TY - GEN
T1 - Motion error analysis of 3D coordinates of airborne LIDAR under typical terrains
AU - Peng, Tao
AU - Lan, Tian
AU - Ni, Guoqiang
PY - 2012
Y1 - 2012
N2 - With the expansion of airborne LIDAR application, the requirements of accuracy and reliability for airborne LIDAR are increasing. Therefore it is necessary to analyze the motion errors of airborne LIDAR data in order to correct errors and improve accuracy. In this paper, in connection with five kinds of typical terrains, a method for the analysis of dynamic 3D coordinate errors is proposed and models for motion errors of 3D coordinates under typical terrains are established. By choosing the flight altitude, point cloud spacing, instantaneous scanning angle, and other variables, the static and dynamic simulations are conducted. Then the corresponding simulation results are analyzed comparatively. It is shown that 3D coordinate errors are the smallest under flat terrain. On the other hand, under non-flat terrain, the greater the slop angle, the greater the 3D coordinate errors are. The error along flight direction is greater than that along the other two directions. In addition, dynamic 3D coordinate errors are much greater than static 3D coordinate errors. For example, static elevation error is about 0.16m, while dynamic elevation error is 1.02m. In conclusion, it is favorable to select the appropriate flight altitude, point cloud spacing and instantaneous scanning angle as to improve the measurement accuracy.
AB - With the expansion of airborne LIDAR application, the requirements of accuracy and reliability for airborne LIDAR are increasing. Therefore it is necessary to analyze the motion errors of airborne LIDAR data in order to correct errors and improve accuracy. In this paper, in connection with five kinds of typical terrains, a method for the analysis of dynamic 3D coordinate errors is proposed and models for motion errors of 3D coordinates under typical terrains are established. By choosing the flight altitude, point cloud spacing, instantaneous scanning angle, and other variables, the static and dynamic simulations are conducted. Then the corresponding simulation results are analyzed comparatively. It is shown that 3D coordinate errors are the smallest under flat terrain. On the other hand, under non-flat terrain, the greater the slop angle, the greater the 3D coordinate errors are. The error along flight direction is greater than that along the other two directions. In addition, dynamic 3D coordinate errors are much greater than static 3D coordinate errors. For example, static elevation error is about 0.16m, while dynamic elevation error is 1.02m. In conclusion, it is favorable to select the appropriate flight altitude, point cloud spacing and instantaneous scanning angle as to improve the measurement accuracy.
KW - 3D coordinates
KW - airborne LIDAR
KW - motion errors
KW - typical terrains
UR - http://www.scopus.com/inward/record.url?scp=84870698897&partnerID=8YFLogxK
U2 - 10.1109/IST.2012.6295553
DO - 10.1109/IST.2012.6295553
M3 - Conference contribution
AN - SCOPUS:84870698897
SN - 9781457717741
T3 - IST 2012 - 2012 IEEE International Conference on Imaging Systems and Techniques, Proceedings
SP - 200
EP - 206
BT - IST 2012 - 2012 IEEE International Conference on Imaging Systems and Techniques, Proceedings
T2 - 2012 IEEE International Conference on Imaging Systems and Techniques, IST 2012
Y2 - 16 July 2012 through 17 July 2012
ER -