DocumentCode
1124267
Title
Edge Detectors Based on Nonlinear Filters
Author
Pitas, I. ; Venetsanopoulos, A.N.
Author_Institution
Department of Electrical Engineering, University of Thessaloniki, Thessaloniki, Greece.
Issue
4
fYear
1986
fDate
7/1/1986 12:00:00 AM
Firstpage
538
Lastpage
550
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;
fLanguage
English
Journal_Title
Pattern Analysis and Machine Intelligence, IEEE Transactions on
Publisher
ieee
ISSN
0162-8828
Type
jour
DOI
10.1109/TPAMI.1986.4767819
Filename
4767819
Link To Document