some sort of you know each output of the network has some sort of window of influence on the input which in this case is actually quite large so to decide of the category of a single pixel the the network here looks at a wide contextual window around this pixel and and then gives you an output for that particular pixel and and this is done sort of conditionally so it's very cheap so the system that was built about ten years ago and it could run at about thirty frames per second on a on the specialized Hardware actually an FPGA