Computer Graphics and Visualization › Publications

2012

Afterimage simulation of a traffic light over time. Note the over-time change of colors, blur and shape in the afterimage
Tobias Ritschel and Elmar Eisemann
A Computational Model of Afterimages
Computer Graphics Forum, 2012
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Francesco Banterle, Alessandro Artusi, Tunc Aydin, Piotr Didyk, Elmar Eisemann, et al.
Mapping Images to Target Devices: Spatial, Temporal, Stereo, Tone, and Color
In Proceedings of Eurographics (Tutorials), 2012
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Orthopaedic workflow for hip prosthesis replacement: A 3D CT-scan (a) is segmented into labels (b). This discrete volume image is converted to a volume mesh (c). Based on medical simulations (d) [1], optimal implant design and positioning can be determined.
Christian Kehl, Daniel F. Malan, and Elmar Eisemann
Conformal multi-material mesh generation from labelled medical volumes
In Proceedings of 3D NordOst Workshop, 2012
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When stereo content (a; b) is manipulated (c), we quantify the perceived change considering luminance, and disparity (d), whereas previous work leads to wrong predictions (e) e. g., for low-texture areas, fog, or depth-of-field (arrows).Please note that all images in the paper, except for disparity and response maps are presented in anaglyph colors.
Piotr Didyk, Tobias Ritschel, Elmar Eisemann, Karol Myszkowski, Hans-Peter Seidel, and Wojciech Matusik
A luminance-contrast-aware disparity model and applications
ACM Transactions on Graphics, 2012
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Spatial querying through sphere selection. A distance query reveals the literature and anatomical landmarks associated to the structures within the selection sphere.
Noeska Natasja Smit, Anne C. Kraima, Daniel Jansma, Marco C. Deruiter, and Charl P. Botha
A Unified Representation for the Model-based Visualization of Heterogeneous Anatomy Data
In Proceedings of EuroVis (Short Papers), 2012
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A distance query returns all information related to the structures inside the sphere.
Noeska Natasja Smit, Anne C. Kraima, Daniel Jansma, Marco C. Deruiter, and Charl P. Botha
The unified anatomical human (beta): model-based representation of heterogeneous anatomical data
In Proceedings of 3D Physiological Human Workshop, 2012
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From left to right: Starting from an original depth map a pixel disparity map is computed and then a disparity pyramid is built. After multi-resolution disparity processing, the dynamic range of disparity is adjusted and the resulting enhanced disparity map is produced. The map is then used to create enhanced stereo image.
Piotr Didyk, Tobias Ritschel, Elmar Eisemann, Karol Myszkowski, and Hans-Peter Seidel
Apparent stereo: the Cornsweet illusion can enhance perceived depth
In Proceedings of Human Vision and Electronic Imaging, 2012
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A temporal maximum speed volume (tMSV) takes the maximum blood-flow speed for each voxel throughout the cardiac cycle. An initial surface can be extracted from this static representation of the blood-flow regions. A standard marching cubes algorithm is employed to generate the iso-surface
R.F.P. van Pelt, Thuc Nghi Nguyen, B.M. ter Haar Romeny, and Anna Vilanova
Automated segmentation of blood-flow regions in large thoracic arteries using 3D-cine PC-MRI measurements
International Journal of Computer Assisted Radiology and Surgery, 2012
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Overview of the extraction approach: Based on the flow grid and the aneurysm ostium we seed streamlines at the ostium into the aneurysm. We identify several local line properties on the streamlines to compute a quality scalar field on the ostium. Given this scalar field we extract a seeding curve on the ostium, which is used to construct the boundary contour of the inflow jet. A second scalar field is computed on the aneurysm surface to indicate the impingement zone. Finally, we visualize both information expressively.
R. Gasteiger, D. Lehmann, R.F.P. van Pelt, G. Janiga, O. Beuing, et al.
Automatic Detection and Visualization of Qualitative Hemodynamic Characteristics in Cerebral Aneurysms
IEEE Transactions on Visualization and Computer Graphics, 2012
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2011

Boudewijn P. F. Lelieveldt, Charl P. Botha, E.L. Kaijzel, E.A. Hendriks, J.H.C. Reiber, et al.
Towards integrated analysis of longitudinal whole-body small animal imaging studies
In Proceedings of ICASSP, 2011
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Tim Tutenel, Roland van der Linden, Martin Kraus, Bart Bollen, and Rafael Bidarra
Procedural filters for customization of virtual worlds
In Proceedings of PCG Workshop, 2011
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Bernhard Preim and Charl P. Botha
Special section on visual computing in biology and medicine (Guest editorship)
2011
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Possible game scenario with lighting using bent normals: 2048×1024 pixels, 60.0 fps, including direct light and DOF on an Nvidia GF 560Ti. Environment mapping produces natural illumination, while bent normals cause colored shadows.
Oliver Klehm, Tobias Ritschel, Elmar Eisemann, and Hans-Peter Seidel
Bent Normals and Cones in Screen-space
In Proceedings of Vision, Modeling, and Visualization, 2011
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This figure shows glyph visualizations of HARDI and DTI-images of a 2D-slice in the brain where neural fibers in the corona radiata cross with neural fibers in the corpus callosum. Here DTI and HARDI are visualized differently; HARDI is visualized according to Def. 1, whereas DTI is visualized using Eq. (1).
R. Duits, T.C.J. Dela Haije, A. Ghosh, E.J. Creusen, Anna Vilanova, and B.M. ter Haar Romeny
Fiber Enhancement in Diffusion-Weighted MRI
In Proceedings of SSVM, 2011
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Ruben M. Smelik, Tim Tutenel, Klaas Jan de Kraker, and Rafael Bidarra
A declarative approach to procedural modeling of virtual worlds
Computers & Graphics, 2011
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Piotr Didyk, Tobias Ritschel, Elmar Eisemann, Karol Myszkowski, and Hans-Peter Seidel
A perceptual model for disparity
ACM Transactions on Graphics, 2011
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Ricardo Lopes and Rafael Bidarra
A semantic generation framework for enabling adaptive game worlds
In Proceedings of Advances in Computer Entertainment Technology, 2011
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Daniel Scherzer, Lei Yang, Oliver Mattausch, Diego Nehab, Pedro V. Sander, et al.
A Survey on Temporal Coherence Methods in Real-Time Rendering
In Proceedings of Eurographics (State of the Art Reports), 2011
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Ricardo Lopes and Rafael Bidarra
Adaptivity Challenges in Games and Simulations: A Survey
IEEE Trans Comput Intell AI Games, 2011
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Krzysztof Templin, Piotr Didyk, Tobias Ritschel, Elmar Eisemann, Karol Myszkowski, and Hans-Peter Seidel
Apparent resolution enhancement for animations
In Proceedings of SCC, 2011
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