Results 51 to 60 of about 888,402 (309)

Object Recognition in Atmospheric Turbulence Scenes

2023 31st European Signal Processing Conference (EUSIPCO), 2023
The influence of atmospheric turbulence on acquired surveillance imagery poses significant challenges in image interpretation and scene analysis. Conventional approaches for target classification and tracking are less effective under such conditions. While deep-learning-based object detection methods have shown great success in normal conditions, they ...
Disen Hu, Nantheera Anantrasirichai
openaire   +4 more sources

Adaptive optics solutions for turbulence mitigation in different scenarios

, 2022
Paper 816104Several studies on different adaptive optics concepts are presented in the article. Each one of the procedures shows its peculiar advantages when considering different situations where the image distortion, due to atmospheric or artificial ...
Scheifling, C., Marchi, G.
core   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Multistep ahead atmospheric optical turbulence forecasting for free-space optical communication using empirical mode decomposition and LSTM-based sequence-to-sequence learning

Frontiers in Physics, 2023
Although free-space optical communication (FSOC) is a promising means of high data rate satellite-to-ground communication, beam distortion caused by atmospheric optical turbulence remains a major challenge for its engineering applications.
Yalin Li, Hongqun Zhang, Lang Li, Lang Li, Lang Li, Lu Shi, Lu Shi, Yan Huang, Shiyao Fu, Shiyao Fu, Shiyao Fu   +10 more
doaj   +1 more source

Experimental investigation of the performance of different modulation techniques under controlled FSO turbulence channel [PDF]

, 2010
This paper experimentally investigates and compares the performance of the free space optics system employing three different modulation schemes, on-off keying (OOK) with nonreturn- to-zero (NRZ) and return-to-zero (RZ) and the binary phase shift keying (
Z. Ghassemlooy, Adebanjo, Olusegun, O. Adebanjo, S. Ansari, S. Rajbhandari, Ghassemlooy, Zabih, H. Le Minh, Ansari, S., A. Gholami, Rajbhandari, Sujan, Ijaz, Muhammad, M. Ijaz, Le Minh, Hoa   +12 more
core   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

Effects of Atmospheric Turbulence on Lensless Ghost Imaging with Partially Coherent Light

Applied Sciences, 2018
Ghost imaging with partially coherent light through two kinds of atmospheric turbulences: monostatic turbulence and bistatic turbulence, is studied, both theoretically and experimentally.
Xianlong Liu, Fei Wang, Minghui Zhang, Yangjian Cai   +3 more
doaj   +1 more source

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

Advanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu, Yamin Mansur, Sai Peri, Jiangyuan Wan, Amio Pronoy Das Ritwik, Emily L. Johnson, Jingcheng Ma   +6 more
wiley   +1 more source

Computational Imaging Through Atmospheric Turbulence

Foundations and Trends® in Computer Graphics and Vision, 2023
Since the seminal work of Andrey Kolmogorov in the early 1940’s, imaging through atmospheric turbulence has grown from a pure scientific pursuit to an important subject across a multitude of civilian, space-mission, and national security applications.
Stanley H. Chan, Nicholas Chimitt
openaire   +4 more sources