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 …

In fringe projection profilometry (FPP), temporal phase unwrapping is an essential
procedure to recover an unambiguous absolute phase even in the presence of large …

Two-frequency phase-shifting phase unwrapping and Gray-coded-based phase unwrapping
are two typical temporal phase unwrapping methods to recover discontinuous or spatially …

During recent years, the use of fringe projection techniques for generating three-
dimensional (3D) surface information has become one of the most active research areas in …

We first provide an overview of 3-D shape measurement using various optical methods.
Then we focus on structured light techniques where various optical configurations, image …

Large components are widely used in aerospace, shipbuilding, automobile, and other fields.
The accuracy of three-dimension (3D) measurement is an important standard to measure …

Fringe projection profilometry has been increasingly sought and applied in dynamic three-
dimensional (3D) shape measurement. In this work, a robust, high-efficiency 3D …

Phase unwrapping algorithm plays very important role in noncontract optical profilometry,
beacuse the phase map acquired derectly is limited from π to− π, which is called wrapped …

The field of optical metrology offers a wealth of both practical and theoretical
accomplishments, and can cite any number of academic papers recording such. However …