The slides for the tutorial given by Cristian Sminchisescu at ICCV 2005 can be found here:
http://www.cs.toronto.edu/~crismin/PAPERS/tutorial_iccv.pdf
Here is a link to a relevant workshop at the upcoming CVPR
2006 (
Human Motion Representation and Context for Human Sensing in Video
http://www.cs.toronto.edu/~crismin/workshop06.html