Digital Image Correlation
Digital image correlation (DIC) is an optical non-contact method to measure 3D coordinates for the evaluation of 3D surfaces, 3D motion and deformation. Stochastic patterns and/or point markers are utilized to describe discrete image areas, which can be determined with subpixel accuracy by analyzing the image information. With this principle, point-wise and full-field measuring results are created and used for a wide range of applications in materials research and component testing to determine the static and dynamic behavior of specimens, such as displacements and strain. Thus, DIC enables an analytical investigation of the complex behavior of any test object.