Frank C Langbein
Ex Tenebris Scientia
Contents

C. H. Gao, F. C. Langbein, A. D. Marshall, R. R. Martin.

In: M.-S. Kim (ed), Proc. Int. Conf. Shape Modelling and Applications, IEEE Computer Society, pp. 69-77, 2003.
ISBN 0769519091.

[DOI: 10.1109/SMI.2003.1199603] [Preprint] [CiteSeer]

[Presentation]

Reverse engineering allows the geometric reconstruction of simple mechanical parts. However, the resulting models suffer from inaccuracies caused by errors in measurement and reconstruction so such models do not have the exact congruences, symmetries and other regularities the original designer intended. We wish to impose such regularities in a beautification process. This paper discusses the particular problem of detecting approximate congruences between parts (e.g. a pair of handles) of a reconstructed B-rep model, so that a subsequent step can enforce them exactly. A practical detection algorithm is given for models defined using planes, spheres, cylinders, cones and tori. Analysis of the algorithm and experimental results show that expected congruences are detected reasonably quickly. 

@INPROCEEDINGS{Gao2003,
  author =       {Chunhua. Gao and Frank C. Langbein and A. Dave
                  Marshall and Ralph R. Martin},
  title =        {Approximate Congruence Detection of Model Features
                  for Reverse Engineering},
  booktitle =    {Proc. Shape Modeling International},
  year =         2003,
  editor =       {M.-S. Kim},
  pages =        {69-77},
  address =      {Washington, DC, USA},
  publisher =    {IEEE Computer Society},
  isbn =         0769519091,
  doi =          {10.1109/SMI.2003.1199603},
  url =          {http://www.langbein.org/research/solids/borg/gao2003/},
  abstract =     {Reverse engineering allows the geometric
                  reconstruction of simple mechanical parts. However,
                  the resulting models suffer from inaccuracies caused
                  by errors in measurement and reconstruction so such
                  models do not have the exact congruences, symmetries
                  and other regularities the original designer
                  intended. We wish to impose such regularities in a
                  beautification process. This paper discusses the
                  particular problem of detecting approximate
                  congruences between parts (e.g. a pair of handles)
                  of a reconstructed B-rep model, so that a subsequent
                  step can enforce them exactly. A practical detection
                  algorithm is given for models defined using planes,
                  spheres, cylinders, cones and tori. Analysis of the
                  algorithm and experimental results show that
                  expected congruences are detected reasonably
                  quickly.},
}
Cite as Approximate Congruence Detection of Model Features for Reverse Engineering, http://www.langbein.org/research/solids/borg/gao2003 by Frank C Langbein [31/March/2009, 13:52].
CiteULikedel.icio.usdigg.comFacebookgoogle.comRedditSlashdotstumbleupon.comYahooMyWeb
Research
[Contact Details]
SearchRSS

SitemapPrint