1. Department of Radiooncology, Rostock University Medical Center, 18059 Rostock, Germany
2. Laboratory for Optical 3D Metrology and Computer Vision, University of Applied Sciences Kempten, 87435 Kempten, Germany
3. Paul Scherrer Institute, 5232 Villigen, Switzerland
4. ICube Laboratory (Engineering Science, Computer Science and Imaging Laboratory) and Biophysics and Nuclear Medicine Department, Faculty of Medicine, University of Strasbourg, 67412 Strasbourg, France
5. Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center, 79106 Freiburg, Germany
6. Faculty of Biology, University of Freiburg, 79106 Freiburg, Germany