Information and Assisted Navigation System for Blind People

Duarte, Karen; Cecílio, José; Silva, Jorge Sá; Furtado, Pedro

doi:10.21307/ijssis-2019-062

Cited by 12 publications

(3 citation statements)

References 5 publications

(2 reference statements)

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“…The environment setting is equipped with an adequate RFID sensor with a Bluetooth connection to the user's smartphone, the system can find the user and send instructions pointing to the desired destination. Important features that users can access about a store, service or available space (Duarte et al, 2014). Almost the same as other application developments that do not use Bluetooth channels, but this Blindshopping application uses a mobile-based QR code (López-De-Ipiña et al, 2011).…”

Section: Assistive Technology Foraccessing Public Servicesmentioning

confidence: 99%

Literature Review: Orientation and Mobility Assistive Technology for Students with Visual Impairment

et al. 2023

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The development of increasingly sophisticated technology is accompanied by the discovery of new assistive devices that should be accessible to all people, including the blind in order to maintain or improve functions so as to improve welfare. This study uses a literature review method with descriptive analysis by analyzing 20 articles. The purpose of this research is to examine more related to assistive technology for the blind in navigating indoors and outdoors including buildings and the accessibility of public services. The literature search was carried out through an electronic search for publications from ERIC, Researchgate, Spingerlink, Sage, Science Direct, Google Scholar and IEEE Xplore. The results of the study describe the use of various assistive technologies for the visually impaired related to navigation in spaces or buildings and even the wider environment as well as public services that are commonly accessed by the public. Furthermore, it is related to the existence of a brief description of the assistive technology developed and the benefits of the results of the development for users.

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Section: Assistive Technology Foraccessing Public Servicesmentioning

confidence: 99%

Literature Review: Orientation and Mobility Assistive Technology for Students with Visual Impairment

et al. 2023

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“…ShopTalk [5], BlindShopping [6], and RoboCart [7] were introduced to locate a specific product in a supermarket by scanning barcodes on the shelves. Likewise data processing based methods presented in [8][9][10][11][12], however these approaches are limited to indoor environments and simulated scenarios only.…”

Section: Related Workmentioning

confidence: 99%

Novel Framework for Outdoor Mobility Assistance and Auditory Display for Visually Impaired People

Khan

Hussain

Khan

et al. 2019

2019 12th International Conference on Developments in eSystems Engineering (DeSE)

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Outdoor mobility of Visually Impaired People (VIPs) has always been challenging due to the dynamically varying scenes and environmental states. Variety of systems have been introduced to assist VIPs' mobility that include sensor mounted canes and use of machine intelligence. However, these systems are not reliable when used to navigate the VIPs in dynamically changing environments. The associated challenges are the robust sensing and avoiding diverse types of obstacles, dynamically modelling the changing environmental states (e.g. moving objects, road-works), and effective communication to interpret the environmental states and hazards. In this paper, we propose an intelligent wearable auditory display framework that will process real-time video and multi-sensor data streams to: a) identify the type of obstacles, b) recognize the surrounding scene/objects and corresponding attributes (e.g. geometry, size, shape, distance from user), c) automatically generate the descriptive information about the recognized obstacle/objects and attributes, d) produce accurate, precise and reliable spatial information and corresponding instructions in audiovisual form to assist and navigate VIPs safely with or without the assistance of traditional means.

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“…Independent travel presents significant challenges for the blind or vision-impaired person. Many research efforts have been conducted to help blind or visually impaired people with daily activities such as grocery shopping [7], indoor navigation and wayfinding [4,14,15,17,18,20,25,26,28,29,30], and outdoor navigation [5]. Tian et al [7] developed an assistive indoor navigation system by detecting doors and elevators and recognizing the corresponding text descriptions.…”

Section: Introductionmentioning

confidence: 99%

Recognizing Elevator Buttons and Labels for Blind Navigation

Liu¹,

Tian²

2020

IJCA

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In this paper, a cascade framework is proposed to detect elevator buttons and recognize their labels from images for blind navigation. First, a pixel-level mask of elevator buttons is segmented based on deep neural networks. Then a fast scene text detector is applied to recognize the text labels in the image as well as to extract their spatial vectors. Finally, all the detected buttons and their associated labels are paired by combining the button mask and spatial vectors of labels based on their location distribution. The cascade framework is conducive to multitask but the accuracy may decrease task by task. To avoid the limitation of the intermediate task, a new schema is further introduced by pairing buttons with their labels to consider the region of button and label as a whole. First, the regions of button-label pairs are detected and then the label for each pair is recognized. To evaluate the proposed method, an elevator button detection dataset is collected including 1,000 images containing buttons captured from both inside and outside of elevators with annotations of button locations and labels and 500 images are captured in elevators but without button buttons which are used for negative images in the experiments. Preliminary results demonstrate the robustness and effectiveness of the proposed method for elevator button detection and associated label recognition.

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Information and Assisted Navigation System for Blind People

Cited by 12 publications

References 5 publications

Literature Review: Orientation and Mobility Assistive Technology for Students with Visual Impairment

Literature Review: Orientation and Mobility Assistive Technology for Students with Visual Impairment

Novel Framework for Outdoor Mobility Assistance and Auditory Display for Visually Impaired People

Recognizing Elevator Buttons and Labels for Blind Navigation

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