Wrap-around B-spline Surface Fitting to Digitized Data With Applications to Reverse Engineering
Author:
Weir D. J.1, Milroy M. J.1, Bradley C.1, Vickers G. W.1
Affiliation:
1. Department of Mechanical Engineering, University of Victoria, P.O. Box 3055 Victoria, B.C., V8W 3P6, Canada
Abstract
The design of products containing sculptured surfaces typically begins with the crafting of a clay or wood model. The physical model must be reverse engineered to create a CAD representation. Three dimensional computer vision systems are currently being employed to digitize models in the first step of reverse engineering. In this paper, a three dimensional vision system that permits multiple viewpoint digitization is described. Furthermore, a new approach to modeling the data sets generated employing wrap-around B-spline surface patches is presented. The laser digitization and software modeling of bicycle seat and telephone handset models are presented.[S1087-1357(00)70102-X]
Publisher
ASME International
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Reference24 articles.
1. Akita, M. , 1991, “Design and Ergonomics,” Ergonomics, 36, No. 6, pp. 815–824. 2. Nielson, G. M. , 1993, “CAGD’s Top Ten. What to Watch,” Computer-Aided Geom. Des., 10, pp. 35–37. 3. Milroy, M., Bradley, C., Vickers, G., and Weir, D., 1995, “G1 Continuity of B-spline Surface Patches in Reverse Engineering,” Computer-Aided Des., 27, No. 6, pp. 471–478. 4. Bradley, C., and Vickers, G. W., 1993, “Free-form Surface Reconstruction for Machine Vision Rapid Prototyping,” Opt. Eng., 32, No. 9, pp. 2191–2200. 5. Bradley, C., Milroy, M., and Vickers, G. W., 1994, “Reverse Engineering of Quadric Surfaces Employing 3-D Laser Scanning,” Proceedings of the Institution of Mechanical Engineers—Part B, 208, pp. 21–28.
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