text: the new emotion, recognition softwere track these facial movements in a real face or in the painted face of Mona Lisa, the different unit, thte softwere can even identify mixed emotion, each expression is compared against a neutral face showing no emotion. the humans perform this same impressive every day. for instance, we can probably tell how a friend is feeling simply by the look on her face. us would have trouble actually describing each facial trait that conveys happy, worried, that artist such as da vici studied human anatomy to help them paint facial muscles precisely enough to convey specific emotion.