related publications


A 3D voxel reconstruction of the body in each frame is computed from silhouettes extracted from six cameras. Human body model is described using twists framework. An extended Kalman filter performs the tracking and with joint angle limits guarantees physically valid posture estimates. The system also performs automatic model acquisition using a Bayesian network for estimation of body part sizes. The system has been evaluated on a number of different motions such as sitting, jumping, running, dancing, walking, kicking, etc.

These are the models the system acquires for five different people. The process is fully automated. The parameters of the Bayesian network are fixed.


Original View Voxel Reconstruction Model Acquisition
and Tracking