[PAST EVENT] Colloquium: Poisson Disk Sampling and Spectrum Analysis on Surfaces

November 4, 2011
McGlothlin-Street Hall, Room 020
251 Jamestown Rd
Williamsburg, VA 23185Map this location
The ability to place stochastic samples on surfaces with Poisson disk distribution can benefit a variety of graphics applications. Such a distribution satisfies the blue noise property, i.e. lack of low frequency noise and structural bias in the Fourier power spectrum. In this talk, I will present new methods for Poisson disk sampling and spectrum analysis on arbitrary manifold surfaces. I will first describe a parallel algorithm to generate high-quality Poisson disk samples in real-time. Then I will introduce an analysis method for evaluating the spectral distribution quality of surface samples. Finally I will demonstrate how the method can benefit practical applications such as interactive surface texturing and global illumination problems.
Rui Wang is an assistant professor in the Department of Computer Science at the University of Massachusetts Amherst. He received his B.S. degree from Zhejiang University in 2001, and his Ph.D. degree in Computer Science from the University of Virginia in 2006. His research interests include real-time photorealistic rendering, global illumination, general purpose computation on graphics hardware, and image-based rendering. He received an NSF CAREER Award in 2008, and an ACM Recognition of Service Award in 2011. He is currently a program co-chair for ACM Symposium on Interactive 3D Graphics and Games (I3D) 2012. More information can be found on his webpage at {{http://www.cs.umass.edu/~ruiwang/}}.

Department of Computer Science