Article Dans Une Revue Computer Graphics Forum Année : 2021

Scalable Surface Reconstruction with Delaunay-Graph Neural Networks

Résumé

We introduce a novel learning-based, visibility-aware, surface reconstruction method for large-scale, defect-laden point clouds. Our approach can cope with the scale and variety of point cloud defects encountered in real-life Multi-View Stereo (MVS) acquisitions. Our method relies on a 3D Delaunay tetrahedralization whose cells are classified as inside or outside the surface by a graph neural network and an energy model solvable with a graph cut. Our model, making use of both local geometric attributes and line-of-sight visibility information, is able to learn a visibility model from a small amount of synthetic training data and generalizes to real-life acquisitions. Combining the efficiency of deep learning methods and the scalability of energy based models, our approach outperforms both learning and non learning-based reconstruction algorithms on two publicly available reconstruction benchmarks.

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hal-03312448 , version 1 (03-08-2021)

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Raphael Sulzer, Loic Landrieu, Renaud Marlet, Bruno Vallet. Scalable Surface Reconstruction with Delaunay-Graph Neural Networks. Computer Graphics Forum, 2021, Eurographics Symposium on Geometry Processing 2021, July 12 – 14, 2021, 40 (5), pp.157 - 167. ⟨10.1111/cgf.14364⟩. ⟨hal-03312448⟩
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