A DIC-assisted fringe projection profilometry for high-speed 3D shape, displacement and deformation measurement of textured surfaces

•Our recently proposed robust and high-efficiency 3D shape measurement method based on Gray codes is adopted as the base technique for the proposed DIC-assisted FPP. This base system is able to obtain a new 3D result of discontinuous textured surfaces with every four projected patterns, which efficiently provides the fundamental 3D coordinate information of the measured object for further displacement or deformation calculation at a frame rate of 542 fps.•The modulation-based, robust and high-quality texture map extraction method is proposed to avoid the influence by the variation of ambient light.•We further propose to use the obtained texture map to accurately and reliably match surface points at different time instants using DIC, which can realize the full-field 2D points tracking with sub-pixel accuracy.•The simultaneous 3D displacement or deformation is calculated for the corresponding 2D points at different time instants, which is more reasonable than those at the same pixel location but may no longer corresponded due to in-plane object displacement or deformation.