Title :
Modelling and restoration of images distorted by atmospheric turbulence
Author :
van der Elst, H. ; van Schalkwyk, J.J.D.
Author_Institution :
Pretoria Univ., South Africa
fDate :
9/11/1992 12:00:00 AM
Abstract :
This paper investigates images distorted by turbulence and additive detection noise. A series of short-exposure images of the object as well as the long term autocorrelation function of the optical transfer function are assumed to be known. The authors are investigating the use of speckle interferometer techniques to obtain the Fourier modulus and the Knox-Thompson method to obtain the phase of extended objects. Modelling examples are given
Keywords :
atmospheric light propagation; atmospheric turbulence; image reconstruction; optical correlation; optical transfer function; speckle; Fourier modulus; Knox-Thompson method; additive detection noise; atmospheric turbulence; image modelling; image restoration; long term autocorrelation function; optical transfer function; speckle interferometer techniques; Adaptive optics; Additive noise; Atmospheric modeling; Autocorrelation; Image restoration; Optical distortion; Optical interferometry; Optical noise; Speckle; Transfer functions;
Conference_Titel :
Communications and Signal Processing, 1992. COMSIG '92., Proceedings of the 1992 South African Symposium on
Conference_Location :
Cape Town
Print_ISBN :
0-7803-0807-7
DOI :
10.1109/COMSIG.1992.274312
