Van Den Hengel, A.Hill, R.Detmold, H.Dick, A.Sorell, M.White, L.2009-12-082009-12-082008Proceedings of the 1st international conference on Forensic applications and techniques in telecommunications, information, and multimedia and workshop, 21-23 January, 2008 pp.1-69789639799196http://hdl.handle.net/2440/54523The use of surveillance cameras to monitor public buildings and urban areas is becoming increasingly widespread. Each camera delivers a continuous stream of video data, which, once archived, is a valuable source of information for forensic analysis. However, current video analysis tools are primar- ily based on searching backwards and forwards in time at a single location (i.e. camera), which does not account for events or people of interest that change location over time. In this paper we describe a practical system for tracking a target backwards and forwards in both space and time, ef- fectively following a feature of interest as it moves within and between cameras in a surveillance network. This pro- vides a video analysis tool that is target-centred rather than camera-centred, and thus allows rapid access to the footage that matters for forensic analysis.endistributed systemsforensicssurveillanceSearching in space and time: a system for forensic analysis of large video repositoriesConference paper002008551710.4108/e-forensics.2008.27132-s2.0-7996073702239924Van Den Hengel, A. [0000-0003-3027-8364]Dick, A. [0000-0001-9049-7345]