Discussion on Adaptive Iterative Correction Algorithm for Placement Angle of Airborne LiDAR System
The placement angle parameters have a significant impact on the accuracy and quality of point cloud data in airborne LiDAR operations,causing changes in the true position of ground objects and layering of adjacent aerial point clouds.Howev-er,the traditional calibration mode of deploying ground control points has low efficiency,high cost,high requirements,and poor operability.To avoid the aforementioned drawbacks,a placement angle adaptive calibration model is proposed,by itera-tively matching the spatial positions of a large number of identical feature points within adjacent overlapping airstrips and calcu-lating the placement angle parameters,the least squares configuration method is used to solve the three placement angle param-eters of the airborne LiDAR scanning system.The algorithm program is implemented using C language,which has been veri-fied in test cases,improving the efficiency of placement angle calibration and improving the processing quality,applicability and operability of point clouds in complex terrain using airborne LiDAR technology.
airborne LiDARsame name point featuresplacement angle parameters
万方数据
维普
