Ana Piquer
Vicent
Universitat Jaume I
Dept. of Technology
E-12004, Castellon
Spain
e-mail:pvicent@tec.uji.es |
http://www.tec.uji.es/publico/personal/item?id=pvicent |
Pedro Company
Calleja
Universitat Jaume I
Dept. of Technology
E-12004, Castellon
Spain
e-mail:pcompany@tec.uji.es |
http://www.tec.uji.es/publico/personal/item?id=pcompany |
Ralph R. Martin
Cardiff University
Dept. of Computer Science
PO Box 916, Cardiff CF24 3XF
UK
e-mail:ralph@cs.cf.ac.uk |
http://ralph.cs.cf.ac.uk/ |
Keywords: Planes of Symmetry. 3D Reconstruction. Mirror Symmetry. Skewed facial-symmetry. Axis of Symmetry. Sketch Input. Sketch Understanding.
Abstract
We aim to reconstruct three-dimensional polyhedra from axonometric line drawings. Existence of symmetry in polyhedra can assist the reconstruction process. We present a new approach for determining planes of mirror symmetry of such polyhedral objects based on prior detection of their planar faces and any axes of symmetry of these faces. The axes are obtained from skewed facial symmetries, for which we also give a new method of determination.