Digital Sign System for Indoor Wayfinding for the Visually Impaired

Authors:
B. S. Tjan;P. J. Beckmann;R. Roy;N. Giudice;G. E. Legge
Affiliations:
University of Southern California, Los Angeles;Beckmann Research, LLC;University of Minnesota;University of California, Santa Barbara;University of Minnesota
Venue:
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03
Year:
2005

Citing 0
Cited 11

Search Strategies of Visually Impaired Persons Using a Camera Phone Wayfinding System

ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
A 3D pose estimator for the visually impaired

IROS'09 Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
An orientation service for dependent people based on an open service architecture

USAB'07 Proceedings of the 3rd Human-computer interaction and usability engineering of the Austrian computer society conference on HCI and usability for medicine and health care
Design and Analysis of a Portable Indoor Localization Aid for the Visually Impaired

International Journal of Robotics Research
Development of a shoe-mounted assistive user interface for navigation

International Journal of Sensor Networks
Navigation systems for individuals with visual impairment: a survey

Proceedings of the 2nd International Convention on Rehabilitation Engineering & Assistive Technology
(Computer) vision without sight

Communications of the ACM
The user as a sensor: navigating users with visual impairments in indoor spaces using tactile landmarks

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Integrated online localization and navigation for people with visual impairments using smart phones

ACM Transactions on Interactive Intelligent Systems (TiiS)
A path-guided audio based indoor navigation system for persons with visual impairment

Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility
Seeing Eye Phone: a smart phone-based indoor localization and guidance system for the visually impaired

Machine Vision and Applications

Quantified Score

Hi-index	0.02

Visualization

Abstract

Mobility challenges and independent travel are major concerns for blind and visually impaired pedestrians [1][2]. Navigation and wayfinding in unfamiliar indoor environments are particularly challenging because blind pedestrians do not have ready access to building maps, signs and other orienting devices. The development of assistive technologies to aid wayfinding is hampered by the lack of a reliable and costefficient method for providing location information in an indoor environment. Here we describe the design and implementation of a digital sign system based on low-cost passive retro-reflective tags printed with specially designed patterns that can be readily detected and identified by a handheld camera and machine-vision system. Performance of the prototype showed the tag detection/recognition system could cope with the real-world environment of a typical building.