Equi-affine Invariant Geometries of Articulated Objects
作者： Dan Raviv , Alexander M. Bronstein , Michael M. Bronstein , Ron Kimmel , Nir Sochen
DOI: 10.1007/978-3-642-34091-8_8
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摘要: We introduce an (equi-)affine invariant geometric structure by which surfaces that go through squeeze and shear transformations can still be properly analyzed. The definition of affine metric enables us to evaluate a new form geodesic distances construct Laplacian from local global diffusion geometry is constructed. Applications the proposed framework demonstrate its power in generalizing enriching existing set tools for shape analysis.
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