Paper Info
Title
A wearable guidance system with interactive user interface for persons with visual impairment
Abstract
We propose a wearable system that helps visually impaired persons to walk to their destination. After a destination is selected, our system computes an optimal path and guides the user with a marker position and its identifier detected by a camera (indoors) or positioning data from a GPS receiver (outdoors). Simultaneously, it utilizes multiple ultrasonic sensors to avoid obstacles lying in the path. In addition, we propose a fast correction algorithm to reduce the positioning error of GPS data and we deploy a map-matching algorithm when the user breaks away from the correct path. We evaluate spatial layout in front of the user on the basis of predefined patterns, and we determine the appropriate avoidance direction by analysing these patterns. The system safely guides a visually impaired person to the destination with interactive user interface.
Year
DOI
Venue
2016
10.1007/s11042-014-2385-4
Multimedia Tools Appl.
Keywords
Field
DocType
Guidance system,Wearable computer,User interface,Multi-sensor interface
Visual impairment,Computer vision,Identifier,Computer science,Wearable computer,Lying,Guidance system,Artificial intelligence,User interface,Assisted GPS,Natural user interface
Journal
Volume
Issue
ISSN
75
23
1380-7501
Citations 
PageRank 
References 
2
0.50
31
Authors
3
Name
Order
Citations
PageRank
Jinhee Lee18021.11
Dongho Kim2469.81
Byeong-Seok Shin313229.65