@article{ShiWeinkaufTheiseletal.2008, author = {Shi, Kuangyu and Weinkauf, Tino and Theisel, Holger and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Visualizing Transport Structures of Time-Dependent Flow Fields}, series = {IEEE Computer Graphics and Applications}, journal = {IEEE Computer Graphics and Applications}, doi = {10.1109/MCG.2008.106}, pages = {24 -- 35}, year = {2008}, language = {en} } @article{OttoGermerHegeetal.2010, author = {Otto, Mathias and Germer, Tobias and Hege, Hans-Christian and Theisel, Holger}, title = {Uncertain 2D Vector Field Topology}, series = {Comput. Graph. Forum}, volume = {29}, journal = {Comput. Graph. Forum}, doi = {10.1111/j.1467-8659.2009.01604.x}, pages = {347 -- 356}, year = {2010}, language = {en} } @inproceedings{KuhnLindowGuentheretal.2013, author = {Kuhn, Alexander and Lindow, Norbert and G{\"u}nther, Tobias and Wiebel, Alexander and Theisel, Holger and Hege, Hans-Christian}, title = {Trajectory Density Projection for Vector Field Visualization}, series = {EuroVis 2013, short papers. M. Hlawitschka, Tino Weinkauf (eds.)}, booktitle = {EuroVis 2013, short papers. M. Hlawitschka, Tino Weinkauf (eds.)}, doi = {10.2312/PE.EuroVisShort.EuroVisShort2013.031-035}, pages = {31 -- 35}, year = {2013}, language = {en} } @article{WeinkaufTheiselHegeetal.2006, author = {Weinkauf, Tino and Theisel, Holger and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Topological structures in two-parameter-dependent 2D vector fields}, series = {Computer Graphics Forum}, volume = {25 (3)}, journal = {Computer Graphics Forum}, doi = {10.1111/j.1467-8659.2006.00980.x}, pages = {607 -- 616}, year = {2006}, language = {en} } @inproceedings{WeinkaufTheiselShietal.2005, author = {Weinkauf, Tino and Theisel, Holger and Shi, Kuangyu and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Topological simplification of 3D vector fields and extracting higher order critical points}, series = {Proc. IEEE Visualization 2005}, booktitle = {Proc. IEEE Visualization 2005}, address = {Minneapolis, USA}, pages = {631 -- 638}, year = {2005}, language = {en} } @article{TheiselWeinkaufHegeetal.2005, author = {Theisel, Holger and Weinkauf, Tino and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Topological methods for 2D time-dependent vector fields based on stream lines and path lines}, series = {IEEE Transactions on Visualization and Computer Graphics}, volume = {11}, journal = {IEEE Transactions on Visualization and Computer Graphics}, number = {4}, doi = {10.1109/TVCG.2005.68}, year = {2005}, language = {en} } @inproceedings{WeinkaufTheiselHegeetal.2004, author = {Weinkauf, Tino and Theisel, Holger and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Topological construction and visualization of higher order 3D vector fields}, series = {Computer Graphics Forum}, volume = {23(3)}, booktitle = {Computer Graphics Forum}, address = {Grenoble, France}, doi = {10.1109/VISUAL.2005.1532842}, pages = {469 -- 478}, year = {2004}, language = {en} } @inproceedings{TheiselWeinkaufHegeetal.2004, author = {Theisel, Holger and Weinkauf, Tino and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Stream line and path line oriented topology for 2D time-dependent vector fields}, series = {Proc. IEEE Visualization 2004}, booktitle = {Proc. IEEE Visualization 2004}, address = {Austin, U.S.A.}, doi = {10.1109/VIS.2004.99}, pages = {321 -- 328}, year = {2004}, language = {en} } @inproceedings{vonFunckWeinkaufTheiseletal.2008, author = {von Funck, Wolfram and Weinkauf, Tino and Theisel, Holger and Hege, Hans-Christian}, title = {Smoke Surfaces: An Interactive Flow Visualization Technique Inspired by Real-World Flow Experiments}, series = {IEEE Transactions on Visualization and Computer Graphics (Proceedings Visualization 2008)}, volume = {14}, booktitle = {IEEE Transactions on Visualization and Computer Graphics (Proceedings Visualization 2008)}, number = {6}, doi = {10.1109/TVCG.2008.163}, pages = {1396 -- 1403}, year = {2008}, language = {en} } @inproceedings{TheiselWeinkaufHegeetal.2003, author = {Theisel, Holger and Weinkauf, Tino and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Saddle Connectors - An Approach to Visualizing the Topological Skeleton of Complex 3D Vector Fields}, series = {Proc. IEEE Visualization 2003}, booktitle = {Proc. IEEE Visualization 2003}, address = {Seattle}, doi = {10.1109/VISUAL.2003.1250376}, pages = {225 -- 232}, year = {2003}, language = {en} } @misc{GuentherKuhnHegeetal., author = {G{\"u}nther, Tobias and Kuhn, Alexander and Hege, Hans-Christian and Gross, Markus and Theisel, Holger}, title = {Progressive Monte-Carlo Rendering of Atmospheric Flow Features Across Scales}, series = {69th Annual Meeting of the APS Division of Fluid Dynamics, Gallery of Fluid Motion, Nov 20-22, 2016, Portland, OR, USA.}, journal = {69th Annual Meeting of the APS Division of Fluid Dynamics, Gallery of Fluid Motion, Nov 20-22, 2016, Portland, OR, USA.}, doi = {10.1103/APS.DFD.2016.GFM.P0030}, abstract = {To improve existing weather prediction and reanalysis capabilities, high-resolution and multi-modal climate data becomes an increasingly important topic. The advent of increasingly dense numerical simulation of atmospheric phenomena, provides new means to better understand dynamic processes and to visualize structural flow patterns that remain hidden otherwise. In the presented illustrations we demonstrate an advanced technique to visualize multiple scales of dense flow fields and Lagrangian patterns therein, simulated by state-of-the-art simulation models for each scale. They provide a deeper insight into the structural differences and patterns that occur on each scale and highlight the complexity of flow phenomena in our atmosphere.}, language = {en} } @article{GuentherKuhnHegeetal., author = {G{\"u}nther, Tobias and Kuhn, Alexander and Hege, Hans-Christian and Gross, Markus and Theisel, Holger}, title = {Progressive Monte Carlo rendering of atmospheric flow features across scales}, series = {Physical Review Fluids}, volume = {2}, journal = {Physical Review Fluids}, doi = {10.1103/PhysRevFluids.2.090502}, pages = {09050-1 -- 09050-3}, abstract = {To improve existing weather prediction and reanalysis capabilities, high-resolution and multi-modal climate data becomes an increasingly important topic. The advent of increasingly dense numerical simulation of atmospheric phenomena, provides new means to better understand dynamic processes and to visualize structural flow patterns that remain hidden otherwise. In the presented illustrations we demonstrate an advanced technique to visualize multiple scales of dense flow fields and Lagrangian patterns therein, simulated by state-of-the-art simulation models for each scale. They provide a deeper insight into the structural differences and patterns that occur on each scale and highlight the complexity of flow phenomena in our atmosphere. This paper is associated with a poster winner of a 2016 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2016.GFM.P0030}, language = {en} } @inproceedings{ShiTheiselWeinkaufetal.2006, author = {Shi, Kuangyu and Theisel, Holger and Weinkauf, Tino and Hauser, Helwig and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Path line oriented topology for periodic 2D time-dependent vector fields}, series = {Proc. Eurographics / IEEE VGTC Symposium on Visualization}, booktitle = {Proc. Eurographics / IEEE VGTC Symposium on Visualization}, address = {Lisbon, Portugal}, pages = {139 -- 146}, year = {2006}, language = {en} } @inproceedings{ShiTheiselHauseretal.2009, author = {Shi, Kuangyu and Theisel, Holger and Hauser, Helwig and Weinkauf, Tino and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Path Line Attributes - an Information Visualization Approach to Analyzing the Dynamic Behavior of 3D Time-Dependent Flow Fields}, series = {Topology-Based Methods in Visualization II}, booktitle = {Topology-Based Methods in Visualization II}, publisher = {Springer}, address = {Berlin}, doi = {10.1007/978-3-540-88606-8_6}, pages = {75 -- 88}, year = {2009}, language = {en} } @article{GuentherKuhnHegeetal., author = {G{\"u}nther, Tobias and Kuhn, Alexander and Hege, Hans-Christian and Theisel, Holger}, title = {MCFTLE: Monte Carlo Rendering of Finite-Time Lyapunov Exponent Fields}, series = {Computer Graphics Forum}, volume = {35}, journal = {Computer Graphics Forum}, number = {3}, doi = {10.1111/cgf.12914}, pages = {381 -- 390}, language = {en} } @misc{GuentherKuhnHegeetal., author = {G{\"u}nther, Tobias and Kuhn, Alexander and Hege, Hans-Christian and Theisel, Holger}, title = {MCFTLE: Monte Carlo Rendering of Finite-Time Lyapunov Exponent Fields}, issn = {1438-0064}, doi = {10.1111/cgf.12914}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-59054}, abstract = {Traditionally, Lagrangian fields such as finite-time Lyapunov exponents (FTLE) are precomputed on a discrete grid and are ray casted afterwards. This, however, introduces both grid discretization errors and sampling errors during ray marching. In this work, we apply a progressive, view-dependent Monte Carlo-based approach for the visualization of such Lagrangian fields in time-dependent flows. Our ap- proach avoids grid discretization and ray marching errors completely, is consistent, and has a low memory consumption. The system provides noisy previews that con- verge over time to an accurate high-quality visualization. Compared to traditional approaches, the proposed system avoids explicitly predefined fieldline seeding structures, and uses a Monte Carlo sampling strategy named Woodcock tracking to distribute samples along the view ray. An acceleration of this sampling strategy requires local upper bounds for the FTLE values, which we progressively acquire during the rendering. Our approach is tailored for high-quality visualizations of complex FTLE fields and is guaranteed to faithfully represent detailed ridge surface structures as indicators for Lagrangian coherent structures (LCS). We demonstrate the effectiveness of our approach by using a set of analytic test cases and real-world numerical simulations.}, language = {en} } @inproceedings{TheiselWeinkaufHegeetal.2004, author = {Theisel, Holger and Weinkauf, Tino and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Grid-independent detection of closed stream lines in 2D vector fields}, series = {Proc. Vision, Modeling and Visualization 2004}, booktitle = {Proc. Vision, Modeling and Visualization 2004}, address = {Stanford, U.S.A.}, pages = {421 -- 428}, year = {2004}, language = {en} } @inproceedings{ShiTheiselWeinkaufetal.2008, author = {Shi, Kuangyu and Theisel, Holger and Weinkauf, Tino and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Finite-Time Transport Structures of Flow Fields}, series = {Proc. IEEE Pacific Visualization 2008}, booktitle = {Proc. IEEE Pacific Visualization 2008}, address = {Kyoto, Japan}, doi = {10.1109/PACIFICVIS.2008.4475460}, pages = {63 -- 70}, year = {2008}, language = {en} } @inproceedings{WeinkaufSahnerGuentheretal.2008, author = {Weinkauf, Tino and Sahner, Jan and G{\"u}nther, Bert and Theisel, Holger and Hege, Hans-Christian and Thiele, Frank}, title = {Feature-based Analysis of a Multi-Parameter Flow Simulation}, series = {Proc. of 19th Simulation and Visualization Conference (SimVis 2008)}, booktitle = {Proc. of 19th Simulation and Visualization Conference (SimVis 2008)}, address = {Magdeburg, Germany}, pages = {237 -- 251}, year = {2008}, language = {en} } @incollection{WeinkaufTheiselHegeetal.2007, author = {Weinkauf, Tino and Theisel, Holger and Hege, Hans-Christian and Seidel, Hans-Peter}, title = {Feature Flow Fields in Out-of-Core Settings}, series = {Topology-based Methods in Visualization}, booktitle = {Topology-based Methods in Visualization}, publisher = {Springer}, pages = {51 -- 64}, year = {2007}, language = {en} }