Decoding mobile-phone image sensor rolling shutter effect for visible light communications

Yang Liu

doi:10.1117/1.OE.55.1.016103

26 January 2016 Decoding mobile-phone image sensor rolling shutter effect for visible light communications

Yang Liu

Author Affiliations +

Optical Engineering, Vol. 55, Issue 1, 016103 (January 2016). https://doi.org/10.1117/1.OE.55.1.016103

Abstract

Optical wireless communication (OWC) using visible lights, also known as visible light communication (VLC), has attracted significant attention recently. As the traditional OWC and VLC receivers (Rxs) are based on PIN photo-diode or avalanche photo-diode, deploying the complementary metal-oxide-semiconductor (CMOS) image sensor as the VLC Rx is attractive since nowadays nearly every person has a smart phone with embedded CMOS image sensor. However, deploying the CMOS image sensor as the VLC Rx is challenging. In this work, we propose and demonstrate two simple contrast ratio (CR) enhancement schemes to improve the contrast of the rolling shutter pattern. Then we describe their processing algorithms one by one. The experimental results show that both the proposed CR enhancement schemes can significantly mitigate the high-intensity fluctuations of the rolling shutter pattern and improve the bit-error-rate performance.

Citation Download Citation

Yang Liu "Decoding mobile-phone image sensor rolling shutter effect for visible light communications," Optical Engineering 55(1), 016103 (26 January 2016). https://doi.org/10.1117/1.OE.55.1.016103

Published: 26 January 2016

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