Kenichi Takahashi, Kousuke Yamada, Tomoaki Nakano, Shin Yamamoto. Method of detecting concentration on cellular phone call from facial expression change by image processing. In Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, Waikoloa, Hawaii, USA, October 10-12, 2005. pages 3444-3448, IEEE, 2005. [doi]
Abstract is missing.