Computer Graphics and Visualization › Publications

2022

Our method leverages a pair of spatial hierarchies over the embedding (center right) and a field (far right) over the embedding space to accelerate t-SNE minimization. Progression of minimizations (left) using these hierarchies is shown for a 60K point MNIST dataset (top) and a 1.2M point ImageNet dataset (bottom). The hierarchies are visualized for the last iteration of minimization.
Mark van de Ruit, Markus Billeter, and Elmar Eisemann
An Efficient Dual-Hierarchy t-SNE Minimization
IEEE Transactions on Visualization and Computer Graphics, 2022
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Mijael Ricardo Bueno Perez and Rafael Bidarra
The TaleMaker database of mixed-initiative co-created stories
In Proceedings of FDG, 2022
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2021

Virtual elements represented by markers
Marie Kegeleers and Rafael Bidarra
Story authoring in augmented reality
In Proceedings of GRAPP, 2021
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A proposed interactive workflow for our mixed-initiative approach. We arbitrarily chose the steps shown in this illustration.
Mijael Bueno, Elmar Eisemann, and Rafael Bidarra
A synset-based recommender method for mixed-initiative narrative world creation
In Proceedings of ICIDS, 2021
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Glyph developed to indicate spatial co-location of cells
Antonios Somarakis, Marieke E Ijsselsteijn, Boyd Kenkhuis, Vincent van Unen, Sietse J Luk, et al.
Visual Analysis of Tissue Images at Cellular Level
In Proceedings of EuroVis (Dirk Bartz Prize), 2021
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A visual comparison between vertex position, vertex normal, and face normal filtering methods
Sunil Kumar Yadav, Martin Skrodzki, Eric Zimmermann, and Konrad Polthier
Surface Denoising Based on Normal Filtering in a Robust Statistics Framework
In Proceedings of Forum "Math-for-Industry" 2018, 2021
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Left: Horizon-based ambient occlusion (HBAO) uses only a depth map and underestimates occlusion due to hidden geometry. Right: Our stochastic-depth HBAO captures occluded geometry stochastically (2ms in full HD).
Jop Vermeer, Leonardo Scandolo, and Elmar Eisemann
Stochastic-Depth Ambient Occlusion
ACM Comput Graph Interact Tech, 2021
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A Large-Scale Evaluation of Shape-Aware Neighborhood Weights and Neighborhood Sizes
Martin Skrodzki and Eric Zimmermann
A Large-Scale Evaluation Of Shape-Aware Neighborhood Weights And Neighborhood Sizes
Computer Aided Design, 2021
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Our method decreases error for wavelength-dependent scattering in the presence of non-uniformly distributed emission, reflectance, and transmission throughout the scene
Mark van de Ruit and Elmar Eisemann
A multi-pass method for accelerated spectral sampling
Computer Graphics Forum, 2021
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Wineglass with dispersive dielectric materials with 32 samples per pixel. As can be seen, our reweighted schemes improve upon uniform and stratified samples and produces much smoother result in terms of color noise. Significant improvements can be observed in low discrepency sequences. All results are plotted in log-log scale.
Jerry Guo and Elmar Eisemann
Geometric Sample Reweighting for Monte Carlo Integration
Computer Graphics Forum, 2021
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Maxim Mozgovoy, Mike Preuss, and Rafael Bidarra
Guest Editorial Special Issue on Team AI in Games
IEEE Trans Games, 2021
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Visualization showing safety margin around fiber tracks
Faizan Siddiqui, Thomas Höllt, and Anna Vilanova
A Progressive Approach for Uncertainty Visualization in Diffusion Tensor Imaging
Computer Graphics Forum, 2021
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An example of our AR visualisation to plan a craniotomy. A phantom skull is used for our evaluations
Joost Wooning, Mohamed Benmahdjoub, Theo van Walsum, and Ricardo Marroquim
AR-Assisted Craniotomy Planning for Tumour Resection
In Proceedings of Visual Computing in Biology and Medicine, 2021
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Illustration of the main game loop
Erik Blokland, Caroline Cullinan, Doreen Mulder, Willie Overman, Marin Visscher, et al.
Exploring multiple perspectives in citizenship education with a serious game
In Proceedings of ICIDS, 2021
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Game interface for various purposes
Dennis Bohm, Bob Dorland, Rico Herzog, Ryan B. Kap, Thijmen S. L. Langendam, et al.
How can you save the world? Empowering sustainable diet change with a serious game
In Proceedings of CoG, 2021
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Left: Visible layer transitions where bin boundaries cut through primitives. Right: Smooth layer transitions improve the results but artifacts are still visible.
Fabian Friederichs, Martin Eisemann, and Elmar Eisemann
Layered Weighted Blended Order-Independent Transparency
In Proceedings of Graphics Interface, 2021
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Main steps of text generation for a math problem
Yi Xu, Roger Smeets, and Rafael Bidarra
Procedural generation of problems for elementary math education
Int J Serious Games, 2021
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Implemented sailing maneuvers analysis pipeline used to locate maneuvers in a stabilized video and visualize these intervals
Gijs M. W. Reichert , Marcos Pieras, Ricardo Marroquim, and Anna Vilanova
Stabilization and visual analysis of video-recorded sailing sessions
Vis Comput Ind Biomed Art, 2021
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Thomas Ortner, Andreas Walch, Rebecca Nowak, Robert Barnes, Thomas Höllt, and Meister Eduard Groeller
InCorr: Interactive Data-Driven Correlation Panels for Digital Outcrop Analysis
IEEE Transactions on Visualization and Computer Graphics, 2021
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Sail shape variation due wind changing for clip “near_4k_08.mp4”. a Frame 60. b Frame 210. c Frame 330
Luiz Maciel, Ricardo Marroquim, Marcelo Vieira, Kevyn Ribeiro, and Alexandre Alho
Monocular 3D reconstruction of sail flying shape using passive markers
Mach Vis Appl, 2021
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