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Through-Screen Visible Light Sensing Empowered by Embedded Deep Learning

Liu, Hao; Ye, Hanting; Yang, Jie; Wang, Qing;
Open Access
Abstract
Motivated by the trend of realizing full screens on devices such as smartphones, in this work we propose through-screen sensing with visible light for the application of fingertip air-writing. The system can recognize handwritten digits with under-screen photodiodes as the receiver. The key idea is to recognize the weak light reflected by the finger when the finger writes the digits on top of a screen. The proposed air-writing system has immunity to scene changes because it has a fixed screen light source. However, the screen is a double-edged sword as both a signal source and a noise source. We propose a data preprocessing method to reduce the interference of t...
Persistent Identifiers
Funded by
EC| ENLIGHTEM
Project
ENLIGHTEM
European Training Network in Low-energy Visible Light IoT Systems
  • Funder: European Commission (EC)
  • Project Code: 81415
  • Funding stream: H2020
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