Source: https://www.researchgate.net/profile/Noureddine_Aboutabit/publication/30513735_Reconnaissance_de_la_Langue_Francaise_Parlee_Complete_LPC_decodage_phonetique_des_gestes_main-levres/links/55bb7d4308aed621de0da6c6/Reconnaissance-de-la-Langue-Francaise-Parlee-Complete-LPC-decodage-phonetique-des-gestes-main-levres.pdf