Results 71 to 80 of about 4,430,625 (163)

High-Speed Robust Dynamic Positioning and Tracking Method Based on Visual Visible Light Communication Using Optical Flow Detection and Bayesian Forecast

IEEE Photonics Journal, 2018
There are three critical elements in visible light positioning (VLP) system: Positioning accuracy, real-time ability, and robustness. However, most of the existing VLP studies only focus on the positioning accuracy and only a few studies consider the ...
Weipeng Guan, Xin Chen, Mouxiao Huang, Zixuan Liu, Yuxiang Wu, Yingcong Chen   +5 more
doaj   +1 more source

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, Volume 43, Issue 7, Page 4382-4401, October 2026.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

Visible light positioning for location-based services in Industry 4.0 [PDF]

, 2019
Industry 4.0 refers to the evolution in manufacturing from computerization to fully cyberphysical systems that exploit rich sensor data, adaptive real-time safety-critical control, and machine learning. An important aspect of this vision is the sensing
Little, T.D.C., Lam, E.W.
core   +1 more source

Indoor Visible Light Positioning Using Spring-Relaxation Technique in Real-World Setting

IEEE Access, 2019
GPS has limitations in indoor applications. Consequently, other indoor localization techniques and systems are active areas of research. Visible Light Positioning (VLP) is a promising option, especially given the growing popularity of LED-based lighting ...
Fakhrul Alam, Nathaniel Faulkner, Mathew Legg, Serge Demidenko   +3 more
doaj   +1 more source

Concurrent Cloud and Drizzle Observations From Synergistic Ground‐Based Measurements

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Drizzle, a common feature of marine boundary layer clouds formed through collision‐coalescence, plays a key role in cloud microphysics and evolution. However, simultaneously retrieving cloud and drizzle properties from remote‐sensing observations remains challenging because drizzle droplets often dominate radar signals, masking cloud ...
Ching‐Shu Hung, J. Christine Chiu, Yann Blanchard, Peter Jan van Leeuwen, V. Chandrasekar, Sounak Biswas, Maria P. Cadeddu, Connor Flynn, Fan Mei, Jian Wang   +9 more
wiley   +1 more source

Research on integrated communication and positioning technology based on visible light

Dianxin kexue, 2023
Visible light wireless technology transmits information through visible light, utilizing light-emitting diode (LED) light sources to achieve communication and positioning while illuminating.Visible light communication positioning integration (VLCP ...
Wei WANG, Jianping WANG, Lifang FENG, Jianli JIN   +3 more
doaj   +2 more sources

Volatile Relay Biosensing and Mobile Phone Imaging for Detection of Influenza Virus

Advanced Functional Materials, Volume 36, Issue 74, 14 September 2026.
Detection of volatile organic compounds is performed via a coupled enzymatic assay with mobile phone detection of the signal. Specific application demonstrated herein is the detection of influenza virus, across multiple levels of biological complexity, up to patient‐derived samples.
Dante G. Andersen, Josefine H. Jakobsen, Mikkel Høj Nielsen, Shreyans Chatterjee, Detlef Michel, Jan Münch, Rüdiger Gross, Alexander N. Zelikin   +7 more
wiley   +1 more source

Forensic bruise documentation with alternate light sources: Preliminary observation on deceased individuals in a routine illuminated autopsy setting

Journal of Forensic Sciences, Volume 71, Issue 5, Page 2386-2394, September 2026.
Abstract Alternate light sources (ALS) have been suggested to improve bruise visibility for medicolegal evaluations. Previous studies have recommended darkened conditions; however, this does not reflect real‐life autopsy settings, where multiple examinations are conducted simultaneously and turning off the lights is neither practical nor safe.
Sif Korsbæk Topsøe‐Jensen, Carl Johan Wingren, Chiara Villa   +2 more
wiley   +1 more source

Deep Mutational Scanning for the Study and Engineering of Protein Assemblies

Chemistry–Methods, Volume 6, Issue 8, August 2026.
This review explores how deep mutational scanning (DMS) can be used to improve understanding and accelerate engineering of protein assemblies, from natural fibers to engineered nanocages. We discuss various types of protein assemblies and their characterization, provide an introduction to the DMS technique, and then highlight examples in which DMS has ...
Jenna B. Wolfanger, Shoili Banerjee, Carolyn E. Mills   +2 more
wiley   +1 more source

K-Means-Based DNN Algorithm for a High Accuracy VLP System

Photonics
In this paper, a positioning algorithm based on the combination of K-means clustering and deep neural networks (DNNs) is first presented for multiple light emitting diodes (LEDs) integrated with visible light positioning (VLP) systems.
Jianli Jin, Shouwei Wang, Lu Yang, Huimin Lu, Jianping Wang, Danyang Chen, Lifang Feng, Hongyao Chen, Hongyu Zhang   +8 more
doaj   +1 more source