| Abstract: | A simple, fast and accurate method for 3-D object profilometry is proposed and verified by simulation and experiment. The profilometry method is based on the principle that the height data of a measured object can be obtained from the relevant fringe displacement, which in turn can be obtained by determining the precise position of the fringe center on the reference plane and on the object's surface. With the aid of a fringe skeleton extraction technique, the 3-D information can be acquired even from those images in which some fringes are squeezed, interrupted or shadowed. |
