Abstract
Endoscopes are imaging tools utilized to observe objects in confined volumes. However, endoscopic imaging is qualitative, and only specific methods allow corresponding quantitative imaging under such conditions. This paper reports our progress in incorporating endoscopic imaging with digital image correlation (DIC) to perform high-speed quantitative measurements of shapes and displacements. A high-speed camera with a maximum framerate of two million per second is set up in an endoscopic configuration for 2D DIC measurements. Measurements are first verified against the displacements of a manual translation with a micrometer resolution. Then the system is applied in order to study the transient response of a piezoelectric actuator via step response. These results allow for the characterization and identification of the measuring challenges observed when performing high-speed endoscopic DIC. In addition, this study explores the potential of incorporating endoscopes into DIC imaging systems and providing the preliminary testing parameters of future optical designs for both biological and industrial applications.
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References
Sutton, M.: Digital image correlation for shape and deformation measurements. In: Sharpe, W.N. (ed.) Springer Handbook of Experimental Solid Mechanics, pp. 565–600. Springer, Boston, MA (2008)
Chu, T., Ranson, W., Sutton, M.: Applications of digital-image-correlation techniques to experimental mechanics. Exp. Mech. 25, 232–244 (1985)
Razavi, P., Tang, H., Pooladvand, K., Furlong, C., Cheng, J.T., Ravicz, M.E., Remenschneider, A., Rosowski, J.J., Furlong, C.: Application of high-speed DIC to study damage of thin membranes under blast. In: Submitted to SEM 75th, Greenville, SC (2018)
Reu, P.L.: Digital image correlation through a rigid borescope. In: Optical Measurements, Modeling, and Metrology, vol. 5, pp. 141–145. Springer, New York, NY (2011)
Blaber, J., Adair, B., Antoniou, A.: Ncorr: open-source 2D digital image correlation matlab software. Exp. Mech. 55, 1105–1122 (2015)
Bing, P., Kemao, Q., Huimin, X., Anand, A.: Two-dimensional digital image correlation for in-plane displacement and strain measurement: a review. Meas. Sci. Technol. 20, 062001 (2009)
Bruck, H., McNeill, S., Sutton, M., Peters III, W.: Digital image correlation using Newton-Raphson method of partial differential correction. Exp. Mech. 3, 261–267 (1989)
Zhang, Z.: A flexible new technique for camera calibration. IEEE Trans. Pattern Anal. Mach. Intell. 22(11), 1330–1334 (2000)
Heikkila, J., Silven, O.: A four-step camera calibration procedure with implicit image correction. IEEE Int. Conf. Comput. Vis. Pattern Recognit., pp. 1106–1112 (1997)
Luo, P., Wu, J.: Easy calibration technique for stereo vision using a circle grid. Opt. Eng. 47, 033607–1-033607-10 (2008)
Razavi, P., Tang, H, Maftoon, N., Furlong, C., Cheng, J.T., Rosowski, J.: High-speed shape and transient response measurements of tympanic membrane. In: SEM XV International Congress and Exposition on Experimental and Applied Mechanics, Greenville SC (2018)
Acknowledgments
This work has been supported by National Institute on Deafness and other Communications Disorders (NIDCD) and has been partially supported by NSF award CMMI-1428921. We would also like to gratefully acknowledge the support of the Mechanical Engineering Department at the Worcester Polytechnic Institute (WPI) and the contributions by other members of the CHSLT and MEE.
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Tang, H., Pooladvand, K., Razavi, P., Rosowski, J.J., Cheng, J.T., Furlong, C. (2019). High-Speed Digital Image Correlation for Endoscopy: A Feasibility Study. In: Lamberti, L., Lin, MT., Furlong, C., Sciammarella, C., Reu, P., Sutton, M. (eds) Advancement of Optical Methods & Digital Image Correlation in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-97481-1_34
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DOI: https://doi.org/10.1007/978-3-319-97481-1_34
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