Image processing for real-time correction of atmospheric turbulent distortions
P.A. Konyaev
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: optical-electronic systems, atmospheric turbulence, digital image processing, parallel computational algorithms
Abstract
Algorithms for real time two-dimensional digital image processing when observing on atmospheric paths are considered. A procedure for measuring the turbulence parameter directly during of observation is suggested. It can be applied both with the use of a reference object (a radial mire), and without it. An efficient high-speed correlation tracking algorithm with reference frame normalization was applied to correct the image jitter caused by the atmosphere. Blurred image restoration algorithms based on the inverse filterization of angular spatial frequencies are implemented with the use of parallel computing procedures from the Intel® MKL and IPP libraries. The results of computer simulation of digital images blur and its correction are presented, as well as examples of processing experimental video frames on real atmospheric paths.
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