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Optical Engineering

Performance evaluation of quadratic correlation filters for target detection and discrimination in infrared imagery
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Paper Abstract

The detection and discrimination of targets in infrared imagery has been a challenging problem due to the variability of target and clutter (background) signatures. We discuss the application of a novel quadratic filtering method using missile seeker infrared closing sequences. Image filtering techniques are well suited for target detection applications, since they avoid the disadvantages of typical pixel-based detection schemes (such as segmentation and edge extraction). Another advantage is that the throughput complexity of the filtering approach, in the detection process, also does not vary with scene content. The performance of the proposed approach is assessed on several datasets, and the results are compared with that of previous linear filtering techniques. Since we can obtain the signature of some of the clutter "in the field" or during operation, we examine the impact of updating the filters to adapt to the clutter.

Paper Details

Date Published: 1 August 2004
PDF: 7 pages
Opt. Eng. 43(8) doi: 10.1117/1.1767195
Published in: Optical Engineering Volume 43, Issue 8
Show Author Affiliations
S. Richard F. Sims, U.S. Army Aviation and Missile Command (United States)
Abhijit Mahalanobis, Lockheed Martin Missiles & Fire Control (United States)

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