Abstract

Most proposed methods for rotation invariant multiple circular harmonic filters combine the intensities or amplitudes of the center correlations. We propose combining the coordinates of the correlation peaks of multiple circular harmonic filters. The new method is used to detect objects from a cluttered noisy input scene. High cross-correlation peaks coming from clutter do not cause false alarms. Experimental results are shown.

© 1989 Optical Society of America

Theory and optical implementation of the geometrical approach of multiple circular harmonic filters

Lixin Shen, Yunlong Sheng, and Guy Prémont
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