Vision-based face tracking system for window interface: prototype application and empirical studies. - Kotaro Kitajima; Yoichi Sato 001; Hideki Koike (CHI Extended Abstracts, 2001)

Vision-Based Face Tracking System for Large Displays. - Yasuto Nakanishi; Takashi Fujii; Kotaro Kiatjima; Yoichi Sato 001; Hideki Koike (UbiComp, 2002)