@article{CantonICASSP2007Head, author = {Carlos Segura and Cristian Canton Ferrer and Alberto Abad and Josep R. Casas and Javier Hernando}, title = {Multimodal Head Orientation Towards Attention Tracking in SmartRooms}, journal = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, year = {2007}, }