Noncontact, high-precision, high-speed optical 3D sensing, which is based on structured light projection, has been widely used since being presented in 1980's. It is mainly used to measure complex 3D object with diffuse-reflected surface. On the other hand, the interferometry as a high-precision technique has been widely used to detect optical surface. But almost all interferometers require a coherent illumination, a precise and complex mechanical system, and almost all are expansive. Therefore, the further...