Title :
Robust edge-preserving image restoration in the presence of non-Gaussian noise
Author :
Voloshynovskiy, S.V. ; Allen, A.R. ; Hrytskiv, Z.D.
Author_Institution :
Fac. of Comput. Sci., Geneva Univ., Switzerland
Abstract :
An approach to image restoration is presented which combines the properties of classical regularised iterative algorithms and M-estimation. The method is based on a penalised maximum likelihood estimation incorporating a generalised robust objective function which takes into account non-Gaussian noise and edge-preserving image priors. Results are presented which demonstrate the effectiveness of the method with low-resolution noisy images of simulated landmines.
Keywords :
edge detection; image restoration; iterative methods; maximum likelihood estimation; random noise; M-estimation; edge-preserving image restoration; iterative algorithm; landmine detection; maximum likelihood estimation; nonGaussian noise; robust objective function;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001399