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

Volume

1

fYear

2012

fDate

26-27 Aug. 2012

Firstpage

181

Lastpage

184

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IHMSC.2012.52

Filename

6305656