標題: Comparison of thresholding schemes for visible light communication using mobile-phone image sensor
作者: Liu, Yang
Chow, Chi-Wai
Liang, Kevin
Chen, Hung-Yu
Hsu, Chin-Wei
Chen, Chung-Yen
Chen, Shih-Hao
光電工程學系
光電工程研究所
Department of Photonics
Institute of EO Enginerring
公開日期: 8-Feb-2016
摘要: Based on the rolling shutter effect of the complementary metal-oxide-semiconductor (CMOS) image sensor, bright and dark fringes can be observed in each received frame. By demodulating the bright and dark fringes, the visible light communication (VLC) data logic can be retrieved. However, demodulating the bright and dark fringes is challenging as there is a high data fluctuation and large extinction ratio (ER) variation in each frame due. Hence proper thresholding scheme is needed. In this work, we propose and compare experimentally three thresholding schemes; including third-order polynomial curve fitting, iterative scheme and quick adaptive scheme. The evaluation of these three thresholding schemes is performed. (C) 2016 Optical Society of America
URI: http://dx.doi.org/10.1364/OE.24.001973
http://hdl.handle.net/11536/133526
ISSN: 1094-4087
DOI: 10.1364/OE.24.001973
期刊: OPTICS EXPRESS
Volume: 24
Issue: 3
起始頁: 1973
結束頁: 1978
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