TY - CHAP A1 - Kuhn, Alexander A1 - Lindow, Norbert A1 - Günther, Tobias A1 - Wiebel, Alexander A1 - Theisel, Holger A1 - Hege, Hans-Christian T1 - Trajectory Density Projection for Vector Field Visualization T2 - EuroVis 2013, short papers. M. Hlawitschka, Tino Weinkauf (eds.) Y1 - 2013 UR - http://vc.cs.ovgu.de/files/publications/2013/Kuhn_2013_EUROVIS.pdf U6 - https://doi.org/10.2312/PE.EuroVisShort.EuroVisShort2013.031-035 SP - 31 EP - 35 ER - TY - GEN A1 - Wiebel, Alexander A1 - Koch, Stefan A1 - Scheuermann, Gerik ED - Peikert, Ronald ED - Hauser, Helwig ED - Carr, Hamish ED - Fuchs, Raphael T1 - Glyphs for Non-Linear Vector Field Singularities T2 - Topological Methods in Data Analysis and Visualization II Y1 - 2011 SP - 177 EP - 190 PB - Springer CY - Berlin ER - TY - GEN A1 - Wiebel, Alexander A1 - Hege, Hans-Christian A1 - Ziech, Manon A1 - Caan, Matthan A1 - Stoker, Jaap A1 - Vos, Frans T1 - DCE-MRI-oriented Volume Rendering for Monitoring of Crohn’s Disease. T2 - BioVis 2011 Abstracts, 1st IEEE Symposium on Biological Data Visualization Y1 - 2011 ER - TY - CHAP A1 - Goldau, Mathias A1 - Wiebel, Alexander A1 - Gorbach, Nico A1 - Melzer, Corina A1 - Hlawitschka, Mario A1 - Scheuermann, Gerik A1 - Tittgemeyer, Marc T1 - Fiber Stippling: An Illustrative Rendering for Probabilistic Diffusion Tractography Combinatorial Vector Field Topology in 3 Dimensions T2 - 1st IEEE Symposium on Biological Data Visualization Y1 - 2011 U6 - https://doi.org/10.1109/BioVis.2011.6094044 target SP - 23 EP - 30 ER - TY - CHAP A1 - Wiebel, Alexander A1 - Preis, Philipp A1 - Vos, Frans A1 - Hege, Hans-Christian ED - Hlawitschka, Mario ED - Weinkauf, Tino T1 - 3D Strokes on Visible Structures in Direct Volume Rendering T2 - EuroVis - Short Papers Y1 - 2013 U6 - https://doi.org/10.2312/PE.EuroVisShort.EuroVisShort2013.091-095 SP - 91 EP - 95 PB - Eurographics Association ER - TY - CHAP A1 - Koch, Stefan A1 - Wiebel, Alexander A1 - Kasten, Jens A1 - Hlawitschka, Mario T1 - Visualizing Linear Neighborhoods in Non-Linear Vector Fields T2 - Proceedings of the IEEE Pacific Visualization Symposium Y1 - 2013 SP - 249 EP - 256 CY - Sydney, Australia ER - TY - GEN A1 - Homberg, Ulrike A1 - Baum, Daniel A1 - Wiebel, Alexander A1 - Prohaska, Steffen A1 - Hege, Hans-Christian ED - Bremer, Peer-Timo ED - Hotz, Ingrid ED - Pascucci, Valerio ED - Peikert, Ronald T1 - Definition, Extraction, and Validation of Pore Structures in Porous Materials BT - Theory, Algorithms, and Applications T2 - Topological Methods in Data Analysis and Visualization III Y1 - 2014 U6 - https://doi.org/10.1007/978-3-319-04099-8_15 SP - 235 EP - 248 PB - Springer ER - TY - GEN A1 - Homberg, Ulrike A1 - Baum, Daniel A1 - Wiebel, Alexander A1 - Prohaska, Steffen A1 - Hege, Hans-Christian T1 - Definition, Extraction, and Validation of Pore Structures in Porous Materials N2 - An intuitive and sparse representation of the void space of porous materials supports the efficient analysis and visualization of interesting qualitative and quantitative parameters of such materials. We introduce definitions of the elements of this void space, here called pore space, based on its distance function, and present methods to extract these elements using the extremal structures of the distance function. The presented methods are implemented by an image processing pipeline that determines pore centers, pore paths and pore constrictions. These pore space elements build a graph that represents the topology of the pore space in a compact way. The representations we derive from μCT image data of realistic soil specimens enable the computation of many statistical parameters and, thus, provide a basis for further visual analysis and application-specific developments. We introduced parts of our pipeline in previous work. In this chapter, we present additional details and compare our results with the analytic computation of the pore space elements for a sphere packing in order to show the correctness of our graph computation. T3 - ZIB-Report - 13-56 Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-42510 SN - 1438-0064 ER - TY - CHAP A1 - Hlawitschka, Mario A1 - Hotz, Ingrid A1 - Kratz, Andrea A1 - Marai, G. Elisabeta A1 - Moreno, Rodrigo A1 - Scheuermann, Gerik A1 - Stommel, Markus A1 - Wiebel, Alexander A1 - Zhang, Eugene ED - Westin, Carl-Frederic ED - Burgeth, Bernhard ED - Vilanova, Anna T1 - Top Challenges in the Visualization of Engineering Tensor Fields T2 - Visualization and Processing of Tensors and Higher-Order Descriptors for Multi-Field Data Y1 - 2014 SP - 3 EP - 15 PB - Springer ER - TY - JOUR A1 - Wiebel, Alexander A1 - Vos, Frans A1 - Foerster, David A1 - Hege, Hans-Christian T1 - WYSIWYP: What You See Is What You Pick JF - IEEE Transactions on Visualization and Computer Graphics Y1 - 2012 U6 - https://doi.org/10.1109/TVCG.2012.292 VL - 18 IS - 12 SP - 2236 EP - 2244 ER -