Abstract
Human-computer interaction (HCI) is the third revolution of information technology after cloud computing and big data. In the design of HCI, it usually involves physical level, cognitive level and emotional level, while emotion recognition and affective computing (ERAC) are the main contents of emotional level. In this paper, the concept and function of ERAC are described; the progress of research on ERAC from facial expression, voice, text, physiological signal and other aspects are analyzed; the application of ERAC in the computer science, health care, media entertainment, intelligent equipment, education and other fields are expound. Finally, in order to provide reference and basis for further research, the problems that need to be studied and future work are prospected.
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