Talks and Poster Presentations (with Proceedings-Entry):
St. Bruckner, S Grimm, A. Kanitsar, E. Gröller:
"Illustrative Context-Preserving Volume Rendering";
Talk: Eurographics /IEEE VGTC Symposium on Visualization,
Leeds, United Kingdom;
- 2005-06-03; in: "Proceedings of Euro Vis; Data Visualization 2005",
K. Brodlie, D. Duke, K. Joy (ed.);
In volume rendering it is very difficult to simultaneously visualize interior and exterior structures while preserving clear shape cues. Very transparent transfer functions produce cluttered images with many overlapping structures, while clipping techniques completely remove possibly important context information. In this paper we present a new model for volume rendering, inspired by techniques from illustration that provides a means of interactively inspecting the interior of a volumetric data set in a feature-driven way which retains context information. The context-preserving volume rendering model uses a function of shading intensity, gradient magnitude, distance to the eye point, and previously accumulated opacity to selectively reduce the opacity in less important data regions. It is controlled by two user-specified parameters. This new method represents an alternative to conventional clipping techniques, shares their easy and intuitive user control, but does not suffer from the drawback of missing context information.
Online library catalogue of the TU Vienna:
Project Head Eduard Gröller:
FFF Adapt = Abt. 186/2
Created from the Publication Database of the Vienna University of Technology.