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Describing and Matching 2D Shapes by Their Points of Mutual Symmetry

2020-03-27 | |  86 |   37 |   0

Abstract

A novel shape descriptor is introduced. It groups pairs of points that share a geometrical property that is based on their mutual symmetry. The descriptor is visualized as a diagonally symmetric dia- gram with binary valued regions. This diagram is a fingerprint of global symmetry between pairs of points along the shape. The descriptive power of the method is tested on a well-known shape data base containing sev- eral classes of shapes and partially occluded shapes. First tests with simple, elementary matching algorithms show good results.

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