Maja Pantic Michel François Valstar Ron Rademaker Ludo Maat Web-based database for facial expression analysis. 317-321 2005 conf/icmcs/2005 ICME https://doi.org/10.1109/ICME.2005.1521424 https://doi.ieeecomputersociety.org/10.1109/ICME.2005.1521424 db/conf/icmcs/icme2005.html#PanticVRM05