Abstract
To address the limitations of conventional stereo-digital image correlation (DIC) on measuring complex objects, a continuous-view multi-camera DIC (MC-DIC) system and its two forms of camera arrangement are introduced. Multiple cameras with certain overlapping field of view are calibrated simultaneously to form an overall system for measuring the continuous full-surface deformation. The bending experiment of coral aggregate concrete beam and the axial compression experiment of timber column are conducted to verify the capability of continuous-view MC-DIC in deformation measurement of civil components with large slenderness ratio and large curvature, respectively. The obtained deformation data maintain good consistency with the displacement transducer and strain gauge. Results indicate that the continuous-view MC-DIC is a reliable 3D full-field measurement approach in civil measurements.
Funder
Natural Science Foundation of Anhui Province
Doctoral Start-up Fund of Anhui Jianzhu University
National Natural Science Foundation of China
Subject
General Materials Science
Reference51 articles.
1. Digital Imaging Techniques In Experimental Stress Analysis
2. Determination of displacements using an improved digital correlation method
3. Multiple View Geometry in Computer Vision;Hartley,2004
4. 3-D computer vision in experimental mechanics
5. Image Correlation for Shape, Motion and Deformation Measurements-Basic Concepts, Theory and Applications;Sutton,2009
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