双检测人脸防伪识别=人脸检测+活体检测+人脸识别

1.人脸关键点+语义分割

使用mediapipe进行视频人脸关键点检测和人像分割：

import time
import cv2
import mediapipe as mp
import numpy as np

mp_drawing = mp.solutions.drawing_utils
mp_drawing_styles = mp.solutions.drawing_styles
mp_selfie_segmentation