DETECTION OF BUGHOLES OF TUNNEL LINING CONCRETE BY USING THE IMAGE WITH COLOR FILTERS

Quality evaluation of concrete surface is generally performed by visual inspection, hence the results depend on the knowledge and experiences of the inspector. The foci of this study are to detect bugholes in detail and to quantify the surface quality of tunnel lining concrete. In this study, color filters were used to emphasize the bugholes in the colored image. To examine the effect of the novel image analysis, the experimental study conducted photo-shooting test at a laboratory and two fields of tunnel construction site. The accuracy of image analysis to detect bugholes was improved by using a kind of color filter.

Language

  • English
  • Japanese

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Filing Info

  • Accession Number: 01838774
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Mar 16 2022 10:22AM