Recognizing Simple Human Actions Using 3D Head Movement. - Jorge Usabiaga; George Bebis; Ali Erol; Mircea Nicolescu; Monica N. Nicolescu (Comput. Intell., 2007)

Global hand pose estimation by multiple camera ellipse tracking. - Jorge Usabiaga; Ali Erol; George Bebis; Richard Boyle; Xander Twombly (Mach. Vis. Appl., 2009)