Profile measurement of non-Lambertian surfaces by integrating fringe projection profilometry with near-field photometric stereo

Fringe projection profilometry (FPP) performs poorly when measuring non-Lambertian surfaces, since the measured points are missing in specular regions. The existing solutions need to make a trade-off between precision and efficiency, because no extra information about specular regions is available. To tackle the specular reflection problem of FPP, this paper proposes a multi-sensor measurement method by integrating FPP with near-field...