Prof. Dr.-Ing. Tobias Günther
Bio
Since 2020, I am a professor of visual computing at the Friedrich-Alexander University of Erlangen-Nuremberg. Before, I was a postdoctoral researcher in the Computer Graphics Laboratory (CGL) at ETH Zurich, where I worked in the group of Prof. Markus Gross. In 2016, I received my Dr.-Ing. (Ph.D.) in the Visual Computing Group at the Otto-von-Guericke University of Magdeburg, advised by Prof. Holger Theisel.
Are you excited about graphics, machine learning and science? We have an open PhD position on machine learning in visualization and differentiable visualization. Contact tobias.guenther@fau.de for more information.
Eurovis 2021
The 23rd EG Conference on Visualization takes place in Zurich from 14-18 June 2021 and is organized by Prof. Renato Pajarola (University of Zurich) and Prof. Tobias Günther (FAU). Find out more at eurovis.org
The unsteady 2D fluid flows data set (16 TB) for machine learning is now available at fondue.cgl.ethz.ch!
Jakob Jakob’s paper “A Fluid Flow Data Set for Machine Learning and its Application to Neural Flow Map Interpolation” was accepted at IEEE Visualization!
Marco Ancona’s TVCG paper “MineTime Insight: Visualizing Meeting Habits to Promote Informed Scheduling Decisions” will be presented at IEEE Visualization!
Ramon Witschi’s short paper “Implicit Ray Casting of the Parallel Vectors Operator” was accepted at IEEE Visualization!
Marzieh Berenjkoub’s short paper “Vortex Boundary Identification using Convolutional Neural Network” was accepted at IEEE Visualization!
Feature Extraction in Unsteady Flows
Our research is dedicated to novel extraction and rendering techniques for the visualization of features in unsteady flows. For this, we apply techniques from light transport in heterogeneous participating media to the unbiased rendering of features in Lagrangian scalar fields. An example in atmospheric flows are the ridges of the finite-time Lyapunov exponent (FTLE), which constrain the advection of trace gases, guide temperature diffusion, and cloud formation.
Inertial Particle Dynamics
Recent research in flow visualization focused on the analysis of massless particles. However, in many application scenarios, the mass of particles and their resulting inertia are essential, for instance when sand particles interact with aircraft. The governing ordinary differential equation of even simple inertial flow models is up to seven dimensional, which makes feature extraction a challenging task. We extract and visualize integral geometry, study the vortical motion and separation behavior of inertial particles, and extend traditional vector field topology to the inertial case.
Optimal Reference Frames for Vortex Extraction
Vortex extraction is among the most challenging tasks of vector field analysis. We investigate elegant optimization-based approaches that extract vortices in an optimal near-steady reference frame. Vortex measures thereby become invariant under initial rotations and translations of the observer, i.e., they become objective.
Visibility Optimization
When it comes to 3D flow visualization, we often encounter occlusion problems when displaying dense sets of points, lines or multiple surfaces. A vital aspect is the careful selection of the primitives that best communicate the relevant features in a data set. We investigate optimization-based approaches that adjust the opacity of points, lines and surfaces to strive for a balance between the presentation of relevant information and occlusion avoidance.
Rendering
Depending on the degree of realism, the computation of photo-realistic images can take some time. We investigate techniques to accelerate Monte Carlo rendering in order to provide faster feedback and more control for artists. Further, we explore real-time rendering solutions that efficiently mimic natural phenomena, such as interactive material aging simulations.
Data set are still hosted on my previous CGL website, but will move here soon.
Extraction and Visual Analysis of Potential Vorticity Banners around the Alps
In: IEEE Transactions on Visualization and Computer Graphics 26 (2020), p. 259-269
ISSN: 1077-2626
DOI: 10.1109/TVCG.2019.2934310
BibTeX: Download
, , , , , :
Phase Space Projection of Dynamical Systems
In: Computer Graphics Forum 39 (2020), p. 253-264
ISSN: 0167-7055
DOI: 10.1111/cgf.13978
BibTeX: Download
, , :
Visibility, Topology, and Inertia: New Methods in Flow Visualization
In: IEEE Computer Graphics and Applications 40 (2020), p. 103-111
ISSN: 0272-1716
DOI: 10.1109/MCG.2019.2959568
BibTeX: Download
:
Hyper-Objective Vortices
In: IEEE Transactions on Visualization and Computer Graphics 26 (2020), p. 1532-1547
ISSN: 1077-2626
DOI: 10.1109/TVCG.2018.2868760
BibTeX: Download
, :
Evolution of an Atmospheric Kármán Vortex Street From High-Resolution Satellite Winds: Guadalupe Island Case Study
In: Journal of Geophysical Research: Atmospheres 125 (2020), Article No.: e2019JD032121
ISSN: 2169-897X
DOI: 10.1029/2019JD032121
BibTeX: Download
, , , , , , , , , :
Accelerated Monte Carlo Rendering of Finite-Time Lyapunov Exponents
In: IEEE Transactions on Visualization and Computer Graphics 26 (2020), p. 708-718
ISSN: 1077-2626
DOI: 10.1109/TVCG.2019.2934313
BibTeX: Download
, , :
Vector Field Topology of Time-Dependent Flows in a Steady Reference Frame
In: IEEE Transactions on Visualization and Computer Graphics 26 (2020), p. 280-290
ISSN: 1077-2626
DOI: 10.1109/TVCG.2019.2934375
BibTeX: Download
, :
Visualizing the Temporal Evolution of the Universe from Cosmology Simulations
2019 IEEE Scientific Visualization Conference, SciVis 2019 (Vancouver, BC, October 20, 2019 - October 25, 2019)
In: 2019 IEEE Scientific Visualization Conference, SciVis 2019 2019
DOI: 10.1109/SciVis47405.2019.8968943
BibTeX: Download
, , :
Objective Vortex Corelines of Finite-sized Objects in Fluid Flows
In: IEEE Transactions on Visualization and Computer Graphics 25 (2019), p. 956-966
ISSN: 1077-2626
DOI: 10.1109/TVCG.2018.2864828
BibTeX: Download
, :
Robust reference frame extraction from unsteady 2D vector fields with convolutional neural networks
In: Computer Graphics Forum 38 (2019), p. 285-295
ISSN: 0167-7055
DOI: 10.1111/cgf.13689
BibTeX: Download
, :
Stylized Image Triangulation
In: Computer Graphics Forum 38 (2019), p. 221-234
ISSN: 0167-7055
DOI: 10.1111/cgf.13526
BibTeX: Download
, :
Visual Analysis of Aneurysm Data using Statistical Graphics
In: IEEE Transactions on Visualization and Computer Graphics 25 (2019), p. 997-1007
ISSN: 1077-2626
DOI: 10.1109/TVCG.2018.2864509
BibTeX: Download
, , , , , :
Visualization of Clouds and Atmospheric Air Flows
In: IEEE Computer Graphics and Applications 39 (2019), p. 12-25
ISSN: 0272-1716
DOI: 10.1109/MCG.2018.2880821
BibTeX: Download
, , :
Visualization of Neural Network Predictions for Weather Forecasting
In: Computer Graphics Forum 38 (2019), p. 209-220
ISSN: 0167-7055
DOI: 10.1111/cgf.13453
BibTeX: Download
, :
The State of the Art in Vortex Extraction
In: Computer Graphics Forum 37 (2018), p. 149-173
ISSN: 0167-7055
DOI: 10.1111/cgf.13319
BibTeX: Download
, :
Parameter space comparison of inertial particle models
2018 Conference on Vision, Modeling and Visualization, VMV 2018 (Stuttgart, October 10, 2018 - October 12, 2018)
In: Fabian Beck, Carsten Dachsbacher, Filip Sadlo (ed.): Vision, Modeling and Visualization, VMV 2018 2018
DOI: 10.2312/vmv.20181254
BibTeX: Download
, :
Visualization and analysis of deep water asteroid impacts
2018 IEEE Scientific Visualization Conference, SciVis 2018 (Berlin, October 21, 2018 - October 26, 2018)
In: Berk Geveci, Gordon Kindlmann, Luis Gustavo Nonato (ed.): 2018 IEEE Scientific Visualization Conference, SciVis 2018 - Proceedings 2018
DOI: 10.1109/SciVis.2018.8823609
BibTeX: Download
, , :
Management of Cerebral Aneurysm Descriptors based on an Automatic Ostium Extraction
In: IEEE Computer Graphics and Applications 38 (2018), p. 58-72
ISSN: 0272-1716
DOI: 10.1109/MCG.2018.032421654
BibTeX: Download
, , , , , :
Visualizing the Phase Space of Heterogeneous Inertial Particles in 2D Flows
In: Computer Graphics Forum 37 (2018), p. 289-300
ISSN: 0167-7055
DOI: 10.1111/cgf.13420
BibTeX: Download
, , :
Correlated point sampling for geospatial scalar field visualization
2018 Conference on Vision, Modeling and Visualization, VMV 2018 (Stuttgart, October 10, 2018 - October 12, 2018)
In: Fabian Beck, Carsten Dachsbacher, Filip Sadlo (ed.): Vision, Modeling and Visualization, VMV 2018 2018
DOI: 10.2312/vmv.20181261
BibTeX: Download
, , , :
Finite time steady vector field topology - Theoretical foundation and 3d case
2017 Conference on Vision, Modeling and Visualization, VMV 2017 (Bonn, September 25, 2017 - September 27, 2017)
In: Vision, Modeling and Visualization, VMV 2017 2017
DOI: 10.2312/vmv.20171264
BibTeX: Download
, , , :
Flow-Induced Inertial Steady Vector Field Topology
In: Computer Graphics Forum 36 (2017), p. 143-152
ISSN: 0167-7055
DOI: 10.1111/cgf.13114
BibTeX: Download
, :
Generic objective vortices for flow visualization
In: Acm Transactions on Graphics 36 (2017), Article No.: 141
ISSN: 0730-0301
DOI: 10.1145/3072959.3073684
BibTeX: Download
, , :
Progressive Monte Carlo rendering of atmospheric flow features across scales
In: Physical Review Fluids 2 (2017), Article No.: 090502
ISSN: 2469-990X
DOI: 10.1103/PhysRevFluids.2.090502
BibTeX: Download
, , , , :
Backward Finite-Time Lyapunov Exponents in Inertial Flows
In: IEEE Transactions on Visualization and Computer Graphics 23 (2017), p. 970-979
ISSN: 1077-2626
DOI: 10.1109/TVCG.2016.2599016
BibTeX: Download
, :
Decoupled Opacity Optimization for Points, Lines and Surfaces
In: Computer Graphics Forum 36 (2017), p. 153-162
ISSN: 0167-7055
DOI: 10.1111/cgf.13115
BibTeX: Download
, , :
Visualization of neural network predictions for weather forecasting
2017 Conference on Vision, Modeling and Visualization, VMV 2017 (Bonn, September 25, 2017 - September 27, 2017)
In: Vision, Modeling and Visualization, VMV 2017 2017
DOI: 10.2312/vmv.20171260
BibTeX: Download
, :
MCFTLE: Monte Carlo Rendering of Finite-Time Lyapunov Exponent Fields
In: Computer Graphics Forum 35 (2016), p. 381-390
ISSN: 0167-7055
DOI: 10.1111/cgf.12914
BibTeX: Download
, , :
Stylized caustics: Progressive rendering of animated caustics
In: Computer Graphics Forum 35 (2016), p. 243-252
ISSN: 0167-7055
DOI: 10.1111/cgf.12827
BibTeX: Download
, , , , :
Visualizing Volcanic Clouds in the Atmosphere and Their Impact on Air Traffic
In: IEEE Computer Graphics and Applications 36 (2016), p. 36-47
ISSN: 0272-1716
DOI: 10.1109/MCG.2015.121
BibTeX: Download
, , , :
Rotation Invariant Vortices for Flow Visualization
In: IEEE Transactions on Visualization and Computer Graphics 22 (2016), p. 817-826
ISSN: 1077-2626
DOI: 10.1109/TVCG.2015.2467200
BibTeX: Download
, , :
Inertial steady 2D vector field topology
In: Computer Graphics Forum 35 (2016), p. 455-466
ISSN: 0167-7055
DOI: 10.1111/cgf.12846
BibTeX: Download
, :
Singularities of the inertial flow map gradient
21st International Symposium on Vision, Modeling and Visualization, VMV 2016 (Bayreuth, October 10, 2016 - October 12, 2016)
In: Dieter Fellner (ed.): VMV 2016 - Vision, Modeling and Visualization 2016
DOI: 10.2312/vmv.20161344
BibTeX: Download
, :
Source Inversion by Forward Integration in Inertial Flows
In: Computer Graphics Forum 35 (2016), p. 371-380
ISSN: 0167-7055
DOI: 10.1111/cgf.12913
BibTeX: Download
, :
Consistent Scene Editing by Progressive Difference Images
In: Computer Graphics Forum 34 (2015), p. 41-51
ISSN: 0167-7055
DOI: 10.1111/cgf.12677
BibTeX: Download
, :
Finite-Time Mass Separation for Comparative Visualizations of Inertial Particles
In: Computer Graphics Forum 34 (2015), p. 471-480
ISSN: 0167-7055
DOI: 10.1111/cgf.12659
BibTeX: Download
, :
Illumination-driven Mesh Reduction for Accelerating Light Transport Simulations
In: Computer Graphics Forum 34 (2015), p. 165-174
ISSN: 0167-7055
DOI: 10.1111/cgf.12688
BibTeX: Download
, , :
Distributed out-of-core stochastic progressive photon mapping
In: Computer Graphics Forum 33 (2014), p. 154-166
ISSN: 0167-7055
DOI: 10.1111/cgf.12340
BibTeX: Download
, :
Hierarchical opacity optimization for sets of 3D line fields
In: Computer Graphics Forum 33 (2014), p. 507-516
ISSN: 0167-7055
DOI: 10.1111/cgf.12336
BibTeX: Download
, , :
Opacity optimization for surfaces
In: Computer Graphics Forum 33 (2014), p. 11-20
ISSN: 0167-7055
DOI: 10.1111/cgf.12357
BibTeX: Download
, , , , :
Vortex cores of inertial particles
In: IEEE Transactions on Visualization and Computer Graphics 20 (2014), p. 2535-2544
ISSN: 1077-2626
DOI: 10.1109/TVCG.2014.2346415
BibTeX: Download
, :
Numerical examination of a model rotor in brownout conditions
70th American Helicopter Society International Annual Forum 2014 (, May 20, 2014 - May 22, 2014)
In: Annual Forum Proceedings - AHS International 2014
BibTeX: Download
, , , :
Sets of globally optimal stream surfaces for flow visualization
In: Computer Graphics Forum 33 (2014), p. 1-10
ISSN: 0167-7055
DOI: 10.1111/cgf.12356
BibTeX: Download
, , , , , , :
Mass-dependent integral curves in unsteady vector fields
In: Computer Graphics Forum 32 (2013), p. 211-220
ISSN: 0167-7055
DOI: 10.1111/cgf.12108
BibTeX: Download
, , , :
Opacity optimization for 3D line fields
In: Acm Transactions on Graphics 32 (2013), Article No.: 120
ISSN: 0730-0301
DOI: 10.1145/2461912.2461930
BibTeX: Download
, , :
Trajectory Density Projection for Vector Field Visualization
Eurographics Conference on Visualization (EuroVis) - Short Papers (Leipzig, Germany, June 17, 2013 - June 21, 2013)
In: Hlawitschka M, Weinkauf T (ed.): EuroVis - Short Papers 2013
DOI: 10.2312/PE.EuroVisShort.EuroVisShort2013.031-035
BibTeX: Download
, , , , , :
GPU-accelerated interactive material aging
17th Annual Workshop on Vision, Modeling and Visualization, VMV 2012 (, November 12, 2012 - November 14, 2012)
In: VMV 2012 - Vision, Modeling and Visualization 2012
DOI: 10.2312/PE/VMV/VMV12/063-070
BibTeX: Download
, , :
A view-dependent and inter-frame coherent visualization of integral lines using screen contribution
16th International Workshop on Vision, Modeling and Visualization, VMV 2011 (Bonn, October 4, 2011 - October 6, 2011)
In: VMV 2011 - Vision, Modeling and Visualization 2011
DOI: 10.2312/PE/VMV/VMV11/215-222
BibTeX: Download
, , , :
Oberseminar (OS)
-
Doktorandenseminar Graphische Datenverarbeitung
Hörerkreis: Doktoranden des LGDV
- Fri 11:00-14:00, Room 01.150-128
Vorlesung (VORL)
-
Applied Visualization
- Thu 10:15-11:45, Room H4
Übung (UE)
-
Tutorials to Applied Visualization
- Thu 14:15-15:45, Room H4
Praktikum (PR)
-
Interactive Visualization Project
- Wed 16:15-17:45, Room H4
- Thu 12:15-13:45, Room H4