[HTML][HTML] Two-frequency phase-shifting method vs. Gray-coded-based method in dynamic fringe projection profilometry: A comparative review

Z Wu, W Guo, Q Zhang - Optics and Lasers in Engineering, 2022 - Elsevier
Two-frequency phase-shifting phase unwrapping and Gray-coded-based phase unwrapping
are two typical temporal phase unwrapping methods to recover discontinuous or spatially …

[PDF][PDF] 基于相移条纹分析的实时三维成像技术发展综述

郭文博, 张启灿, 吴周杰 - Laser & Optoelectronics Progress, 2021 - researching.cn
摘要近年来, 客观世界和场景三维信息需求量的陡增, 促使结构光三维测量技术快速发展.
基于条纹投影和相移条纹分析的三维成像技术具有较好的精度和鲁棒性, 在众多的技术方法中 …

Nonlinear correction for fringe projection profilometry with shifted-phase histogram equalization

Y Wang, J Cai, D Zhang, X Chen… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
Fringe projection profilometry has been widely used for 3-D measurement, but the gamma
nonlinearity severely affects the accuracy. Ideally, the histogram of the undistorted phase is …

Spatial-temporal phase unwrapping algorithm for fringe projection profilometry

H An, Y Cao, H Wu, N Yang, C Xu, H Li - Optics express, 2021 - opg.optica.org
In this paper, a generalized spatial-temporal phase unwrapping algorithm (STPUA) is
proposed for extracting the absolute phase of the isolated objects with intricate surfaces …

Real-time motion-induced error compensation for 4-step phase-shifting profilometry

W Guo, Z Wu, Q Zhang, Y Wang - Optics Express, 2021 - opg.optica.org
Phase-shifting profilometry has been widely used in high-accuracy three-dimensional (3D)
shape measurement. However, for dynamic scenarios, the object motion will lead to extra …

Motion-induced error reduction for phase-shifting profilometry with phase probability equalization

Y Wang, J Cai, Y Liu, X Chen, Y Wang - Optics and Lasers in Engineering, 2022 - Elsevier
Phase-shifting algorithms have been widely used for three-dimensional (3D) shape
measurement. However, when measuring moving objects, the object motion may distort the …

Nonlinear high-order harmonics correction for phase measuring profilometry

Y Wang, H Xu, H Zhu, Y Rao, Y Wang - Optics & Laser Technology, 2024 - Elsevier
Gamma nonlinearity severely affects the accuracy of phase measuring profilometry (PMP).
Through averaging two phase maps with inverse errors, conventional methods including …

Deep learning-based method for non-uniform motion-induced error reduction in dynamic microscopic 3D shape measurement

J Tan, W Su, Z He, N Huang, J Di, L Zhong, Y Bai… - Optics …, 2022 - opg.optica.org
The non-uniform motion-induced error reduction in dynamic fringe projection profilometry is
complex and challenging. Recently, deep learning (DL) has been successfully applied to …

Untrained deep learning-based phase retrieval for fringe projection profilometry

H Yu, X Chen, R Huang, L Bai, D Zheng… - Optics and Lasers in …, 2023 - Elsevier
Fringe projection profilometry (FPP) based on deep learning shows potential for challenging
3-D sensing tasks, eg, bio-medicine, reverse engineering, and face recognition, etc …

The absolute phase retrieval based on the rotation of phase-shifting sequence

H An, Y Cao, L Wang, B Qin - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The absolute phase retrieval has been the focus of developments in 3-D shape
measurement. The traditional absolute phase retrievals based on phase-shifting algorithm …