Title :
Automated DTM Generation in Urban Areas with Airborne LiDAR Data
Author :
Xiong, Junhua ; Fang, Yuanmin ; Jin, Baoxuan ; Zhao, Zhenfeng
Author_Institution :
Fac. of land resource Eng., Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
This paper proposes a new method for the automatic generation of a digital terrain model (DTM) from airborne laser scanning technique. First, generate regular grids, and then filter the points on each regular grid. Finally, change the size of grid and filter these points on the new grids repeatedly. The data measured by LiteMapper-5600 in a city is used to evaluate the method. The results show that this method can remove most of non-ground points effectively and generate DTM with the high-accuracy in urban areas.
Keywords :
airborne radar; grid computing; least squares approximations; optical radar; optical scanners; radar computing; terrain mapping; LiteMapper-5600; airborne LiDAR data; airborne laser scanning technique; automated DTM generation; digital terrain model; regular grid generation; urban areas; Buildings; Equations; Filtering; Filtering algorithms; Laser radar; Mathematical model; Surface fitting; DTM; LiDAR; least square algorithm; surface fitting;
Conference_Titel :
Intelligent Human-Machine Systems and Cybernetics (IHMSC), 2012 4th International Conference on
Conference_Location :
Nanchang, Jiangxi
Print_ISBN :
978-1-4673-1902-7
DOI :
10.1109/IHMSC.2012.52
