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Computer Science Colloquium
As-rigid-as-possible deformations for surfaces and images
Olga Sorkine, NYU
Friday, October 10, 2008 11:30 A.M.
Room 1302 Warren Weaver Hall
251 Mercer Street
New York, NY 10012-1110
Directions: http://cs.nyu.edu/csweb/Location/directions.html
Colloquium Information: http://cs.nyu.edu/csweb/Calendar/colloquium/index.html
Host
Dennis Shasha shasha@courant.nyu.edu, (212) 998-3086
Synopsis
Interactive editing and deformation of digital shapes is an inherent part of the shape design, modeling and animation process. A shape deformation technique can be analyzed by observing its local differential behavior. We argue that defining a modeling operation by asking for rigidity of the local transformations is useful in various settings. Such formulation leads to a non-linear, yet conceptually simple energy, which is to be minimized by the deformed shape under particular modeling constraints. We devise a simple iterative mesh editing scheme based on this principle, that leads to detail-preserving and intuitive deformations of 3D shapes, as well as 2D warping mechanisms that are useful for image editing.
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