Vision-based animation of digital humans

The paper presents a system for animating customized virtual humans using motion parameters estimated from multi-view image sequences. The advantage of the method is that the subject does not have to wear markers or other devices. The authors offer a detailed analysis of the singularities that might arise during tracking humans using multiple cameras and provide an analysis of the criteria that allow the ordering of the cameras that provide the most information for tracking. They demonstrate their system using image sequences requiring the recovery of complex three-dimensional motions in the presence of significant occlusion, and present a quantitative analysis of the accuracy of the estimated motion parameters