text: It all starts when Prof. Thomas Huang started working with Prof. Nicu Sebe to develop better ways for humans and computers to communicate. The computer constructs a 3-D computer model of the face; it uses your face muscles to identify what you are feeling at that moment. Dr. Pual Eckman created this new software called FACS (Facial Action Coding System). He classified six basic emotions -happiness, surprise, anger, disgust, fear, sadness.