Multimodal Medical Volume Registration Based on Spherical Markers.
Martin Čapek, Rainer Wegenkittl, Anne Koenig, Werner Rudolf Jaschke, R. Sweeney, Reto Josef Bale · Digital Library (University of West Bohemia) · 2001
We propose volume registration procedures based on spherical artificial markers presented in medical multimodal data sets (MRI and CT, especially). The procedures proposed are either semi-automatic or fully-automatic. A semi-automatic approach requires to label approximate locations of the spherical markers in the data sets and then registration operates autonomically. A fully-automatic approach does not require any user interaction, i.e. all registration subtasks – namely segmentation of spheres, finding the correspondence between two sets of spheres and, finally, computing geometrical transformation that maps the first set of spheres onto the second one – are performed automatically by the computer.