Geometric Model based Registration of Terrestrial Laser Scanning Data

摘要

This paper presents an approach for registration of terrestrial laser scanning point clouds based on geometric models while there are no targets in the scanning process. We obtain the axis vectors of the cylinders that are fitted from the segmented point clouds in the overlapping areas. Then we solve the parameters of the rotation and translation of coordination by using the axis vectors and the centers of the cylinders. Further, we analyze the registration accuracy and its influencing factors, and the result shows that the geometric model based approach actually offers high degree of flexibility and meets high accuracy for registering terrestrial laser scanning data.