For the applications like video conferencing, real-time tracking of human f
aces is an essential task. In this paper, we propose a fast algorithm for t
racking human face regions in color motion images. This algorithm is based
on chromatic histogram and histogram backprojection operation. Our experime
ntal results show that the proposed algorithm can be used in real-time appl
ications. Additionally it has the advantage of being insensitive to small v
ariations of face regions. (C) 1999 Elsevier Science B.V. All rights reserv
ed.