Results 21 to 30 of about 173,553 (278)

Multispectral Optical camera communication links based on spectral signature multiplexing

open access: yesIET Optoelectronics, 2023
Optical camera communication is foreseen to have an essential role in future systems requiring wireless communication capability. In this regard, high‐spectral‐resolution cameras, such as multispectral (MS) cameras, present specific characteristics that ...
Daniel Moreno   +4 more
doaj   +1 more source

The first tests of smartphone camera exposure effect on optical camera communication links [PDF]

open access: yes, 2019
In this paper, we study the effect of smartphone camera exposure on the performance of optical camera communications (OCC) link. The exposure parameters of image sensor sensitivity (ISO), aperture and shutter speed are included.
Ghassemlooy, Zabih   +2 more
core   +2 more sources

Optical camera communications link using an LED-coupled illuminating optical fiber [PDF]

open access: yesOptics Letters, 2021
In this Letter, we propose and demonstrate a novel wireless communications link using an illuminating optical fiber as a transmitter (Tx) in optical camera communications. We demonstrate an indoor proof-of-concept system using an illuminating plastic optical fiber coupled with a light-emitting diode and a commercial camera as the Tx and the receiver ...
Teli, Shivani Rajendra   +4 more
openaire   +3 more sources

Experimental DCO-OFDM Optical Camera Communication Systems With a Commercial Smartphone Camera

open access: yesIEEE Photonics Journal, 2019
Modern handheld mobile devices are equipped with a complementary metal-oxide-semiconductor (CMOS) image sensor. These image sensors are capable of perceiving intensity changes in optically modulated signals, driving the rapid development of optical ...
Jenn-Kaie Lain   +2 more
doaj   +1 more source

A Nested Texture Inspired Novel Image Pattern Based Optical Camera Communication

open access: yesIEEE Access, 2022
Pattern recognition is a vital component of display-based optical camera communication. However, as the distance between the transmitter LED panel and the receiver camera increases, the visibility of the pattern reduces.
Sanket Salvi, V. Geetha
doaj   +1 more source

Secret key distribution leveraging color shift over visible light channel [PDF]

open access: yes, 2017
Given the widely adoption of screen and camera in many electronic devices, the visible light communication (VLC) over screen-to-camera channel emerges as a novel short range communication technique in recent years.
Chen, Yingying   +3 more
core   +1 more source

A New Automotive VLC System Using Optical Communication Image Sensor

open access: yesIEEE Photonics Journal, 2016
As a new technology for next-generation vehicle-to-everything (V2X) communication, visible-light communication (VLC) using light-emitting diode (LED) transmitters and camera receivers has been energetically studied.
Yuki Goto   +8 more
doaj   +1 more source

High-speed imaging and wavefront sensing with an infrared avalanche photodiode array [PDF]

open access: yes, 2015
Infrared avalanche photodiode arrays represent a panacea for many branches of astronomy by enabling extremely low-noise, high-speed and even photon-counting measurements at near-infrared wavelengths.
Atkinson, Dani   +6 more
core   +3 more sources

Correlation-based receiver for optical camera communications

open access: yesOptics 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   +4 more
openaire   +3 more sources

400  m rolling-shutter-based optical camera communications link [PDF]

open access: yesOptics Letters, 2020
In this Letter, we develop a novel technique, to the best of our knowledge, to increase the link span ( L s ) of a rolling shutter (RS)-based optical camera communications (OCC) system by reducing the spatial bandwidth of the camera in the out-of-focus regions.
Eso, Elizabeth   +5 more
openaire   +3 more sources

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