In a city like Paris there are 0.75 security cameras for every square kilometer, while in New York it is 0.5 and in Los Angeles 0.1.
This was stated in a study by Stanford University presented at the AAAI / ACM Conference on Artificial Intelligence, Ethics and Society, which is
The millions of cameras installed around the world can play a crucial role in crime prevention, the study authors point out, but, especially when combined with facial recognition technologies, they can also significantly decrease citizens' privacy. The research used images from Google street view and other similar platforms, which were analyzed by artificial intelligence to 'hunt' for cameras. The researchers extracted a sample of 100,000 images from 10 US cities and 6 from the rest of the world (Paris, London, Singapore, Seoul, Tokyo and Bangkok), thus identifying the density of the cameras. The most 'controlled' was Seoul, with 0.85 rooms per square kilometer on average, followed closely by Paris.
The study also made it possible to estimate which are the areas with the highest density within the cities. "We found a much higher density in areas with many ethnic minorities rather than in the predominantly white ones - explain the authors to the TechXplore site -. We are trying to understand the mechanism behind this trend".
