A mesh-based framework is developed by extending global stereocorrelation techniques to faceted surfaces with three-noded elements. A two-step self-calibration procedure is followed to determine the projection matrices of the stereo-rig and to update the nominal surface model to match the surface of interest. To prove the feasibility of mesh-based stereocorrelation, two different test parts are analyzed with the present techniques and compared to already validated optical procedures. Keywords Calibration • DIC • finite element discretization • photogrammetry • stereocorrelation 1 Introduction Geometries of manufactured parts are designed to fulfil functional requirements such as assembly constraints and fatigue life. It is therefore essential to directly control the manufacturing process.

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