Topology matching for fully automatic similarity estimation of 3D shapes

  • Authors:

  • Masaki Hilaga;Yoshihisa Shinagawa;Taku Kohmura;Tosiyasu L. Kunii

  • Affiliations:

  • The University of Tokyo;The University of Tokyo;The Institute of Physical and Chemical Research;Hosei University and Kanazawa Institute of Technology

  • Venue:
  • Proceedings of the 28th annual conference on Computer graphics and interactive techniques
  • Year:
  • 2001

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Abstract

There is a growing need to be able to accurately and efficiently search visual data sets, and in particular, 3D shape data sets. This paper proposes a novel technique, called Topology Matching, in which similarity between polyhedral models is quickly, accurately, and automatically calculated by comparing Multiresolutional Reeb Graphs (MRGs). The MRG thus operates well as a search key for 3D shape data sets. In particular, the MRG represents the skeletal and topological structure of a 3D shape at various levels of resolution. The MRG is constructed using a continuous function on the 3D shape, which may preferably be a function of geodesic distance because this function is invariant to translation and rotation and is also robust against changes in connectivities caused by a mesh simplification or subdivision. The similarity calculation between 3D shapes is processed using a coarse-to-fine strategy while preserving the consistency of the graph structures, which results in establishing a correspondence between the parts of objects. The similarity calculation is fast and efficient because it is not necessary to determine the particular pose of a 3D shape, such as a rotation, in advance. Topology Matching is particularly useful for interactively searching for a 3D object because the results of the search fit human intuition well.