@article{EURECOM+4606, author = {Fradi, Hajer and Dugelay, Jean-Luc}, title = {Spatial and temporal variations of feature tracks for crowd behavior analysis}, journal = {Journal on Multimodal User Interfaces, May 2015, Springer}, year = {2015}, note = {© Springer. Personal use of this material is permitted. The definitive version of this paper was published in Journal on Multimodal User Interfaces, May 2015, Springer and is available at : http://dx.doi.org/10.1007/s12193-015-0179-2}, }