Indoor 3D NLOS VLP using a binocular camera and a single LED

Tianming Huang, Bangjiang Lin, Zabih Ghassemlooy, Ningcong Jiang, Qiwei Lai

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)
    52 Downloads (Pure)

    Abstract

    In this paper, we propose a non-line of sight (NLOS) visible light positioning (VLP) system using a binocular camera and a single light emitting diode (LED) for the realization of 3D positioning of an arbitrary posture. The proposed system overcomes the challenges of the shadowing/blocking of the line of sight (LOS) transmission paths between transmitters and receivers (Rxs) and the need for a sufficient number of LEDs that can be captured within the limited field of view of the camera-based Rx. We have developed an experimental testbed to evaluate the performance of the proposed system with results showing that the lowest average error and the root mean square error (RMSE) are 26.10 and 31.02 cm following an error compensation algorithm. In addition, a label-based enhanced VLP scheme is proposed for the first time, which has a great improvement on the system performance with the average error and RMSE values of 7.31 and 7.74 cm and a 90 th percentile accuracies of < 11 cm.
    Original languageEnglish
    Article number35431
    Number of pages13
    JournalOptics Express
    Volume30
    Issue number20
    Early online date13 Sept 2022
    DOIs
    Publication statusPublished - 26 Sept 2022

    Keywords

    • Atomic and Molecular Physics, and Optics

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