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Illumination-Based Synchronization of High-Speed Vision Sensors
oleh: Lei Hou, Shingo Kagami, Koichi Hashimoto
Format: | Article |
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Diterbitkan: | MDPI AG 2010-06-01 |
Deskripsi
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.