Phase-shifting profilometry combined with gray-code patterns projection: unwrapping error removal by an adaptive median filter

D Zheng, F Da, Q Kemao, HS Seah - Optics express, 2017 - opg.optica.org
Phase-shifting profilometry combined with Gray-code patterns projection has been widely
used for 3D measurement. In this technique, a phase-shifting algorithm is used to calculate …