Abstract: A system for surveillance of, and taking measures in respect of, phenomena that are observable. The system includes at least one information center with associated cells that can be divided into one or more groups. The system also includes means for communication between an information center and each cell. Each cell includes at least one sensor, with which chemical or physical measuring methods can be used to observe the phenomenon or detect the signals which the phenomenon generates. This system further includes at least three cells that are distributed geographically in the area of interest in a sufficiently dense net. In the cells the signals can be used for determining for example the time, place, intensity or the type of the phenomenon. Data can be transferred from the cells to their respective information center for processing.

Abstract: Image processing means is disclosed for calculating the position and orientation of an object with a known shape using a video signal from a TV-camera steadily aimed at the object. The means have a window memory into which are written several windows that are selected and shaped in advance, each of them covering a part of the picture received from the TV-camera. A window result memory has at least one memory cell per window and can be addressed by the window memory. An adder circuit is at its first input fed with a digital signal based on the in-signal of the TV-camera and at its second input with the contents of the memory cell of the window result memory corresponding to the window containing the pixel of current interest in the signal from the TV-camera. After this accumulating adding, the adder circuit returns the result to the same memory cell in the window result memory.