silicon SLM that allows a compact recognizer to be built. The basic architecture is the binary 1/f correlator built around a high-speed 320 X 240 pixel FLC over silicon SLM. Such an architecture can be built with low tolerance optomechanics to make a powerful yet robust optical recognizer. Initial result from this recognizer are presented in this paper along with a discussion of how this architecture can be used in more abstract recognition tasks such as motion estimation instead of the more traditional 'tank-in-the-bush' scenario.

Citation Download Citation

Tim D. Wilkinson and William A. Crossland "Optical recognizer based on FLC over silicon technology", Proc. SPIE 3715, Optical Pattern Recognition X, (9 March 1999); https://doi.org/10.1117/12.341293

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