On nonparametric edge detection in multilook SAR images

Author

Beauchemin, Mario ; Thomson, Keith P B ; Edwards, Geoffrey

Author_Institution

Centre de Recherche en Geomatique, Laval Univ., Que., Canada

Volume

36

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

1826

Lastpage

1829

Abstract

Nonparametric alternatives based on the Wilcoxon-Mann-Whitney statistics are evaluated for edge detection in synthetic aperture radar (SAR) images. First, the power of the nonparametric test is compared to that of the ratio-of-averages detector. Then, a nonparametric change-point test is evaluated to identify the true edge position inside a fixed window

Keywords

edge detection; geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; synthetic aperture radar; SAR; SAR image; Wilcoxon-Mann-Whitney statistics; change-point test; geophysical measurement technique; image processing; image sequence; land surface; multilook image; nonparametric edge detection; nonparametric test; radar imaging; radar remote sensing; ratio-of-averages; synthetic aperture radar; terrain mapping; true edge position; Councils; Detectors; Image edge detection; Probability distribution; Radar detection; Signal to noise ratio; Statistical distributions; Statistics; Synthetic aperture radar; Testing;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.718650

Filename

718650