Fig. 4

Overview of the experimental setup with the four cameras of the Digital Image Correlation system (A), framing the specimen mounted in the testing machine (B). The zoomed detail of the specimen surface shows the white random speckle pattern sprayed on all the surface of the vertebrae and of the intervertebral discs (C). Figure published on Figshare (https://doi.org/10.6084/m9.figshare.25823893).