Welcome to the Visualization Group at the University of Magdeburg



The group was established in March 2003 and is headed by Prof. Dr. Bernhard Preim.
The visualization group plays an active role in the bachelor and master programs of computational visualistics and regularly offers lectures on Visualization, Human-Computer Interaction, Medical Visualization and Computer-Supported Diagnosis and Treatment. Our research is focussed on visualization and interaction techniques for medical education, diagnosis and therapy planning.



Cooperation Partners:

                                                                                   



News

20/05/2015: IEEE VIS-Tutorial “Rejuvenated Medical Visualization – Large-scale, whole-body visualization, visualizing physiology, non-standard imaging and simulations, and cohort studies” Accepted
We were notified and are delighted that our tutorial submission (lead by Steffen Oeltze-Jafra) for a half-day tutorial at this year's IEEE Visualization conference was accepted. Speakers are Anders Ynnerman, Stefan Bruckner and Helwig Hauser.

13/05/2015:
The book ” Interaktive Systeme Band 2: User Interface Engineering, 3D-Interaktion, Natural User Interfaces” authored by Bernhard Preim and Raimund Dachselt” appeared at Springer.




31/03/2015:
Juliane Dinse, external Phd student of the Vis group has submitted her Phd thesis entitled “A Model-based Cortical Parcellation Scheme for High-Resolution 7 Tesla MRI Data”. Juliane is a staff member of Max-Planck Institute for Human Cognitive and Brain Sciences in Leipzig. She works in the Neurobiology department. In her work, Juliane dealt with histological slices and ultra high resolution MRI data to come up with a method to model laminar myelin patterns in the human cortex based on the known cytoarchictecture. She was locally supervised by Robert Turner and Pierre-Louis Bezan.

19/03/2015:

Benjamin Köhler received the price for the best talk (among 46) at this year's German workshop on medical image processing for presenting the paper “Two-Dimensional Plot Visualization of Aortic Vortex Flow in Cardiac 4D PC-MRI Data”. This is joint work with Monique Meuschke from our group and physicians from three hospitals (M. Gutberlet, M. Grothof, Heart Center Leipzig), (K. Fischbach, University Hospital Magdeburg) and U. Preim (Hospital Magdeburg, Olvenstedt). The award is handed over to Ben by Prof. Thomas Tolxdorff, Free University Berlin”.




02/03/2015: Extended Internship in Delft
Kai Lawonn started an extended internship at Delft University of Technology and is now a temporary member of Anna Vilanova's group. Kai continues the cooperation that we started during Anna's time in Eindhoven when Rocco Gasteiger joint her team and Roy van Pelt, in exchange came to Magdeburg.

22/02/2015: Dirk Bartz Price for Visual Computing in Medicine

We were notified that one of our submissions for the Dirk Bartz Price was selected to be awarded at this year's Eurographics conference in May. The succesful team is lead by Benjamin Köhler and includes physicians from the Heart Center Leipzig (Matthias Gutberlet, Matthias Grothoff), from the University Hospital Magdeburg (Katharina Fischbach) and the Klinikum Olvenstedt (Uta Preim). Together they delevoped and tested new methods to analyze and visualize cardiac blood flow to support the diagnosis of cardiac diseases.


09/02/2015: MICCAI-Tutorial “Highlights in Medical Visualization” Accepted
We were notified that our tutorial submission (lead by Anna Vilanova and Bernhard Preim) for a Full Day tutorial at this year's MICCAI conference was accepted. Speakers include Anders Ynnerman, Eduard Gröller, Stefan Bruckner and Timo Ropinski.

01/02/2015: New funding period for the research campus STIMULATE

A new 5-year period of funding for interventional radiology and related technical developments starts today in the framework of the research campus SIMULATE. Our group is involved in two subprojects: “image analysis and visualization” (for planning interventions) where we take the lead as well as hemodynamics/tools, where stents and related devices are developed for improving treatment of vascular diseases.

31/01/2015: Full-Day tutorial “Highlights in Medical Visualization” at MICCAI
We initiated a tutorial submission together with Anna Vilanova, TU Delft for a full day tutorial including a panel discussion at MICCAI. Tutorial speakers include Stefan Bruckner (Bergen), Katja Bühler (Vienna), Eduard Gröller (Vienna), Markus Hadwiger (KAUST), Bernhard Kainz (London) Thomas Schultz (Bonn), Rüdiger Westermann (Munich), Anders Ynnerman (Linköping).

19/01/2015: We present new surveys!










We submitted two surveys to the electronic archive arXiv. The first survey Feature Lines for Illustrating Medical Surface Models: Mathematical Background and Survey written by Kai Lawonn and Bernhard Preim is about feature lines. Here, several feature line methods are presented and analyzed. Furthermore, this survey provides also the discrete differential geometry background, which is necessary for understanding the feature line concepts.

The second survey by Bernhard Preim et al. was a joint work with the visualization group of Bergen headed by Helwig Hauser, the image processing group headed by Klaus Tönnies, and Henry Völzke the head of the study of health in Pomerania. The survey Visual Analytics of Image-Centric Cohort Studies in Epidemiology discusses cohort studies and how they can be evaluated with visual analytics.

18/12/2014: TVCG article on clustering blood flow receives attention at NeuroNews!

We are proud that our article "Blood Flow Clustering and Applications in Virtual Stenting of Intracranial Aneurysms", which appeared this year in IEEE Transactions on Visualization and Computer Graphics and was authored by Steffen Oeltze, Dirk J. Lehmann, Alexander Kuhn, Gabor Janiga, Holger Theisel, and Bernhard Preim, has been recognized by NeuroNews. The accompanying video of our article was embedded in their web page.



28/11/2014:

Kai Lawonn was selected as best Phd student of the university (joint first price with a student from mechanical engineering). The award ceremony took place at Johannes church.”





06/11/2014: Invited talk
Kai Lawonn gives an invited talk at MPI in Saarbrücken about illustrative visualization.



01/10/2014: Release of the Dornheim Segmenter
After many years of development the Dornheim Segmenter (http://www.segmenter.de/) is now released as a product by our Spin-Off Company Dornheim Medical Images. It is based on research in our group primarily in computer-assisted ENT surgery. Former members of the group, such as Jana Dornheim, Kerstin Kellermann and Tobias Mönch contributed a lot.

01/10/2014: Best Phd Thesis Award

The Phd thesis of Kai Lawonn was selected the best Phd thesis of the Faculty in the academic year (1. 10. 2013 - 30. 9. 2014).








22/09/2014: Outstanding Phd Thesis Defended


Kai Lawonn has successfully defended his Phd thesis on “Illustrative Visualization of Medical Datasets” September, 15. Kai made a number of contributions related to feature lines applied to medical surface meshes. A systematic comparison of existing techniques, the development of new techniques, bridging between feature lines and hatchings, new applications in virtual endoscopy and molecular dynamics. Also for visualizing vascular surfaces along with internal blood flow Kai could strongly improve over existing methods. All this was accomplished in only 2.5 years. The Phd committee rated his performance as “Summa cum laude”.




20/08/2014: We will present four papers at this year's VCBM!

We are happy to announce that we will present four papers at this year's Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM) in Vienna, Austria.











A Comparative User Study of a 2D and an Autostereoscopic 3D Display for a Tympanoplastic Surgery” Alexandra Baer, Antje Huebler, Patrick Saalfeld, Douglas Cunningham, Bernhard Preim.

Robust Cardiac Function Assessment in 4D PC-MRI Data” Benjamin Köhler, Uta Preim, Matthias Gutberlet, Katharina Fischbach, Bernhard Preim.

Survey of Labeling Techniques in Medical Visualizations” Steffen Oeltze-Jafra, Bernhard Preim.

Interactive Labeling of Toponome Data” Steffen Oeltze-Jafra, Franz Pieper, Reyk Hillert, Bernhard Preim, Walter Schubert.

We are looking forward to it!



24/07/2014: We present four papers at the IEEE VIS this year!

We are happy to announce that we will present four papers at this years IEEE VIS.

Combined Visualization of Wall Thickness and Wall Shear Stress for the Evaluation of Aneurysms” Sylvia Glaßer, Kai Lawonn, Thomas Hoffmann, Martin Skalej, Bernhard Preim.



Interactive Visual Analysis of Image-Centric Cohort Study Data” Paul Klemm, Steffen Oeltze-Jafra, Kai Lawonn, Katrin Hegenscheid, Henry Völzke, Bernhard Preim

Blood Flow Clustering and Applications in Virtual Stenting of Intracranial Aneurysms” Steffen Oeltze, Dirk J. Lehmann, Alexander Kuhn, Gabor Janiga, Holger Theisel, Bernhard Preim.

ADR - Anatomy-Driven Reformation” Jan Kretschmer, Grzegorz Soza, Christian Tietjen, Michael Suehling, Bernhard Preim, Marc Stamminger

We look forward to it!



04/07/2014: Phd Thesis defended

Sylvia Glaßer, Phd student of the visualization group, successfully defended her thesis “Visual Analysis, Clustering, and Classification of Contrast-Enhanced Tumor Perfusion MRI Data”.







27/06/2014: Phd Thesis defended

Tobias Mönch, Phd student of the visualization group, successfully defended his thesis “Context-Aware 3D Model Generation for Biomedical Applications”.







25/06/2014: Phd Thesis defended

Mathias Neugebauer, Phd student of the visualization group, successfully defended his thesis “Computer-Aided Exploration of Blood Flow in Cerebral Aneurysms – Geometrical Processing and Interactive Visualization”.



12/06/2014: Honorable Mention

Our joint work with SIEMENS Healthcare and the University of Erlangen was awarded with the only Honorable Mention award in the EuroVis Short Paper Section, making it the 2nd best Short Paper. The paper deals with an improved multivessel reformation technique based on a bilateral filter applied to depth information that effectively avoids small and disturbing discontinuities while preserving large information-carrying discontinuities. Bernhard Preim gets the award from one of the Short Paper Chairs in Swansea.

12/06/2014: New Phd Student

We are happy that Patrick Saalfeld got a grant for a Phd program from our local government to do research on 3D interaction related to treatment planning problems, such as implant placement and applicator positioning.






Press

15/03/2013: 10 Jahre AG Visualisierung


































09/18/2010: “Karl-Heinz-Höhne MedVis-Award”

“Nachwuchswissenschaftler für ihre Arbeit geehrt - Computerunterstützung für die klinische Anwendung”

Die Fachgruppe “Visual Computing in der Medizin” der Gesellschaft für Informatik vergibt am 18. November 2010 zum vierten Mal den Karl-Heinz-Höhne MedVis-Award, für den das Münchener Medizintechnikunternehmen BrainLAB AG das Preisgeld stiftete.

Ausgezeichnet wurden Nachwuchswissenschaftler, die mit ihren Arbeiten einen wichtigen Beitrag für die Nutzung bildgebender Verfahren in der Diagnostik und Therapie geleistet haben. Eine Jury aus 15 Experten, geleitet von Bernhard Preim (Universität Magdeburg) und Stefan Zachow (Zuse-Institut Berlin) hat die 18 eingereichten Arbeiten sorgfältig bewertet und verglichen.

Mit dem 1. Preis wird Christian Dick, Technische Universität München geehrt. Ihm ist es gelungen, biomechanische Simulationen mit der interaktiven Darstellung von CT-Daten zu kombinieren, um damit orthopädische Operationen, speziell an der Hüfte besser planen zu können. Seine Simulationsmethode nutzt dabei die programmierbare Grafikhardware und ist dadurch um Größenordnungen schneller als bisherige Verfahren - so dass die Simulationen erstmals direkt im Rahmen einer interaktiven Planung eingesetzt werden können.

Mit dem 2. Preis wurde Christian Rieder, Fraunhofer MEVIS Bremen, geehrt. Seine Arbeit dient vor allem der Planung von Tumoroperationen im Gehirn und an der Leber. Er kombiniert dabei verschiedene Darstellungstechniken geschickt und ermöglicht so, die Integration aller relevanten Informationen in aussagekräftigen 3D-Visualisierungen. So sehen die Mediziner z.B. besser, wie sie eine Applikatornadel platzieren können, die den Tumor durch Wärmewirkung bei Anwendung der Radiofrequenztherapie zerstören soll.

Aufgrund der besonders hohen Qualität der eingereichten Beiträge wurden zwei 3. Preise vergeben.

Dagmar Kainmüller vom Zuse-Institut Berlin wird für ihre Arbeit zur automatischen Segmentierung von anatomischen Strukturen ausgezeichnet. Vereinfacht gesagt, gelingt es ihr durch eine komplizierte mathematische Modellierung von anatomischen Formen und Bildinformationen, eine Struktur, z.B. ein Organ in einem Datensatz automatisch korrekt abzugrenzen. Solche Segmentierungsmethoden sind meist die Voraussetzung für die Generierung aussagekräftiger Visualisierungen der 3D-Anatomie.

Konrad Mühler, Universität Magdeburg, hat eine Vielzahl von Algorithmen, z.B. zur automatischen Beschriftung von medizinischen 3D-Modellen entwickelt und in eine frei verfügbare Software-bibliothek zur Implementierung medizinischer Visualisierungskomponenten integriert. Andere Entwickler müssen somit “das Rad nicht immer wieder neu erfinden.” Die Preisverleihung findet auf der Jahrestagung der “Deutschen Gesellschaft für Computer- und Roboterassistierte Chirurgie” (CURAC) in Düsseldorf statt.”