An indoor navigation aid designed for visually impaired people

Öktem, R.; Aydin, Elif; Çağıltay, Nergiz Ercil

doi:10.1109/iecon.2008.4758435

Cited by 13 publications

(5 citation statements)

References 16 publications

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“…[12] An indoor navigation system for visually impaired people constantly tracks the user through an RFID unit and communicated the user to obtain desired destination safely via wireless connection and through a tactile compass. [13] "Blind audio Guidance system" is based on embedded system, uses ultrasonic sensor for distance measurement, IR sensor for object detection and AVR sound system for audio instructions. The main functions of this system are environment recognition and path detection.…”

Section: E Different Gadgets Available In Different Scenariosmentioning

confidence: 99%

Review Paper on Navigation System for Visually Impaired People

Lakde¹,

Prasad²

2015

International Journal of Advanced Research in Computer and Comm

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Mobility of visually impaired people is restricted by their incapability to recognize their surroundings. According to the World Health Organization (WHO) in 2012, out of 7 billion global population there were over 285 million visually impaired people and 39 million were totally blind out of which 19 million are children ( below 15 years). This means that someone in our world goes blind in every five seconds and a child in every minute. Over 90 percent blind children obtain no schooling. Recent survey source India is now became the world's large number of blind people. The population of India has reached 120 Cr. of those 8.90 Cr. people are visually impaired. 90%of those cannot travel independently. In this paper, we present a survey of navigation system of visually impaired people highlighting various technologies with their practical usefulness, design and working challenges and requirements of blind people. The aim of this paper is to provide a better understanding to identify important research directions in this increasingly important social area for future research.

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Section: E Different Gadgets Available In Different Scenariosmentioning

confidence: 99%

Review Paper on Navigation System for Visually Impaired People

Lakde¹,

Prasad²

2015

International Journal of Advanced Research in Computer and Comm

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“…The third group of researchers used active RFID such as that of Oxtem et al [17] which is based on the more costly strategy of distributing transmitters (readers) in the ceiling for triangulation purposes. It then uses the Received Signal Strength Indicator (RSSI) technique to estimate the position of the tag which is carried by a user.…”

Section: Background and Related Workmentioning

confidence: 99%

Indoor navigational aid using active RFID and QR-code for sighted and blind people

Alghamdi

Schyndel

Alahmadi

2013

2013 IEEE Eighth International Conference on Intelligent Sensors, Sensor Networks and Information Processing

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Abstract-The aim of this paper is to describe a new Navigation technique to assist the blind and people with low vision to reach their destinations in an indoor environment. The proposed technique is based on our previous positioning technique using active Radio-frequency identification (RFID) technology. A Global Positioning System (GPS) does not work efficiently in indoor environments. This research produced a navigation service for sighted and blind people to assist them to reach their destination of interest via the shortest path. Tags were distributed at known locations and the mobile reader was carried by a user. The system role is to determine the shortest path to the destination which was indicated by a user. When the shortest path is calculated, the system indicates way points in the path which were represented by active tags in this scenario. Then the users are navigated to these points one by one via QR-Code till they reach their destinations. It was implemented in an indoor environment as a simulation system to navigate the user to particular offices with a successful shortest path identification rate and satisfactory navigation results were achieved.

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“…In general, they do not use visual information and they need complex hardware systems, not only to equip the user but also the building where the navigation has to be accomplished. The system developed byÖktem et al [2] uses wireless communication technology. Another system is [3], where ultrasonic and GPS sensors are used.…”

Section: Introductionmentioning

confidence: 99%

Navigation Assistance for the Visually Impaired Using RGB-D Sensor With Range Expansion

Aladren

López‐Nicolás

Puig

et al. 2016

IEEE Systems Journal

198

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Navigation Assistance for Visually Impaired (NAVI) refers to systems that are able to assist or guide people with vision loss, ranging from partially sighted to totally blind, by means of sound commands. In this paper, a new system for NAVI is presented based on visual and range information. Instead of using several sensors, we choose one device, a consumer RGB-D camera and take advantage of both range and visual information. In particular, the main contribution is the combination of depth information with image intensities resulting in the robust expansion of the range-based floor segmentation. On the one hand, depth information, which is reliable but limited to a short range, is enhanced with the long-range visual information. On the other hand, the difficult and prone to error image processing is eased and improved with depth information. The proposed system detects and classifies the main structural elements of the scene providing the user with obstacle-free paths in order to navigate safely across unknown scenarios. The proposed system has been tested on a wide variety of scenarios and datasets, giving successful results and showing that the system is robust and works in challenging indoor environments.

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An indoor navigation aid designed for visually impaired people

Cited by 13 publications

References 16 publications

Review Paper on Navigation System for Visually Impaired People

Review Paper on Navigation System for Visually Impaired People

Indoor navigational aid using active RFID and QR-code for sighted and blind people

Navigation Assistance for the Visually Impaired Using RGB-D Sensor With Range Expansion

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