Illumination-based synchronization of high-speed vision sensors

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

To acquire images of dynamic scenes from multiple points of view simultaneously, the acquisition time of vision sensors should be synchronized. This paper describes an illumination-based synchronization method derived from the phase-locked loop (PLL) algorithm. Incident light to a vision sensor from an intensity-modulated illumination source serves as the reference signal for synchronization. Analog and digital computation within the vision sensor forms a PLL to regulate the output signal, which corresponds to the vision frame timing, to be synchronized with the reference. Simulated and experimental results show that a 1,000 Hz frame rate vision sensor was successfully synchronized with 32 μs jitters.

Original languageEnglish
Pages (from-to)5530-5547
Number of pages18
JournalSensors
Volume10
Issue number6
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Camera synchronization
  • Phase-locked loop
  • Visible light communication

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

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