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Recent developments in a vision-based surface strain measurement system

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Abstract

The vision-based measurement method is capable of determining three-dimensional (3-D) coordinates of all the intersecting points of a square grid pattern located on the surfaceof a deformed sheet-metal part. These 3-D coordinates are used to determine the surface strau]n over the area. To measure the coordinates of such a surface, multiple video photographs are usually taken over the measurement area. Methods to improve the overall accuracy of the vision-based strau]n measurement system are outlined and the possible ultimate accuracy that can be attau]ned by the use of such a measurement method is discussed.

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References

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Authors and Affiliations

  1. CamSys, India

    D. W. Manthey B.S. (product development engineer)

  2. Rensselaer Polytechnic Institute, USA

    D. Lee Sc.D. (professor of mechanical engineering, member of TMS)

Authors
  1. D. W. Manthey B.S.
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  2. D. Lee Sc.D.
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Manthey, D.W., Lee, D. Recent developments in a vision-based surface strain measurement system. JOM 47, 46–49 (1995). https://doi.org/10.1007/BF03221231

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  • DOI: https://doi.org/10.1007/BF03221231

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