Fig. 6.

Validation of the results of three-dimensional (3-D) displacement measurements versus a documented method:²³ (a) displacement components along $x$, $y$, and $z$ obtained using MHS; and (b) displacement components along $x$, $y$, and $z$ obtained with the method of repetitive holographic interferometry. $ℝ$ is the Pearson correlation coefficient between the results obtained with the two methods.