Results 41 to 50 of about 126,459 (254)

Data Rate Enhancement in Optical Camera Communications Using an Artificial Neural Network Equaliser

open access: yesIEEE Access, 2020
In optical camera communication (OCC) systems leverage on the use of commercial off-the-shelf image sensors to perceive the spatial and temporal variation of light intensity to enable data transmission.
Othman Isam Younus   +6 more
doaj   +1 more source

Experimental Demonstration of Continuous Sensor Data Monitoring Using Neural Network-Based Optical Camera Communications

open access: yesIEEE Photonics Journal, 2020
This technical paper presents an optical camera communication system by using data as input collected from a sensor that continuously garners humidity and temperature information from the environment.
Md. Faisal Ahmed   +4 more
doaj   +1 more source

Robust OCC System Optimized for Low-Frame-Rate Receivers

open access: yesSensors, 2022
Light emitting diodes (LED) are becoming the dominant lighting elements due to their efficiency. Optical camera communications (OCC), the branch of visible light communications (VLC) that uses video cameras as receivers, is a suitable candidate in ...
Robert-Alexandru Dobre   +2 more
doaj   +1 more source

Rock falls impacting railway tracks. Detection analysis through an artificial intelligence camera prototype [PDF]

open access: yes, 2017
During the last few years, several approaches have been proposed to improve early warning systems for managing geological risk due to landslides, where important infrastructures (such as railways, highways, pipelines, and aqueducts) are exposed elements.
Fantini, Andrea   +2 more
core   +3 more sources

Macroscopic invisibility cloaking of visible light [PDF]

open access: yes, 2010
Invisibility cloaks, which used to be confined to the realm of fiction, have now been turned into a scientific reality thanks to the enabling theoretical tools of transformation optics and conformal mapping.
A Alu   +25 more
core   +4 more sources

Analytical and simulation tools for optical camera communications

open access: yesComputer Communications, 2020
The use of LED-to-camera communication opens the door to a wide range of use cases and applications, with diverse requirements in terms of quality of service. However, while analytical models and simulation tools exist for all the major radio communication technologies, the only way of currently evaluating the performance of a network mechanism over ...
Duque, Alexis   +3 more
openaire   +3 more sources

VLC/OCC Hybrid Optical Wireless Systems for Versatile Indoor Applications

open access: yesIEEE Access, 2019
In this paper, a hybrid scheme for optical wireless communications using LED lamps is proposed. This scheme allows both visible light communication (VLC) using photodetectors and optical camera communication (OCC) using image sensors of a camera to ...
Duy Thong Nguyen   +3 more
doaj   +1 more source

Optical Camera Communication as an Enabling Technology for Microalgae Cultivation

open access: yesSensors, 2021
Optical Camera Communication (OCC) systems have a potential application in microalgae production plants. In this work, a proof-of-concept prototype consisting of an artificial lighting photobioreactor is proposed.
Cristo Jurado-Verdu   +4 more
doaj   +1 more source

A Comparative Survey of Optical Wireless Technologies: Architectures and Applications

open access: yes, 2018
New high-data-rate multimedia services and applications are evolving continuously and exponentially increasing the demand for wireless capacity of fifth-generation (5G) and beyond.
Chowdhury, Mostafa Zaman   +3 more
core   +1 more source

Test of mode-division multiplexing and demultiplexing in free-space with diffractive transformation optics [PDF]

open access: yes, 2017
open5openGIANLUCA RUFFATO, 1; FILIPPO ROMANATO, ; 1Department of Physics and Astronomy ‘G. Galilei’, University of Padova; 2Laboratory for Nanofabrication of Nanodevices, c.so Stati Uniti 4GIANLUCA RUFFATO, 1; Romanato, Filippo; Ruffato, Gianluca ...

core   +1 more source

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