Akira Utsumi Hirotake Yamazoe Kenichi Hosaka Seiji Igi Human Distribution Estimation Using Shape Projection Model Based on Multiple-Viewpoint Observations. 797-806 2006 conf/accv/2006-1 ACCV (1) http://dx.doi.org/10.1007/11612032_80 db/conf/accv/accv2006-1.html#UtsumiYHI06