Abstract
In this paper, we present an algorithm to morph a zero-genus mesh model to a topologically equivalent one based on spherical parameterization, as it is the natural parameterization method for this kind of objects. Our algorithm starts by normalizing the two objects to the cube of unity, as a preprocessing step. Then, the two normalized models are parameterized onto a common spherical domain. We reposition the points of the objects on the sphere in accordance to the relative areas of their triangles. Repositioning on the sphere prevents point clustering and overlapping during the matching process. Experimental results are presented to demonstrate the efficiency of the algorithm.
Key words: 3D morphing, zero-genus mesh, spherical parameterization, nearest neighbor matching.
