A. Concetti et L. Jetto, 2-DIMENSIONAL RECURSIVE FILTERING ALGORITHM WITH EDGE-PRESERVING PROPERTIES AND REDUCED NUMERICAL COMPLEXITY, IEEE transactions on circuits and systems. 2, Analog and digital signal processing, 44(7), 1997, pp. 587-591
The filtering problem for noisy nonhomogeneous images is considered, A
semicausal recursive filter with edge information is proposed, The fi
lter is obtained as a combination of a one-dimensional (1-D) fixed-int
erval smoother and of a 1-D Karlman predictor, and involves a modest c
omputational burden, Experimental results show the effectiveness of th
e new filtering scheme.