Results 81 to 90 of about 24,825,488 (305)

Prediction of Power Fluctuations of Gaussian Beams After Transmission Through Turbulent Atmosphere

Photonics
As laser beams propagate through free space, power fluctuation occurs due to atmospheric turbulence, which significantly increases the bit error rate of free-space optical communication. If the precise prediction of power fluctuations can be achieved, it
Zhihao Wan, Jiayi Zhu, Cheng Huang, Zhimin He, Jun Zeng, Fuchang Chen, Chaoqun Yu, Yan Li, Huanting Chen, Yongtao Zhang, Jixiong Pu, Huichuan Lin   +11 more
doaj   +1 more source

Stokes meta-hologram toward optical cryptography

Nature Communications, 2022
Achieving optical cryptography scheme with both high capacity and security is highly desirable. Here, authors report a Stokes meta-hologram with a hierarchical encryption strategy that allows vector encryptions to produce depth-masked ciphertexts.
Xuyue Guo, Peng Li, Jinzhan Zhong, Dandan Wen, Bingyan Wei, Sheng Liu, Shuxia Qi, Jianlin Zhao   +7 more
doaj   +1 more source

Deep learning-enhanced light-field imaging with continuous validation

Nature Methods, 2020
Visualizing dynamic processes over large, three-dimensional fields of view at high speed is essential for many applications in the life sciences. Light-field microscopy (LFM) has emerged as a tool for fast volumetric image acquisition, but its effective ...
N. Wagner, Fynn Beuttenmueller, Nils Norlin, J. Gierten, J. Boffi, J. Wittbrodt, Martin Weigert, L. Hufnagel, R. Prevedel, A. Kreshuk   +9 more
semanticscholar   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Constraints on phenomenological amplitudes of CMB anisotropy from multiple datasets

European Physical Journal C: Particles and Fields
CMB anisotropies encode crucial information about the early Universe and fundamental cosmology. Although the standard $$\Lambda $$ Λ CDM model provides a successful description of cosmic evolution, persistent cosmological tensions and subtle small-scale ...
Yang Han, Lu Chen, Guo-Hao Li, Pei-Yuan Xu   +3 more
doaj   +1 more source

High-Quality and High-Efficiency Fabrication of Microlens Array by Rotary Profile Cutting Method

Micromachines
To enhance the fabrication consistency and surface quality of microlens array (MLA) molds, this study presents a high-quality and high-efficiency rotary profile-cutting (RPC) method conducted on a four-axis ultraprecision machining platform.
Liheng Gao, Xiuwen Sun, Qian Yu, Yinhui Wang, Md Nasir Uddin, Ruijue Duan, Gang Wang, Zhikang Zhou, Qiuchen Xie, Tao Sun, Tianfeng Zhou   +10 more
doaj   +1 more source

Light field superresolution

, 2009
Light field cameras have been recently shown to be very effective in applications such as digital refocusing and 3D reconstruction. In a single snapshot these cameras provide a sample of the light field of a scene by trading off spatial resolution with ...
Bishop, Tom E., Favaro, Paolo, Sara Zanetti, Tom E. Bishop, Zanetti, Sara, Paolo Favaro   +5 more
core   +1 more source

Optimized Reference Picture Selection for Light Field Image Coding [PDF]

, 2019
This paper proposes a new reference picture selection method for light field image coding using the pseudovideo sequence (PVS) format. State-of-the-art solutions to encode light field images using the PVS format rely on video coding standards to exploit ...
Monteiro, J. S. Ricardo, M. M. Rodrigues, Nuno, Faria, Sergio, Nunes, J. L. Paulo   +3 more
core   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

Tensor Oriented No-Reference Light Field Image Quality Assessment [PDF]

IEEE Transactions on Image Processing, 2019
Light field image (LFI) quality assessment is becoming more and more important, which helps to better guide the acquisition, processing and application of immersive media.
Wei Zhou, Likun Shi, Zhi-Bo Chen, Jing-Lin Zhang   +3 more
semanticscholar   +1 more source