Time-related monitoring of crack changes on concrete structures

H. G. Sohn, Y. M. Lim, G. H. Kim, M. H. Pi

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

Abstract

A major goal of this research is the automation of crack monitoring in concrete structures by quantifying the changes detected from the sequential images during monitoring period. The periodic image series for monitoring are taken using a precise metric camera. This task is based on the idea that one can derive information about the change strictly from its imagery once the geometric relationship between data sets is correctly recovered. The goal is achieved by using the conformal transformation based on the Modified Iterated Hough Transform (MIHT) algorithm, the result of which solves the orientation parameters of the camera when the correspondence is not known. To improve the computational operation of MIHT, the optimum sequence and regions of parameter estimation are also investigated. The developed algorithm is applied to a simulated set of linear crack changes. Finally, the changes of cracks pattern occurred in the sequence of images of the actual concrete specimen are detected.

Original languageEnglish
Title of host publicationStructural Health Monitoring and Intelligent Infrastructure - Proceedings of the 1st International Conference on Structural Health Monitoring and Intelligent Infrastructure
Pages725-731
Number of pages7
Publication statusPublished - 2003 Dec 1
Event1st International Conference on Structural Health Monitoring and Intelligent Infrastructure, SHMII-1'2003 - Tokyo, Japan
Duration: 2003 Nov 132003 Nov 15

Publication series

NameStructural Health Monitoring and Intelligent Infrastructure - Proceedings of the 1st International Conference on Structural Health Monitoring and Intelligent Infrastructure
Volume1

Other

Other1st International Conference on Structural Health Monitoring and Intelligent Infrastructure, SHMII-1'2003
CountryJapan
CityTokyo
Period03/11/1303/11/15

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Architecture

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  • Cite this

    Sohn, H. G., Lim, Y. M., Kim, G. H., & Pi, M. H. (2003). Time-related monitoring of crack changes on concrete structures. In Structural Health Monitoring and Intelligent Infrastructure - Proceedings of the 1st International Conference on Structural Health Monitoring and Intelligent Infrastructure (pp. 725-731). (Structural Health Monitoring and Intelligent Infrastructure - Proceedings of the 1st International Conference on Structural Health Monitoring and Intelligent Infrastructure; Vol. 1).