Appendix B: 3D Body Pose Keypoint Format

The 3D Body Pose consists of 34 Keypoints for Body Pose Tracking.

34 Keypoints of Body Pose Tracking

The 34 Keypoints of Body Pose tracking are pelvis, left hip, right hip, torso, left knee, right knee, neck, left ankle, right ankle, left big toe, right big toe, left small toe, right small toe, left heel, right heel, nose, left eye, right eye, left ear, right ear, left shoulder, right shoulder, left elbow, right elbow, left wrist, right wrist, left pinky knuckle, right pinky knuckle, left middle tip, right middle tip, left index knuckle, right index knuckle, left thumb tip, right thumb tip.

Here is the list of skeletal structures:

Kepoint	Parent
Pelvis	None, as this is root.
Left hip	Pelvis
Right hip	Pelvis
Torso	Pelvis
Left knee	Left hip
Right knee	Right hip
Neck	Torso
Left ankle	Left knee
Right ankle	Right knee
Left big toe	Left ankle
Right big toe	Right ankle
Left small toe	Left ankle
Right small toe	Right ankle
Left heel	Left ankle
Right heel	Right ankle
Nose	Neck
Left eye	Nose
Right eye	Nose
Left ear	Nose
Right ear	Nose
Left shoulder	Neck
Right shoulder	Neck
Left elbow	Left shoulder
Right elbow	Right shoulder
Left wrist	Left elbow
Right wrist	Right elbow
Left pinky knuckle	Left wrist
Right pinky knuckle	Right wrist
Left middle tip	Left wrist
Right middle tip	Right wrist
Left index knuckle	Left wrist
Right index knuckle	Right wrist
Left thumb tip	Left wrist
Right thumb tip	Right wrist

NvAR_Parameter_Output (KeyPoints) Order

The Keypoints order of the output from NvAR_Parameter_Output(KeyPoints) are the same as mentioned in 34 Keypoints of Body Pose Tracking.