Results 1 to 10 of about 16,077 (109)

The Utilization of Artificial Neural Network Equalizer in Optical Camera Communications [PDF]

open access: yesSensors, 2021
In this paper, we propose and validate an artificial neural network-based equalizer for the constant power 4-level pulse amplitude modulation in an optical camera communications system.
Othman Isam Younus   +5 more
doaj   +4 more sources

Experimentally Derived Feasibility of Optical Camera Communications under Turbulence and Fog Conditions [PDF]

open access: yesSensors, 2020
Optical camera communications (OCC) research field has grown recently, aided by ubiquitous digital cameras; however, atmospheric conditions can restrict their feasibility in outdoor scenarios.
Vicente Matus   +4 more
doaj   +4 more sources

Optical Camera Communications for IoT–Rolling-Shutter Based MIMO Scheme with Grouped LED Array Transmitter [PDF]

open access: yesSensors, 2020
In optical camera communications (OCC), the provision of both flicker-free illumination and high data rates are challenging issues, which can be addressed by utilizing the rolling-shutter (RS) property of the image sensors as the receiver (Rx).
Shivani Rajendra Teli   +5 more
doaj   +4 more sources

Wireless Sensor Networks Using Sub-Pixel Optical Camera Communications: Advances in Experimental Channel Evaluation [PDF]

open access: yesSensors, 2021
Optical wireless communications in outdoor scenarios are challenged by uncontrollable atmospheric conditions that impair the channel quality. In this paper, different optical camera communications (OCC) equipment are experimentally studied in the ...
Vicente Matus   +4 more
doaj   +2 more sources

Design and Experimental Characterization of a Discovery and Tracking System for Optical Camera Communications [PDF]

open access: yesSensors, 2021
Visible light communications (VLC) technology is emerging as a candidate to meet the demand for interconnected devices’ communications. However, the costs of incorporating specific hardware into end-user devices slow down its market entry. Optical camera
Antonio Mederos-Barrera   +4 more
doaj   +2 more sources

DeepCCB-OCC: Deep Learning-Driven Complementary Color Barcode-Based Optical Camera Communications

open access: yesApplied Sciences, 2022
Display-to-camera (D2C) communications has emerged as a key method for next-generation videos that offer side information to camera-equipped devices during normal viewing. This paper presents Deep learning-driven Complementary Color Barcode-based Optical
Min Tae Kim, Byung Wook Kim
doaj   +3 more sources

Optical Camera Communications in Healthcare: A Wearable LED Transmitter Evaluation during Indoor Physical Exercise [PDF]

open access: yesSensors
This paper presents an experimental evaluation of a wearable light-emitting diode (LED) transmitter in an optical camera communications (OCC) system. The evaluation is conducted under conditions of controlled user movement during indoor physical exercise,
Eleni Niarchou   +4 more
doaj   +2 more sources

Optical Lensless-Camera Communications Aided by Neural Network

open access: yesApplied Sciences, 2019
Currently, the optical components of a camera embedded in the device constrain its overall thickness. Moreover, if the camera is strongly shaken, the lens and sensor may be misaligned, resulting in a defocusing effect.
Suhua Zhong   +5 more
doaj   +3 more sources

I/Q Demodulator Based Optical Camera Communications

open access: yesIEEE Photonics Journal, 2022
Visible light communications achieve wireless communications using light sources such as lighting fixtures and electric signboards. The light sources need to blink at high speed to avoid flickering. However, the blinking frequency is much higher than the
Hiroaki Matsunaga   +5 more
doaj   +1 more source

Special Issue on Optical Camera Communications and Applications

open access: yesApplied Sciences, 2023
Optical Camera Communication (OCC) is a groundbreaking technology that combines optical signals and image sensors for data transmission [...]
Pankaj Singh, Sung-Yoon Jung
doaj   +1 more source

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