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Georeferencing, feature extraction and change detection in Harbour and city areas using high-resolution satelite SAR images acquired from multiple sensors

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4 Author(s)
Weydahl, D.J. ; Land & Airsystems Div., Norwegian Defence Res. Establ., Kjeller, Norway ; Eldhuset, K. ; Dick, O. ; Olsen, B.L.

The quality and usefulness of feature extraction and change detection will be governed by the geoposition accuracy of the SAR image. We show results from satellite SAR image pixel geolocation accuracy using deployed radar corner reflectors as reference targets. The best accuracy (latitude, longitude) is below one meter. We have also developed algorithms that are using stereo acquisitions to obtain decimeter geolocation accuracies in XYZ of the high-resolution satellite SAR images. We demonstrate how high-resolution satellite SAR image modes can be used to extract man-made features in harbors and city areas.

Published in:

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Date of Conference:

22-27 July 2012