AN IMPROVED SURVEILLANCE SYSTEM

摘要

A surveillance system is described. The system includes an imaging means which scans a scene in a sequence or matrix of contiguous images. Each image is compared to a previously collected reference image which allows the system to gauge whether there is some form of activity, object or other triggering event occurring in the location. When such an event or visual occurrence is detected the system uses an imaging means (possibly a second or additional imaging means) to zoom in on the area or particular matrix in which the event has occurred. The image thus obtained may then be analysed to determine what type of activity or object has been detected in the particular matrix or image. The system can be used for surveillance of coastal regions, battlefields and other sensitive areas. An example of a suitable imaging means is a 200mn f/1 lens.