A novel anisotropic local polynomial estimator based on directional multiscale optimizations
Alessandro Foi, Vladimir Y. Katkovnik, Karen Egiazarian, Jaakko T. Astola · 2004
A novel anisotropic estimator for image restoration is presented. The proposed approach originates from the geometric idea of a starshaped estimation neighborhood topology. In this perspective, an optimal adaptation is achieved by selecting in a pointwise fashion the ideal starshaped neighborhood for the estimation point. In practice, this neighborhood is approximated by a sectorial structure composed by conical sectors of adaptive size. Special varying-scale kernels, supported on these sectors, are exploited in order to bring the original geometrical problem to a practical multiscale optimization. It is proposed to use this...