Facial expression recognition based on deep learning

Huilin Ge, Zhiyu Zhu, Yuewei Dai, Biao Wang, Xuedong Wu

Abstract: Highlights•Autonomous driving, virtual reality and all kinds of robots integrated into our life rely on facial expression recognition technology.•Facial expression recognition and computer vision is based on deep learning technology and convolutional neural network.•Whether it is two-stage target detection or single-stage target detection, performance of algorithm is measured by detection speed and accuracy.•Large variety of training data with accurate expression tags can fundamentally improve expression recognition rate.