His research interests are focused on the mathematical foundations of geometry-processing algorithms and their applications in computer graphics and related fields. He has co-authored several papers on parameterization methods, surface reconstruction, and barycentric coordinates. he received his PhD from the Universität Erlangen-Nürnberg in 2002 and spent two years as a postdoctoral research fellow at the Multi-Res Modeling Group at the California Institute of Technology and the CNR Institute of Information Science and Technologies in Pisa, Italy. Konrad Polthier