Automated markerless extraction of walking people using deformable contour models: Research Articles
David K. Wagg, Mark S. Nixon · Computer Animation and Virtual Worlds · 2004
We develop a new automated markerless motion capture system for the analysis of walking people. We employ global evidence gathering techniques guided by biomechanical analysis to robustly extract articulated motion. This forms a basis for new deformable contour models, using local image cues to capture shape and motion at a more detailed level. We extend the greedy snake formulation to include temporal constraints and occlusion modelling, increasing the capability of this technique when dealing with cluttered and self-occluding extraction targets.This approach is evaluated on a large database of indoor and outdoor video data, demonstrating fast and autonomous motion capture for walking people. Copyright © 2004 John Wiley & Sons, Ltd.