ViLDAR: A novel speed estimation system using visible light in vehicles

Hisham Abuella, Sabit Ekin, Murat Uysal

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we introduce Visible Light Detection and Ranging (ViLDAR): a novel speed estimation system that utilizes visible light variation during a known time difference. The use of light emitting diodes (LED) in vehicles lighting systems has become increasingly common in the automotive industry. Concurrently, monitoring drivers' speeds constitutes a critical issue for safety regulation agencies. Most of the speed monitoring systems are based on measuring the speed of vehicles using wellknown RADAR or LiDAR systems that use radio frequency or laser signals, respectively. However, these systems have certain limitations, e.g., the requirement of line-of-sight for accurate results in RADAR and LiDAR, and narrow beam-width and deficient performance in curved roads in RADAR. We present a simple as well as novel estimation method for the speed of an approaching vehicle given only the received light intensity information. Assuming a Lambertian channel model for the light wave propagation, the performance of the estimator is compared in different angle of incidences between the vehicle and the detector. The proposed method outperforms RADAR/LiDAR systems in terms of speed estimation accuracy for a wide range of incidence angles.

Original languageEnglish (US)
Title of host publication2017 IEEE 38th Sarnoff Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538630198
StatePublished - Oct 23 2017
Event38th IEEE Sarnoff Symposium, Sarnoff 2017 - Newark, United States
Duration: Sep 18 2017Sep 20 2017

Publication series

Name2017 IEEE 38th Sarnoff Symposium


Conference38th IEEE Sarnoff Symposium, Sarnoff 2017
Country/TerritoryUnited States


  • Curve fitting
  • Lambertian channel model
  • Police radar
  • Speed estimation
  • Visible light

ASJC Scopus subject areas

  • Computer Networks and Communications


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