Comparison of segmentation methodologies applied to ERS-1 SAR images

Author

Caves, R.G. ; Quegan, S. ; White, R.G. ; Cook, R.

Author_Institution

Centre for Earth Obs. Sci., Sheffield Univ., UK

Volume

3

fYear

1994

fDate

8-12 Aug 1994

Firstpage

1618

Abstract

The performance of three segmentation methods, developed for high resolution airborne synthetic aperture radar (SAR) data, on lower resolution spaceborne data is assessed using two ERS-1 images. Methods based on a cartoon model for the underlying image are shown to be able to successfully segment regions bounded by abrupt edges, but to be unable to represent gradual changes in intensity and linear features. These problem are overcome at the expense of greatly increased cpu time using MAP reconstruction which models the underlying image as a semi-continuous surface

Keywords

geophysical signal processing; geophysical techniques; image classification; image segmentation; radar applications; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; ERS-1; MAP reconstruction; SAR imagery; abrupt edge; airborne synthetic aperture radar; cartoon model; geophysical measurement technique; gradual change; high resolution; image classification; image processing; image segmentation; land surface terrain mapping; linear feature; radar remote sensing; semi-continuous surface; spaceborne; Image edge detection; Image reconstruction; Image resolution; Image segmentation; Layout; Merging; Robust stability; Simulated annealing; Spaceborne radar; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International

Conference_Location

Pasadena, CA

Print_ISBN

0-7803-1497-2

Type

conf

DOI

10.1109/IGARSS.1994.399517

Filename

399517