News

14/03/2017 --- Together with Monique Meuschke, Wito Engelke, Oliver Beuing, and Bernhard Preim we received the 3rd price of the BVM best paper award.

08/09/2016 --- I contributed to two winning submissions at the MedViz image contest 2016. The first image was PelVIS by Noeska Smit, Kai Lawonn, Annelot Kraima, Marco de Ruiter, Hessam Sokooti, Stefan Bruckner, Elmar Eisemann, Anna Vilanova and the the second image was Turbulent flow in an aorta by Niels de Hoon, Kai Lawonn, Andrei Jalba, Elmar Eisemann, Anna Vilanova. Both images were rewarded with 1.000 NOK.

09/05/2016 --- I was awarded with the Eurographics Phd Award at this year's Eurographics main conference. A description with images can be found on the medvis.org site.

01/11/2015 --- I become one of the chairs of the EuroRV3, i.e., the EuroVis Workshop on Reproducibility, Verification, and Validation in Visualization. This year, the workshop is subtitled “From Medical Visualization Concepts to Certified Applications”.

01/10/2015 --- I become a junior professor for the medical visualization group of the Institute for Computational Visualistics at the University of Koblenz · Landau.

12/08/2015 --- I become a new contributor for the medvis.org site.

11/05/2015 --- I was nominated for the GI award for the best Phd thesis in computer science 2014.

14/04/2015 --- I gave a presentation about three.js at the TU Delft.

01/03/2015 --- I joined the graphics and visualization group headed by Prof. Elmar Eisemann for a few months where I am supervised by Dr. Anna Vilanova.

20/11/2014 --- Dissertation award: My Phd thesis was awarded as the best thesis of the university.

06/11/2014 --- Invited talk: I give an invited talk at MPI in Saarbrücken about illustrative visualization.

01/10/2014 --- Best Phd Thesis Award: My Phd thesis was selected as the best Phd thesis of the faculty in the academic year (01.10.2013 - 30.09.2014).

15/09/2014 --- Successfully defended my PhD thesis, entitled:
Illustrative Visualization of Medical Data Sets.

Committee:

Publications

2017

Nils Lichtenberg, Christian Hansen, Kai Lawonn: Concentric Circle Glyphs for Enhanced Depth-Judgment in Vascular Models , Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), in print, 2017

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Julian Hettig, Gabriel Mistelbauer, Christian Rieder, Kai Lawonn, Christian Hansen: Visual Navigation Support for Liver Applicator Placement using Interactive Map Displays , Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), in print, 2017

Monique Meuschke, Samuel Voß, Oliver Beuing, Bernhard Preim, Kai Lawonn: Glyph-Based Comparative Stress Tensor Visualization in Cerebral Aneurysms Computer Graphics Forum 36(3), 99-109, 2017

Kai Lawonn, Maria Luz, Christian Hansen: Improving Spatial Perception of Vascular Models using Supporting Anchors and Illustrative Visualization, International Journal of Systems & Applications in Computer Graphics, in print, 2017

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Monique Meuschke, Wito Engelke, Oliver Beuing, Bernhard Preim, Kai Lawonn: Automatic Viewpoint Selection for Exploration of Time-dependent Cerebral Aneurysm Data, Bildverarbeitung für die Medizin (BVM), in print, 2017
BVM - Best paper award (3rd)
Kai Lawonn, Erik Trostmann, Bernhard Preim, Klaus Hildebrandt: Visualization and Extraction of Carvings for Heritage Conservation , IEEE Transactions on Visualization and Computer Graphics (TVCG), in print, 2016
Monique Meuschke, Samuel Voss, Oliver Beuing, Bernhard Preim, Kai Lawonn: Combined Visualization of Vessel Deformation and Hemodynamics in Cerebral Aneurysms , IEEE Transactions on Visualization and Computer Graphics (TVCG), in print, 2016

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Noeska Natasja Smit, Kai Lawonn, Anne C. Kraima, Marco C. Deruiter, Hessam Sokooti, Stefan Bruckner, Elmar Eisemann, Anna Vilanova: PelVis: Atlas-based Surgical Planning for Oncological Pelvic Surgery, IEEE Transactions on Visualization and Computer Graphics (TVCG), in print, 2016

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2016

Nils Lichtenberg, Noeska Smit, Christian Hansen, Kai Lawonn: Sline: Seamless Line Illustration for Interactive Biomedical Visualization , Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), in print, 2016

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Monique Meuschke, Benjamin Köhler, Uta Preim, Bernhard Preim, Kai Lawonn: Semi-automatic Vortex Flow Classification in 4D PC-MRI Data of the Aorta Computer Graphics Forum 35(3), in print, June 2016

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Kai Lawonn, Bernhard Preim: Feature Lines for Illustrating Medical Surface Models: Mathematical Background and Survey, Visualization in Medicine and Life Sciences III, pp. 93-132, 2015
Patrick Saalfeld, Alexandra Baer, Uta Preim, Bernhard Preim, Kai Lawonn: 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
Monique Meuschke, Kai Lawonn, Benjamin Köhler, Uta Preim, Bernhard Preim: Clustering of Aortic Vortex Flow in Cardiac 4D PC-MRI Data, Bildverarbeitung für die Medizin (BVM), pp. 182-187, 2016

2015

Kai Lawonn, Noeska Smit, Bernhard Preim, Anna Vilanova: Illustrative Multi-volume Rendering for PET/CT Scans, Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), pp. 103-112, 2015

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Kai Lawonn, Sylvia Glaßer, Anna Vilanova, Bernhard Preim, Tobias Isenberg: Occlusion-free Blood Flow Animation with Wall Thickness Visualization, IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 728-737, 2015

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Paul Klemm, Kai Lawonn, Sylvia Glaßer, Uli Niemann, Katrin Hegenscheid, Henry Völzke, Bernhard Preim: 3D Regression Heat Map Analysis of Population Study Data, IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 81-90, 2015
Changgong Zhang, Thomas Schultz, Kai Lawonn, Elmar Eisemann, Anna Vilanova: Glyph-based Comparative Visualization for Diffusion Tensor Fields, IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 797-806, 2015
Kai Lawonn, Maria Luz, Bernhard Preim, Christian Hansen: Illustrative Visualization of Vascular Models for Static 2D Representations, International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), pp. 399-406, 2015

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Kai Lawonn: Illustrative Visualisierung von medizinischen Datensätzen, Ausgezeichnete Informatikdissertationen 2014 (German). GI, 2015
Kai Lawonn, Michael Krone, Thomas Ertl, Bernhard Preim: On the Reproducibility of Line Integral Convolution for Real-Time Illustration of Molecular Surface Shape and Salient Regions, EuroRV3: EuroVis Workshop, 2015
Patrick Saalfeld, Alexandra Baer, Uta Preim, Bernhard Preim, Kai Lawonn: Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow, In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP), pp. 379-390, 2015

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- Executable Files
Paul Klemm, Sylvia Glaßer, Kai Lawonn, Marko Rak, Henry Völzke, Katrin Hegenscheid, Bernhard Preim: Interactive Visual Analysis of Lumbar Back Pain, In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP), pp. 85-92, 2015
Alexandra Baer, Kai Lawonn, Patrick Saalfeld, Bernhard Preim: Statistical Analysis of a Qualitative Evaluation on Feature Lines, Bildverarbeitung für die Medizin (BVM), pp. 71-76, 2015
Patrick Saalfeld, Alexandra Baer, Kai Lawonn, Uta Preim, Bernhard Preim: Verwendung des 3D-User Interfaces zSpace zur Exploration und Inspektion von Wirbeln der Halswirbelsäule, Bildverarbeitung für die Medizin (BVM), pp. 83-88, 2015

2014

Kai Lawonn, Alexandra Baer, Patrick Saalfeld, Bernhard Preim: Comparative Evaluation of Feature Line Techniques for Shape Depiction Proc. of Vision Modeling and Visualization, pp. 31-38, 2014
Sylvia Glaßer, Kai Lawonn, Thomas Hoffmann, Martin Skalej, Bernhard Preim: Combined Visualization of Wall Thickness and Wall Shear Stress for the Evaluation of Aneurysms, IEEE Transactions on Visualization and Computer Graphics (TVCG), 20(12), pp. 2506-2515, 2014.

Paul Klemm, Steffen Oeltze-Jafra, Kai Lawonn, Katrin Hegenscheid, Henry Völzke, Bernhard Preim: Interactive Visual Analysis of Image-Centric Cohort Study Data, IEEE Transactions on Visualization and Computer Graphics (TVCG), 20(12), pp. 1673-1682, 2014.

Kai Lawonn, Michael Krone, Thomas Ertl, Bernhard Preim: Line Integral Convolution for Real-Time Illustration of Molecular Surface Shape and Salient Regions, Computer Graphics Forum (Eurographics Conference on Visualization (EuroVis) 2014), 33(3), pp. 181-190, 2014.

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Roy van Pelt, Rocco Gasteiger, Kai Lawonn, Monique Meuschke, Bernhard Preim: Comparative Blood Flow Visualization for Cerebral Aneurysm Treatment Assessment, Computer Graphics Forum (Eurographics Conference on Visualization (EuroVis) 2014), 33(3), pp. 131-140, 2014.
Kai Lawonn, Rocco Gasteiger, Bernhard Preim: Adaptive Surface Visualization of Vessels with Animated Blood Flow, Computer Graphics Forum, 33(8), pages 16–27, December 2014

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Kai Lawonn, Tobias Günther, Bernhard Preim: Coherent View-Dependent Streamlines for Understanding Blood Flow, EuroVis - Short Papers, pp. 5-, 2014

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Kai Lawonn, Rocco Gasteiger, Christian Rössl, Bernhard Preim: Adaptive and Robust Curve Smoothing on Surface Meshes, Computers and Graphics, 40, pp. 22-35, 2014
Kai Lawonn, Patrick Saalfeld, Bernhard Preim: Illustrative Visualization of Endoscopic Views, Bildverarbeitung für die Medizin (BVM), pp. 276-281, 2014
Sylvia Glaßer, Kai Lawonn, Bernhard Preim: Visualization of 3D Cluster Results for Medical Tomographic Image Data, In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP), pp. 169-176, 2014

- Video

2013

Kai Lawonn, Rocco Gasteiger, Bernhard Preim: Adaptive Surface Visualization of Vessels with Embedded Blood Flow Based on the Suggestive Contour Measure, VMV 2013 - Vision Modeling Visualization, pp. 113-120, 2013
VMV - Best paper award (3rd)

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Paul Klemm, Kai Lawonn, Marko Rak, Bernhard Preim, Klaus Tönnies, Katrin Hegenscheid, Henry Völzke, Steffen Oeltze: Visualization and Analysis of Lumbar Spine Canal Variability in Cohort Study Data, VMV 2013 - Vision Modeling Visualization, pp. 121-128, 2013
Kai Lawonn, Tobias Mönch, Bernhard Preim: Streamlines for Illustrative Real-time Rendering, Computer Graphics Forum, 32(3), pp. 321-330, 2013

- Video
- Examples
Mathias Neugebauer, Kai Lawonn, Oliver Beuing, Philipp Berg, Gabor Janiga, Bernhard Preim: AmniVis - A System for Qualitative Exploration of Near-Wall Hemodynamics in Cerebral Aneurysms, Computer Graphics Forum, 32(3), pp. 251-260, 2013

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Tobias Mönch, Kai Lawonn, Christoph Kubisch, Rüdiger Westermann, Bernhard Preim : Interactive Mesh Smoothing for Medical Applications, Computer Graphics Forum, 32(8), pp. 110-121, 2013
Mathias Neugebauer, Kai Lawonn, Oliver Beuing, Bernhard Preim: Automatic Generation of Anatomic Characteristics from Cerebral Aneurysm Surface Models, International Journal of Computer Assisted Radiology and Surgery, 8(2), pp. 279-289, 2013
Kai Lawonn, Rocco Gasteiger, Bernhard Preim: Qualitative Evaluation of Feature Lines on Anatomical Surfaces, Bildverarbeitung für die Medizin (BVM), pp. 187-192, 2013

2012

Tobias Mönch, Christoph Kubisch, Kai Lawonn, Rüdiger Westermann, Bernhard Preim: Visually Guided Mesh Smoothing for Medical Applications, VCBM 2012 - Eurographics Workshop on Visual Computing for Biology and Medicine, pp. 91-98, 2012
VCBM - Best paper award (3rd)

- Video 1
- Video 2
- Video 3

Diploma Thesis

Teaching

Winter term 2017/18 Seminar: Illustrative Visualization
Winter term 2017/18
Lecture: Medical Visualization
Summer term 2017 Seminar: Illustrative Visualization
Summer term 2017 Lecture: Mesh Processing
Summer term 2017
Lecture: Medical Image Computing
Winter term 2016/17 Seminar: Illustrative Visualization
Winter term 2016/17 Lecture: Medical Visualization
Winter term 2016/17
Lab Project: Mesh Parametrization
Summer term 2016 Seminar: Practical Illustrative Visualization
Summer term 2016
Lecture: Medical Image Computing
Winter term 2015/16 Seminar: Illustrative Visualization
Winter term 2015/16
Lecture: Medical Visualization
Winter term 2014 Seminar: Illustrative Visualization
Winter term 2014
Exercise: Visualization
Summer term 2014 Exercise: Interactive Systems

Honors & Awards

  • - BVM - Best paper award (3rd), 2017

  • - MedViz Image Contest Award - Turbulent flow in an aorta, 2016

  • - MedViz Image Contest Award - PelVis, 2016

  • - Eurographics Award for Best Phd Thesis, 2016

  • - Best Phd Thesis in Computer Science Award Nomination 2014, 2015

  • - Best Phd Thesis Award (University), 2014

  • - Best Phd Thesis Award (Faculty), 2014

  • - VMV - Best paper award (3rd), 2013

  • - VCBM - Best paper award (3rd), 2012

CV

Education

01/2012 - 04/2014 PhD Degree, Otto-von-Guericke-University, (Defence 15/09/2014), Grade: Summa Cum Laude
04/2006 - 06/2011 Diploma, Freie Universität Berlin, Course: Mathematics (minor subject Physics), Intermediate diploma: 1.0, Diploma: 1.2
08/1998 - 07/2005 Abitur, Carl-Friedrich-Gauß-Gymnasium

Employment

10/2015 - Junior professor for the medical visualization group at the University of Koblenz · Landau
07/2017 - 10/2017 Visiting Scientist at ETH (Switzerland) in the group of Prof. Markus Gross
03/2015 - 10/2015 Visiting Scientist at TU Delft (Netherlands) in the group of Prof. Elmar Eisemann
07/2014 - 10/2014 Visiting Scientist at Inria Team Aviz (France) in the group of Dr. Tobias Isenberg
01/2014 - 10/2015 Otto-von-Guericke-University: Research assistant in the group of Prof. Preim
01/2012 - 12/2013 Dissertation fellowship from Sachsen-Anhalt in the group of Prof. Preim
10/2011 - 12/2013 Otto-von-Guericke-University: Student assistant in the group of Prof. Preim
02/2011 - 12/2011 Visage Imaging (Amira): Student assistant
06/2007 - 01/2011 FU - Berlin: Student assistant in the geometry processing group of Prof. Polthier