Non-Photorealistic Computer Graphics Library

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Found 18 item(s) authored by "Stefan Schlechtweg" .
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Article A Developer's Guide to Silhouette Algorithms for Polygonal Models
Tobias Isenberg, Bert Freudenberg, Nick Halper, Stefan Schlechtweg, Thomas Strothotte.
IEEE Computer Graphics and Applications, Vol. 23, No. 4, pp. 28--37, July/August, 2003. [BibTeX]

Proceedings An Approach to Visualizing Transparency in Computer-Generated Line Drawings
Jörg Hamel, Stefan Schlechtweg, Thomas Strothotte.
IV'98, 1998. [BibTeX]

Proceedings An Illustration Technique Using Hardware-Based Intersections and Skeletons
Oliver Deussen, Jörg Hamel, Andreas Raab, Stefan Schlechtweg, Thomas Strothotte.
Graphics Interface (GI'99), pp. 175--182, 1999. [BibTeX]

Proceedings Animating Frame-To-Frame-Coherent Line Drawings for Illustrated Purposes
Maic Masuch, Lars Schumann, Stefan Schlechtweg.
Proceedings of Simulation und Visualisierung '98, SCS Europe, Peter Lorenz, Bernhard Preim, pp. 101-112, 1998. [BibTeX]

Technical Report Creating High Quality Hatching Illustrations
Johannes Zander, Tobias Isenberg, Stefan Schlechtweg, Thomas Strothotte.
Department of Computer Science, Otto-von-Guericke University of Magdeburg, No. 12/2004, Germany, 2004. [BibTeX]

Proceedings Creating Non-Photorealistic Images the Designer’s Way
Nick Halper, Stefan Schlechtweg, Thomas Strothotte.
2nd International Symposium on Non-Photorealistic Animation and Rendering (NPAR'02), Annecy, France, June 3-5, 2002. [BibTeX]

Proceedings daLi! - Drawing Animated Lines!
Maic Masuch, Stefan Schlechtweg, Bert Schönwälder.
Simulation and Animation '97, pp. 87--95, SCS Europe, Magdeburg, 1997. [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 High Quality Hatching
Johannes Zander, Tobias Isenberg, Stefan Schlechtweg, Thomas Strothotte.
Computer Graphics Forum (EG'04), Vol. 23, No. 3, pp. 421--430, September, 2004. [BibTeX]

Proceedings Icon-Based Visualization Using Mosaic Metaphors
Thomas Nocke, Stefan Schlechtweg, Heidrun Schumann.
Ninth International Conference on Information Visualisation (IV'05), pp. 103--109, 2005. [BibTeX]

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