.
Combining Silhouettes, Surface, and Volume Rendering for Surgery Education and Planning
Christian Tietjen, Tobias Isenberg, Bernhard Preim.
Eurographics / IEEE VGTC Symposium on Visualization (EUROVIS 2005), pp. 303--310, Leeds, UK, June 1-3,
2005. [BibTeX]
Curvature- and Model-Based Surface Hatching of Anatomical Structures Derived from Clinical Volume Datasets
Rocco Gasteiger, Christian Tietjen, Alexandra Baer, Bernhard Preim.
Proceedings of Smart Graphics, pp. 255--262,
2008. [BibTeX]
Enhancing Slice-based Visualizations of Medical Volume Data
Christian Tietjen, Björn Meyer, Stefan Schlechtweg, Bernhard Preim, Ilka Hertel, Gero Strauß.
IEEE/Eurographics Symposium on Visualization (EUROVIS'06), pp. 123-130, IEEE,
2006. [BibTeX]
GPU-based smart visibility techniques for tumor surgery planning
Christoph Kubisch, Christian Tietjen, Bernhard Preim.
International Journal of Computer Assisted Radiology and Surgery, Vol. 5, No. 6, pp. 667--678,
2010. [BibTeX]
Hardware-Accelerated Illustrative Medical Surface Visualization with Extended Shading Maps
Christian Tietjen, Roland Pfisterer, Alexandra Baer, Rocco Gasteiger, Bernhard Preim.
Proceedings of the 9th International Symposium on Smart Graphics (SG'08), pp. 166--167, Springer-Verlag,
2008. [BibTeX]
Hardware-accelerated Stippling of Surfaces derived from Medical Volume Data
Alexandra Baer, Christian Tietjen, Ragnar Bade, Bernhard Preim.
Eurographics/IEEE-VGTC Symposium on Visualization, pp. 235--242,
2007. [BibTeX]
NPR, Focussing and Emphasis in Medical Visualizations
Author(s): Bernhard Preim, Christian Tietjen, Christina Dörge.
Proceedings: In Simulation und Visualisierung 2005. SCS,
2005.
[BibTeX] 
Abstract:
Emphasis and focussing techniques are designed to consider the importance
of objects within the rendering process. Such techniques are essential in
medical education and therapy planning systems. Non-photorealistic rendering
techniques, such as silhouette lines, are essential in this context as they convey
the shape of objects without occluding large areas. We discuss emphasis and focussing
by means of NPR in medical visualizations. We introduce techniques
which emphasize a selected object in 2d as well as 3d visualizations.