Institut für Informationsverarbeitung (TNT)

Ralf Dragon studied Electrical Engineering with a focus on information processing at the Leibniz Universität Hannover, starting in 2001. In 2005, he wrote his study thesis 'Appearance-Based Facial Motion Analysis for Model-Based Coding' during a stay in Sweden at the Institutionen för Systemteknik, University of Linköping. His diploma thesis 'Kamerakalibrierung mit beweglichen Kalibriermustern' ('Camera Calibration with Movable Calibration Patterns') at the Institut für Informationsverarbeitung dealt with a new method of lens undistortion. It got the VDE study award 2006 of the VDE Hannover. Ralf Dragon received his Dipl.-Ing. degree with distinction in 2006. Since 2007 he has been working towards a PhD degree at the Institut für Informationsverarbeitung.

Research interests

Feature-based surveillance in project ASEV
Meta-features like NF features to describe non-textured regions.
Optical analysis of micro structures on mechanical components (data storage, fingerprinting)

News

In October 2012, I will be starting at the computer vision laboratory at the ETH Zurich in the group of Prof. Luc Van Gool.

Publications

Show selected publications only

Ralf Dragon, Bodo Rosenhahn, Jörn Ostermann
Multi-Scale Clustering of Frame-to-Frame Correspondences for Motion Segmentation
12th European Conference on Computer Vision (ECCV 2012), Florence, October 2012
(pdfDOI) BibTeX (paper page)
Michele Fenzi, Ralf Dragon, Laura Leal-Taixé, Bodo Rosenhahn, Jörn Ostermann
3D Object Recognition and Pose Estimation for Multiple Objects using Multi-Prioritized RANSAC and Model Updating
Annual Symposium of the German Association for Pattern Recognition (DAGM), accepted as oral presentation , Graz, Austria, August 2012
(pdfDOI) BibTeX
Ralf Dragon, Michele Fenzi, Wolf Siberski, Bodo Rosenhahn, Jörn Ostermann
Towards Feature-Based Situation Assessment for Airport Apron Video Surveillance
Theoretic Foundations of Computer Vision: Outdoor and Large-Scale Real-World Scene Analysis, April 2012
(pdfDOI) BibTeX
Muhammad Shoaib, Ralf Dragon, Jörn Ostermann
Context-aware visual analysis of elderly activity in cluttered home
EURASIP Journal on Advances in Signal Processing, springer, Vol. 2011, December 2011
BibTeX
Oliver Müller, Sabine Donner, Tobias Klinder, Ralf Dragon, Ivonne Bartsch, Frank Witte, Alexander Krüger, Alexander Heisterkamp, Bodo Rosenhahn
Model Based 3D Segmentation and OCT Image Undistortion of Percutaneous Implants
Medical Image Computing and Computer-Assisted Intervention – MICCAI 2011 14th International Conference, Lecture Notes in Computer Science (LNCS), Springer Berlin / Heidelberg, Vol. 6893, pp. 454-462, September 2011, edited by Fichtinger, Gabor and Martel, Anne and Peters, Terry
(DOI) BibTeX
Ralf Dragon, Tobias Mörke, Bodo Rosenhahn, Jörn Ostermann
Fingerprints for Machines - Optical Identification of Grinding Imprints
33rd DAGM Symposium, August 2011
(pdf) BibTeX
Ralf Dragon, Carsten Dolar, Jörn Ostermann, Matthias Rieger, Holger Blume, Fabian Abel, Philipp Kärger
Intelligente Videoüberwachung
UniMagazin, Vol. 3, pp. 34-37, December 2010
(pdf) BibTeX
Muhammad Shoaib, Ralf Dragon, Jörn Ostermann
View-invariant Fall Detection for Elderly in Real Home Environment
The Fourth Pacific-Rim Symposium on Image and Video Technology (PSIVT2010), IEEE, November 2010
BibTeX
Ralf Dragon, Muhammad Shoaib, Bodo Rosenhahn, Jörn Ostermann
NF-Features - No-Feature-Features for Representing non-Textured Regions
11th European Conference on Computer Vision (ECCV 2010), Heraklion, Greece, September 2010
(pdf) BibTeX (paper page)
Ralf Dragon, Jörn Ostermann, Berend Denkena, Bernd Breidenstein, Tobias Mörke
Data Storage in Gentelligent Components: A New Way for Self-Authentication
2nd workshop "Self-X in Engineering", KI 2010, Karlsruhe, Germany, September 2010
(pdf) BibTeX
M. Shoaib, T. Elbrandt, R. Dragon, J. Ostermann
Altcare: Safe Living For Elderly People
4th International ICST Conference on Pervasive Computing Technologies for Healthcare 2010, IEEE, March 2010
BibTeX
Ralf Dragon, Christian Becker, Bodo Rosenhahn, Jörn Ostermann
Reading from Scratch -- A Vision-System for Reading Data on Micro-Structured Surfaces
31. DAGM Symposium, Lecture Notes in Computer Science, Springer, Vol. 5748, pp. 402--411, Jena, Germany, September 2009, edited by Joachim Denzler and Gunther Notni and Herbert Süße
(pdf) BibTeX
Berend Denkena, Isabel Steinbrenner, Jörn Ostermann, Ralf Dragon
Machining Microstructures by means of a High-Dynamic Fast-Tool-Servo
Proceedings of the 9th international conference of the european society for precision engineering and nanotechnology, Vol. 2, pp. 451-454, June 2009
BibTeX
M. Shoaib, R. Dragon, J. Ostermann
Shadow Detection for Moving Humans Using Gradient-Based Background Subtraction
ICASSP International Conference on Acoustics, Speech and Signal Processing, Taipei, Taiwan, April 2009
BibTeX
R. Dragon, I. Steinbrenner, J. Ostermann, B. Denkena
Digitale Dateinstrukturen auf gentelligenten Bauteilen
Zweiter Workshop optische Technologien – HOT, Hannover, November 2008
BibTeX
M. Shoaib, R. Dragon, J. Ostermann
Improving Object Detection by Contour-Based Shadow Removal
Zweiter Workshop optische Technologien – HOT, Hannover, November 2008
BibTeX
R. Dragon
Optical Readout of Information on Micro-Structured Surfaces
Technical Report, October 2008
BibTeX
Ralf Dragon, Isabel Steinbrenner, Jörn Ostermann, Berend Denkena
Inherent Mechanical Data Storage on Micro-Structured Surfaces
4th. IPROMS Virtual International Conference 2008, July 2008
(pdf) BibTeX
Berend Denkena, David Boehnke, Christian Spille, Ralf Dragon
In-Process Information Storage on Surfaces by Turning Operation
CIRP Annals - Manufacturing Technology, Elsevier, Vol. 57, No. 1, pp. 85-88, May 2008
(DOI) BibTeX
Ralf Dragon, Jörn Ostermann
Ein optisches Ausleseverfahren für bauteilinhärent gespeicherte Informationen
Erster Workshop Optische Technologien – HOT, Hannover, November 2007
BibTeX
Tobias Elbrandt, Ralf Dragon, Jörn Ostermann
Non-iterative Camera Calibration Procedure Using A Virtual Camera
Vision, Modeling, and Visualisation, Max-Planck-Institut für Informatik, pp. 143-150, Saarbrücken, Germany, November 2007
(pdf) BibTeX
Berend Denkena, Jörn Ostermann, Christian Becker, Ralf Dragon, Christian Spille
Struktureinbringung und Ausleseverfahren zur Informationsspeicherung
Erstes SFB 653 Kolloquium, April 2007
BibTeX
Stefan Breuer, Sven Bergmann, Ralf Dragon, Sebastian Möller
Set-up of a Unit-Selection Synthesis with a Prominent Voice
Fifth international conference on Language Resources and Evaluation, Genoa, Italy, May 2006
(PDF) BibTeX