Applying digital vision metrology to monitor the behavior of rock slopes

Meiji Ryu, Yuzo Ohnishi, Satoshi Nishiyama, Takumi Nakai, D. H. Lee, J. H. Wu

Research output: Contribution to journalArticle

Abstract

We have studied the slope monitoring method using digital vision metrology. This study developed a technique for measuring the deformation of a slope without setting any fiducial points. The method of simply obtaining initial approximations of coordinate values from the images is applied to the new measurement technique. This measurement method has the advantage of obtaining the three coordinates of many measurement points at cheap cost. In this paper, the precision of the measurement values obtained by the proposed technology is verified in the actual rock slope. The feasibility based on the experimental results to the design of countermeasure construction is discussed.

Original languageEnglish
Pages (from-to)141-150
Number of pages10
JournalJournal of the Chinese Institute of Civil and Hydraulic Engineering
Volume22
Issue number2
Publication statusPublished - Jun 1 2010
Externally publishedYes

Keywords

  • Bundle adjustment with self calibration
  • Centroid
  • Collinearity condition
  • Digital vision metrology
  • Exterior orientations

ASJC Scopus subject areas

  • Civil and Structural Engineering

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