H∞ deconvolution filter design and its application in image restoration

This paper addresses the design of an H_∞ deconvolution filter and its application to image restoration. The proposed H_∞ deconvolution filter has some advantages for image restoration in its capability of handling unknown boundary problems and spatially varying blurs. In this paper, the H_∞ filter is compared with the inverse Wiener filter and a regularized restoration method. The experimental results show that the H _∞ filter deals with the unknown boundary problem better than the Wiener filter. Compared with the regularization method, it gives a sharper restored image, especially, when the original image contains many details