Abstract
The aim of this chapter is to identify those face areas containing high facial expression information, which may be useful for facial expression analysis, face and facial expression recognition and synthesis. In the study of facial expression analysis, landmarks are usually placed on well-defined craniofacial features. In this experiment, the authors have selected a set of landmarks based on craniofacial anthropometry and associate each of the landmarks with facial muscles and the Facial Action Coding System (FACS) framework, which means to locate landmarks on less palpable areas that contain high facial expression mobility. The selected landmarks are statistically analysed in terms of facial muscles motion based on FACS. Given that human faces provide information to channel verbal and non-verbal communication: speech, facial expression of emotions, gestures, and other human communicative actions; hence, these cues may be significant in the identification of expressions such as pain, agony, anger, happiness, et cetera. Here, the authors describe the potential of computer-based models of three-dimensional (3D) facial expression analysis and the non-verbal communication recognition to assist in biometric recognition and clinical diagnosis.
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