Keywords :
Classifier, complex plane, contour following, distance criterion, Euclidean transformations, nearest neighbor recognition, pattern recognition, standard figure. training procedure.; Assembly; Cybernetics; Extraterrestrial measurements; Humans; Luminescence; Multidimensional systems; Nearest neighbor searches; Pattern recognition; Classifier, complex plane, contour following, distance criterion, Euclidean transformations, nearest neighbor recognition, pattern recognition, standard figure. training procedure.;