<title>Generalized Matched Filtering</title>

Abstract

Matched filtering is the key concept in coherent optical pattern recognition. Unfortunately, matched filters are more sensitive to some things (nonconsequential variations in size, rotation angle, etc.) and less sensitive to other things (differences between object classes) than we might desire. The generalized matched filter is a filter tailored to the specific requirements of the task. It contains the matched filter as a special case.