Sensor node localisation using a stereo camera rig
Diamond, Dermot and O'Connor, Noel E. and Smeaton, Alan F. and Beirne, Stephen and Corcoran, Brian and Kelly, Philip and Lau, King-Tong (2007) Sensor node localisation using a stereo camera rig. In: EmNets 2007 - The 4th Workshop on Embedded Networked Sensors, 25-26 June 2007, Cork, Ireland.
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In this paper, we use stereo vision processing techniques to
detect and localise sensors used for monitoring simulated
environmental events within an experimental sensor network testbed. Our sensor nodes communicate to the camera through patterns emitted by light emitting diodes (LEDs). Ultimately, we envisage the use of very low-cost, low-power,
compact microcontroller-based sensing nodes that employ
LED communication rather than power hungry RF to transmit data that is gathered via existing CCTV infrastructure.
To facilitate our research, we have constructed a controlled
environment where nodes and cameras can be deployed and
potentially hazardous chemical or physical plumes can be
introduced to simulate environmental pollution events in a
controlled manner. In this paper we show how 3D spatial
localisation of sensors becomes a straightforward task when
a stereo camera rig is used rather than a more usual 2D
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