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Advancement of Optical Methods in Experimental Mechanics, Volume 3 pp 315–324Cite as

Three-Dimensional Digital Image Correlation Using a Single Color-Camera

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Abstract

Three-dimensional Digital Image Correlation is typically done using two cameras that view the measured object from differing oblique directions. The measured images are independent and must be spatially connected using a detailed calibration procedure. This places a large demand on the practitioner, the optical equipment and the computational method. A novel approach is presented here where a single color-camera is used in place of multiple monochrome cameras. The color-camera measures three independent Red-Green-Blue (RGB) color-coded images. This feature greatly reduces the scale of the required system calibrations and spatial computations because the color images are physically aligned on the camera sensor. Out-of-plane information is obtained by triangulation using oblique illumination from separate colored light sources. The 3-D Digital Image Correlation is completed by combining the 2-D correlations for each RGB color. An example apparatus is described and some typical results are presented.

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Acknowledgments

This work was financially supported by grants from the Natural Sciences and Engineering Research Council of Canada (NSERC), American Stress Technologies, Inc., Pittsburgh, PA, and The Institute for Computing, Information and Cognitive Systems (ICICS), Vancouver, Canada.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of British Columbia, Vancouver, BC, Canada

    Wade Gubbels & Gary S. Schajer

Authors
  1. Wade Gubbels
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  2. Gary S. Schajer
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Corresponding author

Correspondence to Gary S. Schajer .

Editor information

Editors and Affiliations

  1. Sandia National Laboratories, Livermore, USA

    Helena Jin

  2. Illinois Institute of Technology, Chicago, Illinois, USA

    Cesar Sciammarella

  3. Southeastern Louisiana University, Hammond, USA

    Sanichiro Yoshida

  4. Bari, Italy

    Luciano Lamberti

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© 2015 The Society for Experimental Mechanics, Inc.

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Gubbels, W., Schajer, G.S. (2015). Three-Dimensional Digital Image Correlation Using a Single Color-Camera. In: Jin, H., Sciammarella, C., Yoshida, S., Lamberti, L. (eds) Advancement of Optical Methods in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-06986-9_36

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  • DOI: https://doi.org/10.1007/978-3-319-06986-9_36

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-06985-2

  • Online ISBN: 978-3-319-06986-9

  • eBook Packages: EngineeringEngineering (R0)

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