F. Guerault et P. Refregier, OPTIMAL CHI(2) FILTERING METHOD AND APPLICATION TO TARGETS AND BACKGROUNDS WITH RANDOM CORRELATED GRAY LEVELS, Optics letters, 22(9), 1997, pp. 630-632
We describe a pattern recognition processor based on a new optimal (2)
(chi) filtering method that is designed to localize a target with unkn
own gray levels appearing on a random background. This processor consi
sts of preprocessing of the analyzed image followed by correlations wi
th binary masks. (C) 1997 Optical Society of America.