User behavior identification method and system, device with AR function and control method thereof

The invention provides a user behavior identification method. The method comprises the following steps: obtaining a frame-based local feature image from image frames of a user contained in a video; classifying user behaviors in image frames through at least one of the following three modes: classifying the user behaviors according to the frame-based local feature images and the human body posturefeatures; obtaining a video-based local feature image according to the frame-based local feature image, and classifying user behaviors according to the video-based local feature image; obtaining a video-based local feature image according to the frame-based local feature image, and classifying user behaviors according to the video-based local feature image and the video-based overall feature image; and fusing the user behavior classification results obtained by at least one of the three modes to identify the user behavior. The invention further provides a user behavior recognition system, equipment with an AR function