Mobile objects in indoor environment: Trajectories reconstruction

GPS is the reference for outdoor positioning, implementing direct connection between satellite and receiver device. Indoor positioning raises challenges, locating target devices requiring wireless sensors networks and other technologies. Sensor networks deployed in buildings are commonly used for many applications based on location: surveillance, detection, navigation, etc. These indoor locating sensors generate data related to tracking information. Exploiting this information for investigation issues remains a relevant purpose. This paper context is related to indoor locations systems based on wireless cell, ICCARD sensors and video surveillance cameras. In this context, as no global reference system similar to GPS is available, the location information issued from various devices have neither standards nor common formats, and remain heterogeneous. This paper presents a contribution to extend our framework [24] to information generated by location sensor networks deployed in an indoor environment. The use case is illustrated in a forensic application [1].