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Proceedings Paper

Image-quality degradation and retrieval errors introduced by registration and interpolation of multispectral digital images
Author(s): Bradley G. Henderson; Christoph C. Borel; James P. Theiler; Barham W. Smith
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Paper Abstract

Full utilization of multispectral data acquired by whiskbroom and pushbroom imagers requires that the individual channels be registered accurately. Poor registration introduces errors which can be significant, especially in high contrast areas such as boundaries between regions. We simulate the acquisition of multispectral imagery in order to estimate the errors that are introduced by co-registration of different channels and interpolation within the images. We compute the modulation transfer function and image quality degradation brought about by fractional pixel shifting and calculate errors in retrieved quantities (surface temperature and water vapor) that occur as a result of interpolation. We also present a method which might be used to estimate sensor platform motion for accurate registration of images acquired by a pushbroom scanner.

Paper Details

Date Published: 31 May 1996
PDF: 12 pages
Proc. SPIE 2759, Signal and Data Processing of Small Targets 1996, (31 May 1996); doi: 10.1117/12.241172
Show Author Affiliations
Bradley G. Henderson, Los Alamos National Lab. (United States)
Christoph C. Borel, Los Alamos National Lab. (United States)
James P. Theiler, Los Alamos National Lab. (United States)
Barham W. Smith, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 2759:
Signal and Data Processing of Small Targets 1996
Oliver E. Drummond, Editor(s)

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