| 摘要 |
This invention concerns wide-area video surveillance systems. In a first aspect the invention is a surveillance network, in another aspect the invention is a virtual observer, and in a further aspect the invention is a method for operating a virtual observer. Each segments or frame of video, from each camera of the network is associated with the following trajectory parameters: a time and a spatial position, and possibly a radius, orientation, resolution and field of view, and stored for later recall. |
