Overview of assistive technologies for the blind: Navigation and shopping

Duarte, Karen; Cecílio, José; Furtado, Pedro

doi:10.1109/icarcv.2014.7064611

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…A number of reviews presented small-scale surveys of a small number of indoor and outdoor navigation systems [ 12 , 13 , 14 ]. While they provided information about technologies and limitations, they did not mention or explore the applied algorithms.…”

Section: Related Workmentioning

confidence: 99%

A Systematic Review of Urban Navigation Systems for Visually Impaired People

El-taher

Taha

Courtney

et al. 2021

Sensors

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Blind and Visually impaired people (BVIP) face a range of practical difficulties when undertaking outdoor journeys as pedestrians. Over the past decade, a variety of assistive devices have been researched and developed to help BVIP navigate more safely and independently. In addition, research in overlapping domains are addressing the problem of automatic environment interpretation using computer vision and machine learning, particularly deep learning, approaches. Our aim in this article is to present a comprehensive review of research directly in, or relevant to, assistive outdoor navigation for BVIP. We breakdown the navigation area into a series of navigation phases and tasks. We then use this structure for our systematic review of research, analysing articles, methods, datasets and current limitations by task. We also provide an overview of commercial and non-commercial navigation applications targeted at BVIP. Our review contributes to the body of knowledge by providing a comprehensive, structured analysis of work in the domain, including the state of the art, and guidance on future directions. It will support both researchers and other stakeholders in the domain to establish an informed view of research progress.

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Section: Related Workmentioning

confidence: 99%

A Systematic Review of Urban Navigation Systems for Visually Impaired People

El-taher

Taha

Courtney

et al. 2021

Sensors

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“…On the other side, RFID tags may have a weakness in their working range. According to Karen Duarte, active tags need external power supply although they cover a larger range [31].…”

Section: Using Digital Signs Color Markers or Rfid Tagsmentioning

confidence: 99%

“…In addition, barcode and QR code identification may be used for products identification [48]. Pawel reviewed the ETA systems in major mobility tasks such as orientation, obstacle avoidance and navigation and discussed their advantages and limitations [31]. It is clear that the previous research work has been mainly focused on pathway finding, obstacle avoiding and outdoor navigation [19].…”

Section: Introductionmentioning

confidence: 99%

Review of machine vision-based electronic travel aids

Fei

Yang

et al. 2017

2017 23rd International Conference on Automation and Computing (ICAC)

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Abstract-Visual impaired people have navigation and mobility problems on roads. Up to now, many approaches have been proposed to help these people navigate around using different sensing techniques. This paper reviews several machine vision-based Electronic Travel Aids (ETAs) and compares them with those using other sensing techniques. The functionalities of machine vision-based ETAs are categorized from low-level image processing such as detection of the road regions and obstacles to high-level functionalities such as recognition of digital tags and texts. In addition, the characteristics of the ETA systems for blind people are discussed.

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SelfLens: A Personal Assistive Technology to Support the Independence of People with Special Needs in Reading Information on Food Items

Galesi

Giunipero²,

Leporini

et al. 2020

Lecture Notes in Computer Science

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Grocery shopping or handling food items (e.g. packets, boxes, etc.) can be a very difficult task for people with special needs. Object labels may contain much information that can be difficult to read because the data shown is a lot, and the text is difficult to read by many people. Blind people are unable to get that information autonomously, and many sighted persons (e.g. elderly people and visually-impaired) may have a lot of difficulty in reading labels. Several tools or applications are available on the market or have been proposed in the literature to support this type of activity (e.g. barcode or QR code reading), but they are limited and may require specific skills by the user. Moreover, repeatedly using an application to read label contents or to get additional information on a product can require numerous actions on a touch-screen device. This can make their use inaccessible or unusable for many users, especially while shopping or cooking. In this work, a portable tool is proposed to support people in simply reading the contents of labels and getting additional information, while they are at home or at the shop. Our study aims to propose a portable assistive technology which can be used by everyone both at home and in the shopping, independently from the personal skills and without requiring no smartphone or complex device, and that is a low-cost solution for the user. Such a product could be very useful for the people independence in a period like that one we are living due to the lockdown required by the Covid-19 situation.

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Overview of assistive technologies for the blind: Navigation and shopping

Cited by 8 publications

References 2 publications

A Systematic Review of Urban Navigation Systems for Visually Impaired People

A Systematic Review of Urban Navigation Systems for Visually Impaired People

Review of machine vision-based electronic travel aids

SelfLens: A Personal Assistive Technology to Support the Independence of People with Special Needs in Reading Information on Food Items

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