Restoration Of Turbulence Degraded Images Using The Knox And Thompson Algorithm

Alain Seve

doi:10.1117/12.968164

13 October 1986 Restoration Of Turbulence Degraded Images Using The Knox And Thompson Algorithm

Alain Seve

Proceedings Volume 0627, Instrumentation in Astronomy VI; (1986) https://doi.org/10.1117/12.968164
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

Abstract

In this paper, we describe 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. Reconstructions for test patterns degraded in a laboratory turbulence simulation facility are presented. Requirements for a real-time processing system for present and future telescopes are discussed.

Citation Download Citation

Alain Seve "Restoration Of Turbulence Degraded Images Using The Knox And Thompson Algorithm", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968164

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