| 摘要 |
A tracking system (10) comprising camera-like observation means (12) adapted to form a picture (14) substantially continuous in time of a field of view 16 in which objects 18 can move. The system also comprises: means (20) to identify the global position 22 in the field of view corresponding to any point (24) in the picture and/or vice versa, and thus to identify the global positions of objects in the field of view relating to images in the picture and/or vice versa; and means to track the movement of such an image in the picture and hence ascertain the global position in the field of view at any time of the object. The object being tracked may be a suspicious vehicle. The system may also comprise means for flagging objects of interest so that they can be tracked across a plurality of images.
|
