[IEEE Comput. Soc International Workshop on Recognition, Analysis and Tracking of Faces and Gestures in Real-Time Systems (RATFG-RTS'99) - Corfu, Greece (26-27 Sept. 1999)] Proceedings International Workshop on Recognition, Analysis, and Tracking of Faces and Gestures in Real-Time Systems. In Conjunction with ICCV'99 (Cat. No.PR00378) - Detection and tracking of faces in real environments