A random phase shift atgorithm based on the principLe of phase-measuring profiLometry with a projected sinusoidaL grating to 360 measurement-of the surface topography of 3-D diffuse objects is presented. In contrast to phase shifting interferometry this method eLiminates the needs of vibration isoLation thus an on-Line or in-process amasurement could be executed. 1.
Ching-Piao Hu, Ching-Piao Hu,
"360° phase-measuring profilometry of 3-D diffuse objects using random phase shift algorithm", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); doi: 10.1117/12.34747; https://doi.org/10.1117/12.34747