Srikar Gemaraju,Kiran Kumar Yadav Aerra,Suresh Gamini, Phaneendra Kumar Kopparthi, Bhaskara Rao Pathakokila,




Digital image correlation,Displacement,Strain, Error,


In the earlier days, the displacement and strain were being measured by conventional techniques. The most useful and efficient tool put in practice with the implementation of advances in technology to measure displacements and strains on the region of interest of the object is full field optical measurement technique. This technique is a non-contact optical method known as digital image correlation (DIC), which compares the images captured before and after deformation and stores in a computer for the measurement of displacements and strains.These can be determined considering the displacement of speckles deposited on the surface of object. In this paper, the two-dimensional digital image correlation (2D-DIC) and three-dimensional digital image correlation (3D-DIC) are presented and its fundamental concepts are discussed.


I. S.W. Khoo, S. Karuppanan, C. Tan, “A review of surface deformation and strain measurement using two-dimensional digital image correlation”, Metrology and Measurement Systems,Vol 23 (3), 461-480, 2016
II. M.A. Sutton, J. Orteu, H.W. Schreier, “Image correlation for shape, motion and deformation measurements”, Basic concepts, Theory and Applications. Springer-2009
III. N.R. Kolanu and M. Ramji, “Material characterization of Al-2014 T6 alloy using 3D digital image correlation technique”, International Journal of Innovation & Research, 1-8, 2014
IV. B. Pan, K. Qian, H. Xie, A. Asundi, “Two-dimensional digital image correlation for in-plane displacement and strain measurement: a review”, Measurement Science and Technology, 20, 1-17, 2009
V. F. Hild and S. Roux, “Digital image correlation: from displacement measurement to identification of elastic properties –a review”, Strain, 42: 69-80, 2006
VI. M.A. Sutton, S.R. McNeill, J. Jang, M. Babai, “Effects of sub-pixel image restoration on digital correlation error estimates”, Optical Engineering, 27, 870-877, 1988
VII. H.W. Schreier, J.R. Braasch, M.A. Sutton, “Systematic errors in digital image correlation caused by intensity interpolation”, Optical Engineering, 3, 2915-2921, 2000
VIII. D.J. Chen, F.P. Chiang, Y.S. Tan, H.S. Don, “Digital speckle-displacement measurement using a complex spectrum method”, Applied Optics, 32, 1839-1849, 1993
IX. M. Sjodahl and L.R. Benckert, “Electronic speckle photography: analysis of an algorithm giving the displacement with sub-pixel accuracy,” Applied Optics, 32, 2278-2284, 1993
X. P. Bing, X. Hui-min, X. Bo-qin, D. Fu-long, “Performance of sub-pixel registration algorithms in digital image correlation”, Measurement Science and Technology, 17(6), 1615-21, 2006
XI. B.C. Wattrisse, A. Muracciole, J.M. Nemoz-Gaillard, “Analysis of strain localization during tensile tests bydigital image correlation”, Experimental Mechanics, 41, 29-39, 2001
XII. B. Pan, H.M. Xie, Z.Q. Guo, T. Hua, “Full-field strain measurement using a two-dimensional Savitzky-Golaydigital differentiator in digital image correlation”, Optical Engineering, 46(3), 33601-33610, 2007
XIII. B. Pan, A. Asundi, H.M. Xie, J.X. Gao, “Digital image correlation using iterative least squares and pointwise least squares for displacement field and strain field measurements,” Optics and Lasers in Engineering, 47 (7), 865-874, 2009
XIV. H. Haddadi and S. Belhabib, “Use of rigid-body motion for the investigation and estimation of the measurement errors related to digital image correlation technique”, Optics and Lasers in Engineering, 46, 185-96, 2007
XV. W.H. Peters and W.F. Ranson, “Digital imaging techniques in experimental stress analysis”, Optical Engineering, 21 (3), 427-431, 1982
XVI. B.K. Bay, T.S. Smith, D.P. Fyhrie, M. Saad, “Digital volume correlation: three-dimensional strain mapping using x-ray tomography”, Experimental Mechanics, 39, 217-26, 1999
XVII. T.S. Smith, B.K. Bay, M.M. Rashid, “Digital volume correlation including rotational degrees of freedom during minimization”, Experimental Mechanics, 42, 272-278, 2002
XVIII. A.S. Michael, “Digital image correlation for shape and deformation measurements”, Part C, Non-contact methods, 565-600, 2008

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