### December 30, Thursday 10:00, Education Building Room 570

** Title: AKVFs . A New Computational Tool for Approximate Shape Isometries
**

**Lecturer :** Mirela Ben-Chen

**Lecturer homepage
:** http://www.stanford.edu/~mirela/

**Affiliation :** Department of Computer Science, Stanford University

A fundamental problem in geometry processing is to characterize the possible transformations a shape can undergo, and still remain .the same.. Such transformations are called isometries, since they preserve some notion of distance between all points on the shape. In many cases, however, especially when dealing with discrete shapes, approximate isometries better characterize the wealth of shapes which represent the same object, such as different poses of a character. Such maps are harder to represent and parameterize, in particular when considering geodesic distances - along paths on the shape.