Illumination-Based Synchronization of High-Speed Vision Sensors
Illumination-Based Synchronization of High-Speed Vision Sensors
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DOI：
10.3390/s100605530
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发表时间：
2010-06-01
期刊：
影响因子：
3.9
通讯作者：
Hashimoto, Koichi
中科院分区：
文献类型：
--
作者：
Hou, Lei;Kagami, Shingo;Hashimoto, Koichi
为了从多个视角同时获取动态场景的图像，视觉传感器的采集时间应该是同步的。本文介绍了一种基于光照的同步方法，该方法源于锁相环（PLL）算法。从强度调制照明源到视觉传感器的入射光用作用于同步的参考信号。视觉传感器内的模拟和数字计算形成PLL以调节输出信号，其对应于视觉帧定时，以与参考同步。仿真和实验结果表明，1，000 Hz的帧速率的视觉传感器成功地同步与32 μ s的抖动。
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 mu s jitters.