Abstract
The advancement of science and technology has resulted in the growing prevalence of facial recognition technology in human-computer interaction, particularly in the domain of emotion recognition, where it shows significant potential. By identifying the user's facial expressions and emotional responses, the system is capable of conducting further analysis and prediction of the user's needs, thereby optimizing the emotion recognition experience of human-computer interaction. This article will elucidate the principles of facial recognition technology, with a particular focus on its practical applications and technical realization in emotion recognition. Furthermore, this article will examine the current limitations of the technology, discuss potential avenues for improvement, and speculate on the future development of facial recognition technology in the field of human-computer interaction. The technology is currently being used in a variety of areas, including smart home technology, medical rehabilitation and public services. The technology has the potential to improve the user experience by increasing the intelligence of devices and providing more personalised services to users through sentiment analysis.
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