Engineers taught a neural network to kill cockroaches with a laser.

The YOLOv4 neural network was trained to distinguish cockroaches in the frame. Then she was connected to cameras that broadcast live video. When a cockroach enters the lens, the device calculates its location and sends a command to the laser and mirror. The insect detection accuracy is one centimeter at a distance of ten meters. The laser beam destroys the cockroach in a second. But sometimes it can get into the limbs - then the insect has a chance to escape.