A new video-synchronized multichannel biomedical data acquisition system.
This data acquisition system records video frames onto a video tape, and simultaneously acquires biomedical data along with video time codes onto a computer hard disk to achieve a 30-min video-synchronized data recording with a summed data rate of 2.16 Mbit/s. A time-code-bridge-file created during acquisition matches each video frame-start with the corresponding index number of the acquired data. The mean synchronization accuracy of the system is 0.22 ms.
Zeng
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National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA. saz0@cdc.gov
Powers
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JR
Hsiao
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D003196:Computer Graphics; D003201:Computers; D003625:Data Collection / Q000379:methods*; D004784:Environmental Monitoring; D006801:Humans; D016247:Information Storage and Retrieval / Q000379:methods*; D016347:Medical Records Systems, Computerized; D008991:Monitoring, Physiologic; D012815:Signal Processing, Computer-Assisted; D012985:Software Design; D014741:Video Recording