Illumination-Based Synchronization of High-Speed Vision Sensors

Sensors

Lei Hou¹  Shingo Kagami² 

[1] Department of System Information Sciences, Graduate School of Information Sciences, Tohoku University, 6-6-01 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Japan;

关键词: camera synchronization;    phase-locked loop;    visible light communication;   

DOI  :  10.3390/s100605530

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.