Pavement Marking Incorporated With Binary Code for Accurate Localization of Autonomous Vehicles

Yuhao Wang, Yuhong Wang, Ivan Wang Hei Ho, Wei Sheng, Ling Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Accurate localization is a critically important issue for autonomous vehicles as it is closely related to the safety and efficiency of autonomous driving. However, current technologies for autonomous vehicle localization face many challenges. To provide accurate and robust localization services to autonomous vehicles, we propose a novel solution by employing a newly designed pavement marking. This marking operates on color contrast, temperature contrast, and binary code with some special features. We also trained and customized an object detector based on a deep learning model: YOLOv5, and integrated it with the decoding algorithm. The localization system is capable of running at a steady frame rate of more than 50 FPS. Road trials up to 80 km/h were conducted, and satisfactory results confirmed the feasibility and robustness of the localization system. Specifically, with a common onboard camera, more than four continuous frames can be detected and decoded correctly when the speed is slower than 30 km/h. At least one frame can be detected and decoded correctly at a higher speed (i.e., 30 - 50 km/h). With a high-speed camera, more than 18 frames can be detected and decoded even at 80 km/h. The findings suggest that the specially designed road marking and associated algorithms can provide a viable and economical option for accurate localization of autonomous vehicles. The performance of the system has potentials for further improvement by using better hardware such as faster CPUs, GPUs, and thermal imaging techniques.

Original languageEnglish
Article number9780215
Pages (from-to)1-11
Number of pages11
JournalIEEE Transactions on Intelligent Transportation Systems
DOIs
Publication statusAccepted/In press - 2022

Keywords

  • Accurate localization
  • Autonomous vehicles
  • binary code.
  • Cameras
  • Global Positioning System
  • Image color analysis
  • Location awareness
  • object detection
  • pavement marking
  • Roads
  • Wireless fidelity

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering
  • Computer Science Applications

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