A collection of images and videos can be found here. They cover new scientific approaches as well as social events. Enjoy :).
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Research
Image Galleries
Publications with Videos
VR Multi-user Conference Room for Surgery Planning
18. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie e.V., pp. 264-268, 2019
@InProceedings{Bashkanov_2019_CURAC,
author = {Oleksii Bashkanov and Patrick Saalfeld and Hariharasudhan Gunasekaran and Mathews Jabaraj and Bernhard Preim and Tobias Huber and Florentine Hüttl and Werner Kneist and Christian Hansen},
title = {{VR Multi-user Conference Room for Surgery Planning}},
booktitle = {{18. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie e.V. }},
year = {2019},
pages = {264--268},
}
author = {Oleksii Bashkanov and Patrick Saalfeld and Hariharasudhan Gunasekaran and Mathews Jabaraj and Bernhard Preim and Tobias Huber and Florentine Hüttl and Werner Kneist and Christian Hansen},
title = {{VR Multi-user Conference Room for Surgery Planning}},
booktitle = {{18. Jahrestagung der Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie e.V. }},
year = {2019},
pages = {264--268},
}
Oleksii Bashkanov: VR Multi-user Conference Room for Surgery Planning
Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM), pp. 253-264, 2019
@InProceedings{Behrendt_2019_VCBM,
author = {Benjamin Behrendt and Wito Engelke and Philipp Berg and Oliver Beuing and Bernhard Preim and Ingrid Hotz and Sylvia Saalfeld},
title = {{Evolutionary Pathlines for Blood Flow Exploration in Cerebral Aneurysms}},
booktitle = {{Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM)}},
year = {2019},
pages = {253--264},
}
author = {Benjamin Behrendt and Wito Engelke and Philipp Berg and Oliver Beuing and Bernhard Preim and Ingrid Hotz and Sylvia Saalfeld},
title = {{Evolutionary Pathlines for Blood Flow Exploration in Cerebral Aneurysms}},
booktitle = {{Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM)}},
year = {2019},
pages = {253--264},
}
Evolutionary Pathlines for Blood Flow Exploration in Cerebral Aneurysms
Collaborative Virtual Reality for Laparoscopic Liver Surgery Training
Proceedings of IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR), , in print, 2019
@Article{Chheang_2019_AIVR,
author = {V. Chheang and P. Saalfeld and T. Huber and F. Huettl and W. Kneist and B. Preim and C. Hansen},
title = {{Collaborative Virtual Reality for Laparoscopic Liver Surgery Training}},
journal = {{Proceedings of IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR)}},
year = {2019},
}
author = {V. Chheang and P. Saalfeld and T. Huber and F. Huettl and W. Kneist and B. Preim and C. Hansen},
title = {{Collaborative Virtual Reality for Laparoscopic Liver Surgery Training}},
journal = {{Proceedings of IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR)}},
year = {2019},
}
Computers \& Graphics, 82, pp. 32-43, 2019
@Article{Koehler,
author = {Benjamin Köhler and Matthias Grothoff and Mathias Gutberlet and Bernhard Preim},
title = {{Bloodline: A system for the guided analysis of cardiac 4D {PC}-{MRI} data}},
journal = {Computers \& Graphics},
year = {2019},
volume = {82},
pages = {32--43},
doi = {10.1016/j.cag.2019.05.004},
}
author = {Benjamin Köhler and Matthias Grothoff and Mathias Gutberlet and Bernhard Preim},
title = {{Bloodline: A system for the guided analysis of cardiac 4D {PC}-{MRI} data}},
journal = {Computers \& Graphics},
year = {2019},
volume = {82},
pages = {32--43},
doi = {10.1016/j.cag.2019.05.004},
}
Bloodline: A system for the guided analysis of cardiac 4D PC-MRI data
Computer Graphics Forum, 38(3), pp. 413-425, 2019
@Article{Lawonn_2019_EuroVIS,
Title = {{A Geometric Optimization Approach for the Detection and Segmentation of Multiple Aneurysms}},
Author = {Kai Lawonn and Monique Meuschke and Ralph Wickenhöfer and Bernhard Preim and Klaus Hildebrandt},
Journal = {Computer Graphics Forum},
Year = {2019},
Pages = {413--425},
Volume = {38(3)}
}
Title = {{A Geometric Optimization Approach for the Detection and Segmentation of Multiple Aneurysms}},
Author = {Kai Lawonn and Monique Meuschke and Ralph Wickenhöfer and Bernhard Preim and Klaus Hildebrandt},
Journal = {Computer Graphics Forum},
Year = {2019},
Pages = {413--425},
Volume = {38(3)}
}
A Geometric Optimization Approach for the Detection and Segmentation of Multiple Aneurysms
Mensch und Computer, pp. 91-102, 2019
@InProceedings{Pohlandt_2019_MUC,
author = {Daniel Pohlandt and Bernhard Preim and Patrick Saalfeld},
title = {{Supporting Anatomy Education with a 3D Puzzle in a Virtual Reality Environment -- Results from a Pilot Study}},
booktitle = {Mensch und Computer},
year = {2019},
pages = {91--102},
}
author = {Daniel Pohlandt and Bernhard Preim and Patrick Saalfeld},
title = {{Supporting Anatomy Education with a 3D Puzzle in a Virtual Reality Environment -- Results from a Pilot Study}},
booktitle = {Mensch und Computer},
year = {2019},
pages = {91--102},
}
Supporting Anatomy Education with a 3D Puzzle in a Virtual Reality Environment
Difficulty Factors for VR Cognitive Rehabilitation Training Crossing a Virtual Road
Computers \& Graphics, 83, pp. 11-22, 2019
@Article{wagner_2019_cg,
Title = {{Difficulty Factors for VR Cognitive Rehabilitation Training Crossing a Virtual Road}},
Author = {Sebastian Wagner and Fabian Joeres and Mareike Gabele and Christian Hansen and Bernhard Preim and Patrick Saalfeld},
Journal = {{Computers \& Graphics}},
Year = {2019},
Pages = {11--22},
Volume = {83},
Abstract = {Patients with cognitive or visual impairments have problems in dealing with complex situations. During the rehabilitation process, it is important to confront the patient with (everyday) tasks that have increasing degrees of difficulty to improve their performance. Immersive virtual reality training offers the potential to create a better transfer to daily life than non-immersive computer training. In cooperation with two neuropsychologists, an immersive virtual environment (VE) was developed in which cognitive training in the form of safe road crossing decisions can be performed. We present the experimental exploration and evaluation of difficulty factors within such a VR-based cognitive rehabilitation program. Four difficulty factors were identified and compared (number of relevant traffic lanes, speed of vehicles, distance between vehicles, and number of vehicles). The combination of these difficulty factors resulted in 36 training scenarios. The impact of the factors on participant performance and subjective perception of scenario difficulty were evaluated with 60 healthy participants to estimate the impact of the four factors to a situations difficulty level. For the factors Relevant Lanes and Traffic Speed a clear influence on the perceived task difficulty could be determined. No clear influence could be found for the Gap Size. The Number of Vehicles had almost no effect on the perceived task difficulty. Finally, we asked two experienced neuropsychologists about the applicability of our developed system to patients, and they stated that the system is ready for a study on patients.},
Doi = {https://doi.org/10.1016/j.cag.2019.06.009},
ISSN = {0097-8493},
Keywords = {Virtual reality, Cognitive rehabilitation, Disabilities},
Url = {http://www.sciencedirect.com/science/article/pii/S0097849319301037}
}
Title = {{Difficulty Factors for VR Cognitive Rehabilitation Training Crossing a Virtual Road}},
Author = {Sebastian Wagner and Fabian Joeres and Mareike Gabele and Christian Hansen and Bernhard Preim and Patrick Saalfeld},
Journal = {{Computers \& Graphics}},
Year = {2019},
Pages = {11--22},
Volume = {83},
Abstract = {Patients with cognitive or visual impairments have problems in dealing with complex situations. During the rehabilitation process, it is important to confront the patient with (everyday) tasks that have increasing degrees of difficulty to improve their performance. Immersive virtual reality training offers the potential to create a better transfer to daily life than non-immersive computer training. In cooperation with two neuropsychologists, an immersive virtual environment (VE) was developed in which cognitive training in the form of safe road crossing decisions can be performed. We present the experimental exploration and evaluation of difficulty factors within such a VR-based cognitive rehabilitation program. Four difficulty factors were identified and compared (number of relevant traffic lanes, speed of vehicles, distance between vehicles, and number of vehicles). The combination of these difficulty factors resulted in 36 training scenarios. The impact of the factors on participant performance and subjective perception of scenario difficulty were evaluated with 60 healthy participants to estimate the impact of the four factors to a situations difficulty level. For the factors Relevant Lanes and Traffic Speed a clear influence on the perceived task difficulty could be determined. No clear influence could be found for the Gap Size. The Number of Vehicles had almost no effect on the perceived task difficulty. Finally, we asked two experienced neuropsychologists about the applicability of our developed system to patients, and they stated that the system is ready for a study on patients.},
Doi = {https://doi.org/10.1016/j.cag.2019.06.009},
ISSN = {0097-8493},
Keywords = {Virtual reality, Cognitive rehabilitation, Disabilities},
Url = {http://www.sciencedirect.com/science/article/pii/S0097849319301037}
}
Sebastian Wagner - Difficulty Factors for VR Cognitive Rehabilitation Training ? Crossing a Virtual Road
Patients with cognitive or visual impairments have problems in dealing with complex situations. During the rehabilitation process, it is important to confront the patient with (everyday) tasks that have increasing degrees of difficulty to improve their performance. Immersive virtual reality training offers the potential to create a better transfer to daily life than non-immersive computer training. In cooperation with two neuropsychologists, an immersive virtual environment was developed in which cognitive training in the form of safe road crossing decisions can be performed. We present the experimental exploration and evaluation of difficulty factors within such a VR-based cognitive rehabilitation program. Four difficulty factors were identified and compared (number of relevant traffic lanes, speed of vehicles, distance between vehicles, and number of vehicles). The combination of these difficulty factors resulted in 36 training scenarios. The impact of the factors on participant performance and subjective perception of scenario difficulty were evaluated with 60 healthy participants to estimate the impact of the four factors to a situation's difficulty level. For the factors Relevant Lanes and Traffic Speed a clear influence on the perceived task difficulty could be determined. No clear influence could be found for the Gap Size. The Number of Vehicles had almost no effect on the perceived task difficulty. Finally, we asked two experienced neuropsychologists about the applicability of our developed system to patients, and they stated that the system is ready for a study on patients.
Computer Graphics Forum, 37, pp. 183-194, 2018
@Article{Behrendt_2018_EuroVIS,
Title = {{Explorative Blood Flow Visualization using Dynamic Line Filtering based on Surface Features}},
Author = {Benjamin Behrendt and Philipp Berg and Oliver Beuing and Bernhard Preim and Sylvia Saalfeld},
Journal = {Computer Graphics Forum},
Year = {2018},
Number = {3},
Pages = {183-194},
Volume = {37},
Doi = {10.1111/cgf.13411},
ISSN = {1467-8659},
Publisher = {The Eurographics Association and John Wiley \& Sons Ltd.}
}
Title = {{Explorative Blood Flow Visualization using Dynamic Line Filtering based on Surface Features}},
Author = {Benjamin Behrendt and Philipp Berg and Oliver Beuing and Bernhard Preim and Sylvia Saalfeld},
Journal = {Computer Graphics Forum},
Year = {2018},
Number = {3},
Pages = {183-194},
Volume = {37},
Doi = {10.1111/cgf.13411},
ISSN = {1467-8659},
Publisher = {The Eurographics Association and John Wiley \& Sons Ltd.}
}
Explorative Blood Flow Vis. using Dynamic Surface-based Filtering
Computer Graphics Forum, 37, pp. 195-204, 2018
@Article{Koehler_2018_CGF,
Title = {{Visual and Quantitative Analysis of Great Arteries` Blood Flow Jets in Cardiac 4D PC-MRI Data}},
Author = {Benjamin Köhler and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
Journal = {Computer Graphics Forum},
Year = {2018},
Number = {3},
Pages = {195-204},
Volume = {37},
Doi = {10.1111/cgf.13412}
}
Title = {{Visual and Quantitative Analysis of Great Arteries` Blood Flow Jets in Cardiac 4D PC-MRI Data}},
Author = {Benjamin Köhler and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
Journal = {Computer Graphics Forum},
Year = {2018},
Number = {3},
Pages = {195-204},
Volume = {37},
Doi = {10.1111/cgf.13412}
}
Blood flow jets in great arteries
IEEE Computer Graphics and Applications, 38, pp. 58-72, 2018
@Article{Meuschke2018_CGA,
Title = {{Management of Cerebral Aneurysm Descriptors based on an Automatic Ostium Extraction}},
Author = {Monique Meuschke and Tobias Günther and Ralph Wickenhöfer and Markus Gross and Bernhard Preim and Kai Lawonn},
Journal = {IEEE Computer Graphics and Applications},
Year = {2018},
Number = {3},
Pages = {58--72},
Volume = {38},
Publisher = {IEEE}
}
Title = {{Management of Cerebral Aneurysm Descriptors based on an Automatic Ostium Extraction}},
Author = {Monique Meuschke and Tobias Günther and Ralph Wickenhöfer and Markus Gross and Bernhard Preim and Kai Lawonn},
Journal = {IEEE Computer Graphics and Applications},
Year = {2018},
Number = {3},
Pages = {58--72},
Volume = {38},
Publisher = {IEEE}
}
Management of Cerebral Aneurysm Descriptors based on an Automatic Ostium Detection
IEEE Transactions on Visualization and Computer Graphics, , in print, 2018
@Article{Meuschke2018_TVCG,
Title = {{Classification of Blood Flow Patterns in Cerebral Aneurysms}},
Author = {Monique Meuschke and Steffen Oeltze-Jafra and Oliver Beuing and Bernhard Preim and Kai Lawonn},
Journal = {IEEE Transactions on Visualization and Computer Graphics},
Year = {2018},
Publisher = {IEEE}
}
Title = {{Classification of Blood Flow Patterns in Cerebral Aneurysms}},
Author = {Monique Meuschke and Steffen Oeltze-Jafra and Oliver Beuing and Bernhard Preim and Kai Lawonn},
Journal = {IEEE Transactions on Visualization and Computer Graphics},
Year = {2018},
Publisher = {IEEE}
}
Classification of Blood Flow Patterns in Cerebral Aneurysms
IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2018), in print, 2018
@InProceedings{Meuschke2018_TVCG_VIS,
Title = {{Visual Analysis of Aneurysm Data using Statistical Graphics}},
Author = {Monique Meuschke and Tobias Günther and Ralph Wickenhöfer and Bernhard Preim and Kai Lawonn},
Booktitle = {{IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2018)}},
Year = {2018},
Journal = {IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2018)},
Keywords = {TVCG,d},
Owner = {meuschke},
Timestamp = {2018.08.20}
}
Title = {{Visual Analysis of Aneurysm Data using Statistical Graphics}},
Author = {Monique Meuschke and Tobias Günther and Ralph Wickenhöfer and Bernhard Preim and Kai Lawonn},
Booktitle = {{IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2018)}},
Year = {2018},
Journal = {IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2018)},
Keywords = {TVCG,d},
Owner = {meuschke},
Timestamp = {2018.08.20}
}
Visual Analysis of Aneurysm Data using Statistical Graphics
Computers \& Graphics, 72, pp. 12-25, 2018
@Article{Meuschke_2018_CG,
Title = {{Exploration of Blood Flow Patterns in Cerebral Aneurysms during the Cardiac Cycle}},
Author = {Monique Meuschke and Samuel Voß and Bernhard Preim and Kai Lawonn},
Journal = {{Computers \& Graphics}},
Year = {2018},
Pages = {12--25},
Volume = {72}
}
Title = {{Exploration of Blood Flow Patterns in Cerebral Aneurysms during the Cardiac Cycle}},
Author = {Monique Meuschke and Samuel Voß and Bernhard Preim and Kai Lawonn},
Journal = {{Computers \& Graphics}},
Year = {2018},
Pages = {12--25},
Volume = {72}
}
Exploration of Blood Flow Patterns in Cerebral Aneurysms during the Cardiac Cycle
Eurographics Workshop on Visual Computing for Biology and Medicine, in print, 2018
@InProceedings{Meuschke_2018_VCBM,
Title = {{Automatic Generation of Web-Based User Studies to Evaluate Depth Perception in Vascular Surface Visualizations}},
Author = {Monique Meuschke and Noeska N. Smit and Nils Lichtenberg and Bernhard Preim and Kai Lawonn},
Booktitle = {Eurographics Workshop on Visual Computing for Biology and Medicine},
Year = {2018},
Editor = {Puig Puig, Anna and Schultz, Thomas and Vilanova, Anna and Hotz, Ingrid and Kozlikova, Barbora and Vázquez, Pere-Pau},
Publisher = {The Eurographics Association},
Doi = {10.2312/vcbm.20181227},
ISBN = {978-3-03868-056-7},
ISSN = {2070-5786}
}
Title = {{Automatic Generation of Web-Based User Studies to Evaluate Depth Perception in Vascular Surface Visualizations}},
Author = {Monique Meuschke and Noeska N. Smit and Nils Lichtenberg and Bernhard Preim and Kai Lawonn},
Booktitle = {Eurographics Workshop on Visual Computing for Biology and Medicine},
Year = {2018},
Editor = {Puig Puig, Anna and Schultz, Thomas and Vilanova, Anna and Hotz, Ingrid and Kozlikova, Barbora and Vázquez, Pere-Pau},
Publisher = {The Eurographics Association},
Doi = {10.2312/vcbm.20181227},
ISBN = {978-3-03868-056-7},
ISSN = {2070-5786}
}
Automatic Generation of Web-Based User Studies to Evaluate Depth Perception in Vascular Surface Visualizations
Vision Modelling und Visualization (VMV), in print, 2017
@InProceedings{Koehler_2017_VMV,
Title = {{Visualization of Cardiac Blood Flow Using Anisotropic Ambient Occlusion for Lines}},
Author = {Benjamin Köhler and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
Booktitle = {{Vision, Modelling und Visualization (VMV)}},
Year = {2017},
Address = {Bonn},
Month = {Sebtember}
}
Title = {{Visualization of Cardiac Blood Flow Using Anisotropic Ambient Occlusion for Lines}},
Author = {Benjamin Köhler and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
Booktitle = {{Vision, Modelling und Visualization (VMV)}},
Year = {2017},
Address = {Bonn},
Month = {Sebtember}
}
Visualization of Cardiac Blood Flow Using Anisotropic Ambient Occlusion for Lines
Computer Graphics Forum, pp. 99-108, 2017
@InProceedings{Meuschke_2017_CGF,
Title = {{Glyph-Based Comparative Stress Tensor Visualization in Cerebral Aneurysms}},
Author = {Monique Meuschke and Samuel Voß and Oliver Beuing and Bernhard Preim and Kai Lawonn},
Booktitle = {Computer Graphics Forum},
Year = {2017},
Number = {3},
Organization = {Wiley Online Library},
Pages = {99--108},
Volume = {36},
Doi = {10.1111/cgf.13171},
ISSN = {1467-8659}
}
Title = {{Glyph-Based Comparative Stress Tensor Visualization in Cerebral Aneurysms}},
Author = {Monique Meuschke and Samuel Voß and Oliver Beuing and Bernhard Preim and Kai Lawonn},
Booktitle = {Computer Graphics Forum},
Year = {2017},
Number = {3},
Organization = {Wiley Online Library},
Pages = {99--108},
Volume = {36},
Doi = {10.1111/cgf.13171},
ISSN = {1467-8659}
}
Glyph-Based Comparative Stress tensor Visualization in Cerebral Aneurysms
IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2016), pp. 761-770, 2017
@InProceedings{Meuschke_2017_TVCG,
Title = {{Combined Visualization of Vessel Deformation and Hemodynamics in Cerebral Aneurysms}},
Author = {Monique Meuschke and Samuel Voss and Oliver Beuing and Bernhard Preim and Kai Lawonn},
Booktitle = {{IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2016)}},
Year = {2017},
Pages = {761--770},
Volume = {23(1)},
Journal = {IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2016)},
Keywords = {TVCG,d},
Owner = {behrendt},
Timestamp = {2016.08.15}
}
Title = {{Combined Visualization of Vessel Deformation and Hemodynamics in Cerebral Aneurysms}},
Author = {Monique Meuschke and Samuel Voss and Oliver Beuing and Bernhard Preim and Kai Lawonn},
Booktitle = {{IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2016)}},
Year = {2017},
Pages = {761--770},
Volume = {23(1)},
Journal = {IEEE Transactions on Visualization and Computer Graphics (Proceedings of the Scientific Visualization 2016)},
Keywords = {TVCG,d},
Owner = {behrendt},
Timestamp = {2016.08.15}
}
Combined Visualization of Vessel Deformation and Hemodynamics in Cerebral Aneurysms
Mensch und Computer, pp. 73-82, 2017
@InProceedings{Saalfeld_2017_MC_A,
Title = {{An Immersive System for Exploring and Measuring Medical Image Data}},
Author = {Patrick Saalfeld and Johannes Patzschke and Bernhard Preim},
Booktitle = {{Mensch und Computer}},
Year = {2017},
Pages = {73-82}
}
Title = {{An Immersive System for Exploring and Measuring Medical Image Data}},
Author = {Patrick Saalfeld and Johannes Patzschke and Bernhard Preim},
Booktitle = {{Mensch und Computer}},
Year = {2017},
Pages = {73-82}
}
Bildverarbeitung für die Medizin (BVM), pp. 188-193, 2016
@InProceedings{Behrendt_2016_BVM,
Title = {{Enhancing Visibility of Blood Flow in Volume Rendered Cardiac 4D PC-MRI Data}},
Author = {Benjamin Behrendt and Benjamin Köhler and Uta Preim and Bernhard Preim},
Booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
Year = {2016},
Address = {Berlin},
Pages = {188--193},
Keywords = {BVM,d},
Owner = {behrendt},
Timestamp = {2016.01.08}
}
Title = {{Enhancing Visibility of Blood Flow in Volume Rendered Cardiac 4D PC-MRI Data}},
Author = {Benjamin Behrendt and Benjamin Köhler and Uta Preim and Bernhard Preim},
Booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
Year = {2016},
Address = {Berlin},
Pages = {188--193},
Keywords = {BVM,d},
Owner = {behrendt},
Timestamp = {2016.01.08}
}
Benjamin Behrendt: Enhancing Visibility of Blood Flow in Volume Rendered Cardiac 4D PC-MRI Data
Four-dimensional phase-contrast magnetic resonance imaging (4D PC-MRI ) is a method to non-invasively acquire blood flow in the aorta. This flow is commonly visualized as path lines inside of the vessels. Direct volume rendering (DVR) uses a transfer function to directly render the dataset without needing a manual segmentation. Since the transfer function can be manipulated on the fly, DVR allows fast exploration of the dataset. Using a simple intensity-based transfer function, however, either the intravascular blood flow would be hidden behind the vessel's front side or the entire vessel has to be culled from the visualization. Therefore, we propose an automated mechanism that reveals the vessel anatomy by removing their front sides based on the viewing direction. This creates an effect similar to frontface culling on surface renderings. The visibility of focus objects inside the anatomy is guaranteed while spatial awareness is mostly maintained due to the presence of anatomical structures as context information. While we were able to confirm the effectiveness of our method in an interview with a collaborating radiologist, it still proved to be somewhat limited by the data quality and lack of a manual segmentation.
Bildverarbeitung für die Medizin (BVM), pp. 194-199, 2016
@InProceedings{Koehler_2016_BVM,
Title = {{Adaptive Animations of Vortex Flow Extracted from Cardiac 4D PC-MRI Data}},
Author = {Benjamin Köhler and Uta Preim and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
Booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
Year = {2016},
Pages = {194--199},
Keywords = {BVM,d},
Owner = {behrendt},
Timestamp = {2016.01.08}
}
Title = {{Adaptive Animations of Vortex Flow Extracted from Cardiac 4D PC-MRI Data}},
Author = {Benjamin Köhler and Uta Preim and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
Booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
Year = {2016},
Pages = {194--199},
Keywords = {BVM,d},
Owner = {behrendt},
Timestamp = {2016.01.08}
}
Adaptive Animations of Vortex Flow Extracted from Cardiac 4D PC-MRI Data
EuroVis 2016: Eurographics / IEEE VGTC Conference on Visualization 2016, pp. 351-360, 2016
@InProceedings{Meuschke_2016_EuroVis,
Title = {{Semi-automatic Vortex Flow Classification in 4D PC-MRI Data of the Aorta}},
Author = {Monique Meuschke and Benjamin Köhler and Uta Preim and Bernhard Preim and Kai Lawonn},
Booktitle = {{EuroVis 2016: Eurographics / IEEE VGTC Conference on Visualization 2016}},
Year = {2016},
Number = {3},
Pages = {351--360},
Volume = {35},
Keywords = {EuroVis,d},
Owner = {behrendt},
Timestamp = {2016.04.22}
}
Title = {{Semi-automatic Vortex Flow Classification in 4D PC-MRI Data of the Aorta}},
Author = {Monique Meuschke and Benjamin Köhler and Uta Preim and Bernhard Preim and Kai Lawonn},
Booktitle = {{EuroVis 2016: Eurographics / IEEE VGTC Conference on Visualization 2016}},
Year = {2016},
Number = {3},
Pages = {351--360},
Volume = {35},
Keywords = {EuroVis,d},
Owner = {behrendt},
Timestamp = {2016.04.22}
}
Semi-automatic Vortex Flow Classification in 4D PC-MRI Data of the Aorta
IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 757-766, 2016
@Article{Oeltze_2015_TVCG,
Title = {{Cluster Analysis of Vortical Flow in Simulations of Cerebral Aneurysm Hemodynamics}},
Author = {Steffen Oeltze-Jafra and Juan R. Cebral and Gábor Janiga and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2016},
Number = {1},
Pages = {757--766},
Volume = {22 (1)},
Owner = {oeltze-jafra},
Timestamp = {2015.08.10}
}
Title = {{Cluster Analysis of Vortical Flow in Simulations of Cerebral Aneurysm Hemodynamics}},
Author = {Steffen Oeltze-Jafra and Juan R. Cebral and Gábor Janiga and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2016},
Number = {1},
Pages = {757--766},
Volume = {22 (1)},
Owner = {oeltze-jafra},
Timestamp = {2015.08.10}
}
Investigating Vortical Flow in a Giant Aneurysm
The video illustrates our pipeline for investigating vortices in simulations of cerebral aneurysm hemodynamics. The demonstration case is a giant aneurysm of the left internal carotid artery (ICA) at the origin of the ophtalmic artery. The corresponding hemodynamic data was generated by Juan R. Cebral. In a first step, vortex core line segments are extracted from time step t of the simulation data and continuous core lines are formed in an enhancement step. Then, streamlines are integrated from core line points. To reduce visual clutter, streamlines are grouped based on equilibrium points along the core lines. The groups may be optionally refined in a clustering step generating a more detailed visualization of the flow pattern, especially further off the core lines. Finally, group/cluster representatives are computed and integrated with other simulated or derived data in a visual summary. The aneurysm at hand contains three major vortices. Among them is a so-called embedded vortex. This type of vortex is characterized by a vortex layer swirling in one direction along the vortex core line, and a second vortex layer swirling in the opposite direction and enveloping the first. The video illustrates a smart visibility strategy supporting the investigation of flow in the presence of multiple vortices. In an overview visualization, the representatives of all vortices are displayed. As the user zooms in on a vortex, all other vortices gradually disappear. If the user continues to zoom in, the representatives of the vortex in focus also start to fade-out and its spherical glyphs gradually shrink to reveal the core line and facilitate an inspection of its velocity magnitude profile.
A Sketch-Based Interface for 2D Illustration of Vascular Structures Diseases and Treatment Options with Real-Time Blood Flow
Computer Vision Imaging and Computer Graphics Theory and Applications: International Joint Conference Revised Selected Papers, pp. 19-40, 2016
@InBook{Saalfeld_2016_CCIS,
Title = {A Sketch-Based Interface for 2D Illustration of Vascular Structures, Diseases, and Treatment Options with Real-Time Blood Flow},
Author = {Patrick Saalfeld and Alexandra Baer and Uta Preim and Bernhard Preim and Kai Lawonn},
Chapter = {Computer Vision, Imaging and Computer Graphics Theory and Applications: International Joint Conference, Revised Selected Papers},
Editor = {Braz, Jos{\`e} and Pettr{\`e}, Julien and Richard, Paul and Kerren, Andreas and Linsen, Lars and Battiato, Sebastiano and Imai, Francisco},
Pages = {19--40},
Publisher = {Springer International Publishing},
Year = {2016},
Volume = {598},
ISBN = {978-3-319-29971-6},
Owner = {schumann},
Timestamp = {2016.02.18}
}
Title = {A Sketch-Based Interface for 2D Illustration of Vascular Structures, Diseases, and Treatment Options with Real-Time Blood Flow},
Author = {Patrick Saalfeld and Alexandra Baer and Uta Preim and Bernhard Preim and Kai Lawonn},
Chapter = {Computer Vision, Imaging and Computer Graphics Theory and Applications: International Joint Conference, Revised Selected Papers},
Editor = {Braz, Jos{\`e} and Pettr{\`e}, Julien and Richard, Paul and Kerren, Andreas and Linsen, Lars and Battiato, Sebastiano and Imai, Francisco},
Pages = {19--40},
Publisher = {Springer International Publishing},
Year = {2016},
Volume = {598},
ISBN = {978-3-319-29971-6},
Owner = {schumann},
Timestamp = {2016.02.18}
}
Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow
Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM), pp. 123-132, 2016
@InProceedings{Saalfeld_2016_VCBM,
Title = {{Semi-Immersive 3D Sketching of Vascular Structures for Medical Education}},
Author = {Patrick Saalfeld and Aleksandar Stojnic and Bernhard Preim and Steffen Oeltze-Jafra},
Booktitle = {{Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM)}},
Year = {2016},
Address = {Bergen, Norwegen},
Month = {September},
Pages = {123--132},
Timestamp = {2016.08.15}
}
Title = {{Semi-Immersive 3D Sketching of Vascular Structures for Medical Education}},
Author = {Patrick Saalfeld and Aleksandar Stojnic and Bernhard Preim and Steffen Oeltze-Jafra},
Booktitle = {{Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM)}},
Year = {2016},
Address = {Bergen, Norwegen},
Month = {September},
Pages = {123--132},
Timestamp = {2016.08.15}
}
Semi-Immersive 3D Sketching of Vascular Structures for Medical Education
IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 81-90, 2015
@Article{Klemm_2015_TVCG,
Title = {{3D Regression Heat Map Analysis of Population Study Data}},
Author = {Paul Klemm and Kai Lawonn and Sylvia Glaßer and Uli Niemann and Katrin Hegenscheid and Henry V{\"o}lzke and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2015},
Number = {1},
Pages = {81--90},
Volume = {22 (1)},
Owner = {klemm},
Timestamp = {2015.08.10}
}
Title = {{3D Regression Heat Map Analysis of Population Study Data}},
Author = {Paul Klemm and Kai Lawonn and Sylvia Glaßer and Uli Niemann and Katrin Hegenscheid and Henry V{\"o}lzke and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2015},
Number = {1},
Pages = {81--90},
Volume = {22 (1)},
Owner = {klemm},
Timestamp = {2015.08.10}
}
Paul Klemm: 3D Regression Heat Map
International Journal of Computer-Assisted Radiology and Surgery (IJCARS), pp. 1-11, 2015
@InProceedings{Koehler_2015_IJCARS,
Title = {{Motion-aware stroke volume quantification in 4D PC-MRI data of the human aorta}},
Author = {Benjamin Köhler and Uta Preim and Matthias Grothoff and Matthias Gutberlet and Katharina Fischbach and Bernhard Preim},
Booktitle = {{International Journal of Computer-Assisted Radiology and Surgery (IJCARS)}},
Year = {2015},
Pages = {1--11},
Publisher = {Springer},
Keywords = {IJCARS,d},
Owner = {behrendt},
Timestamp = {2015.09.23}
}
Title = {{Motion-aware stroke volume quantification in 4D PC-MRI data of the human aorta}},
Author = {Benjamin Köhler and Uta Preim and Matthias Grothoff and Matthias Gutberlet and Katharina Fischbach and Bernhard Preim},
Booktitle = {{International Journal of Computer-Assisted Radiology and Surgery (IJCARS)}},
Year = {2015},
Pages = {1--11},
Publisher = {Springer},
Keywords = {IJCARS,d},
Owner = {behrendt},
Timestamp = {2015.09.23}
}
Motion-Aware Stroke Volume Quantification in 4D PC-MRI Data of the Human Aorta
International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), pp. 399-406, 2015
@InProceedings{Lawonn_2015_MICCAI,
Title = {{Illustrative Visualization of Vascular Models for Static 2D Representations}},
Author = {Kai Lawonn and Maria Luz and Bernhard Preim and Christian Hansen},
Booktitle = {{International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI)}},
Year = {2015},
Address = {München},
Month = {Oktober},
Pages = {399--406},
Owner = {schumann},
Timestamp = {2015.06.18}
}
Title = {{Illustrative Visualization of Vascular Models for Static 2D Representations}},
Author = {Kai Lawonn and Maria Luz and Bernhard Preim and Christian Hansen},
Booktitle = {{International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI)}},
Year = {2015},
Address = {München},
Month = {Oktober},
Pages = {399--406},
Owner = {schumann},
Timestamp = {2015.06.18}
}
IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 728-737, 2015
@Article{Lawonn_2015_TVCG,
Title = {{Occlusion-free Blood Flow Animation with Wall Thickness Visualization}},
Author = {Kai Lawonn and Sylvia Glaßer and Anna Vilanova and Bernhard Preim and Tobias Isenberg},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2015},
Number = {1},
Pages = {728--737},
Volume = {22 (1)},
Owner = {klemm},
Timestamp = {2015.08.10}
}
Title = {{Occlusion-free Blood Flow Animation with Wall Thickness Visualization}},
Author = {Kai Lawonn and Sylvia Glaßer and Anna Vilanova and Bernhard Preim and Tobias Isenberg},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2015},
Number = {1},
Pages = {728--737},
Volume = {22 (1)},
Owner = {klemm},
Timestamp = {2015.08.10}
}
Occlusion-free Blood Flow Animation with Wall Thickness Visualization
Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), pp. 103-112, 2015
@InProceedings{Lawonn_2015_VCBM,
Title = {{Illustrative Multi-volume Rendering for PET/CT Scans}},
Author = {Kai Lawonn and Noeska Smit and Bernhard Preim and Anna Vilanova},
Booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM)}},
Year = {2015},
Address = {Chester, UK},
Month = {September},
Pages = {103--112},
Owner = {schumann},
Timestamp = {2015.09.18}
}
Title = {{Illustrative Multi-volume Rendering for PET/CT Scans}},
Author = {Kai Lawonn and Noeska Smit and Bernhard Preim and Anna Vilanova},
Booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM)}},
Year = {2015},
Address = {Chester, UK},
Month = {September},
Pages = {103--112},
Owner = {schumann},
Timestamp = {2015.09.18}
}
Illustrative Multi-volume Rendering for PET/CT Scans
Abstract?In this paper we present illustrative visualization techniques for PET/CT datasets. PET/CT scanners acquire both PET and CT image data in order to combine functional metabolic information with structural anatomical information. Current visualization techniques mainly rely on 2D image fusion techniques to convey this combined information to physicians. We introduce an illustrative 3D visualization technique, specifically designed for use with PET/CT datasets. This allows the user to easily detect foci in the PET data and to localize these regions by providing anatomical contextual information from the CT data. Furthermore, we provide transfer function specifically designed for PET data that facilitates the investigation of interesting regions. Our technique allows users to get a quick overview of regions of interest and can be used in treatment planning, doctor-patient communication and interdisciplinary communication. We conducted a qualitative evaluation with medical experts to validate the utility of our method in clinical practice.
Proc. of the 10th International Conference on Computer Graphics Theory and Applications (GRAPP), pp. 379-390, 2015
@InProceedings{Saalfeld_2015_GRAPP,
Title = {{Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow}},
Author = {Patrick Saalfeld and Alexandra Baer and Uta Preim and Bernhard Preim and Kai Lawonn},
Booktitle = {{Proc. of the 10th International Conference on Computer Graphics Theory and Applications (GRAPP)}},
Year = {2015},
Address = {Berlin},
Month = {März},
Pages = {379--390},
Owner = {saalfeld},
Timestamp = {2015.01.19}
}
Title = {{Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow}},
Author = {Patrick Saalfeld and Alexandra Baer and Uta Preim and Bernhard Preim and Kai Lawonn},
Booktitle = {{Proc. of the 10th International Conference on Computer Graphics Theory and Applications (GRAPP)}},
Year = {2015},
Address = {Berlin},
Month = {März},
Pages = {379--390},
Owner = {saalfeld},
Timestamp = {2015.01.19}
}
Flatmap
Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow
In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP), pp. 169-176, 2014
@InProceedings{Glasser_2014_GRAPP,
Title = {{Visualization of 3D Cluster Results for Medical Tomographic Image Data}},
Author = {Sylvia Glaßer and Kai Lawonn and Bernhard Preim},
Booktitle = {{In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP)}},
Year = {2014},
Pages = {169--176},
Owner = {glasser},
Timestamp = {2014.01.01}
}
Title = {{Visualization of 3D Cluster Results for Medical Tomographic Image Data}},
Author = {Sylvia Glaßer and Kai Lawonn and Bernhard Preim},
Booktitle = {{In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP)}},
Year = {2014},
Pages = {169--176},
Owner = {glasser},
Timestamp = {2014.01.01}
}
Video of 3D Cluster View
Overview of the 3D Clustering Visualization
Computer Graphics Forum (Eurographics Conference on Visualization (EuroVis) 2014), 33(3), pp. 181-190, 2014
@Article{Lawonn_2014_CGF,
Title = {{Line Integral Convolution for Real-Time Illustration of Molecular Surface Shape and Salient Regions}},
Author = {Kai Lawonn and Michael Krone and Thomas Ertl and Bernhard Preim},
Journal = {{Computer Graphics Forum (Eurographics Conference on Visualization (EuroVis) 2014)}},
Year = {2014},
Pages = {181--190},
Volume = {33(3)},
Owner = {schumann},
Timestamp = {2013.05.24}
}
Title = {{Line Integral Convolution for Real-Time Illustration of Molecular Surface Shape and Salient Regions}},
Author = {Kai Lawonn and Michael Krone and Thomas Ertl and Bernhard Preim},
Journal = {{Computer Graphics Forum (Eurographics Conference on Visualization (EuroVis) 2014)}},
Year = {2014},
Pages = {181--190},
Volume = {33(3)},
Owner = {schumann},
Timestamp = {2013.05.24}
}
Teaser
We present a novel line drawing algorithm that illustrates surfaces in real-time to convey their shape. We use line integral convolution (LIC) and employ ambient occlusion for illustrative surface rendering. Furthermore, our method depicts salient regions based on the illumination gradient. Our method works on animated surfaces in a frame-coherent manner. Therefore, it yields an illustrative representation of time-dependent surfaces as no preprocessing step is needed. In this paper, the method is used to highlight the structure of molecular surfaces and to illustrate important surface features like cavities, channels, and pockets. The benefit of our method was evaluated with domain experts. We also demonstrate the applicability of our method to medical visualization.
Computer Graphics Forum, 33(8), pp. 16-27, 2014
@Article{Lawonn_2014_CGFb,
Title = {{Adaptive Surface Visualization of Vessels with Animated Blood Flow}},
Author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2014},
Pages = {16--27},
Volume = {33(8)},
Owner = {lawonn},
Timestamp = {2014.03.21}
}
Title = {{Adaptive Surface Visualization of Vessels with Animated Blood Flow}},
Author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2014},
Pages = {16--27},
Volume = {33(8)},
Owner = {lawonn},
Timestamp = {2014.03.21}
}
Teaser
The investigation of hemodynamic information for the assessment of cardiovascular diseases (CVDs) gained importance in recent years. Improved flow measuring modalities and computational fluid dynamics (CFD) simulations yield in reliable blood flow information. For a visual exploration of the flow information, domain experts are used to investigate the flow information combined with its enclosed vessel anatomy. Since the flow is spatially embedded in the surrounding vessel surface, occlusion problems have to be resolved. A visual reduction of the vessel surface that still provides important anatomical features is required. We accomplish this by applying an adaptive surface visualization inspired by the suggestive contour measure. Furthermore, an illustration is employed to highlight the animated pathlines and to emphasize nearby surface regions. Our approach combines several visualization techniques to improve the perception of surface shape and depth. Thereby, we ensure appropriate visibility of the embedded flow information, which can be depicted with established or advanced flow visualization techniques. We apply our approach to cerebral aneurysms and aortas with simulated and measured blood flow. An informal user feedback with nine domain experts, we confirm the advantages of our approach compared with existing methods, e.g. semi-transparent surface rendering. Additionally, we assessed the applicability and usefulness of the pathline animation with highlighting nearby surface regions.
EuroVis - Short Papers, pp. 5-, 2014
@InProceedings{Lawonn_2014_EuroVis,
Title = {Coherent View-Dependent Streamlines for Understanding Blood Flow},
Author = {Kai Lawonn and Tobias Günther and Bernhard Preim},
Booktitle = {EuroVis - Short Papers},
Year = {2014},
Pages = {5 Seiten},
Owner = {lawonn},
Timestamp = {2014.05.02}
}
Title = {Coherent View-Dependent Streamlines for Understanding Blood Flow},
Author = {Kai Lawonn and Tobias Günther and Bernhard Preim},
Booktitle = {EuroVis - Short Papers},
Year = {2014},
Pages = {5 Seiten},
Owner = {lawonn},
Timestamp = {2014.05.02}
}
Teaser
The expressive visualization of (time-dependent) 3D blood flow along with the vessel wall is essential for understanding vascular diseases. However, the high complexity of the underlying flow data makes the exploration challenging. For the biomedical research, it is necessary to provide methods that allow for rapid flow comprehension, ideally by emphasizing relevant flow characteristics. Therefore, we present a fast approach that visualizes streamlines in a view-dependent way, while taking relevant flow features into consideration. For this, we adapt a well-established non-photorealistic rendering technique (suggestive contours) for surface meshes to streamline illustrations. The advantages of our approach are confirmed in an informal user feedback with domain experts, who were able to comprehend the overall flow behavior faster.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 20(5), pp. 686-701, 2014
@Article{Oeltze_2014_TVCG,
Title = {{Blood Flow Clustering and Applications in Virtual Stenting of Intracranial Aneurysms}},
Author = {Steffen Oeltze and Dirk J. Lehmann and Alexander Kuhn and Gabor Janiga and Holger Theisel and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2014},
Pages = {686--701},
Volume = {20(5)},
Keywords = {TVCG,d},
Owner = {oeltze},
Timestamp = {2014.01.01}
}
Title = {{Blood Flow Clustering and Applications in Virtual Stenting of Intracranial Aneurysms}},
Author = {Steffen Oeltze and Dirk J. Lehmann and Alexander Kuhn and Gabor Janiga and Holger Theisel and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2014},
Pages = {686--701},
Volume = {20(5)},
Keywords = {TVCG,d},
Owner = {oeltze},
Timestamp = {2014.01.01}
}
Clustering Blood Flow in a Saccular Side-Wall Aneurysm
The blood flow in a saccular side-wall aneurysm has been simulated based on the vascular morphology extracted from patient-individual data. The resulting flow data is often visualized by a dense and cluttered set of streamlines. Clustering the streamlines and computing cluster representatives reduces visual clutter and exposes characteristic flow structures. The resulting flow summary benefits the assessment of aneurysmal hemodynamics.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 19(12), pp. 2773-2782, 2013
@Article{Koehler_2013_TVCG,
Title = {{Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow Data using Line Predicates}},
Author = {B. Köhler and R. Gasteiger and U. Preim and H. Theisel and M. Gutberlet and B. Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2013},
Pages = {2773--2782},
Volume = {19(12)},
Owner = {schumann},
Timestamp = {2013.08.08}
}
Title = {{Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow Data using Line Predicates}},
Author = {B. Köhler and R. Gasteiger and U. Preim and H. Theisel and M. Gutberlet and B. Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2013},
Pages = {2773--2782},
Volume = {19(12)},
Owner = {schumann},
Timestamp = {2013.08.08}
}
Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow Data using Line Predicates
Computer Graphics Forum, 32(3), pp. 321-330, 2013
@Article{Lawonn_2013_CGF,
Title = {{Streamlines for Illustrative Real-time Rendering}},
Author = {Kai Lawonn and Tobias Mönch and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2013},
Pages = {321--330},
Volume = {32(3)},
Owner = {schumann},
Timestamp = {2013.05.24}
}
Title = {{Streamlines for Illustrative Real-time Rendering}},
Author = {Kai Lawonn and Tobias Mönch and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2013},
Pages = {321--330},
Volume = {32(3)},
Owner = {schumann},
Timestamp = {2013.05.24}
}
Method
Overview of the method
Examples
Miscellaneous Models
VMV 2013 - Vision Modeling Visualization, pp. 113-120, 2013
@InProceedings{Lawonn_2013_VMV,
Title = {{Adaptive Surface Visualization of Vessels with Embedded Blood Flow Based on the Suggestive Contour Measure}},
Author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
Booktitle = {{VMV 2013 - Vision, Modeling, Visualization}},
Year = {2013},
Address = {Lugano},
Editor = {Michael Bronstein, Jean Favre, and Kai Hormann},
Month = {11.-13. September},
Pages = {113--120}
}
Title = {{Adaptive Surface Visualization of Vessels with Embedded Blood Flow Based on the Suggestive Contour Measure}},
Author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
Booktitle = {{VMV 2013 - Vision, Modeling, Visualization}},
Year = {2013},
Address = {Lugano},
Editor = {Michael Bronstein, Jean Favre, and Kai Hormann},
Month = {11.-13. September},
Pages = {113--120}
}
Video
Overview of the method
Computer Graphics Forum, 32(3), pp. 251-260, 2013
@Article{Neugebauer_2013_CGF,
Title = {{AmniVis - A System for Qualitative Exploration of Near-Wall Hemodynamics in Cerebral Aneurysms}},
Author = {Mathias Neugebauer and Kai Lawonn and Oliver Beuing and Philipp Berg and Gabor Janiga and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2013},
Pages = {251--260},
Volume = {32(3)},
Owner = {schumann},
Timestamp = {2013.05.24}
}
Title = {{AmniVis - A System for Qualitative Exploration of Near-Wall Hemodynamics in Cerebral Aneurysms}},
Author = {Mathias Neugebauer and Kai Lawonn and Oliver Beuing and Philipp Berg and Gabor Janiga and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2013},
Pages = {251--260},
Volume = {32(3)},
Owner = {schumann},
Timestamp = {2013.05.24}
}
AmniVis
AmniVis - A system for visual qualitative exploration of near-wall flow patterns in cerebral aneurysms.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 18(12), pp. 2178-2187, 2012
@Article{Gasteiger_2012_VIS,
Title = {{Automatic Detection and Visualization of Qualitative Hemodynamic Characteristics in Cerebral Aneurysms}},
Author = {Rocco Gasteiger and Dirk J. Lehmann and Roy van Pelt and Gabor Janiga and Oliver Beuing and Anna Vilanova and Holger Theisel and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2012},
Month = {December},
Number = {12},
Pages = {2178--2187},
Volume = {18(12)},
Doi = {xx.xxxx/xxxxxxx.xxxxxxx}
}
Title = {{Automatic Detection and Visualization of Qualitative Hemodynamic Characteristics in Cerebral Aneurysms}},
Author = {Rocco Gasteiger and Dirk J. Lehmann and Roy van Pelt and Gabor Janiga and Oliver Beuing and Anna Vilanova and Holger Theisel and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2012},
Month = {December},
Number = {12},
Pages = {2178--2187},
Volume = {18(12)},
Doi = {xx.xxxx/xxxxxxx.xxxxxxx}
}
Video
The video presents the automatically extracted inflow jet and impingement zone of a steady flow dataset in a cerebral aneurysm. The extraction approach is based on the inflow streamlines seeded at the ostium and employs local streamline properties (e.g., curvature and distances to the aneurysm wall). Several visualization techniques depict both characteristics.
VCBM 2012 - Eurographics Workshop on Visual Computing for Biology and Medicine, pp. 91-98, 2012
@InProceedings{Moench_2012_VCBM,
Title = {{Visually Guided Mesh Smoothing for Medical Applications}},
Author = {Tobias Mönch and Christoph Kubisch and Kai Lawonn and Rüdiger Westermann and Bernhard Preim},
Booktitle = {{VCBM 2012 - Eurographics Workshop on Visual Computing for Biology and Medicine}},
Year = {2012},
Address = {Norrköping},
Month = {September},
Pages = {91--98},
Keywords = {VCBM,d},
Owner = {schumann},
Timestamp = {2012.10.09}
}
Title = {{Visually Guided Mesh Smoothing for Medical Applications}},
Author = {Tobias Mönch and Christoph Kubisch and Kai Lawonn and Rüdiger Westermann and Bernhard Preim},
Booktitle = {{VCBM 2012 - Eurographics Workshop on Visual Computing for Biology and Medicine}},
Year = {2012},
Address = {Norrköping},
Month = {September},
Pages = {91--98},
Keywords = {VCBM,d},
Owner = {schumann},
Timestamp = {2012.10.09}
}
Video 1
Sample video of realtime mesh smoothing with mouse movements mapped onto smoothing parameters.
Video 2
Sample video of realtime mesh smoothing. Quality measures, such as local errors, volume preservation, and curvature are computed in realtime.
Video 3
Sample video of realtime mesh smoothing. Parameter suggestions may be generated for patient-specific data based on only one parameter - the target smoothness.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 17, pp. 2183-2192, 2011
@Article{Gasteiger_2011_VIS,
Title = {{The FLOWLENS: A Focus-and-Context Visualization Approach for Exploration of Blood Flow in Cerebral Aneurysms}},
Author = {Rocco Gasteiger and Mathias Neugebauer and Oliver Beuing and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2011},
Number = {12},
Pages = {2183-2192},
Volume = {17},
Keywords = {VIS, d},
Owner = {Rocco Gasteiger},
Timestamp = {2011.07.19}
}
Title = {{The FLOWLENS: A Focus-and-Context Visualization Approach for Exploration of Blood Flow in Cerebral Aneurysms}},
Author = {Rocco Gasteiger and Mathias Neugebauer and Oliver Beuing and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2011},
Number = {12},
Pages = {2183-2192},
Volume = {17},
Keywords = {VIS, d},
Owner = {Rocco Gasteiger},
Timestamp = {2011.07.19}
}
Lens-Based Flow Exploration of Cerebral Aneurysms
This video presents the FlowLens concept, a visual exploration approach of blood flow data in cerebral aneurysms. Relevant hemodynamic attributes, e.g., wall shear stress or pressure, are grouped to focus-and-context pairs and assigned to three different spatial scopes (global, near-wall, aneurysm). A 2.5D lens shape is used to embed locally the visualization of the context attribute within the focus attribute.
Computer Graphics Forum (EuroVis), 30(3), pp. 1041-1050, 2011
@Article{Neugebauer_2011_Eurovis,
Title = {{Anatomy-Guided Multi-Level Exploration of Blood Flow in Cerebral Aneurysms}},
Author = {Mathias Neugebauer and Gabor Janiga and Oliver Beuing and Martin Skalej and Bernhard Preim},
Journal = {{Computer Graphics Forum (EuroVis)}},
Year = {2011},
Pages = {1041--1050},
Volume = {30(3)},
Owner = {Mathias},
Timestamp = {2011.04.04}
}
Title = {{Anatomy-Guided Multi-Level Exploration of Blood Flow in Cerebral Aneurysms}},
Author = {Mathias Neugebauer and Gabor Janiga and Oliver Beuing and Martin Skalej and Bernhard Preim},
Journal = {{Computer Graphics Forum (EuroVis)}},
Year = {2011},
Pages = {1041--1050},
Volume = {30(3)},
Owner = {Mathias},
Timestamp = {2011.04.04}
}
Anatomy-Guided Multi-Level Exploration of Blood Flow
We present a three-scope approach for qualitative visual exploration of blood flow data. The scopes include a global scope, an ostium scope and a local scope. They are related to anatomic features such as the centerline, the ostium or the central aneurysm axis. The exploration includes multi-parameter visualisations and specialized widgets.
IEEE Transactions on Visualization and Computer Graphics (TVCG), 17(12), pp. 1882-1891, 2011
@Article{Oeltze_2011_VIS,
Title = {{Interactive, Graph-Based Visual Analysis of High-Dimensional, Multi-Parameter Fluorescence Microscopy Data in Toponomics}},
Author = {Steffen Oeltze and Wolfgang Freiler and Reyk Hillert and Helmut Doleisch and Bernhard Preim and Walter Schubert},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2011},
Note = {to appear},
Pages = {1882--1891},
Volume = {17(12)},
Comment = {to appear},
Keywords = {VIS, d},
Owner = {Steffen Oeltze},
Timestamp = {2011.08.16}
}
Title = {{Interactive, Graph-Based Visual Analysis of High-Dimensional, Multi-Parameter Fluorescence Microscopy Data in Toponomics}},
Author = {Steffen Oeltze and Wolfgang Freiler and Reyk Hillert and Helmut Doleisch and Bernhard Preim and Walter Schubert},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2011},
Note = {to appear},
Pages = {1882--1891},
Volume = {17(12)},
Comment = {to appear},
Keywords = {VIS, d},
Owner = {Steffen Oeltze},
Timestamp = {2011.08.16}
}
Interactive Visual Analysis of Toponome Data
Interactive, graph-based visual analysis of toponome data. This special kind of data depicts the location and topological distribution of proteins in a cell or tissue sample. The particular data shown in the video represents a probe containing lymphocytes. The visual analysis framework supports the biologist in detecting and understanding a cell's function protein patterns.
Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM), pp. 25-32, 2010
@InProceedings{Gasteiger_2010_VCBM,
Title = {{Adapted Surface Visualization of Cerebral Aneurysms with Embedded Blood Flow Information}},
Author = {Rocco Gasteiger and Mathias Neugebauer and Christoph Kubisch and Bernhard Preim},
Booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM)}},
Year = {2010},
Pages = {25-32},
Keywords = {VCBM;d},
Owner = {schumann},
Timestamp = {2010.04.19}
}
Title = {{Adapted Surface Visualization of Cerebral Aneurysms with Embedded Blood Flow Information}},
Author = {Rocco Gasteiger and Mathias Neugebauer and Christoph Kubisch and Bernhard Preim},
Booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM)}},
Year = {2010},
Pages = {25-32},
Keywords = {VCBM;d},
Owner = {schumann},
Timestamp = {2010.04.19}
}
Adaptive Surface Visualization
This video presents a new adaptive visualization technique of Cerebral Aneurysms with Embedded Blood Flow Information. It combines smart visibility techniques, depth cues, and line rendering. More flow perception is achieved in comparison to semi-transparent surface visualization of the enclosing aneurysm.
Computer Graphics Forum, 29 (1), pp. 191-201, 2010
@Article{Glasser_2010_CGF,
Title = {{Automatic Transfer Function Specification for Visual Emphasis of Coronary Artery Plaque}},
Author = {Sylvia Glaßer and Steffen Oeltze and Anja Hennemuth and Christoph Kubisch and A. Mahnken and S. Wilhelmsen and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2010},
Month = {Januar},
Number = {1},
Pages = {191--201},
Volume = {29 (1)},
Keywords = {CGF,d},
Owner = {schumann},
Timestamp = {2010.02.10}
}
Title = {{Automatic Transfer Function Specification for Visual Emphasis of Coronary Artery Plaque}},
Author = {Sylvia Glaßer and Steffen Oeltze and Anja Hennemuth and Christoph Kubisch and A. Mahnken and S. Wilhelmsen and Bernhard Preim},
Journal = {{Computer Graphics Forum}},
Year = {2010},
Month = {Januar},
Number = {1},
Pages = {191--201},
Volume = {29 (1)},
Keywords = {CGF,d},
Owner = {schumann},
Timestamp = {2010.02.10}
}
Supplemental Material
Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), pp. 83-90, 2010
@InProceedings{Moench_2010_VCBM,
Title = {{Staircase-Aware Smoothing of Medical Surface Meshes}},
Author = {Tobias Mönch and Simon Adler and Bernhard Preim},
Booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM)}},
Year = {2010},
Pages = {83--90},
Keywords = {VCBM,d},
Owner = {tmoench},
Timestamp = {2010.05.03}
}
Title = {{Staircase-Aware Smoothing of Medical Surface Meshes}},
Author = {Tobias Mönch and Simon Adler and Bernhard Preim},
Booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM)}},
Year = {2010},
Pages = {83--90},
Keywords = {VCBM,d},
Owner = {tmoench},
Timestamp = {2010.05.03}
}
Staircase-Aware Examples
Example of locally adaptive mesh smoothing using a staircase-aware approach.
Staircase-Aware Adjustment
Example of locally adaptive mesh smoothing using a staircase-aware approach. The video shows the adjustment of different parameters.
VMV 2010 - Vision Modeling Visualization, pp. 307-314, 2010
@InProceedings{Neugebauer_2010_VMV,
Title = {{Geometric Reconstruction of the Ostium of Cerebral Aneurysms}},
Author = {Mathias Neugebauer and Volker Diehl and Martin Skalej and Bernhard Preim},
Booktitle = {{VMV 2010 - Vision, Modeling, Visualization}},
Year = {2010},
Address = {Siegen},
Editor = {Reinhard Koch and Andreas Kolb and Christopf Rezk-Salama},
Month = {15.-17. November},
Pages = {307--314},
Keywords = {VMV,d},
Owner = {schumann},
Timestamp = {2010.11.29}
}
Title = {{Geometric Reconstruction of the Ostium of Cerebral Aneurysms}},
Author = {Mathias Neugebauer and Volker Diehl and Martin Skalej and Bernhard Preim},
Booktitle = {{VMV 2010 - Vision, Modeling, Visualization}},
Year = {2010},
Address = {Siegen},
Editor = {Reinhard Koch and Andreas Kolb and Christopf Rezk-Salama},
Month = {15.-17. November},
Pages = {307--314},
Keywords = {VMV,d},
Owner = {schumann},
Timestamp = {2010.11.29}
}
Reconstruction of the Ostium
This video presents an approach to automatically extract important landmarks and geometrically reconstruct the ostium. As shown, the ostium can be used to seperate the aneurysm from the parent vessel. It forms the basis for a variety of applications, e.g. feature-aware visualization or guided interaction.
Computer Graphics Forum (EuroVis), pp. 895-902, 2009
@InProceedings{Neugebauer_2009_Eurovis,
Title = {{Map Displays for the Analysis of Scalar Data on Cerebral Aneurysm Surfaces}},
Author = {Mathias Neugebauer and Rocco Gasteiger and Oliver Beuing and Volker Diehl and Martin Skalej and Bernhard Preim},
Booktitle = {{Computer Graphics Forum (EuroVis)}},
Year = {2009},
Address = {Berlin},
Month = {10.-12. Juni},
Pages = {895--902},
Volume = {28 (3)},
Keywords = {Eurovis,d},
Owner = {schumann},
Timestamp = {2009.06.25}
}
Title = {{Map Displays for the Analysis of Scalar Data on Cerebral Aneurysm Surfaces}},
Author = {Mathias Neugebauer and Rocco Gasteiger and Oliver Beuing and Volker Diehl and Martin Skalej and Bernhard Preim},
Booktitle = {{Computer Graphics Forum (EuroVis)}},
Year = {2009},
Address = {Berlin},
Month = {10.-12. Juni},
Pages = {895--902},
Volume = {28 (3)},
Keywords = {Eurovis,d},
Owner = {schumann},
Timestamp = {2009.06.25}
}
Flatmap
An overview visualization for scalar values (in this case wall shear stress) mapped on the aneurysm surface.
@InProceedings{Oeltze_2008_VCBM,
Title = {{Glyph-Based Visualization of Myocardial Perfusion Data and Enhancement with Contractility and Viability Information}},
Author = {Steffen Oeltze and Anja Hennemuth and Sylvia Glaßer and Caroline Kühnel and Bernhard Preim},
Booktitle = {{VCBM}},
Year = {2008},
Pages = {11--20},
Keywords = {VCBM,d},
Owner = {schumann},
Timestamp = {2008.09.03}
}
Title = {{Glyph-Based Visualization of Myocardial Perfusion Data and Enhancement with Contractility and Viability Information}},
Author = {Steffen Oeltze and Anja Hennemuth and Sylvia Glaßer and Caroline Kühnel and Bernhard Preim},
Booktitle = {{VCBM}},
Year = {2008},
Pages = {11--20},
Keywords = {VCBM,d},
Owner = {schumann},
Timestamp = {2008.09.03}
}
Glyphs for encoding myocardial perfusion in 3D
Video illustrating the development and application of glyphs to encoding
IEEE Transactions on Visualization and Computer Graphics (TVCG), 13, pp. 1392-1399, 2007
@Article{Oeltze_2007_TVCG,
Title = {{Interactive Visual Analysis of Perfusion Data}},
Author = {Steffen Oeltze and Helmut Doleisch and Helwig Hauser and Philipp Muigg and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2007},
Month = {28. October - 1. November},
Number = {6},
Pages = {1392--1399},
Volume = {13},
File = {IEEEVIS_Oeltze_VAoPD_2007.pdf:http\://wwwisg.cs.uni-magdeburg.de/cv/pub/files/IEEEVIS_Oeltze_VAoPD_2007.pdf:PDF},
Keywords = {TVCG,d},
Owner = {schumann},
Timestamp = {2007.11.05}
}
Title = {{Interactive Visual Analysis of Perfusion Data}},
Author = {Steffen Oeltze and Helmut Doleisch and Helwig Hauser and Philipp Muigg and Bernhard Preim},
Journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
Year = {2007},
Month = {28. October - 1. November},
Number = {6},
Pages = {1392--1399},
Volume = {13},
File = {IEEEVIS_Oeltze_VAoPD_2007.pdf:http\://wwwisg.cs.uni-magdeburg.de/cv/pub/files/IEEEVIS_Oeltze_VAoPD_2007.pdf:PDF},
Keywords = {TVCG,d},
Owner = {schumann},
Timestamp = {2007.11.05}
}
Interactive visual analysis in breast tumor diagnosis
Video showing the interactive visual analysis of a dataset from breast tumor
IEEE/Eurographics Symposium on Visualization, pp. 131-138, 2006
@InProceedings{Oeltze_2006_Eurovis,
Title = {{Integrated Visualization of Morphologic and Perfusion Data for the Analysis of Coronary Artery Disease}},
Author = {Steffen Oeltze and Frank Grothues and Anja Hennemuth and Anja Kuß and Bernhard Preim},
Booktitle = {{IEEE/Eurographics Symposium on Visualization}},
Year = {2006},
Pages = {131--138},
Publisher = {Springer},
Series = {Informatik aktuell},
File = {Oeltze_EuroVis_2006_CAD.pdf:http\://wwwisg.cs.uni-magdeburg.de/cv/pub/files/Oeltze_EuroVis_2006_CAD.pdf:PDF},
Keywords = {Eurovis,d},
Owner = {schumann},
Timestamp = {2009.09.17}
}
Title = {{Integrated Visualization of Morphologic and Perfusion Data for the Analysis of Coronary Artery Disease}},
Author = {Steffen Oeltze and Frank Grothues and Anja Hennemuth and Anja Kuß and Bernhard Preim},
Booktitle = {{IEEE/Eurographics Symposium on Visualization}},
Year = {2006},
Pages = {131--138},
Publisher = {Springer},
Series = {Informatik aktuell},
File = {Oeltze_EuroVis_2006_CAD.pdf:http\://wwwisg.cs.uni-magdeburg.de/cv/pub/files/Oeltze_EuroVis_2006_CAD.pdf:PDF},
Keywords = {Eurovis,d},
Owner = {schumann},
Timestamp = {2009.09.17}
}
Integrated visualization of cardiac perfusion and anatomy
Video illustrating the integration of myocardial perfusion and ventricular as well as vascular anatomy of a patient suffering from atherosclerosis. (Data is courtesy of M. Fenchel, S. Miller and A. Seeger, Max Planck MR-center, University of Tübingen, Germany, S. Achenbach, Department of Radiology, University of Erlangen-Nürnberg, Germany, and SIEMENS Healthcare)
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