Local topological beautification of reverse engineered models

Gao, C. H., Langbein, Frank Curd ORCID: https://orcid.org/0000-0002-3379-0323, Marshall, Andrew David ORCID: https://orcid.org/0000-0003-2789-1395 and Martin, Ralph Robert 2004. Local topological beautification of reverse engineered models. Computer-Aided Design 36 (13) , pp. 1337-1355. 10.1016/j.cad.2004.02.004

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Abstract

Boundary representation models reconstructed from 3D range data suffer from various inaccuracies caused by noise in the data and by numerical errors in the model building software. The quality of such models can be improved in a beautification step, where geometric regularities need to be detected and imposed on the model, and defects requiring topological change need to be corrected. This paper considers changes to the topology such as the removal of short edges, small faces and sliver faces, filling of holes in the surface of the model (arising due to missing data), adjusting pinched faces, etc. A practical algorithm for detecting and correcting such problems is presented. Analysis of the algorithm and experimental results show that the algorithm is able to quickly provide the desired changes. Most of the time required for topological beautification is spent on adjusting the geometry to agree with the new topology.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Computer Science & Informatics
Subjects:	Q Science > QA Mathematics Q Science > QA Mathematics > QA75 Electronic computers. Computer science T Technology > T Technology (General)
Uncontrolled Keywords:	Beautification ; Healing ; Topological modification ; Reverse engineering ; Geometric modelling
Additional Information:	NOTICE: this is the author’s version of a work that was accepted for publication in Computer-aided Design. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computer-aided Design, [VOL 36, ISSUE 13, (2004)] 10.1016/j.cad.2004.02.004 PDF uploaded in accordance with publisher's policy http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy [accessed 10/12/2014]
Publisher:	Elsevier
ISSN:	0010-4485
Date of First Compliant Deposit:	30 March 2016
Last Modified:	16 Nov 2024 22:30
URI:	https://orca.cardiff.ac.uk/id/eprint/31747

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