Translated Titles

A Study on the Topographic Changes Using Ground-based 3D Laser Data




蕭國鑫(Kuo-Hsin Hsiao);劉進金(Jin-King Liu);曾義星(Yi-Hsing Tseng);王晉倫(Chin-Lun Wang)

Key Words

崩塌地 ; 數值高程模型 ; 三維雷射掃描儀 ; Landslides ; Digital Elevation Model DEM ; Ground-based 3D Laser Scanner



Volume or Term/Year and Month of Publication

15卷1期(2010 / 03 / 01)

Page #

97 - 109

Content Language


Chinese Abstract


English Abstract

Ground-based 3D laser data are used in this study for the estimation of riverbed topographic change. A point-cloud of high precision and high density can be obtained in a few minutes for the sensitive riverbed areas. With a limited control survey of precise targets using GPS and total stations, multiple scans of ground-based LiDAR can be registered together to form one cohesive 3D model. And, thus, different periods of topographic data are overlaid for estimating the changes of the target areas. Two cases are practiced in this study. In the first case, the scoured riverbed on Zu-Zi-Jiao-Keng stream, a branch of Cho-Shui river in Nan-Tou County was scanned before and after typhoon Mindulle on 2 June 2004, with a total of 15 scans in 5 stations by using ILRIS-3D laser scanner. Subsequently, they were registered and joined and re-sampled to a 20 cm grid. The second case is located in San-Boo-Keng upstream. It is found that in the first case that maximum erosion height of riverbed changes was between 5~10 m. In the second case, the average height of silted-up is about 5~10 m. The effectiveness of applying 3D laser scanning is proved in this study.

Topic Category 工程學 > 交通運輸工程
Times Cited
  1. 許智凱(2013)。猴山岳崩塌地的光達掃描與剖面演進分析。臺北科技大學土木與防災研究所學位論文。2013。1-110。 
  2. 鐘琬婷(2011)。應用無人工佈標之近景攝影測量建立災害邊坡數值地形模型。臺北科技大學土木與防災研究所學位論文。2011。1-77。