Selecting a ternary phase-amplitude filter mask for target discrimination

David L. Calloway

doi:10.1117/12.235640

15 March 1996 Selecting a ternary phase-amplitude filter mask for target discrimination

David L. Calloway

Proceedings Volume 2752, Optical Pattern Recognition VII; (1996) https://doi.org/10.1117/12.235640
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

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.

Citation Download Citation

David L. Calloway "Selecting a ternary phase-amplitude filter mask for target discrimination", Proc. SPIE 2752, Optical Pattern Recognition VII, (15 March 1996); https://doi.org/10.1117/12.235640

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available