Restoration of turbulence degraded images using the Knox and Thompsonalgorithm.

Details Restoration of turbulence degraded images using the Knox and Thompsonalgorithm. Restoration of turbulence degraded images using the Knox and Thompsonalgorithm.

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..627..829s&link_type=abstract

Proc. SPIE Int. Soc. Opt. Eng., Vol. 627, Part 2, p. 829 - 837

Physics

Image Reconstruction, Speckle Interferometry

Scientific paper

The author describes an algorithm which permits recovery of a diffraction limited image from a set of turbulence degraded images. This algorithm, first proposed by Knox and Thompson, can be considered as an extension of the speckle interferometry technique. Turbulence dependence and photon noise limitations are considered and difficulties arising from phase dislocations in the Fourier transform are discussed. The effectiveness of the algorithm has been demonstrated for extended objects. Requirements for a real-time processing system for present and future telescopes are discussed.

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