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An efficient approach to correspondences between multiple non-rigid parts

Tam, Gary K.L., Martin, Ralph Robert, Rosin, Paul L. ORCID: and Lai, Yukun ORCID: 2014. An efficient approach to correspondences between multiple non-rigid parts. Computer graphics forum 33 (5) , pp. 137-146. 10.1111/cgf.12439

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Identifying multiple deformable parts on meshes and establishing dense correspondences between them are tasks of fundamental importance to computer graphics, with applications to e.g. geometric edit propagation and texture transfer. Much research has considered establishing correspondences between non-rigid surfaces, but little work can both identify similar multiple deformable parts and handle partial shape correspondences. This paper addresses two related problems, treating them as a whole: (i) identifying similar deformable parts on a mesh, related by a non-rigid transformation to a given query part, and (ii) establishing dense point correspondences automatically between such parts. We show that simple and efficient techniques can be developed if we make the assumption that these parts locally undergo isometric deformation. Our insight is that similar deformable parts are suggested by large clusters of point correspondences that are isometrically consistent. Once such parts are identified, dense point correspondences can be obtained by an iterative propagation process. Our techniques are applicable to models with arbitrary topology. Various examples demonstrate the effectiveness of our techniques.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 30/10/14).
Publisher: Wiley
ISSN: 0167-7055
Funders: EPSRC
Date of First Compliant Deposit: 30 March 2016
Last Modified: 06 May 2023 08:33

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