Hyperspectral matched filter with false-alarm mitigation

DiPietro, Robert S.; Manolakis, Dimitris G.; Lockwood, Ronald B.; Cooley, Thomas; Jacobson, John

doi:doi:10.1117/1.OE.51.1.016202

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Optical Engineering / Volume 51 / Issue 1 / Remote Sensing

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Hyperspectral matched filter with false-alarm mitigation

Opt. Eng. 51, 016202 (Feb 10, 2012); http://dx.doi.org/10.1117/1.OE.51.1.016202

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Abstract

References (12)

Citing Articles (1)

Robert S. DiPietro, Dimitris G. Manolakis, and Ronald B. Lockwood

MIT Lincoln Laboratory, 244 Wood Street, Lexington, Massachusetts 02420

Thomas Cooley

Space Vehicles Directorate Air Force Research Laboratory, Kirtland AFB, New Mexico 87117

John Jacobson

National Air and Space Intelligence Center, Wright-Patterson AFB, Ohio 45433

One of the fundamental challenges for a hyperspectral imaging surveillance system is the detection of sub-pixel objects in background clutter. The background surrounding the object, which acts as interference, provides the major obstacle to successful detection. One algorithm that is widely used in hyperspectral detection and successfully suppresses the background in many situations is the matched filter detector. However, the matched filter also produces false alarms in many situations. We use three simple and well-established concepts—the target-background replacement model, the matched filter, and Mahalanobis distance—to develop the matched filter with false alarm mitigation (MF-FAM), a dual-threshold detector capable of eliminating many matched filter false alarms. We compare this algorithm to the mixture tuned matched filter (MTMF), a popular approach to matched filter false alarm mitigation found in the ENVI® software environment. The two algorithms are shown to produce nearly identical results using real hyperspectral data, but the MF-FAM is shown to be operationally, computationally, and theoretically simpler than the MTMF.

History

Received Jul 11, 2011
Accepted Nov 09, 2011
Revised Nov 07, 2011
Published online Feb 10, 2012

Digital Object Identifier

http://dx.doi.org/10.1117/1.OE.51.1.016202

Citation

Robert S. DiPietro, Dimitris G. Manolakis, Ronald B. Lockwood, Thomas Cooley and John Jacobson, "Hyperspectral matched filter with false-alarm mitigation", Opt. Eng. 51, 016202 (Feb 10, 2012); http://dx.doi.org/10.1117/1.OE.51.1.016202