Reference broadcast frame synchronization for distributed high-speed camera network
Hyuno Kim, Masatoshi Ishikawa, Yuji Yamakawa · 2018
Frame synchronization using reference broadcast is a promising method for distributed high-speed camera network due to its intuitive synchronization structure. This paper examines the performance of reference broadcast scheme based on Message Passing Interface at camera node level. For this purpose, the event time distribution regarding reference signal receiving and image capturing is statistically analyzed. We built a high-speed camera network consisting of 8 camera nodes and attained a high accuracy of frame synchronization, with a standard deviation on the order of tens of microseconds. In order to prove the synchronized operation of high-speed camera network at 1,000 Hz, an experiment with fast flashing LED is conducted.