Deconvolution of adaptive optics corrected images

Details Deconvolution of adaptive optics corrected images Deconvolution of adaptive optics corrected images

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001sf2a.conf..593m&link_type=abstract

Abstracts from SF2A-2001: Semaine de l'Astrophysique Francaise, meeting held in Lyon, France, May 28-June 1st, 2001, Eds.: F. Co

Physics

Optics

Scientific paper

The angular resolution of large astronomical telescopes is severely limited by the atmospheric turbulence. Adaptive optics offers a real time compensation of the turbulence. The correction is however only partial and the long exposure images must be deconvolved to restore the fine details of the object. A regularized myopic deconvolution scheme is presented. It takes into account the noise statistics in the image, the imprecise knowledge of the point spread function, and the available a priori information on the object (spatial structure, positivity...). This procedure is applied to astronomical images. In particular, an edge preserving regularization is tested on several solar system objects: Ganymede, Io, Titan, Uranus.

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