Author： Hou Lei Kagami Shingo Hashimoto Koichi
Publisher： MDPI
E-ISSN： 1424-8220|10|6|5530-5547
ISSN： 1424-8220
Source： Sensors, Vol.10, Iss.6, 2010-06, pp. : 5530-5547
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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
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