Post-processing for anisoplanatic AO corrected images

Thierry Fusco; Jean-Marc Conan; Laurent M. Mugnier; Vincent Michau; Gerard Rousset

doi:10.1117/12.409292

17 November 2000 Post-processing for anisoplanatic AO corrected images

Thierry Fusco, Jean-Marc Conan, Laurent M. Mugnier, Vincent Michau, Gerard Rousset

Proceedings Volume 4125, Propagation and Imaging through the Atmosphere IV; (2000) https://doi.org/10.1117/12.409292
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

Thierry Fusco, Jean-Marc Conan, Laurent M. Mugnier, Vincent Michau, and Gerard Rousset "Post-processing for anisoplanatic AO corrected images", Proc. SPIE 4125, Propagation and Imaging through the Atmosphere IV, (17 November 2000); https://doi.org/10.1117/12.409292

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