The acquisition of high-resolution, real-time three-dimensional surface data of dynamically
moving objects has large applicability in many fields. When additional restrictions such as …

Deflectometry as a technique to assess reflective surfaces has now existed for some 40
years. Its different aspects and variations have been studied in multiple theses and research …

A novel dual-frequency pattern is developed which combines a high-frequency sinusoid
component with a unit-frequency sinusoid component, where the high-frequency component …

A recently proposed phase coding method for absolute phase retrieval performs well
because its codeword is embedded into phase domain rather than intensity. Then, the …

Fringe projection profilometry (FPP) has been extensively studied in the field of three-
dimensional (3D) measurement. Although FPP always uses high-frequency fringes to …

Fringe projection profilometry has become a widely used method in 3D shape measurement
and 3D data acquisition for the features of flexibility, noncontactness, and high accuracy. By …

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 …

In this paper, we first propose a quantitative indicator to measure the amount of prior
information contained in the wrapped phase map. Then, Edge-Enhanced Self-Attention …

Fringe projection profilometry has become one of the most popular 3D information
acquisition techniques being developed over the past three decades. However, the general …

Here we describe a 2-step temporal phase unwrap** formula that uses 2-sensitivity
demodulated phases for measuring static surfaces. The first phase demodulation has at …