| Dr.-Ing. | ||
Alexander Behrens |
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| Research Scientist | ||
| Institute of Imaging & Computer Vision RWTH Aachen Sommerfeldstrasse 24 52074 Aachen Germany |
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| Room: | ||
| Tel: | +49 (241) 80 27860 | |
| Fax: | +49 (241) 80 22200 | |
| Email: | lfb@lfb.rwth-aachen.de | |
Biography
Alexander Behrens was born in 1980. He studied Electrical Engineering with a focus on Information Processing at the University of Hanover. His Studienarbeit (first student research project) was dealing with ‘Implementation of a Gesture Recognition System based on Multi-scale Feature Detection and Particle Filtering’ and received the VDE Hanover student award for the best student research project in electrical engineering in 2004. He was doing an internship at Mitsubishi Electric Research Laboratories in Cambridge, MA, USA and was participating in a 3DTV multiview coding project. His diploma thesis was dealing with ‘Optimization of an Image Processing Module for Moving Object Segmentation’. He received an honoring for his Dipl.-Ing. degree in 2006.
After his graduation he worked as a research scientist at the ‘Institut für Informationverarbeitung’ at the University of Hanover in the field of image processing and interpretation of remote sensoring image data.
Since then he has been working as a research scientist toward a PhD degree at the ‘Institute of Imaging & Computer Vision’ at the RWTH Aachen University. His research interests are in medical and industrial image processing, signal processing, pattern recognition, and computer vision.
Book Publications
2013
Alexander Behrens
Verfahren zur Visualisierung und Navigation in der Fluoreszenzendoskopie
In: Schriftenreihe des Lehrstuhls für Bildverarbeitung, RWTH Aachen University
Verfahren zur Visualisierung und Navigation in der Fluoreszenzendoskopie
In: Schriftenreihe des Lehrstuhls für Bildverarbeitung, RWTH Aachen University
Journal Publications
2011
Sebastian Gross, Christian Trautwein, Alexander Behrens, Ron Winograd, Stefan Palm, Holger Lutz, Ramin Schirin-Sokhan, Hartmut Hecker, Til Aach, Jens J. W. Tischendorf
Computer-Based Classification of Small Colorectal Polyps Using Narrow-Band Imaging with Optical Magnification
In: Gastrointestinal Endoscopy XX (YY)
Computer-Based Classification of Small Colorectal Polyps Using Narrow-Band Imaging with Optical Magnification
In: Gastrointestinal Endoscopy XX (YY)
2011
Alexander Behrens, Til Aach
MATLAB meets LEGO Mindstorms
In: Praxiseinblicke Forschendes Lernen in den Ingenieurwissenschaften, TeachING-LearnING.EU
MATLAB meets LEGO Mindstorms
In: Praxiseinblicke Forschendes Lernen in den Ingenieurwissenschaften, TeachING-LearnING.EU
2011
Behrens, Alexander, Guski, Martin, Stehle, Thomas, Gross, Sebastian, Aach, Til
A non-linear multi-scale blending algorithm for fluorescence bladder images
In: Computer Science - Research and Development 26
A non-linear multi-scale blending algorithm for fluorescence bladder images
In: Computer Science - Research and Development 26
2011
Behrens, Alexander, Bommes, Michael, Stehle, Thomas, Gross, Sebastian, Leonhardt, Steffen, Aach, Til
Real-time image composition of bladder mosaics in fluorescence endoscopy
In: Computer Science - Research and Development 26
Real-time image composition of bladder mosaics in fluorescence endoscopy
In: Computer Science - Research and Development 26
2010
Tischendorf, Jens J., Gross, Sebastian, Winograd, Ron, Hecker, Hartmut, Auer, Roland, Behrens, Alexander, Trautwein, Christian, Aach, Til, Stehle, Thomas
Computer-Aided Classification of Colorectal Polyps Based on Vascular Patterns: A Pilot Study
In: Endoscopy 42 (3)
Computer-Aided Classification of Colorectal Polyps Based on Vascular Patterns: A Pilot Study
In: Endoscopy 42 (3)
Conference Publications
2012
Gross, Sebastian, Klein, Monika, Behrens, Alexander, Aach,Til
Segmentierung von Blutgefäßen in retinalen Fundusbildern
In: Bildverarbeitung für die Medizin (BVM)
Segmentierung von Blutgefäßen in retinalen Fundusbildern
In: Bildverarbeitung für die Medizin (BVM)
2011
Gross, Sebastian, Palm, Stephan, Behrens, Alexander, Tischendorf, Jens J. W., Trautwein, Christian, Aach, Til
Segmentierung von Blutgefässstrukturen in koloskopischen NBI-Bilddaten
In: Bildverarbeitung für die Medizin (BVM)
Segmentierung von Blutgefässstrukturen in koloskopischen NBI-Bilddaten
In: Bildverarbeitung für die Medizin (BVM)
2011
Alexander Behrens, Dorian Schneider, Til Aach
MATLAB meets LEGO Mindstorms - A First-Year Student Project for Practicing Engineering
In: TeachING-LearnING.EU Fachtagung - "Next Generation Engineering Education"
MATLAB meets LEGO Mindstorms - A First-Year Student Project for Practicing Engineering
In: TeachING-LearnING.EU Fachtagung - "Next Generation Engineering Education"
2011
Alexander Behrens, Linus Atorf, Dorian Schneider, Til Aach
Key Factors for Freshmen Education Using MATLAB and LEGO Mindstorms
In: Int. Conf. on Intelligent Robotics and Applications (ICIRA)
Key Factors for Freshmen Education Using MATLAB and LEGO Mindstorms
In: Int. Conf. on Intelligent Robotics and Applications (ICIRA)
2010
Thomas Stehle, Jonas Wulff, Alexander Behrens, Sebastian Gross, Til Aach
Modellbasierte Echtzeit-Bewegungsschätzung in der Fluoreszenzendoskopie
In: Bildverarbeitung für die Medizin (BVM)
Modellbasierte Echtzeit-Bewegungsschätzung in der Fluoreszenzendoskopie
In: Bildverarbeitung für die Medizin (BVM)
2009
Gross, Sebastian, Behrens, Alexander, Stehle, Thomas
Rapid Development of Video Processing Algorithms with RealTimeFrame
In: Biomedica
Rapid Development of Video Processing Algorithms with RealTimeFrame
In: Biomedica
2009
Behrens, A., Stehle, T., Gross, S. and Aach, T.
Local and global panoramic imaging for fluorescence bladder endoscopy
In: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Local and global panoramic imaging for fluorescence bladder endoscopy
In: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
2008
Alexander Behrens, Linus Atorf, Robert Schwann, Johannes Ballé, Thomas Herold, Aulis Telle
Practicing Engineering in a First-Year Student Project: MATLAB meets LEGO Mindstorms
Practicing Engineering in a First-Year Student Project: MATLAB meets LEGO Mindstorms
2008
Alexander Behrens
An Image Mosaicing Algorithm for Bladder Fluorescence Endoscopy
In: Proceedings of the 12th International Student Conference on Electrical Engineering POSTER 2008
An Image Mosaicing Algorithm for Bladder Fluorescence Endoscopy
In: Proceedings of the 12th International Student Conference on Electrical Engineering POSTER 2008
2007
Sebastian Gross, Thomas Stehle, Alexander Behrens, Til Aach
RealTimeFrame - a Real Time Image Processing Solution for Medical Environments
In: DGBMT-Jahrestagung Biomedizinische Technik (BMT)
RealTimeFrame - a Real Time Image Processing Solution for Medical Environments
In: DGBMT-Jahrestagung Biomedizinische Technik (BMT)
Teaching
Diploma, master, student research projects, bachelor theses:
- Diploma thesis Martin Ahrens:
Real-time capable 3D visualization for cystoscopy for intraoperative navigation support - Diploma thesis Masato Takami:
Development and implementation of a method for completeness checking of endoscopic image compositions - Diploma thesis Jonathan Grimm:
Development and analysis of a navigation system for three-dimensional orientation and position determination of cystoscopes using inertial sensor technology - Diploma thesis Peter Faltin:
3D reconstruction from uncalibrated freehand endoscopic image sequences - Master thesis Bartosz Neuman:
Comparison and optimization of feature detectors in fluorescence endoscopy of the bladder - Bachelor thesis Iris Heisterklaus:
Development of a method for the analysis and visualization of image distortions in panoramic images of the urinary bladder - Student research project Christoph Klas
Position determination of live endoscope images in overview images by means of image registration - Student research project Hendrik Röllinger:
Analysis and evaluation of the location distribution of feature points for fast panoramic image generation - Student research project Yannick Müller:
Development of a software for projecting cystoscopy images onto three-dimensional urinary bladder models - Student research project Kristin Kuipers:
Development and analysis of a navigation system for three-dimensional orientation and position determination of endoscopes using inertial sensors - Student research project Martin Guski:
Development of an intensity-adaptive blending method for photodynamic diagnosis - Student research project Felix Buse:
Development of a video image-monitored sorting machine for the classification of LEGO bricks - Student research project Raoul Bück:
Development and implementation of a MATLAB-controlled sorting robot
Exercises, internships, projects:
- Practical course in digital image processing (2007-2011)
- 3D reconstruction with structured light
- MATLAB meeting point (2007-2011)
- Project manager and supervisor of the first semester project in electrical engineering and information technology (2007-2011)
- Supervisor of the LEGO Mindstorms student workshop (2007-2011)
- LEGO Mindstorms Workshop
- Developer and supervisor of the open source project:
Research projects
Medical image processing:
- Image registration of endoscopic video sequences
- Visualization methods for the representation of hollow organs
- Virtual endoscopy
Navigation systems:
- Image-based navigation solutions for endoscopic examination
- Low-cost navigation systems for cystoscopy