In a method of determining a deviation of a path of a projectile from a predetermined path, the method uses an image of a target area in which the desired path or direction is pointed out. A depression portion is formed to the casing of the housing. The casing parts are composed of a low-pressure injection molding compound and are formed by a low-pressure injection molding operation. Clustering is used to divide the allocation problem into simpler sub-problems, for which determining optimal allocations is simpler and faster. In one application, the imaging system is used in conjunction with a lane tracking system image processing application to detect roadway lane markings from a moving vehicle. Reliable transmission between nodes of a communication network is ensured by encapsulating a network interface of at least one of the nodes, and by ensuring a minimal functionality of the network interface.