Review of Navigation Assistive Tools and Technologies for the Visually Impaired

Area of Science:

• Assistive Technology
• Rehabilitation Engineering
• Human-Computer Interaction

Background:

• Visually impaired individuals face significant mobility challenges, impacting daily life and independence.
• The increasing prevalence of visual impairment necessitates advanced assistive solutions.
• Restricted mobility can lead to decreased confidence and social participation.

Purpose of the Study:

• To review current mobility assistive technologies for the visually impaired.
• To analyze indoor and outdoor navigation aids and their feedback mechanisms.
• To provide a comprehensive overview of state-of-the-art assistive tools.

Main Methods:

• Literature review of recent assistive technologies for visual impairment.
• Analysis of various navigation techniques and location-based systems.
• Categorization of assistive tools for indoor and outdoor environments.

Main Results:

• Identified diverse mobility assistive technologies, including electronic travel aids and navigation systems.
• Detailed various location sensing and feedback methods (e.g., haptic, auditory).
• Evaluated the effectiveness of different technologies for enhancing independent travel.

Conclusions:

• Current assistive technologies offer significant potential to improve mobility for the visually impaired.
• Further research and development are needed to refine navigation accuracy and user experience.
• Future recommendations focus on integrated systems and personalized feedback for enhanced safety and confidence.