Title
Synchronisation of vision-based sensor networks with variable frame rates
Abstract
This paper introduces a synchronisation methodology for distributed vision-based sensor networks with clock skew or variable frame rates. The methodology requires a ballistic or otherwise predictive object to be tracked by the sensor network and used to calibrate the clock skew and/or relative variable frame rates between the cameras. The relative time stamp of each image captured can be extracted using the dynamic model of the predictive object. The time stamps and a best fit correlation are used to synchronise all the cameras (and their video streams) that are tracking the same predictive object. In sport the predictive object is likely to be a ballistic object such as a ball or a player in flight, while in security applications, the predictive object may be trains, cars or other objects travelling at predictable speeds in known locations.
Year
DOI
Venue
2010
10.1504/IJCAT.2010.034744
IJCAT
Keywords
DocType
Volume
time stamp,relative variable frame rate,vision-based sensor network,synchronisation methodology,clock skew,ballistic object,variable frame rate,sensor network,predictive object,relative time stamp,pixel,synchronization,trajectory,object recognition,wireless sensor networks,tracking,calibration,computer vision,synchronisation
Journal
39
Issue
ISSN
Citations 
1/2/3
0952-8091
3
PageRank 
References 
Authors
0.39
7
1
Name
Order
Citations
PageRank
C. H. Messom1356.04