Tao Yang Francine Chen Don Kimber Jim Vaughan Robust People Detection and Tracking in a Multi-Camera Indoor Visual Surveillance System. 675-678 2007 ICME http://dx.doi.org/10.1109/ICME.2007.4284740 conf/icmcs/2007 db/conf/icmcs/icme2007.html#YangCKV07