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Proceedings Paper

Selecting a ternary phase-amplitude filter mask for target discrimination
Author(s): David L. Calloway
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Paper Abstract

This paper describes a case study in which 21 different low-frequency magnitude masks are applied in a set of ternary phase- amplitude filters (TPAFs) to discriminate between 4 different target images. The results of each mask are compared in terms of the height of the in-class correlation peak, the average in-class and out-of-class signal-to-noise ratios, and the discrimination ratio achieved by each filter. From these measurements, a correlator designer can select a preferred TPAF mask based on the relative importance of discrimination ability and optical efficiency. The resulting TPAF can be used as is, or improved further with other optimization techniques.

Paper Details

Date Published: 15 March 1996
PDF: 10 pages
Proc. SPIE 2752, Optical Pattern Recognition VII, (15 March 1996); doi: 10.1117/12.235640
Show Author Affiliations
David L. Calloway, Air Force Wright Lab. (United States)


Published in SPIE Proceedings Vol. 2752:
Optical Pattern Recognition VII
David P. Casasent; Tien-Hsin Chao, Editor(s)

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