3D surface measurement using uni-axis image fiber system (3rd report)

抄録

Previously a Uni-axis image guide fiber system to reconstruct the surface of reflective objects was presented. The surface variation of the samples is retrieved by using fringe contrast modulation and the technique takes into account the defocus change and the encoding information on the fringe contrast of the projected structured light pattern. In the second part, we implement a 2D Fourier Transform filter for remove the baseline information for increasing the fringes contrast and also we improved the fitting function for better results in the 3D reconstruction. In the third part, we made a result comparison of our system with a commercial microscope. The depth range of the system is 1.1 mm and a lateral range of 2 mm by 2 mm. We demonstrate the technique by showing the surface profile of a measured object.