Title :
Motion blurred image deconvolution with anisotropic regularization
Author :
Benzarti, Faouzi ; Braiek, E. ; Amiri, Hamid
Author_Institution :
Laboratoire de Syst. et Traitement de Signal, Ecole Nat. d´´Ingenieurs de Tunis, Tunisia
Abstract :
Image restoration or deconvolution is an evolving research topic in the area of image processing and computer vision. It refers to the task of recovering a good estimate of the true image from a degraded observation. In this paper, we consider the problem of restoring an image that has been blurred by a motion blur, which occurs in many practical applications. The anisotropic diffusion is used in the blind deconvolution process to regularize the solution. The key idea behind the anisotropic diffusion is to incorporate an adaptative smoothness constraint in the deconvolution process. That is, the smooth is encouraged in a homogeneous region and discourage across boundaries, in order to preserve the natural edge of the image. The estimation of the true image is solution to the Euler-Lagrange equation which is solved by an iterative scheme. The performance of this approach is then compared to some classical methods.
Keywords :
deconvolution; image motion analysis; image restoration; partial differential equations; Euler-Lagrange equation; anisotropic diffusion; anisotropic regularization; blind deconvolution; image deconvolution; image restoration; motion blur; Anisotropic magnetoresistance; Application software; Computer vision; Deconvolution; Degradation; Image processing; Image restoration; Lagrangian functions; Signal processing; Smoothing methods;
Conference_Titel :
Control, Communications and Signal Processing, 2004. First International Symposium on
Print_ISBN :
0-7803-8379-6
DOI :
10.1109/ISCCSP.2004.1296324