Title :
Edge Detectors Based on Nonlinear Filters
Author :
Pitas, I. ; Venetsanopoulos, A.N.
Author_Institution :
Department of Electrical Engineering, University of Thessaloniki, Thessaloniki, Greece.
fDate :
7/1/1986 12:00:00 AM
Abstract :
A class of edge detectors is proposed which is obtained from the difference of the outputs of two nonlinear filters. The nonlinear filters used are based on nonlinear means (which contain homomorphic filters) or order statistic (which contain median filters). The performance of these edge detectors in the presence of noise is evaluated and is compared to the performance of well established edge detectors. Their computational requirements are described and some examples are presented.
Keywords :
Application software; Data processing; Data structures; Detectors; Geographic Information Systems; Information systems; Nonlinear filters; Notice of Violation; Production; Relational databases; Contraharmonic edge detector; Sobel operator; dispersion edge detector; edge detection; nonlinear filters; nonlinear mean filters; order statistic filters; range edge detector;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
DOI :
10.1109/TPAMI.1986.4767819
