Institute of Imaging and Computer Vision, RWTH Aachen University, Kopernikusstr. 16, Aachen, 52056, Germany. jaunger@ucdavis.edu.|Institute of Imaging and Computer Vision, RWTH Aachen University, Kopernikusstr. 16, Aachen, 52056, Germany.|Institute of Imaging and Computer Vision, RWTH Aachen University, Kopernikusstr. 16, Aachen, 52056, Germany.|Department of Chemosensation, Institute of Biology II, RWTH Aachen University, Worringer Weg 3, Aachen, 52074, Germany.|Department of Chemosensation, Institute of Biology II, RWTH Aachen University, Worringer Weg 3, Aachen, 52074, Germany.|Institute of Imaging and Computer Vision, RWTH Aachen University, Kopernikusstr. 16, Aachen, 52056, Germany.