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Approches structurelles pour la tomographie SAR haute résolution en milieu urbain dense

Abstract : SAR tomography consists in exploiting multiple images from the same area acquired from a slightly different angle to retrieve the 3-D distribution of the complex reflectivity on the ground. As the transmitted waves are coherent, the desired spatial information (along with the vertical axis) is coded in the phase of the pixels. Many methods have been proposed to retrieve this information in the past years. However, the natural redundancies of the scene are generally not exploited to improve the tomographic estimation step. This Ph.D. presents new approaches to regularize the estimated reflectivity density obtained through SAR tomography by exploiting the urban geometrical structures.
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Submitted on : Monday, August 5, 2019 - 1:13:10 PM
Last modification on : Monday, October 12, 2020 - 1:35:15 PM
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  • HAL Id : tel-02263626, version 1

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Clément Rambour. Approches structurelles pour la tomographie SAR haute résolution en milieu urbain dense. Traitement du signal et de l'image [eess.SP]. Université Paris-Saclay, 2019. Français. ⟨NNT : 2019SACLT007⟩. ⟨tel-02263626⟩

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