Title: Symmetric reconstruction algorithms for incomplete 3D models

Authors: Lilit Yenokyan, Armen Zakarian, Pravansu Mohanty, Vahram Avagyan

Addresses: Department of Industrial and Manufacturing Systems Engineering, University of Michigan – Dearborn, Dearborn, MI 48128, USA. ' Department of Industrial and Manufacturing Systems Engineering, University of Michigan – Dearborn, Dearborn, MI 48128, USA. ' Department of Mechanical Engineering, University of Michigan – Dearborn, Dearborn, MI 48128, USA. ' Lockheed Martin Corporation, Bethesda, MD 20817, USA

Abstract: this paper, a new approach and algorithms for 3D model reconstruction, based on the model symmetry, are presented. After the incomplete 3D model is introduced to the system, symmetry type and model parameters are established, an algorithm is developed for model alignment. Symmetry analysis algorithms are proposed for collecting information on the asymmetric/missing sections of the aligned model on a layer-by-layer basis. The outputs of these algorithms are used to generate the triangular mesh of missing sections of the model. The methodology developed in this paper is illustrated with the 3D model reconstruction examples.

Keywords: 3D model reconstruction; model symmetry; symmetric reconstruction; CADCAM; symmetry analysis; 3D geometry modelling; model alignment; 3D mesh generation; 3D model slicing; planar symmetry; axis symmetry.

DOI: 10.1504/IJCAT.2009.023620

International Journal of Computer Applications in Technology, 2009 Vol.34 No.2, pp.143 - 151

Available online: 03 Mar 2009 *

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