Summary
International Conference on Emerging Technologies for Communications
2021
Session Number:B3
Session:
Number:B3-5
LED array acquisition in Road to Vehicle Visible Light Communication when receiver crosses transmitter
Kento Nakamura, Takaya Yamazato, Masayuki Kinoshita, Koji Kamakura, Shintaro Arai, Tomohiro Yendo, Toshiaki Fujii ,
pp.-
Publication Date:2021/12/1
Online ISSN:2188-5079
Summary:
Intelligent Transport Systems Visible Light Communication (ITS-VLC) is attracting significant attention as a solution to solve various problems that vehicles have, or for the installation of new systems in the vehicles. In ITS-VLC, the acquisition of the VLC transmitter via light-emitting diodes (LEDs) in the onboard camera's captured image is the first and essential step when receiving the VLC signal. Most of the previous research on the acquisition of the LEDs assumes that the vehicles approach the LEDs source from the front of the vehicle. However, there are many situations in which vehicles cross the LEDs. In this study, we considered a case in which the vehicle’s receiver crosses the LED transmitter. We modified the acquisition algorithm based on the spatial-temporal gradient utilized in our model in which the transmitter and the receiver cross each other. We found that we can acquire the transmitter by correcting the difference of the transmitter’s position in the captured image. When validating the specific signal, we achieved 100% acquisition success rate.