Multiscale Combination of Physically-Based Registration and Deformation Modeling

1 In this paper we present a novel multiscale approach to recovery of nonrigid motion from sequences of registered intensity and range images. The main idea of our approach is that a nite element (FEM) model can naturally handle both registration and deformation modeling using a single model-driving strategy. The method includes a multiscale iterative algorithm based on analysis of the undirected Hausdor distance to recover correspondences. The method is evaluated with respect to speed,accuracy,and noise sensitivity. A dvantages of the proposed approach ar e demonstrated using man-made elastic materials and human skin motion. Experiments with regular grid featur esare used for performance comparison with a conventional approach (separate snakes and FEM models). It is shown that the new method does not requirea grid and can adapt the model to available object featur es.

• Type: Conference
• Year: 2000
• Where: CVPR
• Authors: Leonid V. Tsap, Dmitry B. Goldgof, Sudeep Sarkar
• Keywords: CVPR 2000, Multiscale Iterative Algorithm, Single Model-driving Strategy, Undirected Hausdor Distance