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A new shape descriptor defined on the Radon transform

2005; Elsevier BV; Volume: 102; Issue: 1 Linguagem: Inglês

10.1016/j.cviu.2005.06.005

1090-235X

Salvatore Tabbone, Laurent Wendling, Jean-Pierre Salmon,

Medical Image Segmentation Techniques

This paper presents a novel approach to identify complex shapes based on the Radon transform. We propose an adaptation of Radon transform called R-transform, which is invariant to common geometrical transformations. Moreover, to improve the uniqueness of the approach, a binary shape is projected into the Radon space for different levels of the Chamfer distance transform. The accuracy and the efficiency of the proposed algorithm in the presence of a variety of transformations are evaluated within a shape recognition process.