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A Meshless Global DIC Approach

Antonio Baldi,Filippo Bertolino

Advancement of Optical Methods in Experimental Mechanics, Volume 3 Conference Proceedings of the Society for Experimental Mechanics Series（2016）

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Abstract
The formulation of global Digital Image Correlation (DIC) is almost identical to standard (i.e. subset-based) DIC: indeed, in both cases the solution algorithm tries to minimize the error between the reference and test image by adjusting the shape-function-controlling parameters, but in the former, a modification of the parameters affects the displacement field globally, whereas in standard DIC the modification is local.
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Key words
Global DIC,Digital Image Correlation (DIC),Global Displacement Field,Local Least-squares Fit,Segment Description
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