Since the early 1970s, optical two-wavelength phase-metrology (TWPM) has been used in a
wide variety of experimental set ups. In TWPM one may compute the phase-sum and the …

Calibration of the relationship between height and phase is of uttermost importance to
perform accurate 3D measurements in phase measurement profilometry. This work reports a …

For fringe projection profilometry (FPP), the combination of phase-shifting profilometry (PSP)
and multi-frequency temporal phase unwrapping (MFTPU) is a phase extraction scheme …

In optical measurement techniques, when the projector works at a constant projection rate,
reducing the number of projected fringe patterns is an effective way to reduce the projection …

A direct phase-to-height mapping algorithm for phase-measuring profilometry is presented
and verified by experiments. The direct mapping formula can be generated by measuring …

This Letter investigates the effects of different phase-shifting algorithms on the quality of high-
resolution three-dimensional (3-D) profilometry produced with nearly focused binary …

This paper presents an analysis of error compensation using a newly modified two-step
triangular-pattern phase-shifting measurement method, developed to reduce periodic …

A spatiotemporal phase-unwrapping method is presented that combines the dynamic fringe-
projection method and the phase-shifting technique and extends the phase-unwrapping …

Fringe projection profilometry using the phase-shifting technique enables high-precision,
high-speed and flexible measurements. Among them, the two-step phase-shifting method …

Phase shifting profilometry (PSP) using binary fringe patterns with projector defocusing is
widely used for high-speed three-dimensional (3D) shape measurement. In this technique …