Prof. Dr.-Ing. Holger Theisel, professor for Visual Computing at the University of Magdeburg, will give a presentation in the topic
"Optimal Camera Paths in 3D Visualizations"
as part of the VAC Colloquium.
Afterwards we look forward to discussions while enjoying coffee and cookies.
The event is open to anyone interested.
Abstract:
Interpolation between camera positions is a standard problem in computer graphics and visualization, and can be considered the foundation of camera path planning. As the basis for a new interpolation method, we introduce a new Riemannian metric in camera space, which measures the 3D image flow under a small movement of the camera. Building on this, we define a linear interpolation between two cameras as shortest geodesic in camera space, for which we provide a closed-form solution after a mild simplification of the metric. Furthermore, we propose a geodesic Catmull-Rom interpolant for keyframe camera animation. We compare our approach with several standard camera interpolation methods and obtain consistently better camera paths especially for cameras with extremely varying scales.
Speaker Bio
Holger Theisel is a full professor for Visual Computing at the University of Magdeburg (Germany). He received his M.S. (1994), Ph.D. (1996) and habilitation (2001) degrees from the University of Rostock (Germany) where he studied Computer Science (1989 - 1994) and worked as a research and teaching assistant (1995 - 2001). He spent 12 months (1994 - 1995) as a visiting scholar at Arizona State University (USA), and 6 months as a guest lecturer at ICIMAF Havana (Cuba). 2002 - 2006 he was a member of the Computer Graphics group at MPI Informatik Saarbrücken (Germany). 2006-2007 he was a professor for Computer Graphics at Bielefeld University (Germany). Since October 2007 he is at the University of Magdeburg. His research interests focus on scientific visualization as well as on geometric modelling, geometry processing, information visualization and Visual Analytics. He co-authored more than 75 papers in the top journals in the field and received several best paper and honorable mention awards. Among others, he served as Paper Co-Chair EuroVis 2009, General Chair of the IEEE VIS 2018 conference in Berlin, Co-Chair of the IEEE VIS Executive Committee 2021-2023, Paper Co-Chair PacificVis 2021, Short Papers Co-Chair Eurographics 2021, and as Overall Paper Chair for IEEE VIS 2024-2025.