We present a wearable assistance system for visually impaired persons that perceives the environment with a stereo camera and communicates obstacles and other objects to the user. We develop our idea of combining perception on an increased level of scene understanding with acoustic feedback to obtain an intuitive mobility aid. We describe our core techniques of scene modelling, object tracking, and acoustic feedback and show in an experimental study how our system can help improving the mobility and safety of visually impaired users.
['Tobias Schwarze', 'Martin Lauer', 'Manuel Schwaab', 'Michailas Romanovas', 'Sandra Böhm', 'Thomas Jürgensohn']
An Intuitive Mobility Aid for Visually Impaired People Based on Stereo Vision