A VLC Smartphone Camera based Indoor Positioning System

Yiwei Li, Zabih Ghassemlooy, Xuan Tang, Bangjiang Lin, Yi Zhang

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)
158 Downloads (Pure)


We present a real-time indoor visible light positioning system based on the optical camera communication, where the coordinate data in the ON–OFF keying format is transmitted via light-emitting diode-based lights and captured using a smartphone camera. The position of the camera is estimated using a novel perspective- n -point problem algorithm, which determines the position of a calibrated camera from n 3D -to-2D point correspondences. The experimental results show that the proposed system offers mean position errors of 4.81 and 6.58 cm for the heights of 50 and 80 cm, respectively.
Original languageEnglish
Pages (from-to)1171-1174
JournalIEEE Photonics Technology Letters
Issue number13
Early online date10 May 2018
Publication statusPublished - 1 Jul 2018


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