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System Synchronizes Recordings from Separated Video CamerasA system of electronic hardware and software for synchronizing recordings from multiple, physically separated video cameras is being developed, primarily for use in multiple-look-angle video production. The system, the time code used in the system, and the underlying method of synchronization upon which the design of the system is based are denoted generally by the term "Geo-TimeCode(TradeMark)." The system is embodied mostly in compact, lightweight, portable units (see figure) denoted video time-code units (VTUs) - one VTU for each video camera. The system is scalable in that any number of camera recordings can be synchronized. The estimated retail price per unit would be about $350 (in 2006 dollars). The need for this or another synchronization system external to video cameras arises because most video cameras do not include internal means for maintaining synchronization with other video cameras. Unlike prior video-camera-synchronization systems, this system does not depend on continuous cable or radio links between cameras (however, it does depend on occasional cable links lasting a few seconds). Also, whereas the time codes used in prior video-camera-synchronization systems typically repeat after 24 hours, the time code used in this system does not repeat for slightly more than 136 years; hence, this system is much better suited for long-term deployment of multiple cameras.
Document ID
20090020579
Acquisition Source
Stennis Space Center
Document Type
Other - NASA Tech Brief
External Source(s)
http://www.techbriefs.com/component/content/article/5160
Authors
Nail, William (Technological Services Co. Picayune, MS, United States)
Nail, William L. (Technological Services Co. Picayune, MS, United States)
Nail, Jasper M. (Technological Services Co. Picayune, MS, United States)
Le, Doung T. (Technological Services Co. Picayune, MS, United States)
Date Acquired
August 24, 2013
Publication Date
May 1, 2009
Publication Information
Publication: NASA Tech Briefs, May 2009
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SSC-00253
Distribution Limits
Public
Copyright
Public Use Permitted.

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