Composite filters implemented on LCDs

Brian K. Jones; James C. Kirsch; Joseph J. Booth

doi:10.1117/12.205777

28 March 1995 Composite filters implemented on LCDs

Brian K. Jones, James C. Kirsch, Joseph J. Booth

Proceedings Volume 2490, Optical Pattern Recognition VI; (1995) https://doi.org/10.1117/12.205777
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

Composite filters offer one solution to the problem of scanning numerous filters to find a single target at any aspect, orientation, or configuration. Many different techniques for generating composite filters exist, each with their own advantages and disadvantages. Liquid crystal televisions are an increasingly popular choice for spatial light modulators and are characterized by a coupled phase and amplitude response. The coupled response can cause a problem if not accounted for, however, it can also be used to more closely approximate the desired filter response. This paper will present the results of using optimally encoded composite filters on a LCTV for optical pattern recognition applications.

Citation Download Citation

Brian K. Jones, James C. Kirsch, and Joseph J. Booth "Composite filters implemented on LCDs", Proc. SPIE 2490, Optical Pattern Recognition VI, (28 March 1995); https://doi.org/10.1117/12.205777

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KEYWORDS

Composites

LCDs

Optical filters

Spatial light modulators

Image filtering

Detection and tracking algorithms

Optical correlators

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