3D surface reconstruction scheme for dynamic objects: Principle and implementation

J Wang, Y Yang - Measurement, 2022 - Elsevier
This paper introduces a high-speed, low-cost and easy-to-implement three dimensional (3D)
surface measurement approach for dynamic objects. First, we proposed a new dual …

Multi-anchor spatial phase unwrapping for fringe projection profilometry

S Xiang, Y Yang, H Deng, J Wu, L Yu - Optics express, 2019 - opg.optica.org
Phase unwrapping is a necessary step in fringe-projection profilometry that produces
accurate depth maps. However, the original wrapped phase is often corrupted by errors, and …

[HTML][HTML] 3D surface reconstruction of small height object based on thin structured light scanning

J Liu, Y Wang - Micron, 2021 - Elsevier
Aiming at the problem of 3D surface reconstruction of small height objects, a method based
on the scanning principle with thin structured light is proposed. The laser fringe is produced …

An improved circular fringe fourier transform profilometry

Q Chen, M Han, Y Wang, W Chen - Sensors, 2022 - mdpi.com
Circular fringe projection profilometry (CFPP), as a branch of carrier fringe projection
profilometry, has attracted research interest in recent years. Circular fringe Fourier transform …

Improve temporal Fourier transform profilometry for complex dynamic three-dimensional shape measurement

Y Liu, Q Zhang, H Zhang, Z Wu, W Chen - Sensors, 2020 - mdpi.com
The high-speed three-dimensional (3-D) shape measurement technique has become more
and more popular recently, because of the strong demand for dynamic scene measurement …

3D shape measurement based on the unequal-period combination of shifting Gray code and dual-frequency phase-shifting fringes

S Yu, T Gong, H Wu, X Sun, Y Zhao, S Wu, X Yu - Optics Communications, 2022 - Elsevier
The combination of Gray code and phase-shifting fringes is widely used in the 3D structured
light measurement. However, an error in the period order of the phase-shifting fringe …

3-D surface profilometry based on modulation measurement by applying wavelet transform method

M Zhong, F Chen, C Xiao, Y Wei - Optics and Lasers in Engineering, 2017 - Elsevier
A new analysis of 3-D surface profilometry based on modulation measurement technique by
the application of Wavelet Transform method is proposed. As a tool excelling for its multi …

Robust method to process nonuniform intensity holograms in digital holographic microscopy for nanoscale surface metrology

SK Narayan, D Pandey, AVS Vithin, R Gannavarpu - Applied Optics, 2023 - opg.optica.org
In this work, we propose a method based on nonlinear optimization to process holograms
corrupted with nonuniform intensity fluctuations in digital holographic microscopy. Our …

Robust single-shot fringe projection profilometry based on morphological component analysis

DPK Lun, YH Chan - IEEE Transactions on Image …, 2018 - ieeexplore.ieee.org
In a fringe projection profilometry (FPP) process, the captured fringe images can be modeled
as the superimposition of the projected fringe patterns on the texture of the objects …

Automatic fringe enhancement with novel bidimensional sinusoids-assisted empirical mode decomposition

C Wang, Q Kemao, F Da - Optics express, 2017 - opg.optica.org
Fringe-based optical measurement techniques require reliable fringe analysis methods,
where empirical mode decomposition (EMD) is an outstanding one due to its ability of …