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Remote Sens. 2018, 10(11), 1742; https://doi.org/10.3390/rs10111742

Exploiting SAR Tomography for Supervised Land-Cover Classification

1
Technische Universität Berlin, MAR6-5, Marchstr. 23, 10587 Berlin, Germany
2
European Space Agency, Largo Galileo Galilei 1, 00044 Frascati, Italy
*
Author to whom correspondence should be addressed.
Received: 30 August 2018 / Revised: 26 October 2018 / Accepted: 1 November 2018 / Published: 5 November 2018
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Abstract

In this paper, we provide the first in-depth evaluation of exploiting Tomographic Synthetic Aperture Radar (TomoSAR) for the task of supervised land-cover classification. Our main contribution is the design of specific TomoSAR features to reach this objective. In particular, we show that classification based on TomoSAR significantly outperforms PolSAR data provided relevant features are extracted from the tomograms. We also provide a comparison of classification results obtained from covariance matrices versus tomogram features as well as obtained by different reference methods, i.e., the traditional Wishart classifier and the more sophisticated Random Forest. Extensive qualitative and quantitative results are shown on a fully polarimetric and multi-baseline dataset from the E-SAR sensor from the German Aerospace Center (DLR). View Full-Text
Keywords: SAR tomography; land-cover classification; feature extraction; random forests SAR tomography; land-cover classification; feature extraction; random forests
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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D’Hondt, O.; Hänsch, R.; Wagener, N.; Hellwich, O. Exploiting SAR Tomography for Supervised Land-Cover Classification. Remote Sens. 2018, 10, 1742.

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