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Proceedings Paper

Post-processing for anisoplanatic AO corrected images
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Paper Abstract

The point spread function (PSF) of an adaptive optics system evolves in the Field Of View (FOV). This variation strongly limits the conventional deconvolution methods for the processing of wide FOV images. A theoretical expression of this PSF variation is derived. This expression is both validated on simulations and experimental data. It is then applied to the a posteriori processing of stellar fields. Using the available prior information about the object (point-like sources), this technique allows the restoration of the star parameters (positions and intensities) with a precision much better than the conventional methods, in a FOV much larger than the isoplanatic field.

Paper Details

Date Published: 17 November 2000
PDF: 12 pages
Proc. SPIE 4125, Propagation and Imaging through the Atmosphere IV, (17 November 2000); doi: 10.1117/12.409292
Show Author Affiliations
Thierry Fusco, ONERA (France)
Jean-Marc Conan, ONERA (France)
Laurent M. Mugnier, ONERA (France)
Vincent Michau, ONERA (France)
Gerard Rousset, ONERA (France)

Published in SPIE Proceedings Vol. 4125:
Propagation and Imaging through the Atmosphere IV
Michael C. Roggemann, Editor(s)

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