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Sensors 2017, 17(3), 565; doi:10.3390/s17030565

Sensor-Based Assistive Devices for Visually-Impaired People: Current Status, Challenges, and Future Directions

Department of Computer Science and Engineering, University of Bridgeport, Bridgeport, CT 06604, USA
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Author to whom correspondence should be addressed.
Academic Editor: Panicos Kyriacou
Received: 23 January 2017 / Revised: 25 February 2017 / Accepted: 1 March 2017 / Published: 10 March 2017
(This article belongs to the Collection Sensors for Globalized Healthy Living and Wellbeing)

Abstract

The World Health Organization (WHO) reported that there are 285 million visuallyimpaired people worldwide. Among these individuals, there are 39 million who are totally blind. There have been several systems designed to support visually-impaired people and to improve the quality of their lives. Unfortunately, most of these systems are limited in their capabilities. In this paper, we present a comparative survey of the wearable and portable assistive devices for visuallyimpaired people in order to show the progress in assistive technology for this group of people. Thus, the contribution of this literature survey is to discuss in detail the most significant devices that are presented in the literature to assist this population and highlight the improvements, advantages, disadvantages, and accuracy. Our aim is to address and present most of the issues of these systems to pave the way for other researchers to design devices that ensure safety and independent mobility to visually-impaired people. View Full-Text
Keywords: assistive devices; visually-impaired people; obstacles detection; navigation and orientation systems; obstacles avoidance assistive devices; visually-impaired people; obstacles detection; navigation and orientation systems; obstacles avoidance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Elmannai, W.; Elleithy, K. Sensor-Based Assistive Devices for Visually-Impaired People: Current Status, Challenges, and Future Directions. Sensors 2017, 17, 565.

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