Technical Section: Ellipsoidal-blob approximation of 3D models and its applications

Authors:
Shengjun Liu;Xiaogang Jin;Charlie C. L. Wang;Kin-chuen Hui
Affiliations:
State Key Lab of CAD&CG, Zhejiang University, Hangzhou, 310027, PR China and Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, PR China;State Key Lab of CAD&CG, Zhejiang University, Hangzhou, 310027, PR China;Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, PR China;Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, PR China
Venue:
Computers and Graphics
Year:
2007

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Abstract

This paper presents a technique for automatically approximating a given mesh model with an ellipsoidal blobby model. Firstly, an ellipsoid decomposition algorithm is introduced to approximate given models by ellipsoids. After that, a blobby implicit surface employing ellipsoidal blobs is modelled to fit the sampling points on the given mesh. Finally, the reconstructed ellipsoidal blobby model is applied in two applications: the geometry data reduction and the target shape controlled cloud animation.