Géodétection des réseaux enterrés par imagerie radar

Abstract : The thesis objective is to improve the different processing in order to make the data acquired by ground penetrating radar (B-scan) more understandable for the operators. Consequently, it will facilitate the pipe localisation. More particularly, we wish to highlight the hyperbolas in the B-scan because they point out the presence of a pipe. First of all, we are interested in removing all the useless information which might hide the hyperbolas. We proposed a filtering method removing unwanted reflections and noise. Then, we worked on an automatic hyperbola detection method and an estimation of their mathematical functions in quasi real time. Finally, we proposed a source separation method to distinguish the unwanted reflections from the hyperbolas with a minimal impact on them. This last work opens interesting perspectives in filtering, hyperbolas enhancement and hyperbola detection.
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Submitted on : Monday, April 16, 2018 - 6:26:06 PM
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  • HAL Id : tel-01767990, version 1

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Guillaume Terrasse. Géodétection des réseaux enterrés par imagerie radar. Traitement du signal et de l'image [eess.SP]. Télécom ParisTech, 2017. Français. ⟨NNT : 2017ENST0015⟩. ⟨tel-01767990⟩

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