Abstract

Conventional Synthetic Discriminant Functions¹ (SDF's) produce very broad output correlation peaks and as a result do not achieve a 100% success rate in discriminating one class of images from another. To solve this problem, Homer and Gianino² introduced the phase-only SDF filters; these filters produce very sharp correlation peaks but do not satisfy the equal correlation peaks (ECP) rule in the output plane.³ Jared^4,5 recently proposed an iterative relaxation algorithm, which enables the design of phase-only SDF's and binary phase-only SDF's to satisfy the ECP rule. Their idea was to ensure that the filter-encoding constraints are taken into account at the design stage; this was called the filter SDF (fSDF).

© 1995 IEEE