Title :
Edge extraction by a class of second-order nonlinear filters
Author :
Ramponi, Giovanni
Author_Institution :
University of Trieste, Dipartimento di Electtronica Elettrotecnica Informatica, Trieste, Italy
Abstract :
The application of a class of nonlinear 2-D digital filters, based on the discrete Volterra series, as edge detectors is considered. Independence on edge orientation is achieved by the use of symmetry conditions on the coefficients. Two examples are presented.
Keywords :
picture processing; two-dimensional digital filters; 2D type; coefficients; digital filters; discrete Volterra series; edge detectors; image edge extraction; multidimensional signal processing; picture processing; second-order nonlinear filters; symmetry conditions; two-dimensional type;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860328
