Using OpenCV in Blender- Python scripts

Hello I cam across a video on youtube that takes the Vincent model from blender cloud and using opencv they person managed to get python/opencv to find key-points in a face on a webcam and map those keypoints to vincent’s blenrig armature rig. After doing so the user is able to ultimately get facial motion capture with out the expensive equipment. My question is, since this works on the face portion of Vincent’s rig is there a way to get the rest of the rig motion captured in a similar fashion? to ultimately get a full body motion capture without a suit. FYI i’ve seen some videos using open cv to find the body’s keypoints too… here are some ref links: