標題: | Mobile-phone based visible light communication using region-grow light source tracking for unstable light source |
作者: | Liang, Kevin Chow, Chi-Wai Liu, Yang 光電工程學系 光電工程研究所 Department of Photonics Institute of EO Enginerring |
公開日期: | 25-七月-2016 |
摘要: | In order to increase the data rate of the camera-based visible light communication (VLC) system, using rolling shutter effect has been demonstrated successfully, in which the pixel rows of the complementary-metal-oxide-semiconductor (CMOS) image sensor are activated sequentially. Previous camera-based VLCs focused on using a stable LED light source, and its illumination area is positioned at the center of an image frame. In this work, we investigate the performance of a camera-based VLC with light source at different parts of an image frame. We propose and demonstrate using region-grow algorithm to track the light source. We also evaluate and discuss different scenarios when the light source is moved. Besides, a recorded > 5 kbit/s net data rate can be achieved by using only a single phosphor-based white-light LED source. Here, we demonstrate that 4.502 pixel/bit can be achieved. (C) 2016 Optical Society of America |
URI: | http://dx.doi.org/10.1364/OE.24.017505 http://hdl.handle.net/11536/134289 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.24.017505 |
期刊: | OPTICS EXPRESS |
Volume: | 24 |
Issue: | 15 |
起始頁: | 17505 |
結束頁: | 17510 |
顯示於類別: | 期刊論文 |