A modified two dimensional adaptive digital filter

الملخص EN

In this paper, a new scheme of recursive two-dimensional (2D) adaptive digital filter is presented.

It consists of a forward section, a feedback section, and decision block.

A little complexity increase from [10] is used by adding adaptive quantizer to predictor error.

Each section is realized as conventional non-recursive adaptive filter.

Either 2D adaptive LMS or sign function algorithm can be used for adaptation.

The proposed recursive filter operates as a 2D adaptive line enhancer (ALE) for images contaminated with noise.

Its performance is compared with that given in [1].