1 January 2004 Novel calibration recovery technique for an expectation maximization tomographic reconstruction
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Optical Engineering, 43(1), (2004). doi:10.1117/1.1631934
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.
William R. Johnson, Dan O'Connell, Eustace L. Dereniak, E. Keith Hege, "Novel calibration recovery technique for an expectation maximization tomographic reconstruction," Optical Engineering 43(1), (1 January 2004). http://dx.doi.org/10.1117/1.1631934
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KEYWORDS
Calibration

Expectation maximization algorithms

Tomography

Computer generated holography

Chemical elements

Staring arrays

Computed tomography

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