15-keypoint format Joints Ordering We use the first 15 keypoints defined in BODY_25. 0 Nose 1 Neck 2 R_shoulder 3 R_elbow 4 R_wrist 5 L_shoulder 6 L_elbow 7 L_wrist 8 Mid_hip 9 R_hip 10 R_knee 11 R_ankle 12 L_hip 13 L_knee 14 L_ankle
