Drone Achieves Near-Invisibility Using Optical Illusion

Northwestern University researchers have unveiled a groundbreaking drone, dubbed the Phantom Twist, engineered to achieve near-invisibility. This UAV exploits visual perception by rotating its body and propeller in opposing directions at speeds up to 25 times per second. This rapid motion creates an optical illusion, making it approximately ten times less visible than standard quadcopters and blending seamlessly into backgrounds. Its stealth capabilities, however, are limited by audible whirring and still-visible wires and support rods.

The Phantom Twist was introduced to the public at the Robotics: Science and Systems conference held in Sydney, Australia. The research team presented their findings in a talk titled "Computational Design of a Low-Visibility UAV Using Human-Aligned Perceptual Metric." This project, partly supported by the National Science Foundation, was a collaborative effort by members of Northwestern's McCormick School of Engineering's Center for Robotics and Biosystems.