Kentaro Hayashi Manabu Hashimoto Kazuhiko Sumi Koichi Sasakawa Multiple-Person Tracker with a Fixed Slanting Stereo Camera. 681-686 2004 conf/fgr/2004 FGR http://csdl.computer.org/comp/proceedings/fgr/2004/2122/00/21220681abs.htm db/conf/fgr/fgr2004.html#HayashiHSS04