Rapid Point Cloud Registration Algorithm for CRTSⅢ Track Slab Measurement
Aiming at the problem of rapid registration of CRTSⅢ track slab point cloud of high-speed railway,a registration algorithm of track slab point cloud based on key planes is proposed to provide basic data for track slab measurement. This method takes the sleeper of CRTSⅢ track slab as the unit,uses the key planes of point cloud of some sleepers as the starting data to complete the verti-cal and horizontal registration of the track slab;it introduces a target or target ball to overcome the uncertainty caused by the high con-sistency of the scene of CRTSⅢ track slab and ensures the accuracy of the track slab registration in the line direction. The method is used to register the track slab point cloud with the measured track slab data of adjacent stations. The experimental results show that the algorithm can realize the rapid and accurate point cloud registration of CRTS Ⅲ track slabs.
registrationsleeperkey planesCRTSⅢ track slab point cloud
万方数据
维普
