摘要：In this paper we propose a simple model for the coupling
behavior of the human spine for an inverse kinematics
framework. Our spine model exhibits anatomically correct
motions of the vertebrae of virtual mannequins by
coupling standard swing and revolute joint models. The
adjustement of the joints is made with several simple
(in)equality constraints, resulting in a reduction of the
solution space dimensionality for the inverse kinematics
solver. By reducing the solution space dimensionality to
feasible spine shapes, we prevent the inverse kinematics
algorithm from providing infeasible postures for the spine.In this paper, we exploit how to apply these simple constraints to the human spine by a strict decoupling of the swing and torsion motion of the vertebrae. We demonstrate the validity of our approach on various experiments.
关键词：Articulated Structure;Inverse Kinematics;Joint Coupling;Virtual Human Modeling
