Researchers at the Technical University of Munich (TUM) have developed a surprising system to aid visually impaired people, consisting of a 3D camera, worn like glasses, and a haptic feedback sleeve that uses vibrations to signal the presence of obstacles nearby. In a paper shared online on arXiv, in view of forthcoming publication in a scientific journal, Manuel Zahn and Armaghan Ahmad Khan explain how the system works. The obstacle avoidance system combines a 3D camera (Intel RealSense D415) and a haptic feedback sleeve placed on the forearm of the blind or sight-impaired person. This system…