Results 51 to 60 of about 29,335 (280)

Application of Optical Camera Communication to Microalgae Production Plants

, 2020
Optical Camera Communication (OCC) Systems have a potential application for monitoring flat-panel photobioreactors in microalgae production plants.
Juan Luis Gomez-Pinchetti, Cristo Jurado-Verdu, Guerra, Victor, Jose Rabadan, Rabadán, José A., Gomez-Pinchetti, Juan Luis, Rafael Perez-Jimenez, Carlos Almeida, Perez-Jimenez, Rafael, Jurado Verdú, Cristo Manuel, Matus, Vicente, Victor Guerra, Almeida, Carlos, Vicente Matus   +13 more
core   +1 more source

A Simplified Model for the Rolling Shutter Based Camera in Optical Camera Communications [PDF]

2019 15th International Conference on Telecommunications (ConTEL), 2019
A simplified model of the camera for optical camera communications (OCC) based on the rolling shutter effect is proposed and experimentally verified. In OCC, the key parameters are the exposure time, which is proportional to the DC gain and inversely proportional to the bandwidth, and the rolling shutter delay or the sampling period.
Xicong Li, Navid Bani Hassan, Andrew Burton, Zabih Ghassemlooy, Stanislav Zvanovec, Rafael Pérez Jiménez   +5 more
openaire   +3 more sources

Effect of Temperature on Channel Compensation in Optical Camera Communication [PDF]

Electronics, 2021
General-purpose Complementary Metal Oxide Semiconductor (CMOS) sensors perform the image desegregation in three channels (red, green, and blue) as a result of a band-pass wavelength filtering carried out using Foveon or Bayer filters. This characteristic can be used in Optical Camera Communication (OCC) systems for increasing the links’ data rate by ...
Daniel Moreno, Julio Rufo, Victor Guerra, Jose Rabadan, Rafael Perez-Jimenez   +4 more
openaire   +2 more sources

Distorted Laser Spot Center Positioning Based on Captured Image Under Laser-Camera Misalignment in UOWC

IEEE Photonics Journal, 2023
The laser spot center positioning is an essential step for camera-based terminal positioning and alignment in a long-distance laser-based underwater optical wireless communication (UOWC) system.
Weijie Liu, Yingying Jiang, Nuo Huang, Shangbin Li, Zhengyuan Xu   +4 more
doaj   +1 more source

Modelization and Characterization of a CMOS Camera as an Optical Real-Time Oscilloscope

IEEE Photonics Journal, 2020
Complementary Metal-Oxide Semiconductor (CMOS) camera sensors are embedded in many consumer electronics products: thanks to the Rolling Shutter (RS) readout mode, they can detect a time-varying light intensity, which is the key to realize Optical Camera ...
Giulio Cossu, Alessandro Sturniolo, Ernesto Ciaramella   +2 more
doaj   +1 more source

Motion-Aware Optical Camera Communication With Event Cameras

IEEE Robotics and Automation Letters
As the ubiquity of smart mobile devices continues to rise, Optical Camera Communication systems have gained more attention as a solution for efficient and private data streaming. This system utilizes optical cameras to receive data from digital screens via visible light. Despite their promise, most of them are hindered by dynamic factors such as screen
Hang Su, Ling Gao 0001, Tao Liu, Laurent Kneip   +3 more
openaire   +2 more sources

Non-Line-of-Sight Optical Camera Communication in a Heterogeneous Reflective Background

IEEE Photonics Journal, 2019
In the last few years, optical camera communication (OCC) has benefited from built-in CMOS image sensors in smart devices. OCC is now considered a candidate for incorporation into IEEE 802.15.7r1. A major study on OCC was conducted for line-of-sight (LOS)
Jenn-Kaie Lain, Fu-Cheng Jhan, Zheng-Dao Yang   +2 more
doaj   +1 more source

Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path

, 2006
An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife.
Perlot, Nicolas, K. Zettl, Knapek, Markus, Zettl, Karl, H. Henniger, Giggenbach, Dirk, D. Giggenbach, Henniger, Hennes, Horwath, Joachim, J. Horwath, N. Perlot, M. Knapek   +11 more
core   +1 more source

Correlation-based receiver for optical camera communications

Optics Express, 2019
In color-multiplexed optical camera communications (OCC) systems, data acquisition is restricted by the image processing algorithm capability for fast source recognition, region-of-interest (ROI) detection and tracking, packet synchronization within ROI, estimation of inter-channel interference and threshold computation.
Cristo Jurado-Verdu, Vicente Matus, Jose Rabadan, Victor Guerra, Rafael Perez-Jimenez   +4 more
openaire   +3 more sources

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source