Semi-automatic deflection measurement using digital image correlation

Sundla, S.; Punning, A.; Aabloo, A.; Anbarjafari, G. (2015). Semi-automatic deflection measurement using digital image correlation. 2015 19th International Conference on System Theory, Control and Computing, ICSTCC 2015 - Joint Conference SINTES 19, SACCS 15, SIMSIS 19. IEEE, 325−330.10.1109/ICSTCC.2015.7321314.
publitseeritud konverentsiettekanne
Sundla, S.; Punning, A.; Aabloo, A.; Anbarjafari, G.
  • Inglise
2015 19th International Conference on System Theory, Control and Computing, ICSTCC 2015 - Joint Conference SINTES 19, SACCS 15, SIMSIS 19
IEEE
9781479984817
2015
325330
Ilmunud
3.1. Artiklid/peatükid lisas loetletud kirjastuste välja antud kogumikes (kaasa arvatud Thomson Reuters Book Citation Index, Thomson Reuters Conference Proceedings Citation Index, Scopus refereeritud kogumikud)

Viited terviktekstile

dx.doi.org/10.1109/ICSTCC.2015.7321314

Seotud asutused

University of Tartu; University of Tartu

Lisainfo

© 2015 IEEE. In this paper an easy-to-use approach using cubic spline interpolation is proposed for providing initial estimations for digital image correlation (DIC) grid point locations and rotations on objects with major deflection. One of the main problems in using DIC for deflection measurements is that direct correlation fails since image sample rotations can differ considerably across two images. The proposed method uses manually chosen reference points to create a spline that describes deflection. Curve geometries are then taken into account when calculating initial guesses for DIC grid points. When the expected rotation is known at any given point image samples can be rotated prior correlation and matches can be found. The validity and accuracy is demonstrated through a series of tests.
Cubic Spline Interpolation | Deflection Measurement | Digital Image Correlation