Modified morphological correlation based on bit-map representations

Pattern recognition with high discrimination can be achieved with a morphol ogical correlator. A modification of this correlator is carried out by use of a binary slicing process instead of linear thresholding. Although the ob tained correlation result is not identical to the conventional morphologica l correlation, it requires fewer calculations and provides even higher disc rimination. Two optical experimental implementations of this modified morph ological correlator as well as some experimental results are shown. (C) 199 9 Optical Society of America.