Visual tracking using Sensor Networks

Abstract

New1 trends in Wireless Sensor Networks envisage deployments for distributed applications requiring real-time support at the kernel level and Quality of Service at the network level.In this domain, at the design stage, particular attention must be devoted to individual data packets as those entities carrying unique (not redundant) information. The performances of the deployed system (hereby felt as a black box) must be tracked against the reliability and timeliness offered in message delivery.A Visual Tracking case study is discussed throughout this paper with the support of a simulation package modelling real-time scheduling policies at the device node kernels and bandwidth allocation techniques for network reliable communications as standardized in the IEEE 802.15.4 suite of protocols.A set of results is carried out estimating the performances of the Visual Tracking system in two contexts (those of a monitored junction in an airport taxiway and in a parking area) very different for criticality and average volume of network traffic.

Visual sensor networks for infomobility

“…A successful design and development of such a sys tem cannot be achieved without suitable solutions to the involved computer vision problems. Although the computer vision problems may be still decomposed into basic computational tasks (such us feature extrac tion, object detection and object recognition), in the context of visual WSNs, it is not directly possible to use all the methods that have been developed to solve such tasks and that are already available in the specific liter ature [5]. Indeed, since WSNs usually require a large number of sensors, possibly scattered over a large area, the unit cost of each device should be small to make the technology affordable.…”