Ключевые слова: abstract, alarm, background, blue, blur, blurred, bokeh, camera, cctv, chicago, city, cityscape, colorful, control, crime, dark, defocused, electronic, equipment, focus, glowing, guard, illuminated, industry, landscape, lens, light, lights, modern, monitor, monitoring, night, nightlife, observe, photo, privacy, property, protect, protection, record, safety, security, shiny, skyline, spy, surveillance, system, technology, urban, video,