Journal of System Simulation ›› 2017, Vol. 29 ›› Issue (11): 2684-2692.doi: 10.16182/j.issn1004731x.joss.201711013

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Surface Reconstruction of Point Cloud Based on Geometric Structure

Yang Zhenfa1,2, Wan Gang2, Cao Xuefeng2, Li feng2, Xie Lixiang2   

  1. Information Engineering University, Zhengzhou 450001, China
  • Received:2016-05-31 Published:2020-06-05

Abstract: To solve the problems that the existing noise in dense point cloud generated from sequential images dense matching affects the accuracy, and geometric structure such as flat exists in urban scenes, a surface reconstruction method of dense point cloud based on geometric structure is proposed in this paper. RANSAC algorithm is applied to extract planar structure. The original points were structured into planar points, crease points of two planes intersecting, corner points of three or more planes intersecting and clutter points. Then the structured point cloud is divided into tetrahedron by 3D Delaunay, improving the penalty term of min-cut energy function by the triangular patches consisted by the four structured points to extract surface of the 3D Delaunay tetrahedron. The experiment results show that, compared with several classical methods and business software, the proposed method can reconstruct a real 3D scene and can recovery the scene geometry structure of plane.

Key words: sequential images, dense point cloud, surface reconstruction, 3D Delaunay partition, min-cut

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