3D Reconstruction Based On Pair Camera and Projector with Sub-Pixel Accuracy

In this paper, 3D reconstruction is done by using fringe projection profilometry (FPP). Fringe pattern is analyzed by using inverse function analysis (IFA) that is mathematically prove to improve accuracy compare to traditional methods. However, it known that IFA applied polynomial fittings which suffer from Runge phenomenon due to high degree polynomial used. Thus, this paper will introduce spline fitting in IFA method for 3D reconstruction to avoid Runge phenomenon. Thus, simulation by using MATLAB will be done to prove the ability of this method to produce 3D reconstruction with better accuracy compare to normal IFA.