An improved object identification for NAVI

Nagarajan, R.; Sainarayanan, G.; Yacoob, S.; Porle, Rosalyn R.

doi:10.1109/tencon.2004.1414455

Cited by 11 publications

(4 citation statements)

References 4 publications

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“…Over the years, many navigational technologies have been developed to aid the blind and people with low vision [2][3][4][5][6][7][8][9]. Much research has been conducted into computer scene-understanding at both a low-and high-level, using many individual modalities such as the navigation tool proposed by Mihajlik [10] which is based on connecting sound generation to a navigation system, using a Digital Signal Processor, and using ultrasonic echolocation which has been applied successfully in mobile robots with a 3D sound generation technique.…”

Section: Related Workmentioning

confidence: 99%

“…An ETA is similar to Mihajlik's device in that both use ultrasonic waves to detect obstacles but ETAs aim to identify objects specifically for visually impaired users. Later research [5] investigated a vision sensor camera to capture images and then process these images and convert them to sound. Almost all this research used a gray level technique to identify objects in images, the 'NAVI' system [5] being a well-known example of this approach.…”

Section: Related Workmentioning

confidence: 99%

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Blind User Response to a Navigational System to Assist Blind People Using Active RFID and QR-Code

Alghamdi¹,

Schyndel²,

Hamilton³

2014

Proceedings of the 8th International Conference on Pervasive Computing Technologies for Healthcare

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In previous papers, we presented a navigational system for use by the blind and people with low vision. The system was built upon two technologies, Radio Frequency Identification (RFID) tags and Quick Response (QR) Codes. The system has been tested by sighted people and it has reached a high level of satisfactory results to identify the current position of the user with an accuracy of less than two meters in most cases, and to safely guide users to a desired destination. The new positioning technique is based on line-of-sight QR code detection, and non-line-of-sight signal attenuation of active RFID tags using a wearable reader. The aim of this paper is to present some user feedback of the system from the blind. One of the significant outcomes of the usability test on blind participants is that the system has to work in an integrated manner in order to achieve the aspirations of the users.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Blind User Response to a Navigational System to Assist Blind People Using Active RFID and QR-Code

Alghamdi¹,

Schyndel²,

Hamilton³

2014

Proceedings of the 8th International Conference on Pervasive Computing Technologies for Healthcare

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“…Several high-technological aid systems for blind people have been developed and made available on the market during the last decades with the aim of providing independency and autonomy to visually impaired persons in their everyday life [17][18][19][20][21][22][23][24][25]. Some of them do not utilize the worldwide known white stick/cane for blind people as part of the technologic aid [26].…”

Section: ) Electronic Stick/canementioning

confidence: 99%

Low-frequency RFID based mobility network for blind people: System description, evolutions and future developments

Faggion

Azzalin

2011

2011 IEEE International Conference on RFID-Technologies and Applications

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In this paper a technologic aid for visually impaired people based on passive low-frequency RFID transponders and its evolution from the first implementation is presented. The system evolution process mainly concerns the adoption of different electronic solutions that took place during the last years in order to produce an independent, fully functional, safe and secure navigation system for blind people. The solid technological bases on which the system relays on make it ready for a wide use among the visually impaired people in their everyday life. New implementations of the system, designed in order to reach a wider potential users community, are presented at the end of the article.

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“…Perhaps the most widely known device is the Laser-Cane or any other electronic cane [2], which might be a regular long cane with a built-in laser ranging system or a Geographic Information System (GIS). Nagarajan R, et al [3] have developed "NAVI: An Improved Object Identification for NAVI" which is a vision substitute system designed to assist blind people for autonomous navigation. Bin Ding, et al [4] proposed a blind navigation system based on Radio Frequency Identification (RFID), wireless and mobile communications technologies.…”

Section: Introductionmentioning

confidence: 99%