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Filling holes in meshes using a mechanical model to simulate the curvature variation minimization

Article dans une revue avec comité de lecture
Auteur
MORARU, George
ccPERNOT, Jean-Philippe
199402 Laboratoire des Sciences de l'Information et des Systèmes [LSIS]
ccVERON, Philippe

URI
http://hdl.handle.net/10985/6594
DOI
10.1016/j.cag.2006.08.020
Date
2006

Résumé

The presence of holes in a triangle mesh is classically ascribed to the de ciencies of the point cloud acquired from a physical object to be reverse engineered. This lack of information results from both the scanning process and the object complexity. The consequences are simply not acceptable in many application domains (e.g. visualisation, nite element analysis or STL prototyping). This paper addresses the way these holes can be lled in while minimizin the curvature variation between the surrounding and inserted meshes. The curvature variation is simulated by the variation between external forces applied to the nodes of a linear mechanical model coupled to the meshes. The functional to be minimized is quadratic and a set of geometric constraints can be added to further shape the inserted mesh. In addition, a complete cleaning toolbox is proposed to remove degenerated and badly oriented triangles resulting from the scanning process.

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  • Laboratoire d’Ingénierie des Systèmes Physiques Et Numériques (LISPEN)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Repairing triangle meshes built from scanned point cloud 
    Article dans une revue avec comité de lecture
    MORARU, George; ccPERNOT, Jean-Philippe; ccVERON, Philippe (Taylor & Francis, 2007)
    The Reverse Engineering process consists of a succession of operations that aim at creating a digital representation of a physical model. The reconstructed geometric model is often a triangle mesh built from a point cloud ...
  • Sharp edge filleting of enriched FE meshes 
    Communication avec acte
    GIANNINI, Franca; MIKCHEVITECH, Alexei; FALCIDIENO, Bianca; MARC, Raphael; ccPERNOT, Jean-Philippe; ccLOU, Ruding; ccVERON, Philippe (Delft University of Technology, 2012)
    Nowadays, the use of Computer-Aided Engineering (CAE) system in product design has become mainstream. However, the adopted process from Computer-Aided Design (CAD) product definition to numerical simulation could be further ...
  • Towards recovery of complex shapes in meshes using digital images for reverse engineering applications 
    Article dans une revue avec comité de lecture
    PANCHETTI, Minica; ccPERNOT, Jean-Philippe; ccVERON, Philippe (Elsevier, 2010)
    When an object owns complex shapes, or when its outer surfaces are simply inaccessible, some of its parts may not be captured during its reverse engineering. These deficiencies in the point cloud result in a set of holes ...
  • Filleting sharp edges of multi-partitioned volume finite element meshes 
    Article dans une revue avec comité de lecture
    GIANNINI, Franca; FALCIDIENO, Bianca; ccPERNOT, Jean-Philippe; ccLOU, Ruding; ccVERON, Philippe (Emerald, 2015)
    Purpose – The purpose of this paper is to set up a new framework to enable direct modifications of volume meshes enriched with semantic information associated to multiple partitions. An instance of filleting operator is ...
  • Towards a new approach for the description of shapes from multimodal data 
    Communication avec acte
    LI, Zongcheng; GIANNINI, Franca; FALCIDIENO, Bianca; ccPERNOT, Jean-Philippe; ccVERON, Philippe (Proceedings of the 4th IEEE Int. Conference on Cognitive Infocommunications (CogInfoCom'13), 2013)
    The construction of a Virtual Environments (VE) requires a long iterative modeling and modification process. Depending on the final purposes, many actors can be involved both in the early conception and in the detailed ...

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