Face detection algorithms comparison / Face detection tips, suggestions, and best practices

• OpenCV DNN
  • YuNet / high-performance-face-detection - a light-weight, fast and accurate face detection model
  • opencv/samples/dnn/face_detect.py - opencv battery included - ./dnn/example_dnn_face_detect -m=/home/yves/Downloa ds/face_detection_yunet_2022mar.onnx
    • ShiqiYu/libfacedetection - ./detect -m=/home/yves/Downloads/face_detection_yunet_2022mar.onnx
    • models
  • detect_faces.py
• OpenCV Haarcascade
• Detecting a face using Dlib
• MTCNN
• Facenet
• OpenFace
• The Viola-Jones Algorithm (2001)
  • Haar-like features (edge, line, four rectangle features)
  • Integral Image - compute sum once, then 4 point give the integral inside the given rectangle
  • Adaboost - build a strong classifier from weaker one, complementing each previous one

Mediapipe

• Truthsayer - use MediaPipe’s Face Mesh

• Face Landmark Detection / Murtaza’s Workshop
  • Latest Pose Estimation Realtime

• Face Body and Hand Pose Detection with Python and Mediapipe

• insightface
  • RetinaFace-tf2

dlib

• HOG + Linear SVM: dlib.get_frontal_face_detector() - use less cpu but less reliable
• MMOD CNN: dlib.cnn_face_detection_model_v1(modelPath) - would take advangate of gpu, more reliable

Profile Face

• why it cannot detect some profile face?
• Face Detection with OpenCV for non frontal images
  • Feature detection in profile face images

Body detection

• How to detect individual body parts in an image
• OpenCV - detection of human body
• Yolo Human_Detection
• Person Detection using YOLO and OpenCV
  • Yolo v3