Abstract
We present a novel framework to treat shapes in the setting of Riemannian geometry. Shapes - triangular meshes or more generally straight line graphs in Euclidean space - are treated as points in a shape space. We introduce useful Riemannian metrics in this space to aid the user in design and modeling tasks, especially to explore the space of (approximately) isometric deformations of a given shape. Much of the work relies on an efficient algorithm to compute geodesics in shape spaces; to this end, we present a multi-resolution framework to solve the interpolation problem - which amounts to solving a boundary value problem - as well as the extrapolation problem - an initial value problem - in shape space. Based on these two operations, several classical concepts like parallel transport and the exponential map can be used in shape space to solve various geometric modeling and geometry processing tasks. Applications include shape morphing, shape deformation, deformation transfer, and intuitive shape exploration.
| Original language | English (US) |
|---|---|
| Title of host publication | ACM SIGGRAPH 2007 Papers - International Conference on Computer Graphics and Interactive Techniques |
| State | Published - 2007 |
| Externally published | Yes |
| Event | ACM SIGGRAPH 2007 - International Conference on Computer Graphics and Interactive Techniques - San Diego, CA, United States Duration: Aug 5 2007 → Aug 9 2007 |
Other
| Other | ACM SIGGRAPH 2007 - International Conference on Computer Graphics and Interactive Techniques |
|---|---|
| Country/Territory | United States |
| City | San Diego, CA |
| Period | 08/5/07 → 08/9/07 |
Keywords
- Geodesic
- Isometric deformation
- Parallel transport
- Riemannian geometry
- Shape exploration
- Shape space
ASJC Scopus subject areas
- Computer Graphics and Computer-Aided Design
- Computer Vision and Pattern Recognition
- Human-Computer Interaction