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On growth and formlets: Sparse multi-scale coding of planar shape
2013
Image and Vision Computing
This paper presents a sparse representation of 2D planar shape through the composition of warping functions, termed formlets, localized in scale and space. Each formlet subjects the 2D space in which the shape is embedded to a localized isotropic radial deformation. By constraining these localized warping transformations to be diffeomorphisms, the topology of shape is preserved, and the set of simple closed curves is closed under any sequence of these warpings. A generative model based on a
doi:10.1016/j.imavis.2012.11.002
fatcat:6us4izlb5vcs5nzlg2namqibgy