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Proceedings Paper

Progressive band selection
Author(s): Kevin Fisher; Chein-I Chang
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Paper Abstract

Progressive band selection (PBS) reduces spectral redundancy without significant loss of information, thereby reducing hyperspectral image data volume and processing time. Used onboard a spacecraft, it can also reduce image downlink time. PBS prioritizes an image's spectral bands according to priority scores that measure their significance to a specific application. Then it uses one of three methods to select an appropriate number of the most useful bands. Key challenges for PBS include selecting an appropriate criterion to generate band priority scores, and determining how many bands should be retained in the reduced image. The image's Virtual Dimensionality (VD), once computed, is a reasonable estimate of the latter. We describe the major design details of PBS and test PBS in a land classification experiment.

Paper Details

Date Published: 18 August 2009
PDF: 10 pages
Proc. SPIE 7457, Imaging Spectrometry XIV, 745709 (18 August 2009); doi: 10.1117/12.824531
Show Author Affiliations
Kevin Fisher, NASA Goddard Space Flight Ctr. (United States)
Chein-I Chang, Univ. of Maryland, Baltimore County (United States)


Published in SPIE Proceedings Vol. 7457:
Imaging Spectrometry XIV
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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