Welcome to the homepage of Jörg Dahmen. I am doing my PhD
at the Lab VI for Computer Science at RWTH Aachen - University of Technology, Germany.
The main research topics of the lab are:

My personal research interests include:


See the list of my publications below (as well as a list of related master theses and given lectures at the bottom of the page).

If you are interested in the RWTH Aachen - University of Technology IRMA Project ( Image Retrieval in Medical Applications),
you should also have a look at the IRMA homepage (in German).

List of Publications Click to download or view

Publications 2001:

  • J. Dahmen, D. Keysers, H. Ney:
    "Combined Classification of Handwritten Digits using the `Virtual Test Sample Method'", to appear in
    2nd International Workshop on Multiple Classifier Systems - MCS 2001, Cambridge, UK, July 2001.

  • J. Dahmen, D. Keysers, H. Ney, M. Güld:
    "Statistical Image Object Recognition using Mixture Densities",
    Journal of Mathematical Imaging and Vision - Special Issue MIA 2000, Kluwer Academic Publishers, Vol. 14, No. 3, pp. 285-296, May 2001.

  •  J. Dahmen, D. Keysers, M. Motter, H. Ney, T. Lehmann, B. Wein,
    "An Automatic Approach to Invariant Radiograph Classification",
    Bildverarbeitung für die Medizin 2001, pp. 337-341, Lübeck, Germany, March 2001.    PostScript downloaden (corrected version)

  •  D. Keysers, J. Dahmen, H. Ney,
    "Invariant Classification of Red Blood Cells",
    Bildverarbeitung für die Medizin 2001, pp. 367-371, Lübeck, Germany, March 2001.    PostScript downloaden

  •  M. Kohnen, H. Schubert, B. Wein, R. Günther, J. Bredno, T. Lehmann, J. Dahmen,
    "Qualität von DICOM-Informationen in Bilddaten aus der klinischen Routine",
    Bildverarbeitung für die Medizin 2001, pp. 419-423, Lübeck, Germany, March 2001.PostScript downloaden


Publications 2000:

  • J. Dahmen, D. Keysers, H. Ney, M. Güld:
    "Statistical Image Object Recognition using Mixture Densities", invited talk at
    Mathematics and Image Analysis 2000, Paris, France, September 2000, Proceedings to appear in
    Journal of Mathematical Imaging and Vision, Kluwer Academic Publishers (2001).

  • J. Dahmen, D. Keysers, M. Güld, H. Ney:
    "Invariant Image Object Recognition using Mixture Densities",    PostScript downloaden
    15th International Conference on Pattern Recognition, Vol.2, pp. 614-617, Barcelona, Spain, September 2000.

  • J. Dahmen, D. Keysers, Michael Pitz, H. Ney:
    "Structured Covariance Matrices for Image Object Recognition",    PostScript downloaden
    22. DAGM Symposium Mustererkennung, pp. 99-106, Kiel, Germany, September 2000.

  • D. Keysers, J. Dahmen, T. Theiner, H. Ney:
    "Experiments with an Extended Tangent Distance",
    15th International Conference on Pattern Recognition, Vol. 2, pp. 38-42, Barcelona, Spain, September 2000.PostScript downloaden

  • D. Keysers, J. Dahmen, H. Ney:
    "A Probabilistic View on Tangent Distance",    PostScript downloaden
    22. DAGM Symposium Mustererkennung, pp. 107-114, Kiel, Germany, September 2000.

  • J. Dahmen, K. Beulen, M. Güld, H. Ney:
    "A Mixture Density Based Approach to Object Recognition for Image Retrieval",
    6th International RIAO Conference on Content-Based Multimedia Information Access,  pp. 1632-1647, Paris, France, April 2000.    PostScript downloaden

  • J. Dahmen, T. Theiner, D. Keysers, H. Ney, T. Lehmann, B. Wein:
    "Classification of Radiographs in the 'Image Retrieval in Medical Applications' System (IRMA)," PostScript downloaden
    6th International RIAO Conference on Content-Based Multimedia Information Access, pp. 551-566, Paris, France, April 2000.

  •   J. Dahmen, J. Hektor, R. Perrey, H. Ney:
    "Automatic Classification of Red Blood Cells using Gaussian Mixture Densities",
    Bildverarbeitung für die Medizin 2000, pp. 331-335, Munich, Germany, March 2000.     PostScript downloaden

  •  M. Schreckenberg, J. Dahmen, M. Güld, G. Schummers, D. Meyer-Ebrecht, H. Ney:
    "Automatische Endokarderkennung in 3D mit approximierenden Thin-Plate-Spline Modellen unter Einsatz von Gauß'schen Mischverteilungs-Modellen für die lokale Klassifikation",
    Bildverarbeitung für die Medizin 2000, pp. 351-355, Munich, Germany, March 2000.     PostScript downloaden

  • T. Lehmann, B. Wein, J. Dahmen, J. Bredno, F. Vogelsang, M. Kohnen:
    "Content-based Image Retrieval in Medical Applications: A Novel Multi-Step Approach",
    Procs. Int. Society for Optical Engineering (SPIE), Vol. 3972(32), pp. 312-320, Februar 2000.

  • J. Bredno, M. Kohnen, J. Dahmen, F. Vogelsang, B. Wein, T. Lehmann:
    "Synergetic Impact obtained by a Distributed Developing Platform for Image Retrieval in Medical Applications (IRMA)",
    Procs. Int. Society for Optical Engineering (SPIE), pp. 321-331, Vol. 3972(33), Februar 2000.

  • J. Bredno, S. Brandt, J. Dahmen, B. Wein, T. Lehmann
    "Kategorisierung von Röntgenbildern mit aktiven Konturmodellen",
    Bildverarbeitung für die Medizin 2000, pp. 356-360, Munich, Germany, March 2000.

  • M. Kohnen, F. Vogelsang, B. Wein, M. Kilbinger, R. Günther, F. Weiler, J. Bredno, J. Dahmen :
    "Kategorisierung von digitalen Röntgenbildern mit parametrisierbaren Formmodellen",
    Bildverarbeitung für die Medizin 2000, pp. 366-370, Munich, Germany, March 2000.

  • M. Kohnen, F. Vogelsang, B. Wein, M. Kilbinger, R. Günther, F. Weiler, J. Bredno, J. Dahmen :
    "Knowledge Based Automated Feature Extraction to Categorize Secondary Digitized Pictures",
    Procs. Int. Society for Optical Engineering (SPIE), Vol. 3979-70, pp. 709-717, Februar 2000.

  • T. Lehmann, B. Wein, J. Dahmen, J. Bredno, F. Vogelsang, M. Kohnen:
    "Ein strukturiertes Konzept zum inhaltsbasierten Zugriff auf medizinische Bildarchive",
    Bildverarbeitung für die Medizin 2000, pp. 218-222, Munich, Germany, March 2000.


Publications 1999:

  •   J. Dahmen, R. Schlüter, H. Ney:
    "Discriminative Training of Gaussian Mixtures for Image Object Recognition",
    21. DAGM Symposium Mustererkennung, in: W. Förstner, J. Buhmann, A. Faber, P. Faber (eds.), pp. 205-212, Bonn, Germany, September 1999. PostScript downloaden

  • J. Bredno, F. Vogelsang, J. Dahmen, T. Lehmann, M. Kilbinger, B. Wein, R.W. Günther, H. Ney, K. Spitzer:
    "Eine Entwicklungsumgebung für die interdisziplinäre Zusammenarbeit bei der Entwicklung des Image-Retrieval-Systems IRMA",
    Bildverarbeitung für die Medizin, pp. 362-366, Heidelberg, Germany, March 1999.


Publications 1998:

  • J. Dahmen, K. Beulen, H. Ney:
    "Objektklassifikation mit Mischverteilungen", in: P. Levi, R.-J. Ahlers, F. May, M. Schanz (eds.):
    20. DAGM Symposium Mustererkennung 1998, pp.167-174, Stuttgart, Germany, September 1998.     PostScript downloaden
     

  • J. Dahmen, T. Lehmann, K. Spitzer, H. Ney:
    "Image Retrieval für klinische Bilddatenbanken",
    Bildverarbeitung für die Medizin, pp. 442-446, Aachen, Germany, March 1998.

  • F. Vogelsang, F. Weiler, J. Dahmen, M. Kilbinger, B. Wein, R. Günther:
    "Detection and Compensation of Rib Structures in Chest Radiographs for Diagnose Assistance",
    Proc. of the the SPIE's International Symposium on Medical Imaging 1998, Vol. 3338-1, San Diego, pp. 774-785, 1998.


Publications 1997:
  • J. Dahmen, F. Weiler, F. Vogelsang, B. Wein, M. Kilbinger, R. Günther:
    "Rippenkantendetektion in Thoraxröntgenbildern zur Schattenkompensation und Bildananlyse", in: B. Arnolds, H. Müller, D. Saupe, T. Tolxdorff (eds.),
    Digitale Bildverarbeitung in der Medizin 1997, pp. 111-116, Freiburg, Germany, March 1997.


Related Diploma Theses (coached by me, in gzipped postscript-files):
  • Thomas Theiner:
    "Inhaltsbasierter Zugriff auf große Bilddatenbanken",     PostScript downloaden
    Diploma Thesis at the Chair of Computer Science VI (in German), February 2000.

  • Ralf Perrey:
    "Affin-Invariante Merkmale für die 2D-Bilderkennung",     PostScript downloaden
    Diploma Thesis at the Chair of Computer Science VI (in German), February 2000.

  • Daniel Keysers:
    "Approaches to Invariant Image Object Recognition",     PostScript downloaden
    Diploma Thesis at the Chair of Computer Science VI, June 2000.

  • Mark Oliver Güld:
    "Inhaltsbasierter Bildzugriff mittels Statistischer Objekterkennung",     PostScript downloaden
    Diploma Thesis at the Chair of Computer Science VI (in German), July 2000.


Miscellaneous:
  • J. Dahmen:
    "Statistical Approaches to Image Object Recognition",     PostScript downloaden
    Slides of a lecture held at the ATHENS Intensive Course on Computer Vision, RWTH Aachen, March 2000.

  • J. Dahmen:
    "Statistical Approaches to Image Object Recognition",     PostScript downloaden
    Slides of a lecture held at the ATHENS Intensive Course on Computer Vision, RWTH Aachen, March 2001.
    [These are updated slides which are (in parts) different from the Athens 2000 ones.]

  • Udo Sorges:
    "Kooperative Klassifikation",     PostScript downloaden
    Seminar thesis of the Seminar on Medical Image Processing that was coached by me, JH Hellenthal, January 1999 (in German).

  • Sami Celik:
    "Klassifikation mit Support-Vektoren",     PostScript downloaden
    Seminar thesis of the Seminar on Medical Image Processing that was coached by me, JH Hellenthal, January 1999 (in German).

  • Abdulla Elyas:
    "Statistische Objektlokalisation und -klassifikation",     PostScript downloaden
    Seminar thesis of the Seminar on Medical Image Processing that was coached by me, JH Hellenthal, January 2000 (in German).

Jörg Dahmen@Lehrstuhl für Informatik VI | dahmen@informatik.rwth-aachen.de -
Last modified: Monday, March 26th 2001