Matthieu Bray Esther Koller-Meier Luc J. Van Gool Smart Particle Filtering for 3D Hand Tracking. 675-680 2004 conf/fgr/2004 FGR http://csdl.computer.org/comp/proceedings/fgr/2004/2122/00/21220675abs.htm db/conf/fgr/fgr2004.html#BrayKG04