Fields of research

• Preprocessing of microscopic volumetric data.


Development of methods for the correction and reconstruction of microscopic volumetric data.



• 3D volumetric Filtering and Invariant Feature Design.


Development of methods for 3D object detection and pattern classification



• Complex models for the description of biological structures.


Development of models for the robust description of complex biological patterns and anatomical structures.



• Medical image retrieval.


Development of content-based image retrieval for 3D volumetric of CT liver.



• Fundamental problems in Computer Vision and Pattern Recognition.


We are working on the solution of a classic auto-calibration problem from multiple view geometry and on the development of suitable systems of basis functions for 2D and 3D objects under general motion.

Funded projects

• DFG: BIOSS - 3D and 4D Image Analysis for the 4D-Analyser


Universal Image Analysis for the 4D-Analyser of the Centre for Biological Signalling Studies (bioss).
Funded by the Excellence Initiative of the German Federal and State Governments (EXC 294).



• BMBF: Quantitative 3D and 4D cell analysis in living organisms - novel instrumentation, computational tools, proof of concept applications


• Development of image analysis tools for the localization and quantification of compounds (proteins, hormones, nutrients, ...) involved in the development of organisms of different complexities.
  Funded by the Bundesministerium für Bildung und Forschung (4-D Cell Analysis - SYSTEC)



• BMBF: SysBra -- Systems biology of Brassicaceae cells


Image Analysis tools for description of cellular and subcellular patterns in 4D data sets of growing brassicaceae cells.

Former fields of research

• Design of Classifiers.


Development and enhancement of efficient classifiers. Our primary research focus concentrates on Support Vector Machines (SVM).



• Motion and depth estimation based on stereo and multiple camera views as well as image sequences.


Motion and depth estimation for dealing with stereo- and multi camera view records of image sequences in computer vision.



• Digital image filtering and restoration algorithms.


Non-linear and multi sensor algorithms in the field of image filtering and restoration.



• Multi-spectral image analysis of processes in chemical engineering.


Monitoring and control of combustion processes and flow structures of circulating fluidized beds.



• Development of fast and parallel algorithms.


Development of fast and parallel algorithms and multi-process structures in image processing and pattern recognition.

Completed projects

• Invariance in Kernel Methods


• Handwriting recognition


• SIMBA (Search IMages By Appearance)


• I-Search Project

Joint research project for search in large image collections.



• OMIB


Online-monitoring and identification of bio-aerosols(BMBF-Verbund-Projekt im Rahmen des Forschungsverbandes Biophotonik)



• OMNIBUSS


Online-Monitoring Nicht toxischer, Inhalativallergener Bioaerosole und Sonstiger Staubkomponenten


• Pollen recognition


"Automatic Identification and Counting of Airborne Pollen Grains", joint research project between the German Weather Service (DWD), the MeteoSwiss (Project NAPOL II) and the Institute for Computer Science of the University of Freiburg



• Noblesse


Nonlinear Model-Based Analysis and Description of Images for Multimedia Applications, EU long term research project including 7 European universities (project coordination TU Hamburg-Harburg)



• Movis
MObile Visual-Interpretative System for blind and visually handicapped persons.(BMBF-joint project within the research program "Electronic eye")



• SFB 238


Process measure techniques and dynamic model development for multiphase systems, Application of digital image processing for local structure analysis in circulating fluidized beds(part project C8)



• DFG Project


Mapping of digital image processing and pattern recognition algorithms to large parallel hardware architectures.



• DFG-Schwerpunktprojekt


Automatic visual examination of technical objects.
Research subject: Methods of invariant pattern recognition and visual examination of gray value images.