An optimal frame selection method based on a dynamic face

The invention discloses an optimal frame selection method based on a dynamic face. The method comprises the following steps: S101, video sample collection: collecting video sample information in a front-end camera in advance; S103, extracting target group information: extracting continuous frame pictures of each target person from the video sample information obtained in the step S101 as target group units, and storing the target group units; S105, extracting target group feature information: extracting face information from the target group units obtained in the step S103 by using MTCNN, andstoring the extracted face information as the target group feature information; and S107, information grouping: carrying out manual labeling on the target group feature information obtained in the step S105, and carrying out manual labeling according to the image quality of the face information. According to the invention, through the mutual cooperation, respective doing and mutual cooperation ofall the above functions, t