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Proceedings Paper

Spatial misregistration detection for hyperspectral sensor using in-flight data
Author(s): F. Dell'Endice; J. Nieke; D. Schläpfer; K. I. Itten
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Paper Abstract

Hyperspectral imaging (HSI) sensors suffer from spatial misregistration, an artifact that prevents the accurate acquisition of the spectra. Physical considerations let us assume that the influence of the spatial misregistration on the acquired data depends both on the wavelength, and on the across-track position. A scene-based edge detection method is therefore proposed. Such a procedure measures the variation on the spatial location of an edge between its various monochromatic projections, giving estimation for spatial misregistration, and allowing also misalignments identification. The method has been applied to several hyperspectral sensors, either prism, or grating-based designs. Results confirm the dependence assumptions on &lgr; and &thgr;, spectral wavelength and across track pixel respectively. In order to correct for spatial misregistration suggestions are also given.

Paper Details

Date Published: 7 May 2007
PDF: 12 pages
Proc. SPIE 6565, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII, 65651F (7 May 2007); doi: 10.1117/12.718591
Show Author Affiliations
F. Dell'Endice, Univ. of Zürich (Switzerland)
J. Nieke, Univ. of Zürich (Switzerland)
D. Schläpfer, Univ. of Zürich (Switzerland)
K. I. Itten, Univ. of Zürich (Switzerland)


Published in SPIE Proceedings Vol. 6565:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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