Classifying Facial Actions
TheFacialActionCodingSystem(FACS)[23]isanobjectivemethodforquantifyingfacialmovementintermsofcomponentactions.Thissystemiswidelyusedinbehavioralinvestigationsofemotion,cognitiveprocesses,andsocialinteraction.Thecodingispresentlyperformedbyhighlytrainedhumanexperts.Thispaperexploresand
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