Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Tuesday, July 10, 2012, 12:15 pm

Duration: 30 minutes

Location: CAB G51

Speaker: Gerald Weber (University of Auckland)

The Centroid is a Reference Point for the Symmetric Difference in d Dimensions

Reference points are a simple yet powerful tool for getting approximate matches for shapes.

We show that the centroid is a reference point for the symmetric difference with loss factor smaller than 1 + 2d for convex figures under affine transformations. This generalizes an earlier result for two dimensions.


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