9 March 1999 Optical results with Rayleigh quotient discrimination filters
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We report experimental laboratory results using filters that optimize the Rayleigh quotient [Richard D. Juday, 'Generalized Rayleigh quotient approach to filter optimization,' JOSA-A 15(4), 777-790 (April 1998)] for discriminating between two similar objects. That quotient is the ratio of the correlation responses to two differing objects. In distinction from previous optical processing methods it includes the phase of both objects -- not the phase of only the 'accept' object -- in the computation of the filter. In distinction from digital methods it is explicitly constrained to optically realizable filter values throughout the optimization process.
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Richard D. Juday, Richard D. Juday, John Michael Rollins, John Michael Rollins, Stanley E. Monroe, Stanley E. Monroe, Michael V. Morelli, Michael V. Morelli, } "Optical results with Rayleigh quotient discrimination filters", Proc. SPIE 3715, Optical Pattern Recognition X, (9 March 1999); doi: 10.1117/12.341327; https://doi.org/10.1117/12.341327

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