What is it about?
Safe navigation for individuals with visual impairments remains a critical challenge, particularly in detecting head-level obstacles not addressed by traditional mobility aids. We introduce GuideTouch – a compact, standalone wearable device for obstacle avoidance via haptic feedback. The device integrates two vertically aligned Time-of-Flight sensors for 3D environmental sensing and four vibrotactile actuators positioned on the upper torso to deliver intuitive directional haptic feedback. To ensure reliability in daily use, the system includes a self-cleaning optical cover mechanism and a sound alarm for device retrieval if dropped. The haptic interface was evaluated with 22 participants, demonstrating an average recognition accuracy of 92.9% for simpler patterns and 78.4% for all patterns. A study with 14 visually impaired users confirmed the interface’s usability, with 93.75% recognition accuracy. The results demonstrate that GuideTouch enables intuitive spatial perception and could significantly improve the safety and autonomy of users with visual impairments.
Featured Image
Photo by CDC on Unsplash
Why is it important?
Our experiments and user studies showed that our device can reduce the risk of head and body injuries for visually impaired people. It can greatly increase their ability to navigate the environment safely and independently.
Perspectives
I hope this article can help further the assistive technologies for visually impaired. During the work on this article, scientific group interested in assistive technologies was formed, with whom I hope to further conduct research on socially important topics.
Timofei Kozlov
Skolkovo Institute of Science and Technology
Read the Original
This page is a summary of: GuideTouch: An Obstacle Avoidance Device for Visually Impaired, March 2026, ACM (Association for Computing Machinery),
DOI: 10.1145/3776734.3794521.
You can read the full text:
Contributors
The following have contributed to this page
