Observation of sea-ice dynamics using synthetic aperture radar images: automated analysis

Author

Vesecky, John F. ; Samadani, Ramin ; Smith, Martha P. ; Daida, Jason M. ; Bracewell, Ronald N.

Author_Institution

Dept. of Electr. Eng., Stanford Univ., CA, USA

Volume

26

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

38

Lastpage

48

Abstract

Two techniques for automated sea-ice tracking, image pyramid area correlation (hierarchical correlation) and feature tracking, are described. Each technique is applied to a pair of Seasat SAR sea-ice images. The results compare well with each other and with manually tracked estimates of the ice velocity. The advantages and disadvantages of these automated methods are pointed out. Using these ice velocity field estimates it is possible to construct one sea-ice image from the other member of the pair. Comparing the reconstructed image with the observed image, errors in the estimated velocity field can be recognized and a useful probable error display created automatically to accompany ice velocity estimates. It is suggested that this error display may be useful in segmenting the sea ice observed into regions that move as rigid plates of significant ice velocity shear and distortion

Keywords

oceanographic techniques; radar applications; remote sensing; sea ice; Seasat SAR sea-ice images; automated sea-ice tracking; distortion; errors; feature tracking; ice velocity; image pyramid area correlation; remote sensing; rigid plates; sea-ice dynamics; shear; synthetic aperture radar images; techniques; Clouds; Displays; Image analysis; Image reconstruction; Radar imaging; Radar tracking; Remote sensing; Satellites; Sea ice; Synthetic aperture radar;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.2998

Filename

2998