Pixel-level robust digital image correlation.

  title={Pixel-level robust digital image correlation.},
  author={Corneliu Cofaru and Wilfried Philips and Wim van Paepegem},
  journal={Optics express},
  volume={21 24},
Digital Image Correlation (DIC) is a well-established non-contact optical metrology method. It employs digital image analysis to extract the full-field displacements and strains that occur in objects subjected to external stresses. Despite recent DIC progress, many problematic areas which greatly affect accuracy and that can seldomly be avoided, received very little attention. Problems posed by the presence of sharp displacement discontinuities, reflections, object borders or edges can be… CONTINUE READING

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