Juan B. Gómez Jorge E. Hernández Flavio Prieto Tanneguy Redarce Real-Time Robot Manipulation Using Mouth Gestures in Facial Video Sequences. 224-233 2007 conf/bvai/2007 BVAI http://dx.doi.org/10.1007/978-3-540-75555-5_21 db/conf/bvai/bvai2007.html#GomezHPR07