Face pose estimation method, system and device based on feature matching and storage medium

The invention discloses a face pose estimation method based on feature matching, and the method comprises the following steps: obtaining a face image containing a to-be-estimated pose, and carrying out the face detection and cutting preprocessing of the face image, and obtaining a preprocessed image; inputting the preprocessed image into a preset feature extraction network model to obtain contour feature information; matching the contour feature information with a preset face template, and obtaining an optimal matching degree template, wherein posture information of the optimal matching degree template is input face image posture information, the face template is a multi-posture face template, and each face template comprises information of three rotation directions. According to the method, system and device, the pre-trained face feature point positioning model is used, only the face contour features of the middle layer are used, the whole set of system is realized based on python, the method comprises the s