Deconvolution of adaptive optics images: from theory to practice

Details Deconvolution of adaptive optics images: from theory to practice Deconvolution of adaptive optics images: from theory to practice

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4007..913c&link_type=abstract

Proc. SPIE Vol. 4007, p. 913-924, Adaptive Optical Systems Technology, Peter L. Wizinowich; Ed.

Physics

Optics

4

Scientific paper

Practical guidelines are proposed for deconvolution of partially adaptive optics corrected images: from raw data to high photometric precision object restoration. Preliminary processing is discussed (detector calibration, background subtraction...). The deconvolution scheme itself is then presented. It takes into account the noise statistics in the image, the imprecise knowledge of the point spread function (PSF), and the available a priori information on the object (spatial structure, positivity...). This deconvolution scheme is first validated on simulated images of NAOS, the AO system of the VLT and then applied to astronomical images. In particular, an edge preserving regularization is tested on several solar system objects: Io, Uranus and Neptune.

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