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Proceedings Paper

Clairvoyant fusion detection of ocean anomalies in WorldView-2 spectral imagery
Author(s): Alan Schaum; Eric Allman; Matthew Stites
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Paper Abstract

For every possible mixture of clouds and ocean in WorldView-2 8-band data, we construct an anomaly detector (called a “clairvoyant” because we never know which mixture is appropriate in any given pixel). Then we combine these using a fusion technique. The usual method of deriving an analytic expression describing the envelope of all the clairvoyants’ decision boundaries is not possible. Instead, we compute the intersections of infinitesimally close boundaries generated by differential changes in the mixing fraction. When glued together, these 6-dimensional hyperstrings constitute the desired 7-dimensional decision boundary of the fused anomaly detector. However, no closed-form solution exists for the fused result. Therefore, we construct an approximation to the fused detection boundary by first flattening the strings into 6-dimensional hyperplanes and then gluing them together à la 3D printing.

Paper Details

Date Published: 19 September 2016
PDF: 11 pages
Proc. SPIE 9976, Imaging Spectrometry XXI, 99760G (19 September 2016); doi: 10.1117/12.2239142
Show Author Affiliations
Alan Schaum, U.S. Naval Research Lab. (United States)
Eric Allman, U.S. Naval Research Lab. (United States)
Matthew Stites, Space Dynamics Lab. (United States)

Published in SPIE Proceedings Vol. 9976:
Imaging Spectrometry XXI
John F. Silny; Emmett J. Ientilucci, Editor(s)

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