TY - JOUR
T1 - Multi-demodulation phase-shifting and intensity pattern projection profilometry
AU - Juarez-Salazar, Rigoberto
AU - Martinez-Laguna, Juana
AU - Diaz-Ramirez, Victor H.
N1 - Publisher Copyright:
© 2020
PY - 2020/6
Y1 - 2020/6
N2 - Phase-shifting is a powerful phase demodulation method for three-dimensional imaging by fringe projection. However, numerous fringe patterns, which encode a single-phase function, are required. In this paper, the use of intensity patterns, which encode multiple phase functions, is proposed. A multi-demodulation phase-shifting algorithm and the intensity pattern projection profilometry approach are developed. A computer simulation and an experimental three-dimensional object measurement are performed to validate the proposal and demonstrate its effectiveness. The results exhibit that a similar accuracy than conventional fringe projection is achieved while using a reduced number of patterns. The proposed approach is a feasible alternative to increase the efficiency of three-dimensional imaging systems based on phase-shifting.
AB - Phase-shifting is a powerful phase demodulation method for three-dimensional imaging by fringe projection. However, numerous fringe patterns, which encode a single-phase function, are required. In this paper, the use of intensity patterns, which encode multiple phase functions, is proposed. A multi-demodulation phase-shifting algorithm and the intensity pattern projection profilometry approach are developed. A computer simulation and an experimental three-dimensional object measurement are performed to validate the proposal and demonstrate its effectiveness. The results exhibit that a similar accuracy than conventional fringe projection is achieved while using a reduced number of patterns. The proposed approach is a feasible alternative to increase the efficiency of three-dimensional imaging systems based on phase-shifting.
KW - Absolute phase demodulation
KW - Fringe projection profilometry
KW - Intensity pattern projection
KW - Multiple phase-shifting
KW - Three-dimensional surface imaging
UR - http://www.scopus.com/inward/record.url?scp=85081036732&partnerID=8YFLogxK
U2 - 10.1016/j.optlaseng.2020.106085
DO - 10.1016/j.optlaseng.2020.106085
M3 - Artículo
SN - 0143-8166
VL - 129
JO - Optics and Lasers in Engineering
JF - Optics and Lasers in Engineering
M1 - 106085
ER -