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Communication Dans Un Congrès Année : 2020

Moving objects aware sensor mesh fusion for indoor reconstruction from a couple of 2D lidar scans

Résumé

Indoor mapping attracts more attention with the development of 2D and 3D camera and Lidar sensor. Lidar systems can provide a very high resolution and accurate point cloud. When aiming to reconstruct the static part of the scene, moving objects should be detected and removed which can prove challenging. This paper proposes a generic method to merge meshes produced from Lidar data that allows to tackle the issues of moving objects removal and static scene reconstruction at once. The method is adapted to a platform collecting point cloud from two Lidar sensors with different scan direction, which will result in different quality. Firstly, a mesh is efficiently produced from each sensor by exploiting its natural topology. Secondly, a visibility analysis is performed to handle occlusions (due to varying viewpoints) and remove moving objects. Then, a boolean optimization allows to select which triangles should be removed from each mesh. Finally, a stitching method is used to connect the selected mesh pieces. Our method is demonstrated on a Navvis M3 (2D laser ranger system) dataset and compared with Poisson and Delaunay based reconstruction methods.
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Dates et versions

hal-02916258 , version 1 (17-08-2020)

Identifiants

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Teng Wu, Bruno Vallet, Cédric Demonceaux, Jingbin Liu. Moving objects aware sensor mesh fusion for indoor reconstruction from a couple of 2D lidar scans. XXIV ISPRS Congress 2020, International Society for Photogrammetry and Remote Sensing, ISPRS, Aug 2020, Nice (en ligne), France. pp.507-514, ⟨10.5194/isprs-archives-XLIII-B2-2020-507-2020⟩. ⟨hal-02916258⟩
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