Interactive Deformation of Heterogeneous Volume Data.

This paper presents a method to interactively deform volume images with heterogeneous structural content, using coarse tetrahedral meshes. It rests on two major components: a massively parallel algorithm for the rasterization of tetrahedral meshes, and a method to define a coarse deformable tetrahedral mesh from the homogenization of a fine heterogeneous mesh. We show the potential of the method for training and planning applications through two examples: an abdominal CT exploration and the alignment of breast CT and MRIs.