Every Wi-Fi router, or only routers it's trained on, deployed into rooms it's been trained on with camera footage?
> For their demonstration, the researchers used three $30 WiFi routers and three aligned receivers that bounce WiFI signals around the walls of a room. The system cancels out static objects and focuses on the signals reflected off moving objects, reconstructing the pose of a person in a radar-like image. This was shown to work even if there was a wall between the routers and the subjects.
America's cheap-as-hell apartments could cause even more problems beyond giving apartments a bad rap!