Properties of energy edge detectors

Author

Kube, Paul

Author_Institution

Dept. of Comput. Sci. & Eng., California Univ., San Diego, La Jolla, CA, USA

fYear

1992

fDate

15-18 Jun 1992

Firstpage

586

Lastpage

591

Abstract

The author introduces a framework for investigating the properties of energy edge detectors and uses it to derive some results of interest. He shows a necessary condition on the form of constituent linear filters in quadratic detectors, subject to some conditions, and demonstrates some limitations of such detectors. It is shown that no quadratic detector can detect an edge at 0 for both a sinewave and a cosine wave, which has implications for detecting narrowband edges with spatially local filters. It is also shown that the scale-space behavior of energy detectors is not well-behaved, in that it contains bifurcations as scale increases, i.e. new edges can be created as the image is smoothed

Keywords

image segmentation; pattern recognition; bifurcations; constituent linear filters; cosine wave; energy edge detectors properties; necessary condition; quadratic detectors; scale-space behavior; sinewave; spatially local filters; Computer science; Computer vision; Convolution; Detectors; Ear; Image edge detection; Nonlinear filters; Power engineering and energy; Signal detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Vision and Pattern Recognition, 1992. Proceedings CVPR '92., 1992 IEEE Computer Society Conference on

Conference_Location

Champaign, IL

ISSN

1063-6919

Print_ISBN

0-8186-2855-3

Type

conf

DOI

10.1109/CVPR.1992.223131

Filename

223131