Polychromatic object recognition based on circular whitening preprocessing of red-green-blue components and multichannel matched filtering is described. Computer simulations and experimental results are provided to facilitate recognizing a color target among objects of similar shape but with different color contents. Experimental results are obtained with an optical correlator with two spatial light modulators, one to introduce the scene and the second one to introduce the filter. © 1996 Optical Society of America.
Moreno, I., Kober, V., Lashin, V., Campos, J., Yaroslavsky, L. P., & Yzuel, M. J. (1996). Color pattern recognition with circular component whitening. Optics Letters, 21, 498-500. https://doi.org/10.1364/OL.21.000498