Michel François Valstar, Hatice Gunes, Maja Pantic. How to distinguish posed from spontaneous smiles using geometric features. In Dominic W. Massaro, Kazuya Takeda, Deb Roy, Alexandros Potamianos, editors, Proceedings of the 9th International Conference on Multimodal Interfaces, ICMI 2007, Nagoya, Aichi, Japan, November 12-15, 2007. pages 38-45, ACM, 2007. [doi]
Abstract is missing.