摘要
Three conic calibration targets (CCTs) were designed and implemented for three-dimensional (3D) digital image correlation (DIC) camera calibration. To understand the associated performance of CCTs and the potential problems while using CCTs to determine the camera parameters, in this paper, the CCTs image data and the corresponding spatial distance were first utilized to determine the camera parameters, and then the 3D CCT object was reconstructed with the same images and the determined camera parameters of different camera-pairs from different viewing directions. Based on the calculated deviations of the overlapping regions of the reconstructed 3D CCTs, it is clear that the proposed CCTs can be used for determining the camera parameters.