Fig. 8
From: Measuring acceleration fields via regularized digital image correlation
Acceleration fields along x at \(t=85~\upmu \)s. a Reference solution, b instantaneous DIC, c spatiotemporal DIC, d dynamically regularized DIC (\(\ell _D=75\) pixels). The spatiotemporal analysis with no dynamic regularization leads to lower nonphysical fluctuations (RMS difference 10 times lower than instantaneous DIC). Even closer results to the reference solution are obtained with dynamic regularization