Opacity optimization for surfaces

作者: Tobias Günther , Maik Schulze , Janick Martinez Esturo , Christian Rössl , Holger Theisel

DOI: 10.1111/CGF.12357

关键词: Rendering (computer graphics)VisualizationComputer scienceOpacityFlow visualizationArtificial intelligenceComputer visionSilhouetteAlgorithm

摘要: In flow visualization, integral surfaces rapidly tend to expand, fold and produce vast amounts of occlusion. While silhouette enhancements local transparency mappings proved useful for semi-transparent depictions, they still introduce visual clutter when grow more complex. An effective visualization the requires a balance between presentation interesting surface parts avoidance occlusions that hinder view. this paper, we extend concept opacity optimization obtain global approach occlusion problem. Starting with partition into patches, compute per-patch as minimizer bounded-variable least-squares For final rendering, is interpolated on surfaces. The resulting technique interactive, frame-coherent, view-dependent driven by domain knowledge.

参考文章(45)
Marilena Maule, João L.D. Comba, Rafael P. Torchelsen, Rui Bastos, Technical Section: A survey of raster-based transparency techniques Computers & Graphics. ,vol. 35, pp. 1023- 1034 ,(2011) , 10.1016/J.CAG.2011.07.006
Ivan Viola, Andrea Brambilla, Robert Carnecky, Helwig Hauser, Ronald Peikert, Illustrative Flow Visualization: State of the Art, Trends and Challenges eurographics. pp. 75- 94 ,(2012) , 10.2312/CONF/EG2012/STARS/075-094
M. Schulze, J. Martinez Esturo, T. Günther, C. Rössl, H.-P. Seidel, T. Weinkauf, H. Theisel, Sets of Globally Optimal Stream Surfaces for Flow Visualization eurographics. ,vol. 33, pp. 1- 10 ,(2014) , 10.1111/CGF.12356
Thomas Luft, Carsten Colditz, Oliver Deussen, Image enhancement by unsharp masking the depth buffer international conference on computer graphics and interactive techniques. ,vol. 25, pp. 1206- 1213 ,(2006) , 10.1145/1141911.1142016
Larry L. Schumaker, Josef Hoschek, Dieter Lasser, Fundamentals of Computer Aided Geometric Design ,(1996)
Michael Griebel, Thomas Dornseifer, Tilman Neunhoeffer, Numerical Simulation in Fluid Dynamics: A Practical Introduction ,(1997)
Janick Martinez Esturo, Maik Schulze, Christian Ross, Holger Theisel, Poisson-based tools for flow visualization ieee pacific visualization symposium. pp. 241- 248 ,(2013) , 10.1109/PACIFICVIS.2013.6596151
Max Wardetzky, Clarisse Weischedel, Keenan Crane, Geodesics in heat: A new approach to computing distance based on heat flow ACM Transactions on Graphics. ,vol. 32, pp. 152- ,(2013) , 10.1145/2516971.2516977
Robert Carnecky, Raphael Fuchs, Stephanie Mehl, Yun Jang, Ronald Peikert, Smart Transparency for Illustrative Visualization of Complex Flow Surfaces IEEE Transactions on Visualization and Computer Graphics. ,vol. 19, pp. 838- 851 ,(2013) , 10.1109/TVCG.2012.159