Strategies for reducing speckle noise in digital holography
Digital holography (DH) has emerged as one of the most effective coherent imaging
technologies. The technological developments of digital sensors and optical elements have …
technologies. The technological developments of digital sensors and optical elements have …
[HTML][HTML] A review of the dual-wavelength technique for phase imaging and 3D topography
H Zhou, MMR Hussain, PP Banerjee - Light: Advanced Manufacturing, 2022 - light-am.com
Optically transmissive and reflective objects may have varying surface profiles, which
translate to arbitrary phase profiles for light either transmitted through or reflected from the …
translate to arbitrary phase profiles for light either transmitted through or reflected from the …
[HTML][HTML] The state-of-the-art in computer generated holography for 3D display
Holographic displays have the promise to be the ultimate 3D display technology, able to
account for all visual cues. Recent advances in photonics and electronics gave rise to high …
account for all visual cues. Recent advances in photonics and electronics gave rise to high …
Two-dimensional phase unwrap** based on U2-Net in complex noise environment
J Chen, Y Kong, D Zhang, Y Fu, S Zhuang - Optics Express, 2023 - opg.optica.org
This paper proposes applying the nested U^ 2-Net to a two-dimensional phase unwrap**
(PU). PU has been a classic well-posed problem since conventional PU methods are always …
(PU). PU has been a classic well-posed problem since conventional PU methods are always …
Phase calibration unwrap** algorithm for phase data corrupted by strong decorrelation speckle noise
H ** in the presence of high noise remains an open issue. Especially,
when both noise and fringe densities are high, pre-filtering may lead to phase dislocations …
when both noise and fringe densities are high, pre-filtering may lead to phase dislocations …
[HTML][HTML] Computational de-noising based on deep learning for phase data in digital holographic interferometry
This paper presents a deep-learning-based algorithm dedicated to the processing of
speckle noise in phase measurements in digital holographic interferometry. The deep …
speckle noise in phase measurements in digital holographic interferometry. The deep …
Speckle denoising based on deep learning via a conditional generative adversarial network in digital holographic interferometry
Q Fang, H **a, Q Song, M Zhang, R Guo… - Optics …, 2022 - opg.optica.org
Speckle denoising can improve digital holographic interferometry phase measurements but
may affect experimental accuracy. A deep-learning-based speckle denoising algorithm is …
may affect experimental accuracy. A deep-learning-based speckle denoising algorithm is …
[HTML][HTML] Towards reduced CNNs for de-noising phase images corrupted with speckle noise
Digital holography is a very efficient technique for 3D imaging and the characterization of
changes at the surfaces of objects. However, during the process of holographic …
changes at the surfaces of objects. However, during the process of holographic …
Recent advances and applications of digital holography in multiphase reactive/nonreactive flows: a review
In various multiphase flows, the characterization of particle dynamics is important in the
understanding of the interaction between particles and the surrounding flows. Digital …
understanding of the interaction between particles and the surrounding flows. Digital …
Deep learning-based wrapped phase denoising method for application in digital holographic speckle pattern interferometry
K Yan, L Chang, M Andrianakis, V Tornari, Y Yu - Applied Sciences, 2020 - mdpi.com
This paper presents a new processing method for denoising interferograms obtained by
digital holographic speckle pattern interferometry (DHSPI) to serve in the structural …
digital holographic speckle pattern interferometry (DHSPI) to serve in the structural …