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Y. Sahillioğlu and Y. Yemez Partial 3-D Correspondence from Shape Extremities Computer Graphics Forum 33

Version of Record online: 24 JAN 2014 | DOI: 10.1111/cgf.12278

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We present a 3D correspondence method to match the geometric extremities of two shapes which are partially isometric. We consider the most general setting of the isometric partial shape correspondence problem, in which shapes to be matched may have multiple common parts at arbitrary scales as well as parts that are not similar. Our rank-and-voteand-combine (RAVAC) algorithm identifies and ranks potentially correct matches by exploring the space of all possible partial maps between coarsely sampled extremities. The qualified top-ranked matchings are then subjected to a more detailed analysis at a denser resolution and assigned with confidence values that accumulate into a vote matrix.

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