3D Mesh Segmentation by Region Growing based on Discrete Curvature

The purpose of this work is the segmentation of a 3D object composed of triangular planar meshes by region growing based on discrete curvature. The curvature value is computed for each vertex of the mesh then it is labeled with a value belonging to a curvature class. An iterative and recursive region growing process builds regions of neighbor vertices belonging to the same curvature class and starting from a seed vertex. Then, another iterative merging process eliminates poor regions, and particularly merges neighbor regions with the same curvature class. Final obtained regions are colored in order to distinguish between different parts of the 3D object. Experimental results are tested on sample triangular meshes, and the method can be generalized to other 3D models.