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An overview of the field of optical pattern recognition using photorefractive media is presented. The topics include spatial light modulation, parallel image subtraction, parallel spectrum subtraction, and real time optical correlation.
Pochi Yeh
"Optical pattern recognition using photorefractive media", Proc. SPIE 10262, Optical Pattern Recognition: A Critical Review, 102620A (1 April 1992); https://doi.org/10.1117/12.59854
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Pochi Yeh, "Optical pattern recognition using photorefractive media," Proc. SPIE 10262, Optical Pattern Recognition: A Critical Review, 102620A (1 April 1992); https://doi.org/10.1117/12.59854