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Learning the Topology of Object Views

  • Jan Wieghardt
  • Rolf P. Würtz
  • Christoph von der Malsburg
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2353)

Abstract

A visual representation of an object must meet at least three basic requirements. First, it must allow identification of the object in the presence of slight but unpredictable changes in its visual appearance. Second, it must account for larger changes in appearance due to variations in the object’s fundamental degrees of freedom, such as, e.g., changes in pose. And last, any object representation must be derivable from visual input alone, i.e., it must be learnable.

We here construct such a representation by deriving transformations between the different views of a given object, so that they can be parameterized in terms of the object’s physical degrees of freedom. Our method allows to automatically derive the appearance representations of an object in conjunction with their linear deformation model from example images. These are subsequently used to provide linear charts to the entire appearance manifold of a three-dimensional object. In contrast to approaches aiming at mere dimensionality reduction the local linear charts to the object’s appearance manifold are estimated on a strictly local basis avoiding any reference to a metric embedding space to all views. A real understanding of the object’s appearance in terms of its physical degrees of freedom is this way learned from single views alone.

Keywords

Object recognition pose estimation view sphere correspondence maps learning 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Jan Wieghardt
    • 1
  • Rolf P. Würtz
    • 2
  • Christoph von der Malsburg
    • 2
    • 3
  1. 1.SIEMENS AG, CT SE 1MünchenGermany
  2. 2.Institut für NeuroinformatikRuhr-Universität BochumBochumGermany
  3. 3.Laboratory for Computational and Biological VisionUniversity of Southern CaliforniaUSA

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