DocumentCode :
3641687
Title :
Blind image restoration by employing curve fitting to the edge spread function
Author :
Ziya Gürkan Figen;Naci Saldı
Author_Institution :
fYear :
2011
fDate :
4/1/2011 12:00:00 AM
Firstpage :
718
Lastpage :
721
Abstract :
In this work, results for blind image restoration performed on the images of a target situated at a long range are given. The images are recorded by two cameras: one visible and one infrared camera. Visible and infrared images are dominantly degraded by the atmospheric factors (turbulence and aerosol) and the defocus aberration of the optical system, respectively. A curve is fitted to the edge spread function, using this curve the derivative and then the Fourier transform is obtained for determining the modulation transfer function (MTF). Later on, restoration is performed on the images using a Wiener filter constructed based on this MTF. Due to the curve-fitting performed on the edge spread function, noise which might occur when taking the derivative is prevented. To our knowledge, this work is the first one reported in the literature which performs image restoration using the proposed method on dominantly atmospherically blurred images.
Keywords :
"Aerosols","Image restoration","Conferences","Modulation","Atmospheric measurements","Presses"
Publisher :
ieee
Conference_Titel :
Signal Processing and Communications Applications (SIU), 2011 IEEE 19th Conference on
ISSN :
2165-0608
Print_ISBN :
978-1-4577-0462-8
Type :
conf
DOI :
10.1109/SIU.2011.5929751
Filename :
5929751
Link To Document :
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