Browsing CS Technical Reports by Author "Lai, Yu-Chi"
Now showing items 1-5 of 5
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Data-Driven Group Animation
Lai, Yu-Chi; Chenney, Stephen; Fan, Shaohua (University of Wisconsin-Madison Department of Computer Sciences, 2005)We introduce Data-Driven Groups (DDGs), an animation technique for groups of discrete agents, such as flocks, herds, or small crowds. DDGs are a natural extension of human motion graphs to groups. They create motion by ... -
Physically-based Animation Rendering with Markov Chain Monte Carlo
Lai, Yu-Chi; Liu, Feng; Dyer, Charles (University of Wisconsin-Madison Department of Computer Sciences, 2009)Exploring temporal coherence among light transport paths is very important to remove temporally perception-sensitive artifacts in animation rendering. Using the contribution of a light transport path to all frames in an ... -
Population Monte Carlo Path Tracing
Lai, Yu-Chi; Dyer, Charles (University of Wisconsin-Madison Department of Computer Sciences, 2007)We present a novel global illumination algorithm which distributes more image samples on regions with perceptually high variance. Our algorithm iterates on a population of pixel positions used to estimate the intensity ... -
Population Monte Carlo Samplers for Rendering
Fan, ShaoHua; Lai, Yu-Chi; Chenney, Stephen; Dyer, Charles (University of Wisconsin-Madison Department of Computer Sciences, 2007)We present novel samplers and algorithms for Monte Carlo rendering. The adaptive image-plane sampler selects pixels for refinement according to a perceptually-weighted variance criteria. The hemispheric integrals sampler ... -
Real-time GPU-Based Voxelization and Applications
Chang, Hsu-Huai; Lai, Yu-Chi (University of Wisconsin-Madison Department of Computer Sciences, 2011)This paper proposes a new real-time voxelization algorithm using newly available GPU functionalities. Our voxelization algorithm is efficient and able to real-time transform a highly complex surface-represented scene into ...