| 摘要 |
Apparatus for viewing a target area and for providing a reaction consequent on a changing image in the target area (1), said apparatus having means (3) for viewing the target area (1) and for creating video picture frame signal of the target area, analysing means (7, 9, 11, 13, 14, 15, 17, 21, 31) for analysing the signals relating to one or more of discrete area within each picture frame, said analysing means having feeding means (13, 14, 15, 17) for feeding control signals to a reaction providing means (19, 5) to provide a change in said reaction consequent on there being an image change in the one or more discrete areas from an earlier frame. |
