Safe Local Navigation for Visually Impaired Users With a Time-of-Flight and Haptic Feedback Device.This paper presents ALVU (Array of Lidars and Vibrotactile Units), a contactless, intuitive, hands-free, and discreet wearable device that allows visually impaired users to detect low- and high-hanging obstacles, as well as physical boundaries in their immediate environment. 
ALVU
Safe Local Navigation for Visually Impaired Users With a Time-of-Flight and Haptic Feedback Device.This paper presents ALVU (Array of Lidars and Vibrotactile Units), a contactless, intuitive, hands-free, and discreet wearable device that allows visually impaired users to detect low- and high-hanging obstacles, as well as physical boundaries in their immediate environment. 
Array of Lidars and Vibrotactile Units