Computer Graphics and Visualization › Publications

2015

Typical 3D-UBM images of the four phantoms and for the rat right-side hindlimb lateral gastrocnemius at different view angles, generated after segmentation using the TurtleSeg software. (a) PH01LCY, (b) PH10SCY, (c) PH10SSCY, (d) PH10LCO and (e) lateral gastrocnemius.
Natália Martins, Luisa Carneiro, Hugo Dantas, Claudio Esperança, Ricardo Marroquim, et al.
Generation of 3D ultrasound biomicroscopic images: Technique validation and in vivo volumetric imaging of rat lateral gastrocnemius
Research on Biomedical Engineering, 2015
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Antonios Liapis, Rafael Bidarra, Mark J Nelson, Mike Preuss, and Georgios N Yannakakis
Creativity facet orchestration: the Whys and the Hows
Artificial and Computational Intelligence in Games: Integration (Dagstuhl seminar 15051), 2015
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Comparison with Mean Shift on 2D data
Daniel van der Ende, Jean-Marc Thiery, and Elmar Eisemann
Accelerated Mean Shift For Static And Streaming Environments
In Proceedings of DATA ANALYTICS 2015, The Fourth International Conference on Data Analytics, 2015
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Effect of the normal factor
Thomas Kroes, Dirk Schut, and Elmar Eisemann
A smooth probability-based ambient occlusion approximation for volume rendering
2015
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Left: single scattering using the original geometry of the scene. The leaves of the tree block most of the light, causing only a subtle scattering effect. Right: scattering created by occluder manipulation. Using our system, an artist can easily add holes into the shadow map of the tree, causing an increased amount of and more interesting scattering effects. While physically incorrect, it is not visible to the viewer that the right image uses fake occlusion information. Insets show the scattering only. Surface shadows are created from the unmodified shadow map.
Oliver Klehm, Timothy R. Kol, Hans-Peter Seidel, and Elmar Eisemann
Stylized scattering via transfer functions and occluder manipulation
In Proceedings of Graphics Interface, 2015
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Snapshots from an interactive shape interpolation session with five example poses of an armadillo shell model with 332k triangles. After a preprocess, our framework for nonlinear shape interpolation computes weighted average poses in real-time
Christoph von Tycowicz, Christian Schulz, Hans-Peter Seidel, and Klaus Hildebrandt
Real-Time Nonlinear Shape Interpolation
ACM Transactions on Graphics, 2015
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We compute the product of approximated visibility and environment map lighting in a stochastic Monte Carlo volume renderer to steer a joint importance sampling of the direct lighting. Our proposed two-step approach is well suited for dynamic changes in visibility and lighting functions due to a fast sweeping-plane algorithm to estimate visibility. The insets show how our technique (blue) achieves faster convergence with less samples compared to a uniform sampling (red) and importance sampling of the environment map (yellow). Here, 64 samples per pixel have been used. The Manix data set consists of 512×512×460 voxels.
Thomas Kroes, Martin Eisemann, and Elmar Eisemann
Visibility sweeps for joint-hierarchical importance sampling of direct lighting for stochastic volume rendering
In Proceedings of Graphics Interface, 2015
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A visualization of a salt marsh located in the Netherlands, rendered with our framework.
Benny Onrust, Rafael Bidarra, Robert Rooseboom, and Johan van de Koppel
Procedural generation and interactive web visualization of natural environments
In Proceedings of Web3D, 2015
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Lymph vessels draining the uterine tubes. Transverse Lyve-1Ystained sections of the fetus aged 15 weeks showing that lymph vessels draining the uterine tubes (arrows) run in the mesosalpinx. Note the substantial amount of lymph vessels along the entire length of the uterine tubes until its fimbriae (F). O indicates ovary; T, uterine tube; P, psoas major muscle. Scale bar overview, 500 Km; scale bar detail, 200 Km.
Marjolein Kleppe, Anne C. Kraima, Toon van Gorp, Noeska Natasja Smit, J.C. van Munsteren, and Marco C. Deruiter
Understanding Lymphatic Drainage Pathways of the Ovaries to Predict Sites for Sentinel Nodes in Ovarian Cancer
Int J Gynecol Cancer, 2015
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MRIDT and HistST orientations in one exemplary section
Arne Seehaus, Alard F. Roebroeck, Matteo Bastiani, Lucia Fonseca, Hansjurgen Bratzke, et al.
Histological validation of high-resolution DTI in human post mortem tissue
Front Neuroanat, 2015
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Manipulation of different entity types within the same scene. A street entity led to the generation of several buildings, represented as shapes. Each building was given a number which was then used to produce a custom texture to attach next to each door. Light sources were then instanced on the location of each street lamp, just above the doors. The generation of each entity type therefore greatly benefits when processed in sequence, in a single pipeline, instead of in separate environments.
Pedro Silva, Elmar Eisemann, Rafael Bidarra, and Antonio Coelho
Procedural Content Graphs for Urban Modeling
Int J Comput Games Technol, 2015
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Different ways to visualize the expansion of “Detective #firstName# #surname# #sipped# the #coffee#. It was #coffeeJudgement#, like life”. Right: visualizing the grammar’s connectivity shows how each symbol (in dark blue) can expand to many different options (pale blue). Left: visualizing five sample expansions demonstrates where each story varies or remains the same. Bottom-left: fully expanded text, as it would be read by the end reader (Color figure online).
Kate Compton, Ben Kybartas, and Michael Mateas
Tracery: An Author-Focused Generative Text Tool
In Proceedings of ICIDS, 2015
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Exposure comparison
Michael Stengel, Pablo Bauszat, Martin Eisemann, Elmar Eisemann, and Marcus Magnor
Temporal Video Filtering and Exposure Control for Perceptual Motion Blur
IEEE Transactions on Visualization and Computer Graphics, 2015
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Case study of a cervical tumor patient.
Renata Georgia Raidou, U.A. van der Heide, Cuong Dinh, Ghazaleh Ghobadi, Jesper Follsted Kallehauge, et al.
Visual Analytics for the Exploration of Tumor Tissue Characterization
2015
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Example of a notification that reminds the user that a stroll is available.
Jurgen van Schagen, Martijn Gribnau, Jean de Leeuw, Benjamin Los, Nick Cleintuar, and Rafael Bidarra
Super Starfish Mania: Fish for Friends
In Proceedings of CHI PLAY, 2015
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2014

Procedural dungeon example
Roland van der Linden, Ricardo Lopes, and Rafael Bidarra
Procedural generation of dungeons
IEEE Transactions on Computational Intelligence and AI in Games, 2014
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Ruben M. Smelik, Tim Tutenel, Rafael Bidarra, and Bedrich Benes
A survey on procedural modeling for virtual worlds
Computer Graphics Forum, 2014
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Niels de Hoon, R.F.P. van Pelt, A.C. Jalba, and Anna Vilanova
4D MRI Flow Coupled to Physics-Based Fluid Simulation for Blood-Flow Visualization
Computer Graphics Forum, 2014
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N. Sepasian, J.H.M. ten Thije Boonkkamp, L.M.J. Florack, B.M. ter Haar Romeny, and Anna Vilanova
Riemann-Finsler multi-valued geodesic tractography for HARDI
In Proceedings of Dagstuhl, 2014
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Leila Schemali and Elmar Eisemann
ChromoStereoscopic rendering for trichromatic displays
In Proceedings of NPAR@Expressive, 2014
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