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Proceedings Paper

From CAD to geons: a simplified data representation for rapid indexing of large CAD models database
Author(s): Normand Gregoire; Richard Lepage; Tanneguy Redarce
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Paper Abstract

Automated inspection of manufactured parts is a challenging problem and a crucial issue for any production process. When concerned with dimensional tolerancing, CAD models are a highly desirable reference, as they describe precisely the parts under inspection. However, the time needed to identify the right model in a large CAD database is far too long for on-line inspection because of the huge amount of data to be analyzed. In this paper, we propose to use a vision-based representation for the parts which is much less accurate than CAD descriptions, but offers very low storage requirements, thus speeding up the identification stage. We discuss the inspection system proposed and report our preliminary results in converting CAD models to their simplified representation.

Paper Details

Date Published: 8 March 1999
PDF: 8 pages
Proc. SPIE 3652, Machine Vision Applications in Industrial Inspection VII, (8 March 1999); doi: 10.1117/12.341141
Show Author Affiliations
Normand Gregoire, Ecole de Technologie Superieure (Canada)
Richard Lepage, Ecole de Technologie Superieure (Canada)
Tanneguy Redarce, Insitut National des Sciences Appliquees (France)


Published in SPIE Proceedings Vol. 3652:
Machine Vision Applications in Industrial Inspection VII
Kenneth W. Tobin Jr.; Ning S. Chang, Editor(s)

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