People

Prof. Dr. Hans Hagen

Publications (544)

To be published

Engel, D., Hagen, H., Hamann, B., Rosenbaum, R.
Structural decomposition trees: Semantic and practical implications. to appear in: Kraus, M. and Laramee, R.S., eds., Lecture Notes in Computer Science (LNCS) Series, Springer-Verlag, Heidelberg, Germany.

Stefan Koch, Sebastian Volke, Mario Hlawitschka, Gerik Scheuermann, Hans Hagen
Computing Finite-Time Lyapunov Exponents in Approximated Vector Field. Accepted for publication in the Springer book on Topological Data Analysis.

Christina Gillmann, Pablo Arbelaez, Thomas Wischgoll, Jose Tiberio Hernandez, Hans Hagen
Intuitive Error Space Exploration of Medical Image Data in Clinical Daily Routine. To be published in EuroVis 2017, Short Paper Track

Christina Gillmann, Tobias Post, Benjamin Kirsch, Thomas Wischgoll, Jörg Hartig, Bernd Hamann, Hans Hagen, Jan C. Aurich
An Industrial Vision System to analyze the Wear of Cutting Tools. To be published in the Proceedings of the IRTG 2057 Conference, Speyer, 2017.

Tobias Post, Bernd Hamann, Hans Hagen, Jan C. Aurich
Ensemble Visualization of Bottlenecks in Planar Flow Networks. To be published in the Proceedings of the IRTG 2057 Conference, Speyer, 2017.

Tobias Post, Thomas Wischgoll, Bernd Hamann, Hans Hagen
A High-Dimensional Data Quality Metric using Pareto Optimality. To be published in EG/VGTC Conference on Visualization (EuroVis), Poster Track, 2017.

2017

Tobias Post, Rebecca Ilsen, Bernd Hamann, Hans Hagen, Jan C. Aurich
User-Guided Visual Analysis of Cyber-Physical Production Systems. Journal of Computing and Information Science in Engineering 17(2), 2017, doi:10.1115/1.4034872.

2016

Christina Gillmann, Thomas Wischgoll, Hans Hagen
Holistic Surgery Monitoring of Angioplasty , in Proceedings of Young Researchers Symposium 2016

Tobias Post, Christina Gillmann, Thomas Wischgoll, Hans Hagen
Fast 3D Thinning of Medical Image Data based on Local Neighborhood Lookups. In: Proceedings of EuroVis 2016, Short Papers. doi: 10.2312/eurovisshort.20161159. BibTeX

Christina Gillmann, Thomas Wischgoll, Hans Hagen
Uncertainty-Awareness in Open Source Visualization Solutions, Workshop on Visualization in Practice, IEEE Vis 2016

Christina Gillmann, Heike Leitte, Thomas Wischgoll, Hans Hagen
From Theory to Usage: Requirements for successful Visualizations in Applications. In: Creation, Curation, Critique and Conditioning of Principles and Guidelines in Visualization (C4PGV), IEEE Vis 2016. doi: 10.1145/1235.

Tobias Post, Christina Gillmann, Thomas Wischgoll, Hans Hagen
OpenThinning: Fast 3D Thinning based on Local Neighborhood Lookups. In: Workshop on Visualization in Practice, IEEE Vis 2016.

Tobias Post, Thomas Wischgoll, Adam R. Bryant, Bernd Hamann, Paul Müller, Hans Hagen
Visually guided flow tracking in software-defined networking. In: Proceedings of the IEEE Symposium on Visualization for Cyber Security (VisSec) 2016, p. 1-4, doi: 10.1109/VIZSEC.2016.7739586. BibTeX

Kathrin Häb, Ariane Middel, Benjamin L. Ruddell and Hans Hagen
A Data-Driven Approach to Categorize Climatic Microenvironments. In: Karsten Rink, Ariane Middel and Dirk Zeckzer (Eds.): Workshop on Visualization in Environmental Sciences (EnvirVis), Groningen, Netherlands 2016, doi: 10.2312/envirvis.20161105. BibTeX

2015

Anne Berres, Hans Hagen, Stefanie Hahmann
Deformations Preserving Gauss Curvature. In Topological and Statistical Methods for Complex Data (Eds. J. Bennett, F. Vivodtzev, V. Pascucci), Springer, pp. 143-163, 2015 BibTeX

Kathrin Häb, Ariane Middel, Benjamin L. Ruddell, Hans Hagen
TraVis - A visualization framework for mobile transect data sets in an urban microclimate context. IEEE Pacific Visualization Symposium (PacificVis) 2015, pp. 167-174, doi: 10.1109/PACIFICVIS.2015.7156374. BibTeX

Berres, Anne and Obermaier, Harald and Joy, Ken and Hagen, Hans
Adaptive particle relaxation for time surfaces. IEEE Pacific Visualization Symposium (PacificVis 2015), pp. 147-151, 2015 BibTeX

Andre Schmeißer, Raimund Wegener, Dietmar Hietel, Hans Hagen
Smooth convolution-based distance functions. In Graphical Models, Elsevier, 2015, in press. doi:10.1016/j.gmod.2015.06.004

Kathrin Häb, Ariane Middel, Benjamin L. Ruddell, Hans Hagen
Spatial Aggregation of Mobile Transect Measurements for the Identification of Climatic Microenvironments. In A. Middel, K. Rink, G. H. Weber (eds.): Workshop on Visualization in Environmental Sciences (EnvirVis), pp. 19-23, 2015, doi: 10.2312/envirvis.20151086. BibTeX

Markus Flatken, Anne Berres, Jonas Merkel, Ingrid Hotz, Andreas Gerndt, Hans Hagen
Dynamic Scheduling for Progressive Large-Scale Visualization. Eurographics Conference on Visualization (EuroVis) - Short Papers, Cagliari, Sardinia, Italy, May 25-29, 2015. doi: 10.2312/eurovisshort.20151122. BibTeX

Christina Gillmann, Thomas Wischgoll, Hans Hagen
Visual Exploration in Surgery Monitoring for Coronary Vessels. In: IEEE Digital Library, online exclusive content

Jon Woodring, Mark Petersen, Andre Schmeißer, John Patchett, James Ahrens, and Hans Hagen
In Situ Eddy Analysis in a High-Resolution Ocean Climate Model. In: IEEE Transactions on Visualization and Computer Graphics. 2015, in press. doi:10.1109/TVCG.2015.2467411

Nazli Yonca Aydin, Dirk Zeckzer, Hans Hagen, Theo Schmitt
A decision support system for the technical sustainability assessment of water distribution systems. Environmental Modelling & Software, 67, 2015. doi: 10.1016/j.envsoft.2015.01.006. BibTeX

Xiang Yang, René C. Malak, Christian Lauer, Christian Weidig, Hans Hagen , Bernd Hamann, Jan C. Aurich, Oliver Kreylos
Manufacturing system design with virtual factory tools. International Journal of Computer Integrated Manufacturing 28(1): 25-40, 2015, doi: 10.1080/0951192X.2013.800948. BibTeX

U. Brandes, H. Hagen, S. Takahashi, X. Yuan
Guest Editors Introduction: Special Section on the IEEE Pacific Visualization Symposium 2014. IEEE Transactions on Visualization and Computer Graphics 21(8): 887-888, 2015, doi: 10.1109/TVCG.2015.2442351. BibTeX

J. A. Triana, D. Zeckzer, J. T. Hernandez, H. Hagen
VafusQ: A Visual Analytics Application with Data Quality Features to Support the Urban Planning Process. In A. Middel, K. Rink, G. H. Weber (eds.): Workshop on Visualization in Evironmental Sciences (EnvirVis), pp. 49-53, 2015, doi: 10.2312/envirvis.20151091. BibTeX

Markus Kronenberger, Christopher Weber, Geoffrey Gebbie, Oliver Kreylos, Louise H. Kellogg, Lorraine E. Lisiecki, Carlye Peterson, Howard J. Spero, Bernd Hamann, Hans Hagen
A Novel Distance Measure for Ocean Reconstruction from Sparse Observations Demonstrated on the Atlantic. In: Talbot, J., Keahey, A. and Wright, W., eds., Proceedings of IEEE Scientific Visualization 2015 (SciVis 2015) -- Visualization in Practice, IEEE Computer Society Press, Los Alamitos, California.

Jonas Lukasczyk, Xing Liang, Wei Luo, Eric D. Ragan, Ariane Middel, Nadya Bliss, David White, Hans Hagen, Ross Maciejewski
A Collaborative Web-Based Environmental Data Visualization and Analysis Framework. In A. Middel, K. Rink, G. H. Weber (eds.): Workshop on Visualization in Environmental Sciences (EnvirVis), pp. 25-29, 2015, doi: 10.2312/envirvis.20151087. BibTeX

Markus Kronenberger, Oliver Wirjadi, Johannes Freitag, Hans Hagen
Gaussian curvature using fundamental forms for binary voxel data. Graphical Models 82: 123-136, 2015, doi: 10.1016/j.gmod.2015.06.009 BibTeX

Freund, Alina and Aydin, Nazli and Zeckzer, Dirk and Hagen, Hans
A Decision Support System for Planning Sustainable Water Distribution Systems BibTeX

2014

Yasmin I. Al-Zokari, Liliana Guzman, Barbaros Can Konar, Dirk Zeckzer, Hans Hagen
A State of the Praxis Investigation Guiding the Development of Visualizations for Minimal Cut Set Analysis, in the proceedings of (PSAM 12) Probabilistic Safety Assessment & Management conference, Hawaii, USA, June (2014). BibTeX

Nazli Yonca Aydin, Dirk Zeckzer, Hans Hagen, Theo Schmitt
Visualizing Time-Dependent Variables of Water Distribution Systems. Proceedings of IEEE Pacific Visualization Symposium (PacificVis) 2014, pp. 296-300, Yokohama, Japan, 2014.

Peter Salz, Andreas Reske, Hermann Wrigge, Gerik Scheuermann, Hans Hagen
Influence of different thorax models on anatomical precision of EIT. Proceedings of the 15th International Conference on Biomedical Applications of EIT, 2014, ISBN 978-0-7709-0577-4, p. 80

Falk Schreiber, Andreas Kerren, Kathy Börner, Hans Hagen, Dirk Zeckzer
Heterogeneous Networks on Multiple Levels,in Multivariate Network Visualization, Number 8380, Heidelberg, New York, p.177-208.

Ragaad AlTarawneh, Max Langbein, Shah Rukh Humayoun, and Hans Hagen
TopoLayout-DG: A Topological Feature-Based Framework for Visualizing Inside Behavior of Large Directed Graphs. In proceedings of the 13th SIGRAD 2014 Conference of the Swedish Eurographics Chapter, Gothenburg, Sweden, 2014. (Best paper Award)

Diana Fernández Prieto, J.A. Triana, J.C. Ibarra, I.C. Arteaga, J.T. Hernández, Hans Hagen
Radial Visualization for Geo-spatial Categorical Data. Poster Abstracts IEEE VIS 2014.

Kathrin Häb, Nils Feige, Lars Hüttenberger, Ariane Middel, Hans Hagen
Visualizing the Temporal Development of Thermo-Radiative Features on Ground-Based Thermographs. Environmental Earth Sciences 72 (10), pp. 3781-3793, 2014

S. Linden, A. Wiegmann, H. Hagen
Efficient Prediction of Permeability based on 3D Images of Core-samples. In Proc. 76th EAGE Conf. and Exhibition, Amsterdam, June 16-19, 2014.

Jonas Lukasczyk, Ariane Middel, Hans Hagen
WebGL-based Geodata Visualization for Policy Support and Decision Making. In Proc. Workshop on Visualization and Environmental Sciences (EnvirVis), O. Kolditz, K. Rink, G. Scheuermann (Eds.), 2014.

D. Mosbach, H. Hagen, M. Godehardt, O. Wirjadi
Fast and Memory-Efficient Quantile Filter for Data in Three and Higher Dimensions. In Proc. IEEE International Conference on Image Processing (ICIP 2014), pp. 2928-2932, 2014

S. Linden, H. Hagen, A. Wiegmann
The LIR Space Partitioning System Applied to Cartesian Grids. In M. Floater, T. Lyche, M.-L. Mazure, K. Mørken, L. L. Schumaker (eds.): Mathematical Methods for Curves and Surfaces, pp. 324-340, 2014, doi: 10.1007/978-3-642-54382-1_19. BibTeX

G. Scheuermann, M. Hlawitschka, G. Christoph, H. Hagen
Mathematical Foundations of Uncertain Field Visualization. In C. D. Hansen, M. Chen, C. R. Johnson, A. Kaufman, H. Hagen (eds.): Scientific Visualization, pp. 93-101, 2014, doi: 10.1007/978-1-4471-6497-5_9. BibTeX

2013

Engel, D., Hummel, M., Hoepel, F., Bein, K., Wexler, Garth, C., A., Hamann, B., Hagen, H.
Towards High-dimensional Data Analysis in Air Quality Research, Computer Graphics Forum, vol. 32, no. 3, pp. 101-110, 2013. PDF

Engel, D., Gillmann, C., Fiedler, S., Keller, S., Scheler, I., Hagen, H., Garth, C.
Visual Analysis of Circular Dichroism Spectra in Molecular Biophysics, In T.J. Jankun-Kelly, Gennady Andrienko, Ross Maciejewski, Melanie Tory, Bongshin Lee, and Heike Leitte, editors, Posters at the IEEE Conference on Visualization (IEEE VIS 2013)

F. Chen, H. Hagen, H. Obermaier, B. Hamann.
Topology Analysis of Time Dependent Multi-fluid Data Using The Reeb Graph. In Computer Aided Geometry Design, Volume 30 (6), July 2013, pp. 557-566, doi:10.1016/j.cagd.2012.03.019

Natallia Kotava, Aaron Knoll, Hans Hagen
Morse-Smale Decomposition for Multivariate Transfer Function Space for Volume Rendering. Computer Aided Geometric Design, Volume 30 (6), pp. 549-556, July 2013, doi:10.1016/j.cagd.2012.03.020

Engel, D., Hagen, H., Hamann, B. and Rosenbaum, R.
Structural decomposition trees: Semantic and practical implications. Computer Vision, Imaging and Computer Graphics - Theory and Applications, Communications in Computer and Information Science (CCIS) Series, vol. 359, pp. 193-208, 2013.

Kathrin Häb, Ariane Middel, Hans Hagen
Using K-Means Clustering for a Spatial Analysis of Multivariate and Time-Varying Microclimate Data. EuroVis Workshop on Visualisation in Environmental Sciences (EnvirVis), Leipzig (2013)"

Peter Salz, Andreas Reske, Hermann Wrigge, Gerik Scheuermann, Hans Hagen
Improving Electrical Impedance Tomography Imaging of the Lung with Patient-specific 3D Models, In Short Paper Proceedings of the EuroVis workshop on Visualization in Medicine and Life Sciences (VMLS 2013), Eurographics Digital Library, pages 49-53, 2013

M. Langbein, I. Scheler, A. Ebert, H. Hagen
B:3D - Visualize Land-use Plans Interactively , The Eurographics Conference on Visualization, Leipzig, 2013

2012

Harald Obermaier, Jan Mohring, Eduard Deines, Martin Hering-Bertram and Hans Hagen
On Mesh-Free Valley Surface Extraction with Application to Low Frequency Sound Simulation, IEEE Transactions on Visualization and Computer Graphics, vol. 18, no. 2, pp. 270-282, Feb. 2012

H. Obermaier, M. I. Billen, K. I. Joy, H. Hagen, M. Hering-Bertram
Visualization and multivariate clustering of scattered moment tensors. Information Visualization, January 2012 vol. 11 no. 1 pp. 43-59

Yasmin I. Al-Zokari, Yi Yang, Dirk Zeckzer, Peter Dannenmann, Hans Hagen
Towards Advanced Visualization & Interaction Techniques for Fault Tree Analyses comparing existing methods and tools, Probabillistic Safety Assessment and Management (PSAM11 & ESREL2012), Helsinki, Finland, pp.4563-4572, vol. 6, Curran Associates, Inc, 2012. BibTeX

Attila Gyulassy, Natallia Kotava, Mark Kim, Charles D. Hansen, Hans Hagen, Valerio Pascucci
Direct Feature Visualization Using Morse-Smale Complexes, IEEE Transactions on Visualization and Computer Graphics, to appear

H. Obermaier, F. Chen, H. Hagen, K. I. Joy
Visualization of Material Interface Stability, In Proceedings of IEEE PacificVis 2012, Songdo, Korea, pp. 225-232

Natallia Kotava, Aaron Knoll, Mathias Schott, Christoph Kessler, Christoph Garth, Xavier Tricoche, Elaine Cohen, Charles D. Hansen, Michael E. Papka, Hans Hagen
Volume Rendering with Multidimensional Peak Finding. Pacific Visualization Symposium, 2012, pp. 161-168, ISBN 978-1-4673-0863-2, 10.1109/PacificVis.2012.6183587 PDF

Engel, D., Petsch, S., Guhathakurta, S., Hagen, H.
Neighborhood Relation Diagrams for local comparison of carbon footprints in urban planning. Information Visualization, vol. 11, no. 2, pp. 124-135, 2012

Rosenbaum, R., Engel, D., Mouradian, J., Hagen, H., Hamann, B.
Interpretation, Interaction, and Scalability for Structural Decomposition Trees. In Proceedings of International Conference on Information Visualization Theory and Applications (IVAPP) 2012: 636-647

N. Menck, X. Yang, C. Weidig, P. Winkes, C. Lauer, H. Hagen, B. Hamann, J.C. Aurich
Collaborative Factory Planning in Virtual Reality. Procedia CIRP 3: 317 - 322, 2012, doi: 10.1016/j.procir.2012.07.055. BibTeX

Weber C. , Hahmann S., Hagen H., Bonneau G-P
Sharp feature preserving MLS surface reconstruction based on local feature line approximations; Graphical Models, 2012

C. Wagner, C. Garth, H. Hagen
Harmonic Field Analysis. In D. H. Laidlaw, A. Vilanova (eds.): New Developments in the Visualization and Processing of Tensor Fields, pp. 363-379, 2012, doi: 10.1007/978-3-642-27343-8_19. BibTeX

Yi Yang, Patric Keller, Yarden Livnat, Peter Liggesmeyer, Hans Hagen
Improving Safety-Critical Systems by Visual Analysis. Visualization of Large and Unstructured Data Sets: Applications in Geospatial Planning, Modeling and Engineering - Proceedings of IRTG 1131 Workshop 2011, Eds. Christoph Garth and Ariane Middel and Hans Hagen, OpenAccess Series in Informatics (OASIcs), ISBN 978-3-939897-46-0, Volume 27, pp. 43-58, 2012.

Simon Schröder, John A. Peterson, Harald Obermaier, Louise H. Kellog, Kenneth I. Joy, Hans Hagen
Visualization of Flow Behavior in Earth Mantle Convection, IEEE Transactions on Visualization and Computer Graphics, vol. 18, no. 12, pp. 2198-2207, Oct. 2012

H. Obermaier, M. Hering-Bertram, H. Hagen
Topological Flow Volume Extraction from Time-Surface Maps. Computer Aided Geometric Design (2012), Elsevier (in press)

Peter Salz, Andreas Reske, Hermann Wrigge, Gerik Scheuermann, Hans Hagen
User-guided Segmentation of Thoracic Computed Tomography Data for Electrical Impedance Tomography Image Reconstruction. Poster for the BioVis Symposium, Visweek 2012, Seattle, WA, USA

Anne Berres, Mathias Goldau, Marc Tittgemeyer, Gerik Scheuermann, Hans Hagen
Tractography in Context: Multimodal Visualization of Probabilistic Tractograms in Anatomical Context

Rolf Westerteiger, Fang Chen, Andreas Gerndt, Bernd Hamann, Hans Hagen
Remote GPU-Accelerated Online Pre-processing of Raster Maps for Terrain Rendering, Virtuelle und Erweiterte Realitaet - 9. Workshop der GI-Fachgruppe VR/AR 2012, Duesseldorf, Germany. PDF

Christian Wagner, Markus Flatken, Fang Chen, Andreas Gerndt, Charles Hansen, Hans Hagen
Interactive Hybrid Remote Rendering for Multi-pipe Powerwall Systems. 9. GI-Workshop Virtuelle und Erweiterte Realität, September 19 - 20, 2012, Düsseldorf, Germany.

Westerteiger, R., Compton, T., Bernardin, T., Cowgill, E., Gwinner, K., Hamann, B., Gerndt, A., Hagen, H.
Interactive Retro-Deformation of Terrain for Reconstructing 3D Fault Displacements, IEEE Transactions on Visualization and Computer Graphics, Volume:18 , Issue:12, Page(s): 2208-2215

Engel, D., Greff, K., Garth, C., Bein, K., Wexler, A., Hamann, B., Hagen, H.
Visual Steering and Verification of Mass Spectrometry Data Factorization in Air of Quality Research. IEEE Transactions on Visualization and Computer Graphics, vol. 18, no. 12, pp. 2275-2284, 2012 PDF

Oliver Rübel, Soile V. E. Keränen, Mark Biggin, David W. Knowles, Gunther H. Weber, Hans Hagen, Bernd Hamann, E. Wes Bethel
Linking Advanced Visualization and MATLAB for the Analysis of 3D Gene Expression Data, in Visualization in Medicine and Life Sciences II

Yasmin I. Al-Zokari and Dirk Zeckzer and Liliana Guzman and Peter Dannenmann and Hans Hagen
Evaluation of "Safety-Domino": a Graphical Metaphor for Supporting Minimal Cut Set Analysis, IADIS International Journal on Computer Science and Information Systems, Vol.7 , 2012 BibTeX

Yasmin I. Al-Zokari, Dirk Zeckzer, Liliana Guzman, Peter Dannenmann, Hans Hagen
SAFETY-DOMINO: Designing an Enhanced Graphical Metaphor for Supporting Minimal Cut Sets Analysis,IADIS Computer Graphics, Visualization, Computer Vision and Image Processing 2012 (CGVCVIP 2012). pp: 63-74.(Best Paper Award), Portugal (Lisbon) BibTeX

2011

Harald Obermaier, Magali I. Billen, Hans Hagen, and Martin Hering-Bertram
Interactive Visualization of Scattered Moment Tensor Data. in Visualization and Data Analysis 2011, Proc. of SPIE-IS&T Electronic Imaging, SPIE Vol. 7868, 78680I

Taimur Khan, Daniel Schneider, Yasmin Al-Zokari, Dirk Zeckzer, and Hans Hagen
Framework for Comprehensive Size and Resolution Utilization of Arbitrary Displays, In Scientific Visualization: Interactions, Features, Metaphors (Vol. 2, pp. 144–159). Dagstuhl, Germany: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik.

Yasmin I. Al-Zokari, Taimur Khan, Daniel Schneider, Dirk Zeckzer, and Hans Hagen
CakES: Cake Metaphor for Analyzing Safety Issues of Embedded Systems. In Scientific Visualization: Interactions, Features, Metaphors (Vol. 2, pp. 1–16). Dagstuhl, Germany: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik. BibTeX

Ebert, A., Hagen, H., Bierz, T., Deller, M., Olech, P., Steffen, D., Thelen, S.
SEE MORE: Improving the Usage of Large Display Environments. In: Virtual Realities - Dagstuhl Seminar 2008: pp. 161-180, Springer, 2011.

Knoll, A., Thelen, S., Wald, I., Hansen, C.D., Hagen, H., and Papka, M.E.
Full-Resolution Interactive CPU Volume Rendering with Coherent BVH Traversal, In IEEE Pacific Visualization Symposium 2011, pp. 3-10, Hong Kong, China, 2011.

Yi Yang, Dirk Zeckzer, Peter Liggesmeyer, and Hans Hagen
ViSSaAn: Visual Support for Safety Analysis, volume 2 of Dagstuhl Follow-Ups, Schloss Dagstuhl -- Leibniz-Zentrum für Informatik pages 378--395

Harald Obermaier, Martin Hering-Bertram, Jörg Kuhnert, and Hans Hagen
On Moving Least Squares Based Flow Visualization. In: VLUDS 2010, OpenAccess Series in Informatics (OASIcs), 19: 55-63, 2011.

Xiang Yang, Tobias Max, Marco Zimmermann, Hans Hagen, Jan C. Aurich
Virtual Reality Animation of Chip Formation during Turning. Proceedings of 13th CIRP Conference on Modeling of Machining Operations (CIRP CMMO 2011), Sintra, Portugal, May 12-13, 2011.

Ariane Middel and Inga Scheler and Hans Hagen
Cartography of Mars in a Virtual Reality Environment. In: OASICS 19 Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, Germany, 2011. Visualization of Large and Unstructured Data Sets - Applications in Geospatial Planning, Modeling and Engineering (IRTG 1131 Workshop), VLUDS 2010, March 19-21, 2010, Bodega Bay, CA, USA. PDF

Xiang Yang, Simon Schröder, Martin Hering-Bertram, Tim Biedert, Hans Hagen, Jan C. Aurich
Noise Investigation in Manufacturing: a simulation and Virtual Reality enhanced method. Proceedings of 44th CIRP International Conference on Manufacturing Systems (CIRP ICMS 2011), Madison, Wisconsin, USA, June 1-3, 2011.

M. W. Hlawitschka, F. Chen, H.-J. Bart, H. Hagen
CFD Simulation und verbesserte Datenauswertung einer Extraktionskolonne vom Typ Kühni. Proc. of 1st Young Researcher Symposium (YRS) 2011, Kaiserslautern, Germany, February 15, 2011,  CEUR-WS.org, ISSN 1613-0073, online CEUR-WS.org/Vol-750/yrs08.pdf

H.-J. Bart, M. W. Hlawitschka, M. Mickler, M. Jaradat, S. Didas, F. Chen, H. Hagen
Tropfenschwarmanalytik, Visualisierung und Simulation, Chemie Ingenieur Technik 83, No. 7, p.965-978

Simon Schröder, Ferdinand Olawsky, Martin Hering-Bertram, Hans Hagen
Stochastic Droplet-Fiber Collisions. Proceedings of the International Conference on Computational Science, ICCS 2011, pp. 781-790. Online proceedings available at http://www.sciencedirect.com/science/journal/18770509.

Engel, D., Rosenbaum, R., Hamann, B., Hagen, H.
Structural Decomposition Trees. Computer Graphics Forum, vol. 30, no. 3, pp. 921–930, 2011 PDF

Sebastian Petsch, Subhrajit Guhathakurta, Hans Hagen
Carbon Footprints aufgrund individuellem Verkehrsverhalten von unterschiedlichen Haushalten, REAL CORP 2011 (18-20 May 2011, Essen, Germany), Online Proceedings, available at: http://www.corp.at/archive/CORP2011_159.pdf

Yasmin Al-Zokari, Dirk Zeckzer, Hans Hagen
Safety-Domino Representing Criticality of Embedded Systems, Eurographics /IEEE Symposium on Visualization 2011 (EuroVis 2011), poster proceedings, p. 21, Bergen, Norway, 2011. BibTeX

F. Chen, M. Hlawitschka, H-J. Bart, H. Hagen
Innovative Multiphase Fluid Visualization for Droplet Column Simulations. In Proceedings of “First International Symposium on Multiscale Multiphase Process Engineering (MMPE)”, Kanazawa, Japan on October 4-7, 2011

Petra Isenberg, Niklas Elmqvist, Jean Scholtz, Daniel Cernea, Kwan-Liu Ma, and Hans Hagen.
Collaborative Visualization: Definition, Challenges, and Research Agenda. Information Visualization Journal (IVS), Special Issue on Information Visualization: State of the Field and New Research Directions, 10(4):310–326, October 2011. SAGE Publications.

H. Obermaier, M. I. Billen, H. Hagen, M. Hering-Bertram, B. Hamann
Visualizing Strain Anisotropy in Mantle Flow Fields. Computer Graphics Forum, 30: 2301–2313 (2011).

Petsch, S., Guhathakurta, S., Heischbourg, L., Müller, K., Hagen, H.
Modelling, Monitoring, and Visualizing Carbon Footprints at the Urban Neighbourhood Scale, Journal of Urban Technology, Volume 18, Issue 04, 2011, pages 81 - 96

Petsch, S., Guhathakurta, S., Engel, D., Höpel, F., Hagen, H.
Visualizing the relationship between Urban Sprawl and the increasing Carbon Footprint in Maricopa County, AZ; In Proceedings of "World Planning School Congress WPSC 2011", Perth, Australia, CD-ROM ISBN 978-1-74052-237-3

K. Müller, L. Heischbourg, Christoph Fünfzig, Sebastian Petsch, Hans Hagen
Virtual City Map Generation using Area Subdivision, Pacific Graphics 2011, Kaohsiung, Taiwan, 2011, pages 55-60.

Yasmin I. Al-Zokari, Daniel Schneider, Dirk Zeckzer, Liliana Guzman, Yarden Livnat, Hans Hagen
Enhanced CakES representing Safety Analysis results of Embedded Systems , RAMSS (Risks Awareness and Management through Smart Solutions), (FedCSIS) 2011 Federated Conference on Computer Science and Information Systems, ISBN 978-83-60810-39-2, pp. PDF BibTeX

Petsch, Sebastian, Guhathakurta, Subhrajit, Hagen, Hans
Modeling and visualizing urban sprawl and carbon footprints in Phoenix metropolitan area; In: VLUDS 2010, OpenAccess Series in Informatics (OASIcs), 19: 64-72, 2011

Yasmin I. Al-Zokari, Daniel Schneider, Dirk Zeckzer, Hans Hagen
An Enhanced Slider for Safety Analysis, IEEE VisWeek Poster 2011 BibTeX

Yang, Xiang; Malak, René; Lauer, Christian; Weidig, Christian; Hagen, Hans; Hamann, Bernd and Aurich, Jan C.
Virtual reality enhanced manufacturing systems design. In: Proceedings of 7th International Conference on Digital Enterprise Technology (DET 2011), pp. 125-133, September 28-30, 2011, Athens, Greece.

Jan Reininghaus, Natallia Kotava, David Guenther, Jens Kasten, Hans Hagen, Ingrid Hotz
"A Scale Space Based Persistence Measure for Critical Points in 2D Scalar Fields", IEEE Transactions on Visualization and Computer Graphics, 2011. PDF

P. Keller, O. Kreylos, Eric S. Cowgill, Louise H. Kellogg, M. Hering-Bertram, B. Hamann, and H. Hagen.
Construction of Implicit Surfaces from Point Clouds Using a Feature-based Approach. Scientific Visualization: Interactions, Features, Metaphors 2011, Dagstuhl Follow-Ups 2 Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik, Germany 2011

Stefanie Hahmann, Georges-Pierre Bonneau, Sébastien Barbier, Gershon Elber, Hans Hagen
Volume-preserving FFD for programmable graphics hardware, in The Visual Computer: Volume 28, Issue 3 (2012), Page 231-245

M. Hummel, C. Garth, B. Hamann, H. Hagen, K. I. Joy
Illustrative Visualization of a Vortex Breakdown Bubble. Computer Graphics Forum 30(1): 235-236, 2011, doi: 10.1111/j.1467-8659.2010.01850.x. BibTeX

Md. Aktaruzzaman, T. G. Schmitt, H. Hagen
Modeling Urban Flooding by Filtering LiDAR Data. Journal of Urban Technology 18(4): 97-112, 2011, doi: 10.1080/10630732.2011.648437. BibTeX

Thelen, S., Meyer, J., Ebert, A., Hagen, H.
Giga-Scale Multiresolution Volume Rendering on Distributed Display Clusters. In Workshop Proceedings, Human Aspects of Visualization, INTERACT09, Uppsala, Sweden, 2009, Springer, pp. 142-162.

Harald Obermaier, Martin Hering-Bertram, Jörg Kuhnert, Hans Hagen
Generation of Adaptive Streak Surfaces Using Moving Least Squares, In DFU, Vol. 2, Scientific Visualization: Interactions, Features, Metaphors (2011). pages 260-275 PDF

2010

F. Chen, H. Hagen
A survey of Interface Tracking Methods in Multi-phase Fluid Visualization, ISBN 978-3-939897-29-3, OASICS Vol. 19.

Ebert, A., Thelen, S., Olech, P., Meyer, J., Hagen, H.
Tiled++ - An Enhanced Tiled Hi-Res Display Wall. IEEE Transactions on Visualization and Computer Graphics (TVCG), Vol. 16, No.1, Jan/Feb 2010, pp. 120-132.

H. Obermaier, M. Hering-Bertram, H. Hagen
Time-Surface Maps. Foundations of Topological Analysis Workshop (VisWeek 2010) PDF

H. Obermaier, J. Kuhnert, M. Hering-Bertram, and H. Hagen
Stream volume segmentation of grid-less flow simulation, Topological Methods in Data Analysis and Visualization: Theory, Algorithms and Applications (Proc. of TopoInVis 2009), pp. 127-138. The original publication is available at www.springerlink.com PDF

Christian Wagner, Markus Flatken, Michael Meinel, Andreas Gerndt, Hans Hagen
FSSteering: A Distributed Framework for Computational Steering in a Script-based CFD Simulation Environment. Lehmanns Media, Berlin, Germany. 6th High-End Visualization Workshop, 8-12 December 2010, Obergurgl, Austria. ISBN 978-3-86541-361-1. PDF

C. Wagner, M. Flatken, M. Meinel, A. Gerndt, H. Hagen
FSSteering: A Distributed Framework for Computational Steering in a Script-based CFD Simulation Environment

G.H. Weber, S. Ahern, E.W. Bethel, S. Borovikov, H.R. Childs, E. Deines. C. Garth, H. Hagen, B. Hamann, K.I. Joy, D. Martin, J. Meredith, Prabhat, D. Pugmire, O. Rübel, B. Van Strallen, K. Wu
Recent Advances in VisIt: AMR Streamlines and Query-Driven Visualization,

D.M. Ushizima, C.G.R. Geddes, E. Cormier-Michel, E.W. Bethel, J. Jacopsen, Prabhat, O. Rübel, G.H. Weber, P. Messmer, B. Hamann, H.Hagen
Automated detection and analysis of particel beams in laser-plasma accelerator simulations; in Machine Learning, In-Tech, Vienna, Austria, pages 367-389, ISBN ISBN 978-953-307-033-9, Feb.2010

Rübel, O., Weber G.H., Huang M.-Y., Bethel E.W., Biggin M.D., Fowlkes C.C., Luengo Hendriks C.L., Keränen S.V.E., Eisen M.B., Knowles D.W., Malik J., Hagen H. and Hamann B.
Integrating Data Clustering and Visualization for the Analysis of 3D Gene Expression Data, IEEE/ACM Transactions on Computational Biology and Bioinformatics, published online May.2008, in print vol.7, number 1, pages 64--79, March.2010.

Christian Wagner
Open Problems in Computational Steering of Massive Parallel Unstructured Grid Based CFD Simulations. VLUDS 2010: 82-89

I. Hotz, J. Sreevalsan-Nair, H. Hagen, B. Hamann
Tensor Field Reconstruction Based on Eigenvector and Eigenvalue Interpolation. In Dagstuhl Follow-Ups; Scientific Visualization: Advanced Concepts: 110-123, 2010, doi: 10.4230/DFU.SciViz.2010.110. BibTeX

Min Chen and Hans Hagen
Guest Editors' Introduction: Knowledge-Assisted Visualization. IEEE Computer Graphics and Applications 30(1): 15-16, 2010, doi: 10.1109/MCG.2010.8. BibTeX

Weber, C., Hahmann, S., Hagen, H.
Methods for Feature Detection in Point Clouds, Visualization of Large and Unstructured Data Sets– IRTG Workshop, 2010, pp. 90–99

K. Müller, Ch. Fünfzig, L. Reusche, D. Hansford, G. Farin, H. Hagen,
DINUS – Double Insertion, Non-Uniform, Stationary Subdivision Surfaces, ACM Transactions on Graphics, volume 29, number 3, pages 1 - 21.

Peter Olech, Daniel Cernea, Sebastian Thelen, Achim Ebert, Andreas Kerren, and Hans Hagen.
V.I.P. – Supporting Digital Earth Ideas Through Visualization, Interaction and Presentation Screens. In Proceedings of the 7th Taipei International Digital Earth Symposium (TIDES 2010), pp. 36-49, 2010.

Weber C., Hahmann S., Hagen H.
Sharp Feature Detection in Point Clouds; SMI 2010; in: Proceedings SMI 2010 pp. 175-187 PDF

Vivodtzev, F., Hahmann, S., Bonneau, G.P. and Hagen, H.
Substructure Topology Preserving Simplification of Tetrahedral Meshes, Topological Methods in Data Analysis and Visualization, Springerverlag, p. 55-66

Dirk Zeckzer, Fang Chen, Hans Hagen
Computing an Optimal Layout for Cone Trees. In Hans Hagen, editor, Scientific Visualization: Advanced Concepts, volume 1 of Dagstuhl Follow-Ups, pages 11–29. Schloss Dagstuhl–Leibniz-Zentrum für Informatik, Dagstuhl, Germany, 2010.

Hummel, M., Garth, C., Hamann, B., Hagen, H., and Joy, K. I.
IRIS: Illustrative Rendering of Integral Surfaces, IEEE Transactions on Visualization and Computer Graphics, vol. 16, no. 6, pp. 1319-1328, Nov./Dec. 2010 PDF

Younis Hijazi, Aaron Knoll, Mathias Schott, Andrew Kensler, Charles Hansen, and Hans Hagen.
CSG Operations of Arbitrary Primitives with Interval Arithmetic and Real-Time Ray Casting. "Advanced Topics in Visualization", proceedings of Dagstuhl Scientific Visualization Workshops, Schloss Dagstuhl 2010 PDF

O Rübel, Sean Ahern, E. Wes Bethel, Mark. D Biggin, Hank Childs, Estelle Cormier-Michel, Angela DePace, Michael B. Eisen, Charless C. Fowlkes, Cameron G. R. Geddes, Hans Hagen, Bernd Hamann, Min-Yu Huang, Soile V. E. Keränen, David W. Knowles, Cris L. Lue
Coupling Visualization and Data Analysis for Knowledge Discovery from Multi-dimensional Scientific Data." In Elsevier, Procedia Computer Science, Volume 1, Issue 1, Proceedings of International Conference on Computational Science, ICCS 2010, May 2010

E. Deines, M. Hering-Bertram, J. Mohring, J. Jegorovs, and H. Hagen
Audio-visual Virtual Reality System for Room Acoustics, In Scientific Visualization: Advanced Concepts, Dagstuhl Follow-Ups 2010. p. 303- 320

2009

Langbein,M., Hagen,H.
A Generalization of Moment Invariants on 2D Vector Fields to Tensor Fields of Arbitrary Order and Dimension(G. Bebis et al. (Eds.): International Symposium on Visual Computing (ISVC) 2009, Part II, LNCS 5876, pp. 1151--1160. Springer, Heidelberg (2009)

Deller, M., Thelen, S., Steffen, D., Olech, P.S., Ebert, A., Malburg, J., Meyer, J.
A Highly Scalable Rendering Framework for Arbitrary Display and Display-in-Display Configurations. In Proceedings of the 2009 International Conference on Computer Graphics and Virtual Reality (CGVR), pp. 164-170, 2009.

Olech, P., Middel, A., Langbein, M., Thelen, S., Ebert, A., Meyer, J., Hagen, H.
Enhancing the planner’s toolkit – New display technologies for planning support. At International Urban Planning and Environment Association (IUPEA) 8th International Symposium (UPE8). Kaiserslautern, Germany, 2009.

Thelen S., Meyer J., Ebert A., Hagen H.
A 3D Human Brain Atlas. Modelling the Physiological Human. Proceedings of the second 3D Physiological Human Workshop, 3DPH 2009, Zermatt, Switzerland, November 29 -- December 2, 2009, Springer. ISBN: 978-3-642-10468-8

Harald Obermaier, Martin Hering-Bertram, Jörg Kuhnert, Hans Hagen
Volume Deformations in Grid-Less Flow Simulations. In Computer Graphics Forum (EuroVis 2009), Vol. 28, No. 3, pp. 879-886.

Knoll, A., Hijazi, Y., Westerteiger, R., Schott, M., Hansen, C. and Hagen, H.
Volume Ray Casting with Peak Finding and Differential Sampling, IEEE Transactions on Visualization and Computer Graphics, 15(6), 2009 (Proceedings of IEEE Vis 09) PDF

Thelen, S., Meyer, J., Middel, A., Olech, P., Ebert, A., Hagen, H.
Tag-Based Interaction with Large High-Resolution Displays. Proceedings of the 4th IASTED International Conference on Human-Computer Interation (IASTED-HCI). November 22-24, St. Thomas, Virgin Islands, 2009, USA.

P. Keller, O. Kreylos, Marek Vanco, M. Hering-Bertram, Louise Kellogg, E. S. Cowgill, B. Hamann and H. Hagen
Extracting and Visualizing Structural Features Within Environmental Point Cloud LiDaR Data Sets, accepted in the Springer book "Topological Data Analysis and Visualization: Theory, Algorithms and Applications" (TopoInVis 2009 follow-up).

Middel, A., Guhathakurta, S., Hagen, H., Olech, P., Hoepel, F.
Visualizing Future 3D Neighbourhoods in Phoenix: An Application Incorporating Empirical Methods with Computational Graphics. In M. Batty and L. Hui (Eds.): Virtual Geographic Environments. Beijing, China, Science Press. pp. 87 - 102, 2009.

Middel, A., Olech, P., Hagen, B.
Re-Tooling Urban Planners - Google Earth as Visualization Tool for Sustainable Planning. At Computers in Urban Planning and Urban Management (CUPUM 2009), Hong Kong, China, 2009.

Olech, P., Thelen, S., Middel, A., Ebert, A., Meyer, J., Hagen H.
Digital representation of environment data using advanced display technologies. ISDE6 - The 6th International Symposium on Digital Earth. Beijing, China, 2009.

Robert J. Moorhead II, Yanlin Guan, Hans Hagen, Sven Böttger, Natallia Kotava, Christian Wagner
Illustrative visualization: interrogating triangulated surfaces. Computing, Volume 86, Numbers 2-3, pp.131-150, Springer Wien, 2009.

K. Wu, S. Ahern, E. W. Bethel, J. Chen, H. Childs, E. Cormier-Michel, C. Geddes, J. Gu, H. Hagen, B. Hamann, W. Koegler, J. Lauret, J. Meredith, P. Messmer, E. Otoo, V. Perevoztchikov, A. Poskanzer, Prabhat, O. Rübel, A. Shoshani, A. Sim, et al.
"FastBit: Interactively Searching Massive Data." In Journal of Physics Conference Series, Proceedings of SciDAC 2009.

E. W. Bethel, C. Johnson, S. Ahern, J. Bell, P.-T. Bremer, H. Childs, E. Cormier-Michel, M. Day, E. Deines, T. Fogal, C. Garth, C. G. R. Geddes, H. Hagen, B. Hamann, C. Hansen, J. Jacobsen, K. Joy, J. Krüger, J. Meredith, P. Messmer, G. Ostrouchov, et al
Occam’s Razor and Petascale Visual Data Analysis, Journal of Physics Conference Series, Proceedings of SciDAC 2009

E. Wes Bethel, Oliver Rübel, Prabhat, Kesheng Wu, Gunther H. Weber, Valerio Pascucci, Hank Childs, Ajith Mascarenhas, Jeremy Meredith, and Sean Ahern
Modern Scientific Visualization is More than Just Pretty Pictures." In: Numerical Modeling of Space Plasma Flows: Astronum-2008 (Astronomical Society of the Pacific Conference Series).

Michael Schlemmer, Ingrid Hotz, Bernd Hamann, Hans Hagen
Comparative Visualization of Two-Dimensional Flow Data Using Moment Invariants. Proceedings of the Vision, Modeling, and Visualization Workshop 2009, pp. 255-264.

Ingo Wietzel, Hans Hagen, Gerhard Steinebach
Augmented Reality and Immersive Scenarios in Urban Planning. In H. Hagen, S. Guhathakurta, G. Steinebach (eds.): Visualizing Sustainable Planning, pp. 81-90, 2009, doi: 10.1007/978-3-540-88203-9_5. BibTeX

M. Chen, D. Ebert, H. Hagen, R. S. Laramee, R. van Liere, K.-L. Ma, D. W. Ribarsky, G. Scheuermann, D. Silver
Data, Information, and Knowledge in Visualization, Computer Graphics and Visualization 29, 2009.

Garth, C., Guo-Shi, L. Tricoche, X., Hansen, C., Hagen, H.
Visualization of Coherent Structures in Transient 2D Flows, in Mathematics and Visualization, 2009

K Wu, S Ahern, E W Bethel, J Chen, H Childs, E Cormier-Michel, C Geddes, J Gu, H Hagen, B Hamann, W Koegler, J Lauret, J Meredith, P Messmer, E Otoo, V Perevoztchikov, A Poskanzer, Prabhat, O Rübel, A Shoshani, A Sim, K Stoc
FastBit: interactively searching massive data, Journal of Physics: Conference Series Volume 180, Number 1

Harald Obermaier, Martin Hering-Bertram, Jörg Kuhnert, Hans Hagen
Volume Deformations in Grid-Less Flow Simulations, Volume 28, Issue 3, pages 879–886, 2009

Weber,G. H., Rübel, O., Huang, M.-Y., DePace, A. H., Fowlkes,C. C., Keränen, S. V. E., Luengo Hendriks, C. L., Hagen, H., Knowles,D. W., Malik, J., Biggin, M. D., and Hamann, B.
Visual exploration of three-dimensional gene expression using physical views and linked abstract views. IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB), Vol.6, issue 2, pp. 296-309, April-June 2009.

Rübel, O., Geddes, C.G.R., Cormier-Michel, E., Wu, K., Prabhat, Weber, G. H., Ushizima, D. M., Messmer, P., Hagen, H., Hamann, B., Bethel, E. W.
Automatic Beam Path Analysis of Laser Wakefield Particle Acceleration Data; IOP Computational Science & Discovery

Knoll, A., Hijazi, Y., Kensler, A., Schott, M., Hansen, C. and Hagen, H.
Fast Ray Tracing of Arbitrary Implicit Surfaces with Interval and Affine Arithmetic. Comput. Graph. Forum 28(1), pp. 26-40, 2009.

Brian Worden, Claudia Baltes, Inga Scheler, Paul Müller and Hans Hagen
Accounting system for heterogeneous IP-networks (IPNA) implemented at Kaiserslautern University, Visualization and Monitoring of Network Traffic, http://drops.dagstuhl.de/opus/volltexte/2009/2155/

Petsch, S., Heischbourg, L., Müller, K., Kamel, N., Guhathakurta, S., and Hagen, H.
Indicators of Urban Sprawl - A three-dimensional visualization. UPE 8 (8th International Conference on Urban Planning and Environment, March 23rd- 26th, 2009) (Poster)

Petsch, S., Heischbourg, L., Müller, K., Guhathakurta, S., and Hagen, H.
Modelling, Monitoring, and Visualizing Carbon Footprints at the Urban Neighbourhood Scale. UPE 8 (8th International Conference on Urban Planning and Environment, March 23rd- 26th, 2009)

Aaron Knoll, Rolf Westerteiger and Hans Hagen
An Evaluation of Peak Finding for DVR Classification of Biological Data. Proceedings of the 2009 Workshop on Visualization in Medicine and Life Sciences (VMLS 09) PDF

Petsch, S., Heischbourg, L., Müller, K., Guhathakurta, S., and Hagen, H.
Monitoring und Visualisierung von Carbon Footprints im urbanen Raum, REAL CORP 2009 (April 22th - 25th), Online Proceedings, availaible at: http://www.corp.at/archive/CORP2009_68.pdf

Petsch, S., Heischbourg, L., Müller, K., Guhathakurta, S., and Hagen:
Visualizing indicators of suburbanizations by using surfaces and flexible structures; In Proceedings of "CUPUM 2009", June 16th-18th, 2009, Hongkong, CD-ROM

Scheler, I.; Hagen, H.
Mofist – Mobile field survey tool for conversion areas, Conference Proceedings of CORP 2009 (22.-24.4.2009), Sitges, Spain

E. Deines, F. Michel, M. Hering-Bertram, J. Mohring, and H. Hagen
Simulation and Visualization of Indoor Acoustics Using Phonon Tracing, In G. Steinebach, S. Guhathakurta, and H. Hagen (Eds.), Visualizing Sustainable Planning, Springer, Berlin Heidelberg, 2009, pp. 147-156

2008

Hagen, H., Ebert, A.
Knowledge- and Context-sensitive Visualization Techniques for Immersive Environments. Keynote at the Knowledge Assisted Visualization (KAV) workshop, IEEE VisWeek 2008, Columbus, OH, 2008.

Middel, A., Pahle, R., Olech, P., Hagen, H.
Policy-Driven Visualization of Urban Forms for Planning Support. In IEEE Visualization, VisWeek 08 Conference Compendium. Columbus, OH, USA, pp. 40 - 41, 2008.

Ebert, A., Thelen, S., Olech, P., Hagen, H.
An Enhanced Tiled HighRes Display Wall. In IEEE Visualization, VisWeek 08 Conference Compendium. Columbus, OH, USA, pp. 32 - 33, 2008.

Ushizima D.M., Rübel, O., Prabhat, Weber G,H., Bethel E.W., Aragon C.R., Geddes C.G.R., Cormier-Michel E. Hamann B., Messmer P., Hagen H.
Automated analysis for detecting beams in laser wakefield simulations, Seventh International Conference on Machine Learning and Applications (ICMLA'08), San Diego, CA, 11-13 Dec. 2008

Rübel, O., Prabhat, Wu K., Childs H., Meredith J. Geddes C.G.R., Cormier-Michel E., Ahern S. Weber G.H., Messmer P., Hagen H., Hamann B. and Bethel E.W.
High Performance Multivariate Visual Data Exploration for Extremely Large Data, SuperComputing 2008 (SC08), Austin TX, November 15-21, 2008

E. Bethel, O. Rübel, G. H. Weber, B. Hamann, H. Hagen
Visualization and Analysis of 3D Gene Expression Data. Lawrence Berkeley National Laboratory, 2008, url: http://escholarship.org/uc/item/4189x84k.

Knoll, AaronAuthors: Aaron Knoll, Younis Hijazi, Andrew Kensler, Mathias Schott, Charles Hansen and Hans Hagen
Fast and Robust Ray Tracing of General Implicits on the GPU; University of Utah Technical Report #UUSCI-2007-014, 2008

Hijazi, YounisAuthors: Younis Hijazi, Aaron Knoll, Mathias Schott, Andrew Kensler, Charles Hansen and Hans Hagen
CSG operations of arbitrary primitives with inclusion arithmetic and real-time ray tracing; SCI Technical Report, No. UUSCI-2008-008, University of Utah School of Computing

Oliver Rübel , Kesheng Wu , Hank Childs , Jeremy Meredith , Peter Messmer , Hans Hagen , Bernd Hamann , E. Wes Bethel
Application of High-performance Visual Analysis Methods to Laser Wakefield Particle Acceleration Data,

Groß, MatthiasCo Authors: Hans Hagen, Franz-Josef Pfreundt
Interactive SIMD Ray Tracing for Large Deformable Tetrahedral Meshes; IEEE/EG Symposium on Interactive Ray Tracing 2008

Bobach, T. and Umlauf, G.
Natural neighbor concepts in scattered data interpolation and discrete function approximation. In: H. Hagen, M. Hering-Bertram, C. Garth (eds.) GI Lecture Notes in informatiacs, Visualization of Large and Unstructured Data Sets, 23-35, 2008.

Meier, H., Schlemmer, M., Wagner, C., Kerren, A., Hagen, H., Kuhl, E., and Steinmann P.:
Visualization of Particle Interactions in Granular Media. In: IEEE Transactions on Visualization and Computer Graphics, Vol. 14, No. 5, September/October 2008, pp.1110-1125.

Reis, G., Zeilfelder F., Hering-Bertram, M., Farin, G., and Hagen, H.:
High-Quality Rendering of Quartic Spline Surfaces on the GPU. In: IEEE Transactions on Visualization and Computer Graphics, Vol. 14, No. 5, September/October 2008, pp.1126-1139.

Dirk Zeckzer, Leon Schröder, Robert Kalcklösch, Hans Hagen, and Timo Klein
Analyzing the reliability of communication between software entities using a 3D visualization of clustered graphs. In Proceedings of the 4th ACM Symposium on Software Visualization (Ammersee, Germany, September 16 - 17, 2008). SoftVis '08. pp. 37-46, ACM, New York, 2008.

Deller, M., Agne, A., Ebert, A., Dengel, A., Hagen, H., Klein, B., Bender, M., Bernardin, T., Hamann, B.
Managing a Document-Based Information Space. ACM’s International Conference on Intelligent User Interfaces (in cooperation with AAAI), 2008

Michel, F., Wacker, P., Strupp, S., and Hagen, H.
NoiseVis 3D: A Framework for Interactive 3D Traffic Noise Visualization, n Proceedings of IADIS International Conference on Computer Graphics and Visualization CGV2008, Amsterdam, Netherlands, July 2008.

Bellmann, J., Michel, F., Deines, E., Hering-Bertram, M., Mohring, J., and Hagen, H.
Sound tracing: rendering listener specific acoustic room properties, Computer Graphics Forum , Proceedings of Eurovis 2008, vol. 27, no. 3, 2008, pp. 943-950

Petsch, S., Heischbourg, L., Müller, K., Kamel, N., Guhathakurta, S., and Hagen, H.
Visualizing Urban Sprawl. IEEE VIS Conference, Ohio, USA, 2008 (Poster)

Scheler, I.; Hagen, H.
Generalized Voronoi-Diagrams in Urban Planning; MMCS,Mathematical Methods for Curves and Surfaces, Tonsberg, Norway, Juli 2008

2007

P. Keller, M. Bertram, M. Duchaineau and H. Hagen.
Knowledge-assisted analysis of time-varying volumetric simulation data

P. Keller, M. Bertram, and H. Hagen.
Modeling and visualization of time-varying topology transitions guided by hyper reeb graph structures

M. Schlemmer, M. Heringer, F. Morr, I. Hotz, M. Hering-Bertram, C. Garth, W. Kollmann, B. Hamann, H. Hagen
Moment Invariants for the Analysis of 2D Flow Fields. IEEE Transactions on Visualization and Computer Graphics 13(6): 1743-1750, 2007, doi: 10.1109/TVCG.2007.70579. BibTeX

Knoll, A., Hijazi, Y., Kensler, A., Schott, M., Hansen, C., and Hagen, H.
Fast and Robust Ray Tracing of General Implicits on the GPU. University of Utah Technical Report #UUSCI-2007-014, Sep. 2007.

Schmitz, N., Wettach, J., Deines, E., Dannenmann, P., Bertram, M., Berns, K., and Hagen, H.
Simulation and Visualization of Indoor-Acoustics for Robot Control 9th IASTED International Conference on Computer Graphics and Imaging, Februrary, 13-15, Innsbruck, Austria, 2007, pp. 100-107

G.-M. Nielson, H. Hagen, K. Lee
Implicit fitting of point cloud data using radial hermite basis functions. Computing 79(2-4): 301-307, 2007, doi: 10.1007/s00607-006-0206-y. BibTeX

Huang, Min-Yu, Rübel, O., Weber, G.H., Luengo Hendriks, C.L., Biggin, M.D., Hagen, H. and Hamann, B.
Segmenting gene expression patterns of early-stage Drosophila embryos; o appear in: Linsen, L., Hagen, H. and Hamann, eds., Mathematical Methods for Visualization in Medicine and Life Sciences, Springer-Verlag, Heidelberg, Germany.

Hijazi, YounisCo-authors: Hans Hagen, Charles Hansen and Kenneth I. Joy
Why Interval Arithmetic is so useful; Second Annual Workshop of DFG's International Research Training Group

Meyer, DanielCo-Authors: T.Sommer, M.Thomas, T.G.Schmitt, H.Hagen
Result of long-term pollution-load simulations of constructed wetlands for CSO treatment; Wetland Pollutant Dynamics and Control - WETPOL (Tartu, Estonia)

M. Gross, C. Lojewski, H. Hagen
A Visualization Framework for Time Dependent Metal Casting Simulations. IEEE Symposium on Interactive Ray Tracing 2007, RT '07, pp. 171-176, doi: 10.1109/RT.2007.4342606. BibTeX

Knoll, A., Hijazi, Y., Hansen, C., Wald, I., and Hagen, H.
Interactive Ray Tracing of Arbitrary Implicits with SIMD Interval Arithmetic. Proceedings of the 2nd IEEE/EG Symposium on Interactive Ray Tracing, pp. 11-18, 2007.

Mohr, RouvenAuthors: Rouven Mohr, Tom Bobach, Younis Hijazi, Gerd Reis, Paul Steinmann and Hans Hagen
Comparative Tensor Visualization within the Framework of Consistent Time-Stepping Schemes; Second Annual Workshop of DFG's International Research Training Group

Garth, C., Gerhardt, F., Tricoche, X,. Hagen, H.
Efficient Computation and Visualization of Coherent Structures in Fluid Flow Applications

Garth, C., Li, G.-S., Tricoche, X., Hansen, C. D., and Hagen, H.
Visualization of Coherent Structures in Transient Flows, Topo in Vis Conference

Schlemmer, M., Hotz, I., Hamann, B., and Hagen, H.
Priority Streamlines: A context-based Visualization of Flow Fields.
In Proceedings of the 9th Eurographics/IEEE VGTC Symposium on Visualization (EuroVis’07), Norrköping, Sweden, May 2007.


Christoph Garth, Robert Laramee, Xavier Tricoche, Jürgen Schneider, Hans Hagen
Extraction and Visualization of Swirl and Tumble Motion from Engine Simulation Data, in Topology-Based Methods in Visualization, Mathematics and Visualization, 2007, pp. 121-135,

Groß, M., Lojewski, C., Bertram, M., Hagen, H.
Fast implicit kd-trees: Accelerated isosurface ray tracing and maximum intensity projection for large scalar fields, IN PROCEEDINGS OF COMPUTER GRAPHICS AND IMAGING (CGIM), 2007

Gerhard Steinebach, Hans Hagen, Simone Allin and Inga Scheler
Objective function to generate a planning alternative; Urban Planning and Environment (UPE 7) Symposium; Bangkok,2007

P. Keller, M. Bertram, and H. Hagen.
Reverse engineering with subdivision surfaces. Computing - Special issue on Geometric Modeling (Dagstuhl 2005), Volume 79 Issue 2, April 2007 .

G. Wagner, P. Keller, F. Michel, M. Bertram, D. Ostermayer, and H. Hagen.
Continuous improvement process in virtual reality; Proceedings of Spring Conference on Computer Graphics (SCCG) 2007.

Elke Moritz, Hans Hagen, Thomas Wischgol, Joerg Meyer
Usability of multiple degree-of-freedom input devices and virtual reality displays for interactive visual data analysis, VRST '07 Proceedings of the 2007 ACM symposium on Virtual reality software and technology Pages 243-244

Deines, E., Michel, F., Hering-Bertram, M., Mohring, J., Hagen, H.
Simulation, Visualization and Virtual Reality based Modeling of Room Acoustics (invited paper) in Proceedings of 19th International Congress on Acoustics, September 2-7, 2007, Madrid, Spain

Michel, F., Deines, E., Hering-Bertram, M. Garth, C., Hagen, H.
Listener-based Analysis of Surface Importance for Acoustic Metrics, IEEE Trans Vis Comput Graph. 2007 Nov-Dec;13(6):1680-7

Thelen, S., Bierz, T., Müller, B., Hagen, H., Ebert, A., Friauf, E., Meyer, J.
A Framework for the Visualization of Brain Structures; Hans Hagen, Martin Hering-Bertram, Christoph Garth (eds.) Visualization of Large and Unstructured Data Sets, Kaiserslautern, 2007. GI-Edition, Lecture Notes in Informatics (LNI), Seminars Vol. S-4, IS

Hijazi, Y., Hagen, H., Hansen, C., and Joy, K. I.
Why Interval Arithmetic is so useful. In H. Hagen, M. Hering-Bertram, Ch. Garth (Eds.) : Visualization of Large and Unstructured Data Sets, pp. 148-163, 2007.

Mohr, R., Bobach, T., Hijazi, Y., Reis, G., Steinmann, P., and Hagen, H.
Comparative Tensor Visualization within the Framework of Consistent Time-Stepping Schemes. In H. Hagen, M. Hering-Bertram, Ch. Garth (Eds.) : Visualization of Large and Unstructured Data Sets, pp. 36-53, 2007.

Meyer, D., Sommer, T., Thomas, M., Schmitt, T.G., and H. Hagen, H.
Development of a long-term pollution-load model to simulate CWs for CSO treatment. Submitted to the Wetland Pollutant Dynamics and Control - WETPOL, 16.09.07 - 20.09.2007 in Tartu, Estonia

2006

Hagen, H., Kerren, A., and Dannenmann, P.
Visualization of Large and Unstructured Data Sets Proceedings of the first workshop of DFG's International Research Training Group "Visualization of Large and Unstructured Data Sets - Applications in Geospatial Planning, Modeling, and Engineering", June 14-16, 2006, Dagstuhl, Germany, GI-Edition, Lecture Notes in Informatics, Seminars Series, Volume S-4,2006. ISBN 978-3-88579-438-7.

Hagen, H., Steinebach, G., Scheler, I., and Ruby, M.
IKone - Computergestützte Auswertung von Konversionsflächen mit Hilfe von Voronoi Diagrammen, CORP 2006, Wien, Österreich

Steinebach, G., Hagen, H., Scheler, I., and Ruby, M.
Visualisierung des Planungsablaufes am Beispiel von Konversionsflächen, AGIT 2006, Salzburg, Österreich

Hagen, H., Steinebach, G., Scheler, I., and Ruby, M.
ICONE -computer supported evaluation of military conversion areas using Voronoi Diagrams, World Planning Schools Congress, July 12-16 2006, Mexico City, Mexico

Schlemmer, M., Hagen, H., Hotz, I., and Hamann, B.
Clifford Pattern Matching for Color Image Edge Detection - published in Hans Hagen, Andreas Kerren, and Peter Dannenmann (Eds.), Visualization of Large and Unstructured Data Sets, GI-Edition Lecture Notes in Informatics (LNI), Vol. S-4, 2006.

Hagen, H., Wadlé, M., Scheler, I. and Ruby, M.
DaMaViS Datenmanagement- und Visualisierungssystem, AGIT 2006, Symposium und Fachmesse für Angewandte Geoinformatik, Österreich

Deines E., Michel F., Bertram M., Hagen H., and Nielson G.M.
Visualizing the phonon map; Proceedings of Eurovis 2006, pp. 291-298

Deines E., Bertram M., Mohring J., Jegorovs J., Michel F., Hagen G., and Nielson G.M.
Comparative Visualization for Wave-based and Geometric Acoustics; Proceedings of IEEE Visualization 2006, pp. 1173-1180

Meier, H. A., Kuhl E., Steinmann P. In H. Hagen, A. Kerren, P. Dannenmann (Eds.), Visualization of Large and Unstructured Data Sets Proceedings of the first workshop of DFG's International Research Training Group
On Discrete Modeling and Visualization of Granular Media; GI-Edition, Lecture Notes in Informatics

Deller, M., Ebert, A., Bender, M., Hagen, H.
Flexible Gesture Recognition for Immersive Virtual Environments. 10th International Conference on Information Visualisation (IV’06), London, 2006

Nielson, G., Hagen, H., Lee, K., and Huang, A.
Split’ N Fit: Adaptive Fitting of Scattered Point Cloud Data, in: Georges-Pierre Bonneau, Thomas Ertl and Gregory M. Nielson (ed.): Scientific Visualization: The Visual Extraction of Knowledge from Data, Springer, 2006, pp. 97-114

Ebert, A, Hagen, Ginkel, I., and Hagen, H.
Rule-based Morphing Techniques for Interactive Clothing Catalogs, in: Georges-Pierre Bonneau, Thomas Ertl and Gregory M. Nielson (ed.): Scientific Visualization: The Visual Extraction of Knowledge from Data, Springer, 2006, pp. 329-344

Legen v, R., Marrow, P., Bähr, T., Hagen, H., Bonsma, E., and Hoile, C.
Component Based Visualisation of DIET Applications, in: Georges-Pierre Bonneau, Thomas Ertl and Gregory M. Nielson (ed.): Scientific Visualization: The Visual Extraction of Knowledge from Data, Springer, 2006. pp. 385-394

Kerren A., Hagen H. and Dannenmann P.
Visualization of Large and Unstructured Data Sets; GI-Edition, Lecture Notes in Informatics (LNI), Seminars Vol. S-4

Reis, G., Lappe, B., Köhn, S., Weber, Ch., Bertram, M., and Hagen, H.:
Towards a Virtual Echocardiographic Tutoring System, Proceedings of the 2006 International Workshop on

Rübel, O., Weber, G.H., Keraenen, S.V.E., Fowlkes, C.C., Luengo Hendriks, C.L., Simirenko, L., Shah, N.Y., Eisen, M.B., Biggin, M.D., Hagen, H., Sudar, J.D., Malik, J., Knowles, D.W. and Hamann,
PointCloudXplore: Visual analysis of 3D gene expression data using physical views and parallel coordinates, in Data Visualization 2006 (Proceedings of EuroVis 2006), Eurographics Association, Aire-la-Ville, Switzerland, pp. 203-210

I. Scheler, M. Ruby, H. Hagen, G. Steinebach
Generic approach to develop a planning alternative, Brownfields Nov. 2006, Boston, US

Hagen, H., Garth, C.
An introduction to tensors, Visualization and Processing of Tensor Fields, Mathematics and Visualization, 2006, Part 1, 3-13,

Ingrid Hotz, Louis Feng, Hans Hagen, Bernd Hamann, Kenneth Joy
Tensor field visualization using a metric interpretation,Visualization and Processing of Tensor Fields, 2006,

Aurich, J.C., Hagen, H., Ostermayer, D., and Bertram, M.
VR-unterstützter KVP-Workshop, wt Werkstattstechnik online, Springer VDI Verlag, No. 1/2, 2006, pp. 36-41. PDF

2005

Bierz, T., Dannenmann, P., Hergenröther, K., Bertram, M., Barthel, H., Scheuermann, G., and Hagen, H.
Getting in Touch with a Cognitive Character, Proceedings of Worldhaptics '05, March, 18-20, Pisa, Italy, 2005, pp. 440-445.

Jessl J., Bertram M., and Hagen H.
Web-based progressive geometry transmission using subdivision-surface wavelets, Proceedings of Web3D 2005, pp. 29-36. PDF

Hagen, H., Münchhofen, M., Ruby, M., Scheler, I., Wadlé, M., and Michel, F.
DaMaViS - Data Management and Visualization System, WSCG 2005, Plzen, Czech Republic.

Hagen, H., Steinebach, G., Münchhofen, M., Ruby, M., Scheler, I., Wadlé, M., and Michel, F.
Datenmanagementsystem für die Stadtplanung, CORP2005, TU Wien, Österreich.

Bertram M., Reis G., van Lengen R. H., Köhn S., and Hagen H.
Non-manifold mesh extraction from time-varying segmented volumes used for modeling a human heart, Eurovis 2005, pp. 1-10. PDF

Hagen, H., Münchhofen, M., and Michel, F.
Interactive Reconstruction of 3D Models for Virtual Walkthroughs, in Proceedings of CEMVRC05, pp. 101-105, Prag, Czech Republic, 2005

Schlemmer, M., Hotz, I., Natarajan, V., Hamann, B., and Hagen, H.
Fourier transformation for unstructured vector field data. In: Papadopoulos, P., Eiseman, P.R., Haeuser, J., Soni, B.K. and Thompson, J.F., eds., Proceedings of Ninth International Conference on Numerical Grid Generation International Society of Grid Generation, College of Engineering, San Jose State University, San Jose, California, pp. 101-110, 2005. PDF

P. Keller, M. Bertram and H. Hagen.
Multiresolution surface reconstruction from scattered data based on hybrid meshes

Bertram, M., Deines, E., Mohring, J., Jegorovs J. and Hagen H.
Phonon tracing for Auralization and Visualization of Sound, Proceedings of IEEE Visualization 2005, pp. 151-158.

Hagen, H., Schneider, M., Schlemmer, M., Ruby, M., and Scheler, I.
Fast Voronoi Modeling - Computing, Special Issue on Geometric Modeling, Dagstuhl 2005

Hagen, H., Ruby, M. and Scheler, I.
Information Clustering in the context of Urban Planning, ISGI 2005, International Symposium on Generalization of Information, Berlin

Ebert, A., Deller, M., Bender, M., Hagen, H., Agne, St., and Klein, B.
@VISOR – Adaptive Dynamic Visual Semantic Organizing IEEE Visualization 2005 (Interactive Demo), Minneapolis, USA, 2005

Hagen,H., Ruby,M., Scheler, I., and Schneider, M.
Topology-preserving distance functions for tesselations, Visualization, Imaging & Image Processing (VIIP) 2005, Benidorm, Spanien

Hagen H., Münchhofen M., Ruby M., Scheler I., Michel F.
Interaktive Rekonstruktion von Gebäudemodellen für virtuelle Rundgänge; AGIT 2005, Salzburg, Österreich

D. Bartz, H. Hagen, V. Interrante, M. Kwan-Liu, B. Preim
Illustrative rendering techniques for visualization: Future of visualization or just another technique? IEEE VIS 05, pp. 715-718, 2005, doi: 10.1109/VISUAL.2005.1532863. BibTeX

Laramee, R. S., Garth, C., Doleisch, H., Schneider, J., Hauser, H., Hagen. H.
Visual analysis and exploration of fluid flow in a cooling jacket, Visualization, 2005. VIS 05. IEEE

Michael Schlemmer , Ingrid Hotz , Vijay Natarajan , Bernd Hamann , Hans Hagen
Fast Clifford Fourier Transformation for Unstructured Vector Field Data

2004

Köhn, S., Lengen van, R. H., Reis, G., Bertram, M., and Hagen, H.
VES: virtual echocardiography system,IASTED VIIP 2004 pp. 465-471. PDF

Hans Hagen, Andreas Disch, Jochen Ehret, Ralf Klein, Sasche Köhn, Dirk Zeckzer, and Michael Münchhofen
Visual Inspection Methods for Quality Control in Automotive Engineering. In IEEE Conference on Visualization, Austin, Texas, USA, October 10-15, Poster Compendium pp. 79-80, 2004.

Ebert, A., Ehret, J., Schuchardt, L., Steinmetz, H., and Hagen, H.
Scalable Information Visualization on Mobil Devices for Efficient Management,IASTED International Conference on Visualization, Imaging and Image Processing (VIIP 2004), Marbella, Spain, 2004

Bähr, J.-T., Dannenmann, P., Wagner, D., and Hagen, H.
A Context- and User-Driven Configuration System for the Visualization of Structures in Knowledge Management, Proceedings of the 4th IASTED International Conference on Visualization, Imaging, and Image Processing (VIIP 04) September 6 - 8, 2004, Marbella, Spain

Reis G., Bertram M., van Lengen R.H., and Hagen H.
Adaptive volume construction from ultrasound images of a human heart, VisSym'04, Joint Eurographics and IEEE TCVG Symposium on Visualization, 2004, pp. 321-330. PDF

Reis G., Bertram M., van Lengen R.H., and Hagen H.,
4D Rekonstruktion kardiologischer Ultraschalldaten (in German), BVM 2004, pp. 80-83. PDF

Hagen, H., Steinebach, G., Münchhofen, M., Ruby, M., Scheler, I., and Wadlé, M.
DaMI - Data Management for Multimedial Information Systems, Proceedings of IEEE Visualization 2004.

Ehret, J., Ebert, A., Schuchardt, L., Steinmetz, H., and Hagen, H.
Context-adaptive Mobile Visualization and Information Management, IEEE Visualization, Austin, Texas, USA, 2004.

A. Divivier, R. Trieb, A. Ebert, H. Hagen, C. Groß, A. Fuhrmann, V. Luckas , J. L. Encarnação, E.Kirchdörfer, M. Rupp, S. Vieth, S. Kimmerle, M. Keckeisen, M. Wacker, W. Straßer, M. Sattler, R. Sar
Virtual Try-On: Topics in Realistic, Individualized Dressing in Virtual Reality. In Proceedings of the Virtual and Augmented Reality Status Conference 2004, key: C34-P-13880. BibTeX

Hotz, I., Feng, L., Hagen, H. Hamann, B., Joy, K., Jeremic, B.
Physically based methods for tensor field visualization, Visualization, 2004. IEEE

Hotz, I. and Hagen, H.
"Isometric Embedding fr a Discrete Metric", in: Brunnett - Hamann - Müller - Linsen (eds.), "Geometric Modeling for Scientific Visualization", Springer, New York 2004, pp. 19-38

2003

Ebert, A.; Ginkel, I.; and Hagen, H.
Rule-based Morphing Techniques for Interactive Clothing Catalogs.
In: G.P. Bonneau, T. Ertl, G. Nielson (eds.), The visual extraction of knowledge from data, 2003, 329-343.


Barthel, H., Dannenmann, P., Hagen, H.
Towards a General Framework for Animating Cognitive Characters, Proceedings of the 3rd IASTED International Conference on Visualization, Imaging, and Image Processing (VIIP'03) September 8-10, 2003, Benalmádena, Spain

Bertram, B., Konkle, S., Hagen, H., Hamann, B., and Joy, K.
Terrain Modeling Using Voronoi Hierarchies, in: Hierarchicaland Geometrical Methods in Scientific Visualization, Farin, Hamann, Hagen (Hrsg.), Springer Verlag, pp. 89-98, 2003, (ISBN 3-540-43313-9) PDF

Co, C., Hagen, H., Hamann, B., Heckel, B., and Joy, K.
Hierarchical Clustering for Unstructured Volumetric Scalar Fields, in: Proceedings of IEEE Visualization 2003, pp. 325-332, 2003

Dannenmann, P. Barthel, H., and Hagen, H.
Poster: Multi Level Control of Cognitive Characters in Virtual Envirionment, Proceedings IEEE Visualization, Seattle, WA, Oct. 22-24, 2003

Dannenmann, P., and Hagen, H.
Visualizing Process Information and the health status of wastwater treatment plants - A case studey of the ESPRIT-project WaterCIME, in Data Visualization - The state of the Art, Frits Post, Gregory Nielson, Georges-Pierre Bonneau (eds.) Kluwer Academic Press, pp. 225-236, 2003

Fries, K., Meyer, J., Hagen, H., and Lindemann, B.
Correspondence analysis: visualizing property-profiles of time-dependent 3D datasets, >in Data Visualization - The state of the Art, Frits Post, Gregory Nielson, Georges-Pierre Bonneau (eds.) Kluwer Academic Press, pp.53-66, 2003

Hagen, H., Barthel, H., Ebert, A., and Bender, M.
Component-based intelligent visualizataion, in Data Visualization - The state of the Art, Frits Post, Gregory Nielson, Georges-Pierre Bonneau (eds.) Kluwer Academic Press, pp. 439-451, 2003

Tricoche, X., Scheuermann, G., and Hagen, H.
Scaling the Topology of Symmetric, Second-Order Tensor Fields, in: Hierarchicaland Geometrical Methods in Scientific Visualization, Farin, Hamann, Hagen (Hrsg.), Springer Verlag, pp. 171-184, 2003, (ISBN 3-540-43313-9)

Bertram M., Tricoche, X., and Hagen H.
Adaptive Smooth Scattered Data Approximation for Large-scale Terrain Visualization, VisSym'03, Joint Eurographics and IEEE TCVG Symposium on Visualization, 2003, pp. 177-184 & 297.

Weber, G. H., Schneider, M., Wilson, D. W., Hagen H., Hamann B., and Kutter B. L.
Visualization of Experimental Earthquake Data, in: Erbacher R. F., Chen P. C., Roberts J. C, Groehn M., Borner K., eds., Visualization and Data Analysis 2003, Proc. SPIE Vol. 5009, SPIE - The International Society for Optical Engineering, Bellingham, Washington, January 2003

Weber, G., Kreylos, O., Ligocki, T., Shalf, J., Hagen, H., Hamann, B., and Joy, K. I.
Extraction of Crack-free Isosurfaces for Adaptive Mesh Refinement Data, in: Hierarchicaland Geometrical Methods in Scientific Visualization, Farin, Hamann, Hagen (Hrsg.), Springer Verlag, pp. 19-40, 2003, (ISBN 3-540-43313-9)

Hans Hagen, Achim Ebert, Rolf Hendrik van Lengen, Gerik Scheuermann
Scientific Visualization: methods and applications, SCCG '03 Proceedings of the 19th spring conference on Computer graphics Pages 23 - 33

2002

Münchhofen, M., Scheler, I. and Hagen, H.
A Framework for Information Visualization, 3rd CODATA Euro-American Workshop on Information Visualization, Presentation and Design, Paris, 2002

Divivier, A., Ebert, A., Barthel, H., Hagen, H., and Bender, M.
Belt Design Service - A Human Factors Application, IASTED International Conference on Visualization, Imaging and Image Processing (VIIP 2002), Malaga, Spain, 2002

Divivier, A.,  Ebert, A., Bender, M., and Hagen, H.
Seat Belt Routings over Virtual Humans –  The Belt Design Service, IEEE Visualization 2002, Boston, Massachusetts, USA, 2002

Jermic, B., Scheuermann, G., Frey, J., Yang, Hamann, B., Joy, K. and Hagen, H.
Tensor visualizations in computational geomechanics, in International Journal for Numerical and Analytical Methods in Geomechanics 26:925-944, 2002

Reuther, B., Ebert, A., Müller, P., and Hagen, H.
A Powerful Communication Framework for Distributed Virtual Reality, IEEE Visualization 2002, Boston, Massachusetts, USA, 2002

Scheuermann, G. , and Hagen, H.
Vector and Tensor Visualization, in Handbook of Computer-Aided Geometric Design, G. Farin, J. Hoschek, M.-S. Kim (eds.), Elsevier, Amsterdam, 2002, 683-700

Tricoche, X., Wischgoll, T., Scheuermann, G., and Hagen, H.
Topologiy Tracking for the Visualization of Time - Dependent Two-Dimensional Flows, Computers & Graphics 26, (2002), 249-257

Weber, G.,  Scheuermann, G., Hamann, B., and Hagen, H.
Exploring Scalar Fields Using Critical Isovalues, in IEEE Visualization 2002 Proceedings, R. Moorhead, M. Gross, K.I. Joy (eds.), IEEE Computer Society, Los Alamitos, CA, 2002, 171-178

Wischgoll, T., Scheuermann, G., and Hagen, H.
Distributed Computation of Planar Closed Streamlines, in SPIE Conference on Visualization and Data Analysis, R. F. Erbacher, P. Chen, M. Gröhn, J. C. Roberts, C. M. Wittenbrink (eds.), San Jose, CA, January 2002, 238-245

Tricoche, X., Wischgoll, T., Scheuermann, G.,Hagen, H.
Topology Tracking for the Visualization of Time-Dependent Two-Dimensional Flows

2001

Hagen, H., Bähr, T., Lengen van, R.-H., and Schweikart, O.
Interlinguar in medizinischen Informationssystemen, Telemedizinführer Deutschland, Hrsg. A. Jäckel, Deutsches Medizinforum, 2001

Münchhofen, M., Scheler, I., Hergenröther, K., Hagen, H., and Weber, G.
A distributed Component-based Framework for Visualization in Virtual Environments, International Symposium on Mixed Reality (ISMR) 2001

Scheuermann, G., Frey, J., Hagen, H., Hamann, B., Jeremic, B., and Joy, K. I.
Visualization of Seismic Soils Structure Simulations, in Proceedings of IASTED International Conference on Visualization, Imaging, and Image Processing, M.H. Hamza (ed.), ACTA Press, Anaheim, 2001, pp. 78-83

Tricoche, X., Scheuermann, G., and Hagen, H.
Tensor Topology Tracking: A Visualization Method for Time-Dependent 2D Symmetric Tensor Fields, Eurographics 2001 Proceedings, Computer Graphics Forum 20(3), pp. 461-470, September 2001 [pdf]

Weber, G., Hagen, H., Hamann, B., Joy, K., Ligocki, T., Kwan-Liu Ma, and Shalf, J.
Visualization of Adaptive Mesh Refinement Data, in Proceedings of Visual Data Exploration and Analysis VIII, Volume 4302, Proceedings of SPIE-Series, pp. 121-132, 2001

Bertram, M. and Hagen, H.
Subdivision surfaces for scattered-data approximation, in: Data Visualization 2001 (Proceedings of Joint Eurographics - IEEE TCVG Symposium on Visualization 2001), Ebert, Favre, Peikert (Hrsg.), Springer 2001, pp. 55-63 & 337. PDF

Ebert, A., Divivier, A., Barthel, H., Bender, M., and Hagen, H.
Improving Development and Usage of Visualization Applications, IASTED International Conference on Visualization, Imaging and Image Processing (VIIP 2001), Marbella, Spain, 2001

Hagen, H. and Scheuermann, G.
Clifford Algebra and Flows, >in: Mathematical Methods for Curves and Surfaces, Oslo 2000, Lyche, Schumaker (Hrsg.), Vanderbilt University Press, Nashville, TN, USA, 2001, pp. 173-181

Hagen, H., Ebert, A., Lengen van, R.-H., and Scheuermann, G.
Scientific Visualization - Methods and Applications, in Informatics - 10 Years Back - 10 Years Ahead, LN 2000, Springer, Berlin, 2001, pp. 311-327

Münchhofen, M., Scheler, I., Hergenröther, K., and Hagen, H.
Diversified visualisation from www to VR, International Symposium on Virtual and Augmented Architecture, Dublin, 2001

Scheuermann,G., Bobach,T., Hagen,H., Mahrous, K., Hamann, B., Joy, K., and Kollmann, W.
A tetrahedra-based stream surface algorithm, in IEEE Visualization 2001 Proceedings, A. Varshney, T. Ertl, K. Joy (eds.), IEEE Computer Society Press, Los Alamitos, CA, 2001, 151-158

Tricoche, X., Scheuermann, G., and Hagen, H.
Continuous Topology Simplification of Planar Vector Fields, in IEEE Visualization 2001 Procedings, A. Varshney, T. Ertl, K. Joy (eds.), IEEE Computer Society Press, Los Alamitos, CA, 2001, pp. 159 - 166

Tricoche, X., Scheuermann, G., and Hagen, H.
Vector and Tensor Field Topology Simplification on Irregular Grids, in Data Visualization 2001 - Proceedings of the Joint Eurographics - IEEE TCVG Symposium on Visualization in Ascona, Switzerland, D. Ebert, J. M. Favre, R. Peikert (eds.), Springer, Wien, 2001, pp. 107-116 PDF

Tricoche, X., Scheuermann, G., and Hagen, H.
Topology-Based Visualization of Time-Dependent 2D Vector Fields, in Data Visualization 2001 (Proceedings of the Joint Eurographics - IEEE TCVG Symposium on Visualization in Ascona, Switzerland), Ebert, Favre, Peikert (Hrsg.), Springer, Wien,2001, pp. 117-126

Tricoche, X., Scheuermann, G., Hagen, H.
Scaling the Topology of Symmetric, Second-Order Planar Tensor Fields, in Proceedings of NSF/COE Lake Tahoe Workshop on Hierarchical Approximation and Geometrical Methods for Scientific Visualization, CA, 2001

Tricoche, X., Wischgoll, T., Scheuermann, G., Hagen, H. 
Vector and Tensor Field Topology Scaling on Irregular Grids, in Proceddings of ACM Eurographics & IEEE TCVG Symposium on Visualization, Ascona, Switzerland, May 2001

Weber, G., Kreylos, O., Ligocki, T., Shalf, J., Hagen, H., Hamann, B., and Joy, K. I.
Extraction of Crack-free Isosurfaces for Adaptive Mesh Refinement Data, in: Data Visualization 2001 (Joint Eurographics - IEEE TCVG Symposium on Visualization in Ascona, Switzerland), Ebert, Favre, Peikert (Hrsg.), Springer, Wien, 2001, pp. 25-34

Weber, G., Kreylos, O., Ligocki, T., Shalf, J., Hagen, H., Hamann, B., Joy, K., and Ma, K.-L.
High-quality volume rendering of adaptive mesh refinement data, in: Ertl, T., Girod, B., Greiner, G., Niemann, H. and Seidel, H.-P., eds., Vision, Modeling, and Visualization 2001, IOS Press, Amsterdam, The Netherlands, pp. 121-128, 2001

Wischgoll, T., Scheuermann, G., and Hagen, H.
Parallel Detection of Closed Streamlines in Planar Flows, IASTED International Conference on Visualization, Imaging and Image Processing, ACTA Press (2001), pp. 84-88

Wischgoll, T., Scheuermann, G., and Hagen, H.
Tracking Closed Streamlines in Time-Dependent Planar Flows, in Vision, Modeling, and Visualization 2001, T. Ertl., B. Girod, H. Niemann, H.-P. Seidel (eds.), Aka, Berlin, 2001, pp. 447-454

R. Schätzl, H. Hagen, J. F. Barnes, B. Hamann, K. I. Joy
Data-Dependent Triangulation in the Plane with Adaptive Knot Placement. In G. Brunnett, H.-P. Bieri, G. Farin (eds.): Geometric Modelling, pp. 309-321, 2001, doi: 10.1007/978-3-7091-6270-5_18. BibTeX

2000

Scheuermann, G., Hagen, H., Krüger, H., and Rockwood, A.
Visualizing critical points of arbitrary Poincare-Index, in Scientific Visualization - Dagstuhl '97, H. Hagen, G. Nielson, F. Post (eds.), IEEE Computer Society, Los Alamitos CA, 2000, pp. 277-283

Barthel, H., Bender, M., Divivier, A., Ebert, A., and Hagen, H.
A Component based Visualization Architecture, CoData 2000, Baveno, Italy

Dannenmann, P., and Hagen,H.
Visualizing Process Information and the Health Status of Wastewater Treatment Plants - A Case Study of the ESPRIT-Project WaterCIME, Proceedings of Scientific Visualization 2000, May 22-26, 2000, Schloss Dagstuhl, Germany

Fries, K., Meyer, J., Hagen, H., and Lindemann, B.
Analysis of Biomedical Image Correspondence, Matching 3-Dimensional Point Sets, in Proc. of Scientific Visualization 2000, Schloss Dagstuhl, Germany, pp. 22-26, 2000

Hagen, H. and Nawotki, A.
A Geometric Modelling Pipline, >Proceedings 9th ICGG conference, pp. 339-343, 2000

Hagen, H., Divivier, A., Barthel, H., Ebert, A., and Bender, M.
MacVis - A System Architecture for Intelligent Component-based Visualization, Workshop on New Paradigms in Information Visualization and Manipulation, Washington D.C., USA, 2000

Hagen, H.,Barthel, H.,  Ebert, A., Divivier, A., and Bender, M.
A Component- and Multi Agent-based Visualization System Architecture, IMC 2000 Workshop, Rostock, November 2000

Hotz, I. and Hagen, H.
Visualizing Geodedics, Proceedings Visualization 2000, pp. 311-318

Moritz, E., Kuester, F. Hamann, B., Joy, K. I. and Hagen, H.
Towards Immersive Clay Modelling: Interactive Modelling with Octrees, in Stereoscopic Displays and Virtual Reality Systems VII, John O. Merrit, Stephen A. Benton, Andrew J. Woods, Mark T. Bolas (eds.), Proceedings of SPIE Vol. 3957, 2000, pp. 414-422

Tricoche, X., Scheuermann, G., and Hagen, H.
A Topology Simplification Method for 2D Vector Fields, Proceedings Visualization 2000, IEEE Computer society Press, Los Alamitos, CA, October 2000, pp. 359 - 366

Tricoche, X., Scheuermann, G., and Hagen, H.
Higher Order Singularities in Piecewise Linear Vector Fields, in Cipolla - Martin (eds.:) The Mathematics of Surfaces IX, Springer London, 2000, pp. 99 - 113

1999

Hagen, H., Rockwood,
Clifford Algebra, Quaternions, and their Applications, Tutorial 4, IEEE Visualization '99, IEEE Computer Society Press, Los Alamitos, CA, 1999

Lengen van, R.-H., Bähr, T., Schweikart, O., and Hagen, H.
ReMIS - Regionales Medizin-Informationssystem, Innovationen im Klinikum `99, Kaiserslautern, November '99

Scheuermann, G., Burbach, H., and Hagen, H.
Visualizing Planar Vector Fields with Normal Component Using Line Integral Convolution, in Proceedings of IEEE Visualization '99, IEEE Computer Society Press, Los Alamitos CA, 1999, pp. 255-262

Bender, M., Hagen, H., and Seck, A.
A Client-side Approach towards Platform Independent Molecular Visualization over the World Wide Web, >in Gröller, Löffelmann and Ribarsky (eds.): Data Visualization ’99, pp. 167-178, 1999

Bender, M., Seck, A., and Hagen, H.
Using the Web as a Basis for an Efficient Platform Independent Client-driven Molecular Visualization System, >WWW8, Toronto 1999

Fiege, M., Scheuermann, G., Münchhofen, M., and Hagen, H.
Visualization of Grinding Processes, in Data Visualization `99, E. Gröller, H. Löffelmann, W. Ribarsky (eds.), Springer, Wien - New York, 1999, pp. 253-260

Franke, R., and Hagen, H.
Least square surface approximation using multiquadrics and parametric domain distortion, >CAGD 16 (1999), pp. 177-196

Klimenko, S., Nikitin, Burkin, and Hagen, H.
Visualization in string theory, > Proceedings Vis ’99

Scheuermann, G., Tricoche, X., and Hagen, H.
C1-Interpolation for Vector Field Topology Visualization, in Proceedings of IEEE Visualization 99, IEEE Computer Society Press, Los Alamitos, CA, 1999, pp. 271 - 278

Franke, R., Hagen, H.
Least squares surface approximation using multiquadrics and parametric domain distortion, Computer Aided Geometric Design Volume 16, Issue 3, March 1999, pp. 177–196

1998

Hagen, H., Hanson, A., and Scheuerman, G.
Clifford algebra, Quaternions, and their Applications, Tutorial 7, IEEE Visualization '98, IEEE Computer Society Press, Los Alamitos, CA, 1998

Scheuermann, G., Hagen, H., and Krüger, H
Vector Field Topology with Clifford Algebra, Proceedings of WSCG '98, University of West Bohemia, Pilzen, Czech Republic, 1998, pp. 347-353

Bossong, U. and Hagen, H.
Approximation and Smoothing with Spline Curves using Multicriteria Optimization Techniques, Proceedings of Spring Conference on Computer Graphics, Budmerice Castle, April 23 to 25, 1998

Hagen, H.
Surface Reconstruction based on Variational Principles, IDMME ’98, pp. 579-588

Hagen, H.
Simulation Based Surface- and Solid Modeling, in Cripps (eds.): Mathematics of Surfaces VIII, pp. 383-402, 1998

Hagen, H. and Hahmann, St.
Stability Conditions for Free Form Surfaces, Proc. of CGI’98, Hannover, 1998, pp. 41-48

Lengen, R. H. van, Meyer, J., Matzat, M., and Hagen, H.
Shadow Generation for Volumetric Data Sets, The Visual Computer, Vol. 14, No. 2, Springer, Berlin, Heidelberg, pp. 83-94, 1998

Meyer, J., Hagen, H., Lohr, C., and Deitmer, J.
Interactive Navigation through Glial Cells Computer Graphics, International (CGI ’98), Minisymposium on Scientific Visualization, Hannover, Germany, pp. 73-77, June 22- 6, 1998 (ISBN 0-8186-8445-3)

Meyer, J., Hagen, H., Lohr, C., and Deitmer, J.
Virtual Flight through Glial Cells, 31st ISATA ’98, Automotive Design and Engineering, Düsseldorf, Dieter Roller (ed.), ISATA, Germany, pp. 43-50, June 2-6, 1998 (ISBN 0-9532-5760-6)

Meyer, J., Petry, H., Hagen, H., Lohr, Ch., and Deitmer, J.
Intuitive User Interface for Interactive Rendering Workshop on Distributed Visualization Systems, >IEEE Computer Society Visualization ’98, Research Triangle Park, North Carolina (USA),pp. 20, October 17, 1998

Nawotki, A. and Hagen, H.
Surface Generation in a Simulation Based Modelling Process, in Roller (eds).: ISATA ’98, pp. 443-450

Scheuermann, G. and Hagen, H.
A Data Dependent Triangulation for Vector Fields, in Proceedings of Computer Graphics International 1998, Franz-Erich Wolter, Nicholas M. Patrikalakis (eds.), IEEE Computer Society Press, Los Alamitos CA

Scheuermann, G., Hagen, H., and Krüger, H.
An interesting class of polynomial vector fields, in Mathematical Methods for Curves and Surfaces II, Morton Daehlen, Tom Lyche, Larry L. Schumaker (eds.), Vanderbilt University Press, Nashville, 1998, pp. 429-436

Scheuermann, G., Hagen, H., and Küger, H.
Clifford algebra in vector field visualization, in Mathematical Visualization, Hans-Christian Hege and Konrad Polthier (eds.), Springer-Verlag, Heidelberg, 1998, pp. 343-351

H. Hagen, A. Nawotki
Variational Design and Parameter Optimized Surface Fitting. In G. Farin, H.-P. Bieri, G. Brunnett, T. De Rose (eds.): Geometric Modelling, pp. 121-134, 1998, doi: 10.1007/978-3-7091-6444-0_10. BibTeX

T. Schreiber, G. Brunnett, H. Hagen
Generating triangular surface meshes from large sets of unorganized 3D points. Congrès sur la numérisation 3D, design et digitalisation, création industrielle et artistique, 1998.

P. Müller, M. Gnoth, H. Hagen, R. van Lengen
Sichere Kommunikation und visuelle Datenverarbeitung im Krankenhaus. Innovationen im Krankenhaus, Westpfalz Klinikum Kaiserslautern, 1998. BibTeX

Alexa Nawotki, Hans Hagen
Simulation-Based Modeling. Approximation Theory IX: Computational aspects 2: 243-250, 1998, ISBN 0-8265-1326-3.

1997

Dannenmann, P., Nuber, Ch., Küke, R., Schielow, N., and Hagen, H.
An Integrated VR- and Simulation-Environment for Supporting the Complete Product Life Cycle of Space-Related Systems, in Hagen - Nielson - Post: Scientific Visualization - Dagstuhl ’97, pp. 37-46

Gschwind, E. and Hagen, H.
Transfinite B-Spline Interpolation with Derivatives, in: Roller, D. and Brunet, P. (eds.): CAD Systems Development, pp. 183-198, 1997

Hagen, H. and Hahmann, St.
Stability Features for Freeform Surfaces, in: Roller, D. and Brunet, P. (eds.): CAD Systems Development, Springer, pp. 157-164, 1997

Hagen, H., Hahmann, St., and Weimer, H.
Visualization of Deformation Tensor Fields, in: Nielson, G., Hagen, H., and Müller, H. (eds.): Scientific Visualization - Overviews, Methodologies, Techniques, pp. 357-371, 1997

Hagen, H., Heinz, S., and Nawotki, A
Variational Design with Boundary Conditions and Parameter Optimized Surface Fitting, in: Strasser, Klein and Rau (eds.): Geometric Modeling: Theory and Practice, pp. 3-13, Springer, 1997

Hagen, H., Heinz, S., Thesing, M., and Schreiber, Th.
Variational Design and Surface Reconstruction, Proceedings of the workshop "Geometric Constraint Solving and Applications", TU Ilmenau, 1997

Meyer, J., Gelder, S., Heiming, C., and Hagen, H.
Interactive Rendering - A Time-Based Approach, SIAM Conference on Geometric Design ’97, Nashville, Tennessee, November 3-6, 1997

Meyer, J., Gelder, S., Kretschmer, K., Silkenbäumer, K., and Hagen, H.
Interactive Visualization of Hybrid Medical Data Sets, Proceedings WSCG ’97, Vol. 2, Pilsen, Czech Republic, pp. 371 - 380, February 10 - 14, 1997

Meyer, J., Gelder, S., Schneider, T., and Hagen, H.
Interactive Visualization of Medical Data Sets, Proceedings of Scientific Visualization ’97, IEEE Computer Society Press, Schloss Dagstuhl, Germany, June 9-13, 1997 (ISBN 0-7695-0503-1)

Meyer, J., Gelder, S., Schreiber, Th., and Hagen, H.
INVIS - Interactive Visualization of Medical Data Sets, in Hagen - Nielson - Post: Scientific Visualization - Dagstuhl ’97, pp. 232-239

Nawotki A. and Hagen H.
Physically Based Modelling, >Proceedings of the workshop "Creating Fair and Shape-Preserving Curves and Surfaces", TU Berlin, 1997

Scheuermann, G., Hagen, H., Krüger, H., and Roockwook, A.
Examples of Clifford Vector Fields in Two Dimensions, Technical Report TR-97-002, Computer Science Department, Arizona State University, January 1997

Scheuermann, G.,  Hagen, H. and Krüger, H.
An index theorem for polynomial vector fields, SIAM Conference on Geometric Modeling, Nashville, TN, Nov. 1997

Scheuermann, G., Hagen, H., Kruger, H., Menzel, M., Rockwood, A.
Visualization of higher order singularities in vector fields

1996

Hagen, H. and Hahmann, St.
Numerical Aspects of Stability Investigations on Surfaces, in: Mullinuey, G. (ed.): The Mathematics of Surfaces VI, pp. 291-308, 1996

Hagen, H., Nielson, G., and Nakajima, J.
Surface Design using Triangular Patches, CAGD 13, pp. 859-904, 1996

Meyer, J., Lengen, R.-H. van, Hagen, H.
Towards Interactive Volume Visualization, Proc. of ONR Workshop on Volume Visualization, Arizona State University, Tempe, Arizona, p. 8, February 14-16, 1996

Rodrian, H.-C., Bender, M., Mook, H., and Hagen, H.
The Streamball Concept, Skeleton Based Implicit Surfaces for Flow Visualization, in Computer Graphics & Applications 1996

Stahl, J., Braun, C., and Hagen, H., Kramann, B., Kubale, R., Lengen, R. H., Meyer, J., and Schäfer, R.
Evaluation of a 3-dimensional model of scaphoid bone for optimization of lay screw osteosynthesis, in: Lemke, H. W., Vannier, M. W., Inamura, K., and Farman, A. G. (eds.):Proceedings "International Symposium on Computer and Communication Systems for Image Guided Diagnosis and Therapy/CAR ’96", Number 1124, pp. 1057-1058, Elsevier Science B. B., Amsterdam, June 1996

1995

M. Brill, H. Hagen, H. C. Rodrian
Visualizing fluid flow with implicit techniques. Programming and Computer Software 21(5): 270-271, 1995. BibTeX

Bloor, M., Hagen, H., and Wilson.
The Smoothing Properties of Variational Schemes for Surface Design, Computer Aided Geometric Design 12, pp. 381-394, 1995

Franke, R., Hagen, H., and Nielson, G.
Repeated Knots in Least Squares Multiquadric Functions, Computing Suppl. 10, pp. 177-187, 1995

Hagen, H. and Hahmann, St.
Stability Concept for Surfaces, >Computing Suppl. 10, pp. 189-198, 1995

Hagen, H., Hahmann, St., and Schreiber, Th.
Visualization and computation of curvature behaviour of freeform curves and surfaces, CAD 27(7), pp. 545-552, 1995

Hagen, H., Santarelli, P., and Wördenweber, B.
Variational Surface Design and Surface Interrogation, Proceedings of "Mechatronics ’94", 1995

Meyer, J., Lengen van, R. H., Matzat, M., and Hagen, H.
Shadow Generation for Hybrid Medical Data Sets, Proceedings of Visualization ’95 "Dynamics and Complexity", Center for Complex Systems and Visualization (CeVis), Gesellschaft für Informatik (GI) - Fachgruppe 4.1.2; Bremen, Germany, 1995

Rodrian, H.-C., Bender, M., Mook, H., and Hagen, H.
The Streamball Concept, Skeleton Based Implicit Surfaces for Flow Visualization, Proc. Visualization 95, GI, Bremen 1995

Weller, F. and Hagen, H.
Tensor Product Spline Spaces with Knot Segments, in: Daehlen, Lyche und Schumaker, L. (eds.): Mathematical Methods for Curves and Surfaces, pp. 563-572, 1995

1994

Brill, M., Hagen, H., Rodrian, H.-Chr., Djatschin, V., and Klimenko, S.
Streamball Techniques for Flow Visualization, Visualization ’94, pp. 225-231, 1994

Foley, T. and Hagen, H.
Advances in Scattered Data Interpolation, Survey on Math. Ind., Vol. 4, pp. 71-84, 1994

Franke, R., Hagen, H., and Nielson, G.
Least squares surface approximation to scattered data using multiquadric functions, >Advances in Comp. Mathematics 2, pp. 81-99, 1994

Hagen, H.
Variational Principles in Curve and Surface Design, in: Fister (ed.): Design and Application of Curves and Surfaces, pp. 169-190, 1994

Hagen, H.
Visualization of Large Data Sets, in: Rosenblum, L. et alt. (eds.): Scientific Visualization, pp. 187-200, 1994

Lengen van, R. H., Meyer, J., and Hagen, H.
Efficient 3-D Visualization of Hybrid Medical Data Sets, Technical Report 257/94, University of Kaiserslautern, Germany, 1994

Nielson, G. M., Brunet, P., Gross, M., Hagen, H., Klimenko, S. V.
Research issues in data modeling for scientific visualization, Computer Graphics and Applications, IEEE, Volume: 14 ,Issue: 2, pp. 70-73

1993

Hans Hagen, Heinrich Müller, Gregory M. Nielson
Color Illustrations. In H. Hagen, H. Müller, G. M. Nielson (eds.): Focus on Scientific Visualization, pp. 347-368, 1993, doi: 10.1007/978-3-642-77165-1_17. BibTeX

Bonneau, G.-P., and Hagen, H.
Variational Design of Rational Bézier Curves and Surfaces, in: Laurent, Mekaute, Schumaker, L. (eds.): Curves and Surfaces II, pp. 1-9, 1993

DeRose, T., Goldman, R., Hagen, H., and Mann, J.
Functional Composition Algorithms via Blossoming, Transactions on Graphics, Vol. 12(2), pp. 121-146, 1993

Hagen, H. and Bonneau, G.-P.
Smooth Rational Bézier-Surfaces, Computing 8, pp. 133-138, 1993

Hagen, H., Brunnett, G., and Santarelli, P.
Variational Principles in Curve and Surface Design, Surv. Math. Ind. 3, pp. 1-27, 1993

Hagen, H., Hahmann, St., and Bonneau, G.-P.
Variational Surface Design and Surface Interrogation, Computer Graphics Forum 12(3), pp. 447-460, 1993

Foley, T. A., Hagen, H., Nielson, G. M.
Visualizing and modeling unstructured data, THE VISUAL COMPUTER Volume 9, Number 8 (1993), pp. 439-449,

Jacob, Ph. and Hagen, H.
A BSP based Algorithm for Analytical Form Factor Calculation, in: Hagen, H. Müller, H. und Nielson, G. (eds.): Focus on Scientific Visualization, Springer, pp. 317-324, 1993

1992

Hagen, H., Hahmann, St., Schreiber, Th., Gschwind, E., Wördenweber, B., and Nakajima, J.
Curve and Surface Interrogation, Proceedings ‘‘GraphiCon’’, Moscow, 1992

Gerald Farin, Dianne Hansford, Hans Hagen
Gauss Frame Offsets. 1992.

Denzer, R., Kira, G., and Hagen, H.
Using Process Knowledge for Adaptive User Interfaces, Proceedings "Application for AI in Engineering", pp. 583-596, 1992

Foley, T., Hagen, H., and Nielson, G.
Visualizing and Modelling Unstructured Data, Proceedings GMD-Conf. "Visualisierung", 1992

Hagen, H. and Hahmann, St.
Generalized Focal Surfaces: A New Method for Surface Interrogation, in: Kaufmann and Nielson (eds.): Visualization ’92, pp. 70-76, 1992

Hagen, H. and Lasser, D.
Splines In Tension - a state of the art report, Surveys on Mathematics in Industry, 1992

Hagen, H. and Lasser, D.
Interval Weighted Tau-Splines, >in: Hagen, H. (ed.): Curve and Surface Design, pp. 41-53, 1992

Hagen, H. and Santarelli, P.
Variational Design of Smooth B-Spline Surfaces, in: Hagen, H. (ed.): Topics in Surface Modelling, pp. 85-94, 1992

Hagen, H., Hahmann, St., Schreiber, Th., Gschwind, E., Nakajima, J., and Wördenweber, B.
Curve and Surface Interrogation, in: Hagen, H., Müller, H., and Nielson, G. (eds.): Focus on Scientific Visualization, pp. 243-258, 1992

Farin, G., Hagen, H.
A local twist estimator, Topics in surface modeling, Pages 79 - 84

Hagen, H., Hahmann, St., Schreiber, Th., Nakajima, J., and Wördenweber, B
Surface Interrogation Algorithms, IEEE Computer Graphics & Appl. 12(5), pp. 53-60, 1992

1991

Hans Hagen, Thomas Schreiber
Scattered Data Algorithmen zur Umweltdatenvisualisierung. In R. Denzer, H. Hagen, K.-H. Kutschke (eds.): Visualisierung von Umweltdaten, pp. 22-28, 1991, doi: 10.1007/978-3-642-76720-3_3. BibTeX

Hagen, H. and Bonneau, G. P.
Variational Design of Smooth Rational Bézier Curves, CAGD, pp. 393-400, 1991

Hagen, H., Lengen van, R. H., and Schreiber, Th.
Visualization of Environment Protection Data, in: Denzer, R., Güttler and Grützner (eds.): Visualisierung von Umweltdaten ’91, pp. 71-76, 1991

Hagen, H., Pottmann, H., and Divivier, A.
Visualizing Functions on a Surface, Journal of Visualization and Computer Animation 2(2), pp. 52-58, 1991

1990

Foley, Th., Franke, R., Hagen, H., and Nielson, G.
Interpolation of Scattered Data on Closed Surface Domains, CAGD 7, pp. 303-312, 1990

Hagen, H.
A local Twist Estimation for Smooth Surface Design, in: Bowyer (ed.): Computer Aided Surface Geometry and Design, pp. 385-393, 1990

Hagen, H. and Schulze, G.
Extremalprinzipien im Kurven- und Flächendesign, in: Encarnacao, J., Hoschek, J., and Rix, H. J. (eds.): Geometrische Verfahren der graph. Datenverarbeitung, pp. 46-60, 1990

Hagen, H., Schreiber, Th., and Gschwind, E.
Methods for Surface Interrogation, Visualization ’90. pp. 187-193, 1990

1989

Bieber, Th. and Hagen, H.
A Geometric Modelling System for Geosciences based on Freeform Surfaces, Proceedings of the conference "Digital Maps in Geosciences", pp. 133-144, Würzburg, 1989

Hagen, H.
Geometric Modelling of Smooth Surfaces using Triangular Patches, in: Strasser and Seidel (eds.): Theory and Practice of Geometric Modeling, pp. 55-64, 1989

Hagen, H. and Pottmann, H.
Curvature Continuous Triangular Interpolants, in: Lyche, T. and Schumaker, L. (eds.): Mathematical Methods in CAGD, Acad. Press, 1989

1988

Hagen, H.
Geometric modeling of smooth surfaces, in Lecture Notes in Computer Science, 1988, Volume 333/1988, 158-167

Barnhill, R., Farin, G., Fayard, F., and Hagen, H.
Twists, curvatures and surface interrogation, CAD 20, pp. 341-346, 1988

Dankwort, W. and Hagen, H.
Geometrisches Modellieren mit Freiformflächen, CAD/CAM-Report 4, 1988

Hagen, H.
Krümmungsstetige Flächen, >CAD und Computer Graphik 5/6, pp. 161-166, 1988

Hagen, H.
Scattered Data Methoden, >Proceedings of the conference "Visualisierungstechniken", Wien, 1988

Hagen, H.
Geometric Modelling of Smooth Surfaces, in: Noltemeier, H. (ed.): Computational Geometry and its Applications, pp. 158-167, 1988

Hagen, H.
Generalized Coons Patches, >Computers in Industry 10, pp. 267-269, 1988

Hagen, H.
Computer Aided Geometric Design - Methods and Applications, Proceedings of the conference "Engineering Graphics and Descriptive Geometry", pp. 198-206. Wien, 1988

Hagen, H. and Hoschek, J.
Visualisierungsalgorithmen zur Qualitätsanalyse von Flächen in der CAD/CAM Technologie, Proceedings of the conference "Visualisierungstechniken", Wien, 1988

Hagen, H., Schulze, G., and Santarelli, P.
Algorithmen zum geometrischen Modellieren mit Freiformflächen, Clauer, K. und Purgathofer, W. (eds.): Austrographics, pp. 167-180, 1988

1987

Hagen, H. and Schulze, G.
Automatic Smoothing with Geometric Surface Patches, CAGD 4, pp. 231-235, 1987

1986

Heinrich Müller and Hans Hagen
Trading Speed against Space in Raytracing Free Form Surfaces.

Hagen, H.
Geometric surface patches without twist constraints, CAGD 3, pp. 179-184, 1986

Hagen, H.
Bézier Curves with Curvature and Torsion Continuity, Rocky Mountain Journal of Mathematics 16(3), pp. 629-638, 1986

Hagen, H. and Müller, H.
Beschleunigung der Bilderzeugung für Freiformflächen durch Speichereinsatz, Proceedings "Austrographics", 1986

1985

Hagen, H.
Geometric Spline Curves, >CAGD 2, pp. 223-227, 1985

Hagen, H.
Über die Kommerellhyperflächen von Untermannigfaltigkeiten des En, Akademie der Wissenschaften, Wien, pp. 41-44, 1985

Hagen, H.
Minding Isometrien bei (k+1)-Regelflächen, Monatshefte für Mathematik 99, pp. 29-36, 1985

1984

Hagen, H.
Algorithms for Geometric Spline Curves, Technical Report, Arizona State University, 1984

Hagen, H.
Totalgeodätische Untermannigfaltigkeiten von verallgemeinerten Regelflächen, >Anzeiger Akademie der Wissenschaften, Wien, pp. 29-31, 1984

Hagen, H.
Die minimalen (k+1)-Regelflächen, Archiv der Mathematik 42, pp. 76-84, 1984

1983

Hagen, H.
Minimale Begleitregelflächen von verallgemeinerten Regelflächen, Sitzungsberichte der Österreichische Akademie der Wissenschaften 192, pp. 227-236, 1983

Hagen, H.
Klassifikation der verallgemeinerten Regelflächen durch ihre Kommerellhyperflächen, >Journal of Geometry 21, pp. 157-163, 1983

Hagen, H.
Der Satz von Bonnet für (k+1)-Regelflächen, Monatshefte für Mathematik 95, pp. 197-202, 1983

Dissertations

Groß, Matthias
Towards Scientific Applications for Interactive Ray Casting, 2009

Rübel, Oliver
Linking Automated Data Analysis and Visualization with Applications in Developmental Biology and High-energy Physics, Nov. 2009

Keller, Patric
Adaptive Extraction and Representation of Geometric Structures from Unorganized 3D Point Sets, 2009

Michel, Frank
Simulation and Visualization of In- and Outdoor Sound, 2008

Middel, Ariane
Visualizing Urban Futures, A Framework for Visualizing Multidimensional Geospatial Data, 2008

Deines, Eduard
Acoustic Simulation and Visualization Algorithms, 2008

Hijazi, Younis
Feature Based Visualization, 2008

Bierz, Torsten
Intuitive Interaction for Immersive Visualization Systems, 2008.

Lehner, Burkhard
Meshing Techniques for Image/Video Compression and Surface Reconstruction, 2008

Bobach, Tom
Natural Neighbor Interpolation - Critical Assessment and New Contributions, 2008

Scheler, Inga
Analyse und Visualisierung raumplanerischer Prozesse mit Hilfe von Voronoi-Diagrammen, 2008

Garth, Christoph
Visualization of Complex Three-Dimensional Flow Structures, 2007

Ginkel, Ingo
Analysis and Tunning Techniques for Subdivision Algorithms, 2007

Reis, Gerd
Algorithmische Aspekte des vier-dimensionalen Ultraschalls, 2006

Ruby, Maja
Information Clustering in der Umweltinformatik, 2006

Ebert, A.
Contex-Sensitive Visualization, 2004

Münchhofen, Michael
Ein komponentenbasiertes Framework zur Integration von Visualisierungstechniken, 2003

Weber, Gunther H.
Visualization of Adaptive Mesh Refinement Data and Topology-based Exploration of Volume Data, 2003

Hotz, Ingrid
Geometrische Algorithmen zur Visualisierung diskreter und kontinuierlicher Tensorfelder, 2003

Wischgoll, Thomas
Closed Streamlines in Flow Visualisation, 2002

Dannenmann, Peter
Simulation und Visualisierung des Fehlverhaltens von Luft- und Raumfahrtsystemen, 2002

Tricoche, Xavier
Vector and Tensor Field Topology Simplification, Tracking, and Visualization, 2002

Nawotki, Alexa
Eine selektive Methode zur Verschlüsselung von Konstruktionsdaten mit Wavelets, 2001

Nuber, Christoph
Integration von Virtual Reality und Simulationen: Einsatzmöglichkeiten für Produktentwicklung und Betrieb in der Raumfahrt, 2001

Bossong, Ulrike
Anwendung der Methoden der multikriteriellen Optimierung zur Ermittlung ästhetischer Flächen in Computer Aided Design/Computer Aided Engineering, 2001

Bender, Michael
A Functional Framework for Efficient Web-based Scientific Visualization Systems, 2000

Barthel, Henning
Komponentenbasiertes visuelles Prototyping von Visualisierungsanwendungen, 2000

Sahler, Alexander
Optimierung von Dosisgewichtung und Isodosen-Neigungswinkel für die konformierende Bestrahlungsplanung, 2000

Christmann, Gerald
Hüllflächen-Diagnose am Beispiel der Radbewegung, 1999

Meyer, Jörg
Interactive Visualization of Medical and Biological Data Sets, 1999

Scheuermann, Gerik
Topological Vector Field Visualization with Clifford Algebra, 1999

Höffner, J.
New Methods for Solving the Inverse Problem in Radiation Therapy Planning, 1996

Jacob, Philip
Raytracing mit BSP-Volumen, Ein Globales, physikalisch-basiertes Beleuchtungsmodell, 1995

Santarelli, Paolo
Glättungskriterien und Algorithmen zum Modellieren von Kurven und Oberflächen, 1994

Schreiber, Thomas
Analyse und Approximation von unstrukturierten Daten und Freiformflächen, 1994

Hahmann, Stefanie
Stabilitätsanalyse von Freiformflächen, 1994

Bonneau, Georges-Pierre
Variational Design of Rational Bezier Curves and Surfaces, 1993

Gschwind, Ernst
Generation of Solid Models from Cross Sections, 1992

Denzer, Ralf
Visualisierung in komplexen Systemen und deren Anwendung im Umweltschutz, 1991

Schulz, G.
Elastische Wege und nichtlineare Splines im CAGD, 1990

Books

V. Pascucci, X. Tricoche, H. Hagen, J. Tierny (eds.)
Topological Methods in Data Analysis and Visualization: theory, algorithms, and applications

Hans Hagen (ed.)
Scientific Visualization: Advanced Concepts

Bertram, M. and Hagen H.
Reducing Interpolation Artifacts by Globally Fairing Contours, in Mathematical Foundations of Scientific Visualization, Computer Graphics, and Massive Data, pp. 247-269, DOI 10.1007/b106657_13

G. Steinebach, S. Guhathakurta, H. Hagen (eds.)
Visualizing sustainable planning, Springer-Verlag Berlin Heidelberg

L. Linsen, H. Hagen, B. Hamann
Visualization in medicine and life sciences, Springer-Verlag Berlin Heidelberg

Hauser, H., Hagen, H., Theisel, H.
Topology-based Methods in Visualization, Springer-Verlag, ISBN 978-3-540-70822-2, 2007.

Weikert, J. und Hagen, H.
Visualization and Processing of Tensor Fields Series: Mathematics and Visualization Weickert, Joachim; Hagen, Hans (Eds.) 2006, XV, 481 p., 264 illus., 94 in colour, Hardcover, ISBN: 978-3-540-25032-6

Farin, G., Hamann, B., and Hagen, H. (eds.):
Hierarchical and Geometrical Methods in Scientific Visualization, Springer (2003)

EbertA., Rushmeier, H., and Hagen, H. (eds.):
Visualization ’98, IEEE Proceedings (1998)

Yagel, Hagen (eds.):
Visualization ’97, IEEE Proceedings (1997)

Nielson, G., Hagen, H., and Müller (eds.):
Scientific Visualization Overviews-Methodologies-Techniques, IEEE (1997)

Nielson, G. M., Hagen, H., Müller, H.
Scientific Visualization, 1997

Hagen, H., Farin, G., and Noltemeier (eds.):
Geometric Modelling - Dagstuhl 1993, Springer (1995)

Rosenblum - Earnshaw - Encarnacao - Hagen - Kaufman - Klimenko - Nielson - Post - Thalman (eds.): Scientific Visualization - Advances and Challenges, Academic Press (1994)
Scientific Visualization - Advances and Challenges, Academic Press (1994)

Farin - Hagen - Noltemeier (eds.):
Geometric Modelling, Springer (1993)

Hagen - Müller - Nielson (eds.):
Focus on Scientific Visualization, Springer (1993)

Hagen (ed.):
Topics in Surface Modelling, SIAM (1992)

Hagen, H. (ed.):
Curve and Surface Design, SIAM (1992)

Denzer, R., Hagen, H., Kutschke (eds.):
Visualisierung von Umweltdaten, Springer (1991)

Hagen - Roller (eds.):
Geometric Modelling: Methods and Applications, Springer (1990)

Patric Keller, Martin Hering-Bertram and Hans Hagen
Surface Reconstruction from Unorganized 3D Point Clouds