Polish researchers have developed a machine - learning algorithm that can spot the difference between the eyes of a living person and a cadaver , preventing criminals from using a dead person 's eyes to unlock devices . The team used the same camera to capture photos of each , and deleted all of the images except the iris and pupil . The algorithm achieved a 99 % accuracy rate . However , the algorithm could only identify the irises of bodies which had been dead for 16 hours or longer .
Polish researchers have developed a machine-learning algorithm that can spot the difference between the iris of a living person and a cadaver, preventing criminals from using a dead person's eyes to unlock devices. The team used the same camera to take photos of each, and deleted all of the image except the iris and pupil. The algorithm scored a 99% accuracy rate. However, the system could only identify the irises of bodies which had been dead for 16 hours or longer.