Comparison of thresholding schemes for visible light communication using mobile-phone image sensor

Yang Liu, Chi Wai Chow, Kevin Liang, Hung Yu Chen, Chin Wei Hsu, Chung Yen Chen, Shih Hao Chen

研究成果: Article

22 引文 斯高帕斯(Scopus)

摘要

Based on the rolling shutter effect of the complementary metaloxidesemiconductor (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.

原文English
頁(從 - 到)1973-1978
頁數6
期刊Optics Express
24
發行號3
DOIs
出版狀態Published - 8 二月 2016

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