Tim Weyrich email office CS building, room 212 phone +1 609 258 55 51 fax +1 609 258 17 71 address       Tim Weyrich Department of Computer Science 35 Olden Street Princeton University Princeton, NJ  08544

Short Bio

I am a lecturer and Postdoctoral Teaching Fellow of Princeton University, working in the Princeton Computer Graphics Group. My research interests are appearance modeling, 3D reconstruction, cultural heritage acquisition, and point-based graphics. Prior to coming to Princeton in Fall 2006, I received my PhD from ETH Zurich, Switzerland, where I developed a novel face scanner and analyzed human skin reflectance to achieve photo-realistic reconstructions of human faces. I received my Diploma degree in computer science from the University of Karlsruhe (TU), Germany, in 2001.

Teaching

Spring, 2008: COS 426 - Computer Graphics Spring, 2007: COS 598C / HLS 598 - Reconstructing the Thera Frescoes Fall, 2006: FRS 123 - Technology in Art and Cultural Heritage

Peer-Reviewed Publications

A Layered, Heterogeneous Reflectance Model for Acquiring and Rendering Human Skin Craig Donner, Tim Weyrich, Eugene d'Eon, Ravi Ramamoorthi, Szymon Rusinkiewicz. Conditionally accepted to ACM Transactions on Graphics (Proc. SIGGRAPH Asia 2008), Singapore, 2008. A System for High-Volume Acquisition and Matching of Fresco Fragments: Reassembling Theran Wall Paintings Benedict Brown, Corey Toler-Franklin, Diego Nehab, Michael Burns, Andreas Vlachopoulos, Christos Doumas, David Dobkin, Szymon Rusinkiewicz, Tim Weyrich. To appear in ACM Transactions on Graphics (Proc. SIGGRAPH 2008), Los Angeles, CA, 2008. [PDF] [Video] Dense 3D Reconstruction from Specularity Consistency. Diego Nehab, Tim Weyrich, Szymon Rusinkiewicz. In Proc. of IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Anchorage, AK, 2008. [PDF] Digital Bas-Relief From 3D Scenes. Tim Weyrich, Jia Deng, Connelly Barnes, Szymon Rusinkiewicz, Adam Finkelstein. In ACM Transactions on Graphics (Proc. SIGGRAPH 2007), 26, 3 (Jul. 2007), 32 (7 pp.), Los Angeles, CA, 2007. [PDF] A Hardware Architecture for Surface Splatting. Tim Weyrich, Simon Heinzle, Timo Aila, Daniel B. Fasnacht, Stephan Oetiker, Mario Botsch, Cyril Flaig, Simon Mall, Kaspar Rohrer, Norbert Felber, Hubert Kaeslin, Markus Gross. In ACM Transactions on Graphics (Proc. SIGGRAPH 2007), 26, 3 (Jul. 2007), 90 (11 pp.), Los Angeles, CA, 2007. [PDF] [Video] Acquisition of Human Faces Using A Measurement-Based Skin Reflectance Model. Tim Weyrich. PhD thesis No. 16741, Department of Computer Science, ETH Zürich, 2006. [PDF (61 MB)] [Low-res PDF (8.7 MB)] Analysis of Human Faces using a Measurement-Based Skin Reflectance Model. Tim Weyrich, Wojciech Matusik, Hanspeter Pfister, Bernd Bickel, Craig Donner, Chien Tu, Janet McAndless, Jinho Lee, Addy Ngan, Henrik Wann Jensen, Markus Gross. In ACM Transactions on Graphics (Proc. SIGGRAPH 2006), pp. 1013-1024, Boston, MA, July 2006. [PDF] [Video] [MERL/ETH Skin Reflectance Database] GPU-Based Ray-Casting of Quadratic Surfaces. Christian Sigg, Tim Weyrich, Mario Botsch, Markus Gross. In Proceedings of Eurographics Symposium on Point-Based Graphics, July 29-30, 2006, Boston. [PDF] [Video] [Errata] A Practical Structured Light Acquisition System for Point-Based Geometry and Texture. Filip Sadlo, Tim Weyrich, Ronny Peikert, Markus Gross. In Proceedings of Eurographics Symposium on Point-Based Graphics 2005, pp. 89-98, Stony Brook, USA, June 21-22. [PDF] Rendering Deformable Surface Reflectance Fields. Tim Weyrich, Hanspeter Pfister, Markus Gross. In IEEE Transactions on Visualization and Computer Graphics, Vol. 11, Issue 1, pp. 48-58, Jan-Feb 2005. [PDF] [Videos 1, 2, 3] Robust Watermarking of Point-Sampled Geometry. Daniel Cotting, Tim Weyrich, Mark Pauly, Markus Gross. In Proceedings of International Conference on Shape Modeing and Applications 2004 (SMI04), pp. 233-242, Genova, Italy, June 7-9, 2004. [PDF] Post-processing of Scanned 3D Surface Data. Tim Weyrich, Mark Pauly, Richard Keiser, Simon Heinzle, Sascha Scandella, Markus Gross. In Proceedings of Eurographics Symposium on Point-Based Graphics 2004, pp. 85-94, Zurich, Switzerland, Jun 2-4, 2004. [PDF] Using a Panoramic Camera for 3D Head Tracking in an AR Environment. Björn Giesler, Tobias Salb, Tim Weyrich, Rüdiger Dillmann. In Proceedings of 9th IEEE Int. Conference on Mechatronics and Machine Vision in Practice, Chiang Mai, Thailand, Sep 10-12, 2002. [PDF] Interactive simulation of teeth cleaning. Tilo Gockel, Tobias Salb, Tim Weyrich, Rüdiger Dillmann. CARS 2001, 7th Computed Maxillofacial Imaging Congress (CMI), June 2001, Berlin. [PDF] Preoperative Planning and Training Simulation for Risk Reducing Surgery. Tobias Salb, Tim Weyrich, Rüdiger Dillmann. International Training and Simulation Conference (ITEC), April 1999, The Hague, The Netherlands. [PDF]

Conference Presentations and Technical Reports

Principles of Appearance Acquisition and Representation. Tim Weyrich, Jason Lawrence, Hendrik P. A. Lensch, Szymon Rusinkiewicz, Todd Zickler. Class SIGGRAPH 2008, Los Angeles, CA, August 2008. [Class Homepage] Principles of Appearance Acquisition and Representation. Tim Weyrich, Jason Lawrence, Hendrik P. A. Lensch, Szymon Rusinkiewicz, Todd Zickler. Short Course ICCV 2007, Rio de Janeiro, Brazil, October 2007. [Course Homepage] Reassembling The Thera Frescos. Tim Weyrich. In Proceedings of Dagstuhl Seminar 07171 on Visual Computing 2007, ISSN 1862-4405, Dagstuhl, Germany, April 2007. [Abstract] Implementation Sketch: Processing and Editing of Faces using a Measurement-Based Skin Reflectance Model. Bernd Bickel, Tim Weyrich, Wojciech Matusik, Hanspeter Pfister, Craig Donner, Chien Tu, Janet McAndless, Jinho Lee, Addy Ngan, Henrik Wann Jensen, Markus Gross. Sketch ACM SIGGRAPH 2006, Boston, USA, July 2006. [PDF] Measuring Skin Reflectance and Subsurface Scattering. Tim Weyrich, Wojciech Matusik, Hanspeter Pfister, Addy Ngan, Markus Gross. Mitsubishi Electric Research Laboratories (MERL) Technical Report, TR2005-046, December 2005. [PDF] A Measurement-Based Skin Reflectance Model for Face Rendering and Editing. Tim Weyrich, Wojciech Matusik, Hanspeter Pfister, Jinho Lee, Addy Ngan, Henrik Wann Jensen, Markus Gross. Mitsubishi Electric Research Laboratories (MERL) Technical Report, TR2005-071, July 2005. [PDF] Haptic mediation of risk potentials over a soft tissue data set. Tobias Salb, Tim Weyrich, Oliver Burgert, Rüdiger Dillmann. The First PHANToM Users Research Symposium, May 1999, Heidelberg.