Review of single-shot 3D shape measurement by phase calculation-based fringe projection techniques

ZH Zhang - Optics and lasers in engineering, 2012 - Elsevier
Full-field fringe projection techniques have been widely studied in academia and applied in
industrial fields because of the advantages of non-contact operation, fast full-field …

Three-dimensional shape measurements of specular objects using phase-measuring deflectometry

Z Zhang, Y Wang, S Huang, Y Liu, C Chang, F Gao… - Sensors, 2017 - mdpi.com
The fast development in the fields of integrated circuits, photovoltaics, the automobile
industry, advanced manufacturing, and astronomy have led to the importance and necessity …

Fringe pattern denoising based on deep learning

K Yan, Y Yu, C Huang, L Sui, K Qian, A Asundi - Optics Communications, 2019 - Elsevier
In this paper, deep learning as a novel algorithm is proposed to reduce the noise of the
fringe patterns. Usually, the training samples are acquired through experimental acquisition …

Optical fringe patterns filtering based on multi-stage convolution neural network

B Lin, S Fu, C Zhang, F Wang, Y Li - Optics and Lasers in Engineering, 2020 - Elsevier
Optical fringe patterns are often contaminated by speckle noise, making it difficult to
accurately and robustly extract their phase fields. To deal with this problem, we propose a …

Crack tip monitoring by multiscale optical experimental techniques

BV Farahani, F Direito, PJ Sousa, PJ Tavares… - International Journal of …, 2022 - Elsevier
This study focuses on the development of a complementary fatigue crack-tip evaluation
approach with multiscale optical techniques with different resolutions. A middle tension (MT) …

White-light spectral interferometry for surface plasmon resonance sensing applications

SP Ng, CML Wu, SY Wu, HP Ho - Optics Express, 2011 - opg.optica.org
A novel differential phase detecting surface plasmon resonance (SPR) sensor based on
white-light spectral interferometry is presented. Our proposed scheme employs a white-light …

Micro-profile measurement based on windowed Fourier transform in white-light scanning interferometry

S Ma, C Quan, R Zhu, CJ Tay, L Chen, Z Gao - Optics Communications, 2011 - Elsevier
White-light scanning interferometry (WLSI) has been widely used in micro-profile
measurement such as Micro-Electro-Mechanical Systems (MEMS) and Computer Generated …

Differential spectral phase interferometry for wide dynamic range surface plasmon resonance biosensing

SP Ng, CML Wu, SY Wu, HP Ho, SK Kong - Biosensors and Bioelectronics, 2010 - Elsevier
We introduce a novel wide dynamic range phase-sensitive surface plasmon resonance
(SPR) biosensor based on differential spectral interferometry. Superseding conventional …

Uneven wrapped phase pattern denoising using a deep neural network

J Li, C Tang, M Xu, Z Lei - Applied Optics, 2022 - opg.optica.org
The wrapped phase patterns obtained from an object composed of different materials have
uneven gray values. In this paper, we improve the dilated-blocks-based deep convolution …

Application of least-square estimation in white-light scanning interferometry

S Ma, C Quan, R Zhu, CJ Tay, L Chen, Z Gao - Optics and Lasers in …, 2011 - Elsevier
White-light scanning interferometry (WLSI) is a powerful tool for investigating the profile of a
test object that contains sharp steps. Due to the light source used in WLSI system, it is able …