Computer Science

Colloquium Details

Vector and Tensor Field Design on Surfaces

Abstract

Vector and tensor fields appear naturally in many engineering and graphics applications. In this work, we develop a interactive design system for vector and tensor fields on 3D surfaces, which enables painterly rendering, pen-and-ink sketching of 3D shapes, texture synthesis, and quad-dominant remeshing. At the core of our system are efficient algorithms for the analysis and control of vector and tensor fields. For instance, vector and tensor fields often contain unwanted singularities, where visual artifacts can occur. Through singularity pair cancellation and movement operations, we allow a user to remove such singularities or move them to a more desirable location.

Biography

Eugene Zhang is currently an Assistant Professor in the School of Electrical Engineering and Computer Science at Oregon State University. He received his Ph.D. (2004) from the College of Computing at the Georgia Institute of Technology, where he was a member of the GVU Center. His research interests include Computer Graphics, Scientific Visualization, Geometric Modeling and Processing, Computer-generated Arts, and Computational Topology. Current research projects include vector and tensor field design, flow visualization, surface parameterization and remeshing, and non-photorealistic rendering.