Shiftable Leading Point Method for High Accuracy Registration of Airborne and Terrestrial LiDAR Data

Liang Cheng, Lihua Tong, Yang Wu, Yanming Chen, Manchun Li
2015 Remote Sensing  
A new automated approach to the high-accuracy registration of airborne and terrestrial LiDAR data is proposed, which has three primary steps. Firstly, airborne and terrestrial LiDAR data are used to extract building corners, known as airborne corners and terrestrial corners, respectively. Secondly, an initial matching relationship between the terrestrial corners and airborne corners is automatically derived using a matching technique based on maximum matching corner pairs with minimum errors
more » ... h minimum errors (MTMM). Finally, a set of leading points are generated from matched airborne corners, and a shiftable leading point method is proposed. The key feature of this approach is the implementation of the concept of shiftable leading points in the final step. Since the geometric accuracy of terrestrial LiDAR data is much better than that of airborne LiDAR data, leading points corresponding to anomalous airborne corners could be modified for the improvement of the geometric accuracy of registration. Sens. 2015Sens. , 7 1916 The experiment demonstrates that the proposed approach can advance the geometric accuracy of two-platform LiDAR data registration effectively. OPEN ACCESS Remote
doi:10.3390/rs70201915 fatcat:jtyrubtdznbhdf2fsuvhcr2awu