1. Delft Center for Systems and Control, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
2. Automation and Control Institute, Vienna University of Technology, Gusshausstr. 27-29, 1040 Vienna, Austria
3. Erasmus Optical Imaging Center, Department of Pathology, Josephine Nefkens Institute, Erasmus Medical Center, Dr. Molewaterplein 50, 3015 GE, Rotterdam, The Netherlands