Strategie de communication inter-noeuds pour un systeme de surveillance video faiblement couple (French text)

Problem. Tracking people in complex environments is an important problem in several areas: security in public places, military interventions in urban areas or in assisting people experiencing a loss of autonomy. Our project is part of the MONNET project which aims to develop a system for tracking people. This system is composed of an ensemble of nodes each equipped with visible and infrared cameras as well as a calculation unit for the processing of video sequences. These nodes are connected together in a network and exchange information on people who are moving within their field of view. The network is composed of these nodes which are loosely coupled since each node is an independent component of the network, but is able to exchange information with the other nodes so as to enable a more complete tracking of people. Moreover, the fields of view of the nodes are not necessarily overlapping, which implies that the system must be able to treat information while taking into account the non-observed zones of the environment. Our project consists in studying the aspects related to the communication...between loosely coupled nodes and to define an exchange protocol enabling the nodes to exchange relevant information regarding the static and dynamic appearance of people who are moving within their field of view. (Abstract shortened by UMI.)...