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Journal articles
Urban Surface Reconstruction in SAR Tomography by Graph-Cuts
Abstract : SAR (Synthetic Aperture Radar) tomography reconstructs 3-D volumes from stacks of SAR images. High resolution satellites such as TerraSAR-X provide images that can be combined to produce 3-D models. In urban areas, sparsity priors are generally enforced during the tomographic inversion process in order to retrieve the location of scatterers seen within a given radar resolution cell. However, such priors often miss parts of the urban surfaces. Those missing parts are typically regions of flat areas such as ground or rooftops. This paper introduces a surface segmentation algorithm based on the computation of the optimal cut in a flow network. This seg-mentation process can be included within the 3-D reconstruction framework in order to improve the recovery of urban surfaces. Illustrations on a TerraSAR-X tomographic dataset demonstrate the potential of the approach to produce a 3-D model of urban surfaces such as ground, façades and rooftops.
Cited literature [17 references]
https://hal.archives-ouvertes.fr/hal-01873673
Contributor : Clément Rambour <>
Submitted on : Friday, November 22, 2019 - 3:26:04 PM
Last modification on : Tuesday, March 16, 2021 - 3:40:02 PM
Contributor : Clément Rambour <>
Submitted on : Friday, November 22, 2019 - 3:26:04 PM
Last modification on : Tuesday, March 16, 2021 - 3:40:02 PM
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cviu_2019 (1).pdf
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