BIASUTTI, Pierre; BUGEAU, Aurélie; AUJOL, Jean-François; BRÉDIF, Mathieu

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BIASUTTI, Pierre
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

BUGEAU, Aurélie
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

AUJOL, Jean-François
Institut de Mathématiques de Bordeaux [IMB]

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International Conference on Computer Vision Theory and Applications (VISAPP), 2019-02-25, Prague.

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Estimating visibility in point clouds has many applications such as visualization, surface reconstruction and scene analysis through fusion of LiDAR point clouds and images. However, most current works rely on methods that require strong assumptions on the point cloud density, which are not valid for LiDAR point clouds acquired from mobile mapping systems, leading to low quality of point visibility estimations. This work presents a novel approach for the estimation of the visibility of a point cloud from a viewpoint. The method is designed to be fully automatic and it makes no assumption on the point cloud density. The visibility of each point is estimated by considering its screen-space neighborhood from the given viewpoint. Our resultsshow that our approach succeeds better in estimating the visibility on real-world data acquired using LiDAR scanners. We evaluate our approach by comparing its results to a new manually annotated dataset, which we make available online.< Réduire

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benchmark

visibility

3D point cloud

visualization

LiDAR

dataset

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Visibility estimation in point clouds with variable density

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