Implementation and Evaluation of an Adaptive CCTV Display System for Incident Detection for the Highways Agency
M.D. Austin, Martin Brock, Edwin Carter, Frances Metcalfe, Liz Orme · 16th ITS World Congress and Exhibition on Intelligent Transport Systems and ServicesITS AmericaERTICOITS Japan · 2009
Adaptive closed circuit television (CCTV) Display aims to allow operators to detect incidents more effectively using existing CCTV cameras. Alerts from CCTV automatic incident detection (AID) systems are combined with other live and historic data to identify sections of the road network where incidents may have occurred. Images of these discrete sections of road are then displayed to operators. Using AID on existing pan-tilt-zoom (PTZ) cameras typically gives an unacceptably high false-alarm rate. This is mitigated by probabilistic data-fusion and an effective but unobtrusive display. A prototype system has allowed operators to detect incidents on average 3 minutes faster than without the system.