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PAMI
2008

Globally Optimal Grouping for Symmetric Closed Boundaries by Combining Boundary and Region Information

8 years 7 months ago
Globally Optimal Grouping for Symmetric Closed Boundaries by Combining Boundary and Region Information
Many natural and man-made structures have a boundary that shows a certain level of bilateral symmetry, a property that plays an important role in both human and computer vision. In this paper, we present a new grouping method for detecting closed boundaries with symmetry. We first construct a new type of grouping token in the form of symmetric trapezoids by pairing line segments detected from the image. A closed boundary can then be achieved by connecting some trapezoids with a sequence of gap-filling quadrilaterals. For such a closed boundary, we define a unified grouping cost function in a ratio form: the numerator reflects the boundary information of proximity
Joachim S. Stahl, Song Wang
Added 14 Dec 2010
Updated 14 Dec 2010
Type Journal
Year 2008
Where PAMI
Authors Joachim S. Stahl, Song Wang
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