Ключевые слова: angle, architecture, art, building, camera, cctv, city, city life, commercial, computer, confidence, confidential, connection, control, crime, danger, data, design, device, electronic, equipment, exterior, gray, guard, home, house, lens, observe, office, ornaments, private, property, protect, record, safe, safety, security, shadow, structure, surveillance, system, technology, television, travel, two, usa, video, wall, watch,