Figure 3.
MR-based virtual 3D models automatically adapted to one subject. Left: A subject in the lateral decubitus position with a QR code (a) and two beacons (b/c) affixed to the dorsal skin. Right: The position of the subject’s virtual 3D lumbar model was automatically and manually adapted to match the real lumbar spine. b’/c’: Virtual beacons. Yellow arrows: manual fine-tuning in four directions.