Airborne SAR stereo restitution in a mountainous area of Costa Rica: first results

Author

Toutin, Thierry

Author_Institution

Canada Centre for Remote Sensing, Ottawa, Ont.

Volume

33

Issue

2

fYear

1995

fDate

3/1/1995 12:00:00 AM

Firstpage

500

Lastpage

504

Abstract

Presents a fully digital method for the stereo extraction of planimetric and altimetric features from digital airborne SAR data in stereoscopic mode. The method uses a photogrammetric approach. Image analysis is done with a digital stereo workstation (DVP) using a low-cost hardware (PC). To test the limits of the DVP system with actual data, a challenging airborne SAR stereopair was used from a mountainous area (2000 m) in the Cordillera Centrale (Costa Rica) from the SAREX-92 mission. Compared with a 1:50 000 topographic map, the first results show a planimetric accuracy of 20-35 m for well identifiable features and an altimetric accuracy of 40-50 m. These results have to be confirmed with more precise digital topographic data

Keywords

airborne radar; feature extraction; geodesy; geophysical signal processing; geophysical techniques; radar applications; radar imaging; radar signal processing; remote sensing by radar; stereo image processing; synthetic aperture radar; topography (Earth); Costa Rica; DVP feature extraction; airborne SAR; digital method; digital stereo workstation; geodesy; geophysical measurement technique; image analysis; land surface topography; mountain; mountainous area; photogrammetric approach; planimetric; radar imaging; radar remote sensing; signal processing; stereo extraction; stereo image processing; stereo restitution; stereopair; synthetic aperture radar; terrain mapping; Data mining; Equations; Feature extraction; Hardware; Image analysis; Mathematical model; Radar imaging; Spaceborne radar; Surfaces; Workstations;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.377950

Filename

377950