Three-Dimensional Information Extraction of Discontinuity on Rock Slope by Processing Stereo Digital Images

입체 디지털 영상처리에 의한 암반사면의 불연속면에 대한 3차원 정보 추출

  • Lee Dong-Cheon (Department of Geoinformation Engineering, Sejong University) ;
  • Woo Ik (Department of Geoinformation Engineering, Sejong University) ;
  • Choi Jin Ok (Department of Geoinformation Engineering, Sejong University)
  • 이동천 (세종대학교 지구정보공학과) ;
  • 우익 (세종대학교 지구정보공학과) ;
  • 최진옥 (세종대학교 지구정보공학과)
  • Published : 2005.08.01

Abstract

This study describes image-based approach for efficient and objective evaluation method of the rock slope stability. Three-dimensional rock slope model was reconstructed by processing stereo digital images. The model provided fundamental information for geospatial analysis of the rock slope. Methods to extract three-dimensional information about discontinuity on the rock slope and to estimate roughness of the rock surfaces were suggested. The results show that stereo digital images have potential to provide information for both quantitative and qualitative analysis of rock slope. In addition, visualization of the results increases efficiency and benefit in evaluating rock slope stability.

Keywords

digital photogrammetry;DTM;rock discontinuity;surface roughness;aspect and slope analysis

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