@InProceedings{CantonCLEAR2007Head,
  author  = {Cristian Canton Ferrer and Josep R. Casas and Montse Pardàs},
  title   = {Head Orientation Estimation using Particle Filtering in Multiview Scenarios},
  booktitle = {Classification of Events, Activities and Relationships Evaluation and Workshop (CLEAR)},
  publisher = {Springer},
  series    = {Lecture Notes on Computer Science},
  volume    = {4625},
  year      = {2007},
  pages     = {317--327}
}