Researchers build a $7 smartphone clip-on that spots hidden cameras — AI and dynamic LED grid deliver 94% accuracy
TL;DR
Korean researchers built a smartphone clip-on that spots hidden cameras and costs around 7 dollars. A dynamic LED grid changes the position of the light source while a companion app compares the reflections to identify camera lenses. In testing, the setup reached 94 percent accuracy. So far this is a research prototype with no product on the market.
Nauti's Take
Cheap hardware paired with an app makes counter surveillance affordable for the first time, which is real progress for travelers, hosts and worker representatives. The open question is field performance: 94 percent in a lab means six missed cameras out of a hundred, and a prototype cannot be bought yet.
Anyone checking a room today should pair the method with a scan of the local network.
Sources