Smartphone Add-On Detects Hidden Cameras with 94% Accuracy

Researchers from KAIST and Singapore created SweepLED, a smartphone case with 15 LEDs that finds hidden cameras by analyzing lens glare. Accuracy is about 94%, scanning an object takes 5 seconds, and the hardware costs approximately $7.

• 15 LEDs in the case illuminate the object from different angles in 5 seconds
• AI model analyzes changes in glare, not a single frame
• Hidden camera detection accuracy is about 94% on 30 objects
• Hardware cost of the prototype is approximately $7