Computer Graphics and Visualization › Publications

2009

View transition sequence of tracking a person between camera A and adjacent camera B in an office hallway surveillance scenario (see video). The guided 3D navigation enables simple first-person video observation while ensuring a good visual flow for spatial context. Our method dynamically embeds and blends video canvases in a 3D VE which consists of characteristic model landmarks and perspective lines.
Gerwin de Haan, Josef Scheuer, Raymond de Vries, and Frits H. Post
Egocentric navigation for video surveillance in 3D Virtual Environments
In Proceedings of 3DUI, 2009
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ODF representations of the DW-MRI data with 106 gradient directions and b=2000 s/mm2 of a human subject in a ROI defined on a coronal slice in the centrum semiovale. The glyphs are shown for 4 th order spherical harmonics, which are min-max normalized
T.H.J.M. Peeters, V. Prckovska, M.A. van Almsick, Anna Vilanova, and B.M. ter Haar Romeny
Fast and sleek glyph rendering for interactive HARDI data exploration
In Proceedings of PacificVis, 2009
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The hierarchical nature of the watershed scale-space segmentation. Different basins are linked to the ones above. Colours indicate different regions. Red outline indicates the original five regions.
P. Rodrigues, A.C. Jalba, P. Fillard, Anna Vilanova, and B.M. ter Haar Romeny
A multi-resolution watershed-based approach for the segmentation of diffusion tensor images
In Proceedings of MICCAI Workshop on Diffusion Modelling, 2009
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Upper row: volume reconstructions with a vertical cut through the middle of the nut, revealing the shell structure as well as the knot sandwiched between the outer and inner shells. Note the openings in the outer shell. Lower row: volume reconstruction of the outer shell with Gothic motif.
Peter Reischig, Jorik Blaas, Charl P. Botha, Alberto Bravin, Liisa Porra, et al.
A note on medieval microfabrication: the visualization of a prayer nut by synchrotron-based computer X-ray tomography
J Synchrotron Radiat, 2009
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Generating stereo frames using our upsampling
Piotr Didyk, Elmar Eisemann, Tobias Ritschel, Karol Myszkowski, and Hans-Peter Seidel
A question of time: importance and possibilities of high refresh-rates
In Proceedings of Intel Visual Computing Research Conference, 2009
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A user working on the virtual environment running on our Virtual Workbench
T. Heus, H.J.J. Jonker, H.E.A. van den Akker, Eric Griffith, Michal Koutek, and Frits H. Post
A statistical approach to the life cycle analysis of cumulus clouds selected in a virtual reality environment
Journal of Geophysical Research-Atmospheres, 2009
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Comparison plot for changing shapes for Spnl
T.H.J.M. Peeters, Karina Rodriguez, Anna Vilanova, and B.M. ter Haar Romeny
Analysis of distance/similarity measures for diffusion tensor imaging
Visualization and processing of tensor fields : advances and perspectives, 2009
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Experiencing the engineering challenges of game development
Rafael Bidarra
Experiencing the engineering challenges of game development
In Proceedings of 37th Engineering Education Conference SEFI 2009, 2009
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Example of the out-of-focus effect with our approximate algorithm.
Cyril Crassin, Fabrice Neyret, and Elmar Eisemann
Building with bricks: cuda-based gigavoxel rendering
In Proceedings of Intel Visual Computing Research Conference, 2009
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Notations for the derivation (Inlay). A point is either lit (a) or shadowed (b, c). In the latter case, we further distinguish between penumbra (b) and umbra (c), depending on whether the light source is only partially or completely hidden.
Elmar Eisemann, Ulf Assarsson, Michael Schwarz, and Michael Wimmer
Casting Shadows in Real Time
In Proceedings of ACM SIGGRAPH ASIA 2009 Courses, 2009
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In vivo results of the brain area of corpus callosum and corona radiate.
V. Prckovska, Alard F. Roebroeck, Pim Pullens, Anna Vilanova, and B.M. ter Haar Romeny
The effect of the acquisition parameters for high angular resolution diffusion imaging
In Proceedings of 17th Scientific meeting \& exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 17), 2009
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Results from the noisy synthetic data
V. Prckovska, Alard F. Roebroeck, Pim Pullens, Anna Vilanova, and B.M. ter Haar Romeny
The effect of the acquisition parameters in HARDI
In Proceedings of 17th Scientific Meeting \& Exhibition of the International Society for Magnetic Resonance in Medicine,, 2009
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An example of a factory floor.
Tim Tutenel, Rafael Bidarra, Ruben M. Smelik, and Klaas Jan de Kraker
Using Semantics to Improve the Design of Game Worlds
In Proceedings of AIIDE, 2009
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Two frames of a real-time animation sequence that conveys the uncertainty regarding the border between a cyst and a hemorrhage in an MR brain examination
Jan Klein, O. Friman, Markus Hadwiger, Bernhard Preim, F. Ritter, et al.
Visual computing for medical diagnosis and treatment
Computers & Graphics, 2009
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Classification results from the phantom data.
V. Prckovska, Anna Vilanova, C. Poupon, B.M. ter Haar Romeny, and M. Descoteaux
Fast Classification Scheme for HARDI Data Simplification
In Proceedings of ICT Innovations, 2009
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To close the remaining gaps, the straight line at the right-hand side (A), a circular arc interpolation is performed automatically using the center of gravity of the contour as the center of the circle (B). For the radius, linear interpolation is used from r1 to r2. The repaired contour is presented in (C)
K. Sihan, Charl P. Botha, Frits H. Post, Sebastiaan de Winter, Gonzalo Nieves, et al.
Fully automatic three-dimensional quantitative analysis of intracoronary optical coherence tomography: method and Validation
Catheter Cardiovasc Interv, 2009
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Rafael Bidarra and Xiaopeng Zhang
Game Technology for Training and Education
Int J Comput Games Technol, 2009
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Images show volume data that consist of billions of voxels rendered with our dynamic sparse octree approach. Our algorithm achieves real-time to interactive rates on volumes exceeding GPU memory capacity by far, tanks to efficient streaming and ray-casting solutions. Basically, the volume is only used at the resolution that is needed to produce the final image. Besides the gain in memory and speed, our rendering provides is inherently anti-aliased
Cyril Crassin, Fabrice Neyret, Sylvain Lefebvre, and Elmar Eisemann
GigaVoxels: ray-guided streaming for efficient and detailed voxel rendering
In Proceedings of SI3D, 2009
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Left cingulum segmented with estimated wFA=0.8 and w for a 128x128x66 DT volume. Left: P – positive region; N – negat region.
P. Rodrigues, Anna Vilanova, T. Twellmann, and B.M. ter Haar Romeny
Improving Diffusion Tensor Imaging Segmentation Through an Adaptive Distance Learning Scheme
In Proceedings of 17th Scientific Meeting, International Society for Magnetic Resonance in Medicine, Honolulu, 2009
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Our new rendering method using ellipsoids with fixed shape to show the fibre orientations in the cross section of an infarcted heart, which was scanned 28 days after the infarct. We also tracked fibres from two different seeding areas. The resulting fibres were rendered as thin tubes and RGB colouring of the fibre orientation was used.
T.H.J.M. Peeters, Anna Vilanova, and B.M. ter Haar Romeny
Interactive fiber structure visualization of the heart
Computer Graphics Forum, 2009
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