Towards a Primal Sketch of Real World Scenes in Early Vision

  • Axel F. Korn
Conference paper
Part of the Springer Study Edition book series (volume 41)


The problem of symbolic representation of intensity variations in gray-value pictures of real scenes is studied. The goal is to relate the responses of a filter bank of different gradient filters to the structure of the picture which is determined by the physics of the image generation process. A simple criterion is proposed for the selection of a suitable center frequency of the involved band-pass filters. The gradient vectors of the image function give the direction of maximal intensity changes with high resolution (8 bit) which can be used for an invariant shape description by corner points of a contour. The picture is segmented by closed contour lines into regions which form a topographic representation in the picture domain.


Edge Detection Filter Bank Corner Point Contour Point Real World Scene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Axel F. Korn
    • 1
  1. 1.Fraunhofer-Institut für Informations- und Datenverarbeitung (IITB)Karlsruhe 1W. Germany

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