Face Expression Recognition and Analysis The State of the Art

Recenttechnologicaladvanceshaveenabledhumanuserstointeractwithcomputersinwayspreviouslyunimaginable.Beyondtheconfinesofthekeyboardandmouse,newmodalitiesforhuman-computerinteractionsuchasvoice,gesture,andforce-feedbackareemerging.Despiteimportantadvances,onenecessaryingredientfornaturalinte