We present a joint transform correlator for color image recognition by using three liquid-crystal spatial light modulators. A method for simultaneously obtaining the correlation peaks of red, green, and blue is proposed and experimentally demonstrated.
© 2002 Optical Society of America
(070.4550) Fourier optics and signal processing : Correlators
(070.5010) Fourier optics and signal processing : Pattern recognition
(200.4740) Optics in computing : Optical processing
(230.3720) Optical devices : Liquid-crystal devices
Mei-Li Hsieh, Ken Y. Hsu, and Hongchen Zhai, "Color Image Recognition by Use of a Joint Transform Correlator of Three Liquid-Crystal Televisions," Appl. Opt. 41, 1500-1504 (2002)