An improved coordinate system for point correspondences of 2D articulated shapes

Abstract

To find corresponding points in different poses of the same articulated shape, a non rigid coordinate system is used. Each pixel of each shape is identified by a pair of distinct coordinates. The coordinates are used to address corresponding points. This paper proposes a solution to a discretization problem identified in a previous approach. The polar like coordinate system is computed in a space where the problem cannot occur, followed by mapping the computed coordinates to pixels. © 2009 Springer Berlin Heidelberg.