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A Study on the Extraction of Slope Surface Orientation using LIDAR with respect to Triangulation Method and Sampling on the Point Cloud
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  • Journal title : Tunnel and Underground Space
  • Volume 26, Issue 1,  2016, pp.46-58
  • Publisher : Korean Society for Rock Mechanics
  • DOI : 10.7474/TUS.2016.26.1.046
 Title & Authors
A Study on the Extraction of Slope Surface Orientation using LIDAR with respect to Triangulation Method and Sampling on the Point Cloud
Lee, Sudeuk; Jeon, Seokwon;
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In this study, a LIDAR laser scanner was used to scan a rock slope around Mt. Gwanak and to produce point cloud from which directional information of rock joint surfaces shall be extracted. It was analyzed using two different algorithms, i.e. Ball Pivoting and Wrap algorithm, and four sampling intervals, i.e. raw, 2, 5, and 10 cm. The results of Fuzzy K-mean clustering were analyzed on the stereonet. As a result, the Ball Pivoting and Wrap algorithms were considered suitable for extraction of rock surface orientation. In the case of 5 cm sampling interval, both triangulation algorithms extracted the most number of the patch and patched area.
Point cloud;Triangulation;Orientation extraction;Sampling interval;
 Cited by
입체사진측량기법을 이용한 지하 광산의 발파 여굴 분석에 관한 연구,이승중;최성웅;이수득;전석원;진연호;정민수;

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