CONTACTLESS EMOTION DETECTION METHOD BASED ON MACHINE VISION

摘要

Provided is a contactless emotion detection method and apparatus based on machine vision. The method comprises: acquiring a video image containing human face information, so as to obtain an image sequence to be processed; determining a human face position at each frame of a video image in the image sequence to be processed by means of a pre-set human face detection algorithm and an image stabilization algorithm; carrying out normalization processing on the image sequence to be processed, extracting a human face image from the image sequence to be processed after the normalization processing, and further obtaining a facial local image matrix; and amplifying a color change in the facial local image matrix using a pre-set video amplification algorithm, and performing signal processing on the amplified facial local image sequence, so as to obtain human body signs. In the present invention, a human face detection module and an image stabilization module are introduced, so that a subject can move his/her head modestly within the shooting range of a camera during use, and the heart rate value of the subject can be accurately obtained.