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Topological and Geometrical Reconstruction of Complex Objects on Irregular Isothetic Grids

  • Antoine Vacavant
  • David Coeurjolly
  • Laure Tougne
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4245)

Abstract

In this paper, we address the problem of vectorization of binary images on irregular isothetic grids. The representation of graphical elements by lines is common in document analysis, where images are digitized on (sometimes very-large scale) regular grids. Regardless of final application, we propose to first describe the topology of an irregular two-dimensional object with its associated Reeb graph, and we recode it with simple irregular discrete arcs. The second phase of our algorithm consists of a polygonal reconstruction of this object, with discrete lines through the elementary arcs computed in the previous stage. We also illustrate the robustness of our method, and discuss applications and improvements.

Keywords

Complex Object Height Function Euler Number Reeb Graph Discrete Line 
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 2006

Authors and Affiliations

  • Antoine Vacavant
    • 1
  • David Coeurjolly
    • 2
  • Laure Tougne
    • 1
  1. 1.LIRIS – UMR 5205, Université Lumière Lyon 2BronFrance
  2. 2.LIRIS – UMR 5205, Université Claude Bernard Lyon 1VilleurbanneFrance

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