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APVIS
2010

Volume exploration using ellipsoidal Gaussian transfer functions

14 years 9 days ago
Volume exploration using ellipsoidal Gaussian transfer functions
This paper presents an interactive transfer function design tool based on ellipsoidal Gaussian transfer functions (ETFs). Our approach explores volumetric features in the statistical space by modeling the space using the Gaussian mixture model (GMM) with a small number of Gaussians to maximize the likelihood of feature separation. Instant visual feedback is possible by mapping these Gaussians to ETFs and analytically integrating these ETFs in the context of the pre-integrated volume rendering process. A suite of intuitive control widgets is designed to offer automatic transfer function generation and flexible manipulations, allowing an inexperienced user to easily explore undiscovered features with several simple interactions. Our GPU implementation demonstrates interactive performance and plausible scalability which compare favorably with existing solutions. The effectiveness of our approach has been verified on several datasets.
Yunhai Wang, Wei Chen, Guihua Shan, Tingxin Dong,
Added 29 Oct 2010
Updated 29 Oct 2010
Type Conference
Year 2010
Where APVIS
Authors Yunhai Wang, Wei Chen, Guihua Shan, Tingxin Dong, Xuebin Chi
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