A distributed protocol for object tracking in wireless multimedia sensor networks

Liu, Junbin, O'Rourke, Damien, Wark, Tim, Denman, Simon, & Sridharan, Sridha (2010) A distributed protocol for object tracking in wireless multimedia sensor networks. In Intelligent Sensors, Sensor Networks and Information Processing (ISSNIP), 2010 6th International Conference, IEEE, Brisbane, Australia, pp. 67-72.

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We consider the problem of object tracking in a wireless multimedia sensor network (we mainly focus on the camera component in this work). The vast majority of current object tracking techniques, either centralised or distributed, assume unlimited energy, meaning these techniques don't translate well when applied within the constraints of low-power distributed systems. In this paper we develop and analyse a highly-scalable, distributed strategy to object tracking in wireless camera networks with limited resources. In the proposed system, cameras transmit descriptions of objects to a subset of neighbours, determined using a predictive forwarding strategy. The received descriptions are then matched at the next camera on the objects path using a probability maximisation process with locally generated descriptions. We show, via simulation, that our predictive forwarding and probabilistic matching strategy can significantly reduce the number of object-misses, ID-switches and ID-losses; it can also reduce the number of required transmissions over a simple broadcast scenario by up to 67%. We show that our system performs well under realistic assumptions about matching objects appearance using colour.

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ID Code: 40174
Item Type: Conference Paper
Refereed: No
DOI: 10.1109/ISSNIP.2010.5706756
ISBN: 978-1-4244-7174-4
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Computer Vision (080104)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Institutes > Information Security Institute
Past > Schools > School of Engineering Systems
Deposited On: 17 Feb 2011 01:04
Last Modified: 29 Feb 2012 14:31

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