REVIEW OF FACIAL EXPRESSION RECOGNITION SYSTEM AND USED DATASETS

The human face is main part to recognize the indivi duals as well as provides the important information , current state of user behavior through their different expressions. There fore, in biometric area of the research, automatica lly face & face expression recognition attracts researcher’s interest. The oth er areas which use such technique are computer scie nce medicine, psychology etc. Usually face recognition system is consisting of many internal tasks. Face detection is thefirst task of such systems. Due to different variations across the human faces, the pr ocess of detecting face becomes complex. But with h elp of different modeling methods, it becomes possible to recognize the face and hence different face expressions. This paperpre sents a literature review over the techniques and methods used for facial exp ression recognition. Also, different facial express ion datasets available for the research or testing of existing methods of facial e xpression recognition are discussed.