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Optical Engineering

Novel calibration recovery technique for an expectation maximization tomographic reconstruction
Author(s): William R. Johnson; Dan O'Connell; Eustace L. Dereniak; E. Keith Hege
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Paper Abstract

An experiment is conducted that successfully reduces the amount of aberration detected in a reconstructed hyperspectral datacube. The correction alleviates an unnoticed rotational misalignment in the calibration of our near-infrared flash hyperspectral imager. This alteration induces a spherical-aberration-like artifact as well as spectral defects because of the three-dimensional hyperspectral quality of the data. This artifact, which would cause severe misregistration of the spatio-spectral information, is correctable post detection.

Paper Details

Date Published: 1 January 2004
PDF: 2 pages
Opt. Eng. 43(1) doi: 10.1117/1.1631934
Published in: Optical Engineering Volume 43, Issue 1
Show Author Affiliations
William R. Johnson, Univ. of Arizona (United States)
Dan O'Connell, Univ. of Arizona (United States)
Eustace L. Dereniak, Optical Sciences Ctr./Univ. of Arizona (United States)
E. Keith Hege, MKS Imaging Technology, LLC (United States)


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