A study on photogrammetric algorithm for crack width measurement

S. Nishiyama, T. Tsubosaka, T. Kikuchi, T. Yano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a study on the deveopment of digital image processing and photogrametric algorithm for crack behavior monitoring. In the measurement technique using our algorithm proposed here, the deformation of the crack is calculated from one piece of image taken from an arbitrary camera position. In our developed method, reflective targets are established at the measurement points around the crack as gauges and the two dimensional displacement of the crack width, which are tensile and shear displacement, is calculated based on the coordinates of the reflective targets. In this paper, experiments were performed to measure the relation between the distance and angle of photographic positions from the targets, and we verify the accuracy and precision of the measurement algorithm.

Original languageEnglish
Title of host publicationComputer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
PublisherTaylor and Francis - Balkema
Pages581-586
Number of pages6
ISBN (Print)9781138001480
DOIs
Publication statusPublished - Jan 1 2015
Event14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 - Kyoto, Japan
Duration: Sep 22 2014Sep 25 2014

Publication series

NameComputer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014

Other

Other14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
CountryJapan
CityKyoto
Period9/22/149/25/14

ASJC Scopus subject areas

  • Computer Science Applications
  • Geochemistry and Petrology

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    Nishiyama, S., Tsubosaka, T., Kikuchi, T., & Yano, T. (2015). A study on photogrammetric algorithm for crack width measurement. In Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (pp. 581-586). (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014). Taylor and Francis - Balkema. https://doi.org/10.1201/b17435-99