A method for full field 3-D surface reconstruction is proposed. The method is based on shadow moire topography and makes use of four contourograms shifted in phase by translating the object. The implementation of the method in a fully automated apparatus is described. Some application examples are given. 1.
Joris J.J. Dirckx,
Willem F. Decraemer,
"Automated 3-D surface-shaped measurement based on phase-shift moire", Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); doi: 10.1117/12.34737; https://doi.org/10.1117/12.34737