Comparing Feature Point Tracking with Dense Flow Tracking for Facial Expression Recognition. - José V. Ruiz; Ana Belén Moreno; Juan José Pantrigo; Ángel Sánchez 001 (IWINAC (2), 2009)

Differential optical flow applied to automatic facial expression recognition. - Ángel Sánchez 001; José V. Ruiz; Ana Belén Moreno; Antonio S. Montemayor; Javier Hernández; Juan José Pantrigo (Neurocomputing, 2011)