DocumentCode
1984908
Title
Landweber image restoration with adaptive step-size
Author
Bilcu, Radu Ciprian ; Trimeche, Mejdi ; Alenius, Sakari ; Vehvilainen, Markku
Author_Institution
Multimedia Technol. Lab., Nokia Res. Center, Helsinki
fYear
2007
fDate
12-15 Feb. 2007
Firstpage
1
Lastpage
4
Abstract
The Landweber algorithm is probably one of the simplest iterative method for image restoration which makes it a good choice for practical implementations. In this paper, we introduce a novel Landweber method that uses an adaptive step-size to improve the convergence speed and ensure stability. We review the convergence behavior of the Landweber algorithm and we introduce an enhanced method which we compare with an existing approach that also uses time-varying step-size.
Keywords
convergence; image restoration; iterative methods; Landweber image restoration; adaptive step-size; convergence speed improvement; iterative methods; time-varying step-size; Additive noise; Convergence; Degradation; Image restoration; Iterative algorithms; Iterative methods; Optical distortion; Optical filters; Optical noise; Stability;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on
Conference_Location
Sharjah
Print_ISBN
978-1-4244-0778-1
Electronic_ISBN
978-1-4244-1779-8
Type
conf
DOI
10.1109/ISSPA.2007.4555321
Filename
4555321
Link To Document