With the advances in scientific foundations and technological implementations, optical
metrology has become versatile problem-solving backbones in manufacturing, fundamental …

The principle of structured light and triangulation is used in a wide range of 3D optical
metrology applications, such as mechanical engineering, industrial monitoring, computer …

Fringe projection profilometry is a well-established technique for optical 3D shape
measurement. However, in many applications, it is desirable to make 3D measurements at …

In optical metrology, fringe projection is considered to be one of the most reliable techniques
for recovering the shape of objects. For this technique, however, it is challenging to measure …

How to obtain object information as rich as possible, with the highest possible speed and
accuracy from recorded optical signals, has been a crucial issue to the pursuit of powerful …

For fringe projection profilometry (FPP), phase extraction accuracy determines three-
dimensional (3D) measurement precision. The combination of phase-shifting (PS) and multi …

Temporal phase unwrapping (TPU) is an essential algorithm in fringe projection profilometry
(FPP), especially when measuring complex objects with discontinuities and isolated …

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 this paper, we propose a high-speed three-dimensional (3-D) shape measurement
technique for dynamic scenes using geometry-constraint-based number-theoretical phase …

A new real-time 3D measurement method was developed using new background-
modulated modified Fourier transform profilometry (FTP) fringe patterns and geometry …