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Sensors 2017, 17(4), 799;

Stroboscope Based Synchronization of Full Frame CCD Sensors

Virtual Reality Laboratory, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China
School of Computer and Control Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, China
Author to whom correspondence should be addressed.
Received: 24 February 2017 / Revised: 24 March 2017 / Accepted: 4 April 2017 / Published: 7 April 2017
(This article belongs to the Section Physical Sensors)
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The key obstacle to the use of consumer cameras in computer vision and computer graphics applications is the lack of synchronization hardware. We present a stroboscope based synchronization approach for the charge-coupled device (CCD) consumer cameras. The synchronization is realized by first aligning the frames from different video sequences based on the smear dots of the stroboscope, and then matching the sequences using a hidden Markov model. Compared with current synchronized capture equipment, the proposed approach greatly reduces the cost by using inexpensive CCD cameras and one stroboscope. The results show that our method could reach a high accuracy much better than the frame-level synchronization of traditional software methods. View Full-Text
Keywords: charge-coupled device (CCD); smear; stroboscope; video capture; synchronization; full frame; hidden Markov model (HMM) charge-coupled device (CCD); smear; stroboscope; video capture; synchronization; full frame; hidden Markov model (HMM)

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Shen, L.; Feng, X.; Zhang, Y.; Shi, M.; Zhu, D.; Wang, Z. Stroboscope Based Synchronization of Full Frame CCD Sensors. Sensors 2017, 17, 799.

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