Minimizing the topological structure of line images

  • Walter G. Kropatsch
  • Mark Burge
Structural Matching and Grammatical Inference
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1451)


We present a new algorithm based on Dual Graph Contraction (DGC) to transform the Run Graph into its Minimum Line Property Preserving (MLPP) form which, when implemented in parallel, requires O(log(longestcurve)) steps. A MLPP graph of a line image compliments the structural information in geometric graph representations like the run graph. Using such a graph and its dual, line image analysis systems can efficiently detect topological features like loops and holes and make use of relations like containment.


Dual Graph Line Image Information Preserve Iconic Representation Contour Representation 
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 1998

Authors and Affiliations

  • Walter G. Kropatsch
    • 1
  • Mark Burge
    • 2
  1. 1.Institute of Automation 183/2, Pattern Recognition and Image Processing GroupVienna University of TechnologyWienAustria
  2. 2.Institute of Systems Science, Computer Vision LaboratoryJohannes Kepler UniversityLinzAustria

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