Development of Novel Iterative Closest Point (ICP) Algorithm for Surface Registration of Surgical Navigation System
The purpose of this study was to improve the surface registration accuracy by improving the ICP algorithm used
for surface registration. In order to improve registration accuracy, the nearest CT data corresponding with the optical data
was searched by the k-NN algorithm (k = 2…7). A plane or vector was created using the selected CT data and the optical
point data was projected onto the plane or vector to generate new CT point. As a result of the analysis, the registration
accuracy of Improved ICP algorithm was higher than that of the ICP algorithm.
Keywords - Surface registration, target registration error, k-nearest neighbor, projection