Application of Unmanned Aerial Vehicle Oblique Photogrammetry to Investigation of High Slope Rock Structure

Titel in Übersetzung: 无人机倾斜摄影测量在边坡岩体结构面调查中的应用

Zhen Ye, Qiang Xu*, Qian Liu, Xiujun Dong, Xiaochen Wang, Hao Ning

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

Objectives: Traditional remote sensing methods are often limited by the complex terrain and the hardware equipment, which often leads to in-situ measurements that cannot comprehensively, accurately and quickly obtain the slope rock structure data sets. Unmanned aerial vehicle (UAV) oblique photogrammetry technology can obtain comprehensive information on rock structure. Methods: We describe a method for acquiring, visualizing, and extracting three-dimensional information of high slope rock structure based on the dense surface points. The oblique photogrammetric data acquired with UAV is considered and a multi-rotor drone with single-lens is used for aerial surveys to reconstruct the three-dimensional point cloud model of the high slope. The Hough normal algorithm and the HSV(hue, saturation, value) algorithm are used to build a visual three-dimensional rock mass structure model and the model is spherical k-means clustering to complete the automatic extraction of rock structure. Results: From the three-dimensional rock structure analysis, it is possible to quickly extract rock structure characteristics such as orientation, spacing and trace length by rendering the geometry of the three-dimensional slope face. Conclusions: Further research is being carried out in order to build blocky slope masses and identify the kinematic instability of the high limestone cliffs.

Titel in Übersetzung无人机倾斜摄影测量在边坡岩体结构面调查中的应用
Originalsprachechinesisch
Seiten (von - bis)1739 - 1746
Seitenumfang8
FachzeitschriftGeomatics and Information Science of Wuhan University
Jahrgang45
Ausgabenummer11
DOIs
PublikationsstatusVeröffentlicht - 18 Nov 2020

Schlagwörter

  • rock structure
  • high slope
  • UAV imagery
  • HSV algorithm
  • 3D visualization
  • spherical k‑means clustering

ASJC Scopus subject areas

  • !!Computer Science (miscellaneous)
  • !!Earth-Surface Processes

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