3D Morphing without User Interaction

Nowadays, 3D morphing, defined as smoothly transforming a 3D object into another one, remains a challenging topic in the graphics community. The usual way to deal with such process consists first in establishing a point-topoint correspondence and then in computing the intermediate shapes. In the past, much effort has been invested to automate the correspondence problem, but all the proposed methods need some user interaction, consisting in a set of clicks, to generate visually pleasant results. We present a fully automatic morphing algorithm for arbitrary genus 0 meshes, that combines improved registration techniques with feature points detection in order to automate the point correspondences and that directly defines a more realistic interpolation technique than the classical linear one. To our knowledge this is the first successful attempt to completely automate the process while resulting in meaningful intermediate shapes.