A GENERAL FORMULATION FOR ITERATIVE RESTORATION METHODS

Information theory-based techniques for signal or image restoration an d resolution enhancement are now considered a viable alternative to ot her popular techniques, In this correspondence, we present a general i terative mapping derived using an information theoretic criterion of o ptimality, A mathematical structure is defined followed by an analysis of the mapping, based on this structure, The convergence of the mappi ng is considered both in the general formulation and for a particular example, Some popular techniques are shown to be special cases of this general mapping.