1 May 2007 High-speed digital image correlation: error estimations and applications
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Optical Engineering, 46(5), 051004 (2007). doi:10.1117/1.2741217
Abstract
Among the different optical measurement techniques for full-field analysis of displacements and strains, digital image correlation (DIC) has proven to be very flexible, robust, and easy to use, covering a wide range of different applications. DIC measurement results, among others, are influenced by the systematic errors of the measurements system, a major source of which is due to imaging system calibration. We present a 3-D DIC system that provides online error information concerning diverse error sources, and even more important, the propagation of errors throughout the calculations to the resulting contours, displacements, and strains. On the basis of this system we discuss error sources, error propagation, and the impact on correlation results. Performance tests for studying the impact of calibration errors on the resulting data are shown for static and dynamic applications.
Thorsten Siebert, Thomas Becker, Karsten Splitthof, Isabell Neumann, René Krupka, "High-speed digital image correlation: error estimations and applications," Optical Engineering 46(5), 051004 (1 May 2007). http://dx.doi.org/10.1117/1.2741217
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KEYWORDS
Error analysis

Digital image correlation

Cameras

Calibration

Imaging systems

3D image processing

Optical engineering

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