# Checkpoint layout - `face_visibility/best.pt`: YOLOv5m face/no-face checkpoint. Class mapping: `0 = face`, `1 = no_face`. - `nose_detection/best.pt`: YOLOv5m nose-localization checkpoint. Class mapping: `0 = nose`. These are PyTorch checkpoint files. Load them only in a trusted Python environment and use the compatible YOLOv5 code distributed with the NoseNet implementation.