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Eurographics Symposium on Geometry Processing 2010 Olga Sorkine and Bruno Lvy

Summary: Eurographics Symposium on Geometry Processing 2010
Olga Sorkine and Bruno LÚvy
(Guest Editors)
Volume 29 (2010), Number 5
Closed-form Blending of Local Symmetries
Deboshmita Ghosh1
, Nina Amenta1
, Michael Kazhdan2
1University of California, Davis, California, USA
2Johns Hopkins University, Maryland, USA
We present a closed-form solution for the symmetrization problem, solving for the optimal deformation that rec-
onciles a set of local bilateral symmetries. Given as input a set of point-pairs which should be symmetric, we first
compute for each local neighborhood a transformation which would produce an approximate bilateral symmetry.
We then solve for a single global symmetry which includes all of these local symmetries, while minimizing the de-
formation within each local neighborhood. Our main motivation is the symmetrization of digitized fossils, which
are often deformed by a combination of compression and bending. In addition, we use the technique to symmetrize
articulated models.
Categories and Subject Descriptors (according to ACM CCS): http://www.acm.org/class/1998/ I.3.5 [Computer
Graphics]: Computational geometry and object modeling--I.3.8 Applications


Source: Amenta, Nina - Department of Computer Science, University of California, Davis
Kazhdan, Michael - Department of Computer Science, Johns Hopkins University


Collections: Biology and Medicine; Computer Technologies and Information Sciences