Steven CadavidMohamed Abdel-MottalebExploiting Visual Quasi-periodicity for Automated Chewing Event Detection Using Active Appearance Models and Support Vector Machines.1714-17172010ICPRhttps://doi.org/10.1109/ICPR.2010.424https://doi.ieeecomputersociety.org/10.1109/ICPR.2010.424conf/icpr/2010db/conf/icpr/icpr2010.html#CadavidA10