Fascinated by the marvelous work that Professor Jim Wyant has done in both academy and
industry, I decided to pursue a career in the field of 3D optical metrology in my early …

This paper compares the active and passive projector nonlinear gamma compensation
methods for phase error reduction. The active method modifies fringe patterns before their …

Phase-shifting profilometry (PSP) is a method used to establish the pixel correspondence
between a projector and a camera using phase-shifting fringe patterns. Due to the nonlinear …

For three-dimensional shape measurement, phase-shifting techniques are widely used to
recover the objective phase containing height information from images of projected fringes …

Phase measuring profilometry (PMP) has the highest measuring accuracy among structured
light projection-based three-dimensional (3D) sensing methods. Due to their low-cost and …

Achieving high-quality surface profiles under strong ambient light is challenging in fringe
projection profilometry (FPP) since ambient light inhibits functional illumination from …

Due to the nonlinear response of digital phase-shifting profilometry (PSP), phase errors are
inevitable in the retrieved 3-D profiles and result in negative impacts on the measurement …

In non-digital projection systems, the inaccuracy of phase shifts is one of the most important
nonlinear errors. In this paper, an efficient and universal compensation algorithm is …

The time-dependent phase error induced by the instability of projection light source (IPLS) is
systematically studied for phase-shifting profilometry (PSP). The IPLS of the projection …

In the measurement of transparent planar element using deflectometry, the fringe patterns
reflected off the double surfaces of transparent planar element are superimposed on the …