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http://dx.doi.org/10.22704/ksee.2020.38.2.001

Design and Verification of 3D Digital Image Correlation Systems for Measurement of Large Object Displacement Using Stereo Camera  

Ko, Younghun (한국건설기술연구원 지하공간안전연구센터)
Seo, Seunghwan (한국건설기술연구원 지하공간안전연구센터)
Lim, Hyunsung (한국건설기술연구원 지하공간안전연구센터)
Jin, Tailie (오엠에이곰 유한회사)
Chung, Moonkyung (한국건설기술연구원 지하공간안전연구센터)
Publication Information
Explosives and Blasting / v.38, no.2, 2020 , pp. 1-12 More about this Journal
Abstract
Digital Image Correlation is a well-established method for displacements, strains and shape measurements of engineering objects. Stereo-camera 3D Digital Image Correlation (3D-DIC) systems have been developed to match the specific requirements for measurements posed by material and mechanical industries. Although DIC method provides the capabilities of scaling a field-of-view(FOV), dimensions of Geotechnical structure objects in many cases are too big to be measured with DIC based on a single camera pair. It can be the most important issue with applying 3D DIC to the measurement of Geotechnical structures. In this paper, We were present stereo vision conditions in a 3D DIC system that can be measured for large FOV(30×20m) and high precisions(z-displacement 0.5mm) of the ground objects with Stereo-camera DIC systems.
Keywords
Digital Image Correlation(DIC); Streo-camera; Field of View(FOV); Displacement; Geotechnical structure;
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