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Scale-invariant binary phase-only matched filter using a ferroelectric-liquid-crystal spatial light modulator

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Abstract

We describe the implementation of a scale-invariant binary phase-only matched filter using a 128 × 128 ferroelectric spatial light modulator. A 5-dB discrimination was obtained between a 10-image training set of highly correlated characters (E’s and F’s) over a scale range of 1.0 to 1.5.

© 1994 Optical Society of America

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