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Wirelessly Transmitting a Grayscale Image using Visible Light

by Hrushit Parikh, Jimesh Chokshi, Nimit Gala
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 58 - Number 14
Year of Publication: 2012
Authors: Hrushit Parikh, Jimesh Chokshi, Nimit Gala
10.5120/9351-3677

Hrushit Parikh, Jimesh Chokshi, Nimit Gala . Wirelessly Transmitting a Grayscale Image using Visible Light. International Journal of Computer Applications. 58, 14 ( November 2012), 28-32. DOI=10.5120/9351-3677

@article{ 10.5120/9351-3677,
author = { Hrushit Parikh, Jimesh Chokshi, Nimit Gala },
title = { Wirelessly Transmitting a Grayscale Image using Visible Light },
journal = { International Journal of Computer Applications },
issue_date = { November 2012 },
volume = { 58 },
number = { 14 },
month = { November },
year = { 2012 },
issn = { 0975-8887 },
pages = { 28-32 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume58/number14/9351-3677/ },
doi = { 10.5120/9351-3677 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:02:31.154877+05:30
%A Hrushit Parikh
%A Jimesh Chokshi
%A Nimit Gala
%T Wirelessly Transmitting a Grayscale Image using Visible Light
%J International Journal of Computer Applications
%@ 0975-8887
%V 58
%N 14
%P 28-32
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

This paper discusses the use of visible light as an alternative to wireless radio communication for short distances. The paper highlights how a regular grayscale image can be transmitted with this method and faithful reproduction is achieved at the receiver. LED bulbs are used as transmitters and the intensity of the LEDs is varied at very high rate, using OFDM modulation in accordance to the image data, such that the intensity appears constant to the human eye. Thus, apart from providing illumination, the LED bulb transmits data at high rates. Specific design measures prevent ambient light from interfering with the demodulation process at the receiver. Although this method can be currently used for short range, future developments can really expand its scope.

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Index Terms

Computer Science
Information Sciences

Keywords

Visible Light image transmission Very high speed data transfer OFDM Photodiodes

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