Selection of LCTV operating curves for input and filter

Richard D. Juday; Jennifer Lacroix; P. Karivaratha Rajan

doi:10.1117/12.138313

1 July 1992 Selection of LCTV operating curves for input and filter

Richard D. Juday, Jennifer Lacroix, P. Karivaratha Rajan

Proceedings Volume 1701, Optical Pattern Recognition III; (1992) https://doi.org/10.1117/12.138313
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

A liquid crystal television (LCTV) SLM's phase, amplitude, and polarization all influence our selection of operating curves for input and filter. With its continuum of drive voltage, the LCTV permits grey-level control in both locations. Selection of an optimum curve depends on expected variations in signal amplitude, presence of input scene structured noise, and other factors. Using modulators obtained from a commercially available projection LCTV, and with no specifically added input noise present, we have obtained laboratory results in which the ratio of peak intensity to correlator system noise exceeded 100:1. Unfortunately, it was massively inefficient to implement the algorithm which had been developed as the abstract for this paper was submitted. Fortunately, we have quite recently developed two insights that will speed it by several orders of magnitude, and we shall report that result in the future. We will also extend the work to include clutter objects and additive input scene noise.

Citation Download Citation

Richard D. Juday, Jennifer Lacroix, and P. Karivaratha Rajan "Selection of LCTV operating curves for input and filter", Proc. SPIE 1701, Optical Pattern Recognition III, (1 July 1992); https://doi.org/10.1117/12.138313

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