| 摘要 |
Monitoring system comprising at least one camera (1) for generating a sequence of video images, and a control circuit (2). The control circuit (2) is provided for forming a difference image of two block-structured, consecutive video images and for generating status bits allocated to a stationary or a moving object for each block of a difference image. The control circuit (2) is further used for characterizing, by means of an area mark, contiguous status bits constituting an area and allocated to a moving object for determining an area parameter from the status bill of an area and for triggering an alarm when a predetermined condition of one or more area parameters is reached. <IMAGE> |
