Non-Photorealistic Computer Graphics Library

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Found 7 item(s) authored by "Christian Tietjen" Find Author on Google.

Proceedings 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]

Proceedings 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]

Proceedings Enhancing Slice-based Visualizations of Medical Volume Data

Author(s): Christian Tietjen, Björn Meyer, Stefan Schlechtweg, Bernhard Preim, Ilka Hertel, Gero Strauß.
Proceedings: IEEE/Eurographics Symposium on Visualization (EUROVIS'06), pp. 123-130, IEEE, 2006.
[BibTeX] Find this paper on Google

Slice-based visualizations of CT and MRI data are frequently used for diagnosis, intervention planning and intraoperative navigation since they allow a precise analysis and localization. We present new techniques to enhance the visualization of cross sectional medical image data. Our work is focussed on intervention planning and intraoperative navigation. We address the following problems of slice-based visualization in these areas: the lack of a graphical overview on the positions of anatomic structures, the localization of a target structure and the display of safety zones around pathologic structures. To improve the overview, we introduce LIFTCHARTs, attached as vertical bars to a slice-based visualization. For localizing target structures, we introduce halos. These techniques restrict the occlusion of the original data to a minimum and avoid any modification of the original data. To demonstrate the usability of these visualization techniques, we show two application scenarios in which the techniques come into operation.

Article 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]

Proceedings 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]

Proceedings 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]

Proceedings NPR, Focussing and Emphasis in Medical Visualizations
Bernhard Preim, Christian Tietjen, Christina Dörge.
In Simulation und Visualisierung 2005. SCS, 2005. [BibTeX]

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