Abstract

A programmable real-time optical joint transform correlator that generates sharper autocorrelation peaks is presented. In the system, a Microchannel spatial light modulator (MSLM) is utilized as the threshold hard-clipping square-law device. A liquid crystal television (LCTV) is used, with a microcomputer, to display input target and reference image at the input plane. By using the feed-back loop, in principle, the system would offer adaptive processing capability. A preliminary experimental result is given.

© 1988 Optical Society of America