This is the most closely watched city in the world, 1 camera will monitor 6 citizens
the entire city with a population of 15.35 million is closely monitored by 2.58 million surveillance cameras, the equivalent of each camera will monitor 6 citizens.
Tags : surveillance camera systems
China's 170 million surveillance camera system can find BBC correspondents in just 7 minutes
the camera system with advanced facial recognition technology and artificial intelligence has surprised many people when it took only 7 minutes to find a bbc correspondent in a