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High Accuracy Laser Scanned View Registration Method for Reverse Engineering Using a CMM Generated CAD Model

[+] Author Affiliations
Jafar Jamshidi, Antony Roy Mileham, Geraint Wyn Owen

University of Bath, Bath, UK

Paper No. DETC2006-99581, pp. 241-248; 8 pages
  • ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 1: 32nd Design Automation Conference, Parts A and B
  • Philadelphia, Pennsylvania, USA, September 10–13, 2006
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4255-X | eISBN: 0-7918-3784-X
  • Copyright © 2006 by ASME


Complete CAD modelling by 3D digitizers comprises of full coverage scanning of the part from a number of views in the Reverse Engineering process. Different scanned views are required to be registered into a cohesive coordinate system to generate a practical CAD model. In this paper a high accuracy registration method is introduced in which the preregistered views, obtained by a conventional registration method are used as a base for fine registration. This is based on the relationships of the scanned views in the Laser Scanned model and the scanned features created by the Coordinate Measurement Machine. This method is most suitable for Reverse Engineering of precision parts with accurate and standard machined geometric features and complex but less accurate casting features. Experimental results of the method application on two components are presented.

Copyright © 2006 by ASME



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