Title :
2-D adaptive Volterra filter for 2-D nonlinear channel equalisation and image restoration
Author :
Lin, Jyun-Nan ; Unbehauen, R.
Author_Institution :
Lehrstuhl fur Allgemeine und Theor. Elektrotech., Erlangen Univ., Germany
Abstract :
A 2-D adaptive nonlinear filter, namely the 2-D adaptive Volterra filter, is developed with an LMS type of adaptation algorithm. This adaptive filter is used for equalising an unknown 2-D channel with some pointwise nonlinearity and restoring images degraded by this channel. Improvements over a 2-D adaptive linear equaliser are demonstrated by experimental results.
Keywords :
filtering and prediction theory; least squares approximations; picture processing; 2D adaptive Volterra filter; LMS type; adaptation algorithm; adaptive linear equaliser; image restoration; nonlinear channel equalisation; pointwise nonlinearity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920112
