Untangling Cycles for Contour Grouping

  title={Untangling Cycles for Contour Grouping},
  author={Qihui Zhu and Gang Song and Jianbo Shi},
  journal={2007 IEEE 11th International Conference on Computer Vision},
We introduce a novel topological formulation for contour grouping. Our grouping criterion, called untangling cycles, exploits the inherent topological 1D structure of salient contours to extract them from the otherwise 2D image clutter. To define a measure for topological classification robust to clutter and broken edges, we use a graph formulation instead of the standard computational topology. The key insight is that a pronounced ID contour should have a clear ordering of edges, to which all… CONTINUE READING
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