Recursive Two Dimensional Adaptive Digital Filter

Document Type : Original Article

Author

Electrical and Computer Engineering Dept., Higher Technological Institute, tenth of Ramadan city.

Abstract

In this paper, a new scheme of recursive two -dimensional (2-D) adaptive digital filter is presented. It consists of a forward section, a feedback section, and decision block. Each section is realized as conventional non-recursive adaptive filter. Either 2 -D adaptive LMS or sign function algorithm can be used for adaptation. The proposed recursive filter functions as a 2-D adaptive line enhancer (ALE) for images contaminated with noise. Its performance is compared with that of Hadhoud [1].

Keywords