Abstract
The paper presents a variational framework to compute first and second order statistics of an ensemble of shapes undergoing deformations. Geometrically “meaningful” correspondence between shapes is established via a kernel descriptor that characterizes local shape properties. Such a descriptor allows retaining geometric features such as high-curvature structures in the average shape, unlike conventional methods where the average shape is usually smoothed out by generic regularization terms. The obtained shape statistics are integrated into segmentation as a prior knowledge. The effectiveness of the method is demonstrated through experimental results with synthetic and real images.
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Communicated by Lixin Shen and Yuesheng Xu.
For any questions regarding this manuscript, please contact the corresponding author Byung-Woo Hong.
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Hong, BW., Soatto, S. & Vese, L.A. Enforcing local context into shape statistics. Adv Comput Math 31, 185–213 (2009). https://doi.org/10.1007/s10444-008-9104-5
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DOI: https://doi.org/10.1007/s10444-008-9104-5