scholarly journals VIDVIP: Dataset for Object Detection During Sidewalk Travel

2021 ◽  
Vol 33 (5) ◽  
pp. 1135-1143
Author(s):  
Tetsuaki Baba ◽  
Keyword(s):  
Visually Impaired ◽  
Large Scale ◽  
General Purpose ◽  
Obstacle Detection ◽  
Assistive Technologies ◽  
Navigation Systems ◽  
Automated Driving ◽  
Mobility Support ◽  
Development Costs ◽  
Visually Impaired Persons

In this paper, we report on the “VIsual Dataset for Visually Impaired Persons” (VIDVIP), a dataset for obstacle detection during sidewalk travel. In recent years, there have been many reports on assistive technologies using deep learning and computer vision technologies; nevertheless, developers cannot implement the corresponding applications without datasets. Although a number of open-source datasets have been released by research institutes and companies, large-scale datasets are not as abundant in the field of disability support, owing to their high development costs. Therefore, we began developing a dataset for outdoor mobility support for the visually impaired in April 2018. As of May 1, 2021, we have annotated 538,747 instances for 32,036 images in 39 classes of labels. We have implemented and tested navigation systems and other applications that utilize our dataset. In this study, we first compare our dataset with other general-purpose datasets, and show that our dataset has properties similar to those of datasets for automated driving. As a result of the discussion on the characteristics of the dataset, it is shown that the nature of the image shooting location, rather than the regional characteristics, tends to affect the annotation ratio. Accordingly, it is possible to examine the type of location based on the nature of the shooting location, and to infer the maintenance statuses of traffic facilities (such as Braille blocks) from the annotation ratio.

scholarly journals Conceptual design and implementation of electronic spectacle based obstacle detection for visually impaired persons

2016 ◽  
Vol 10 (7) ◽  
pp. JAMDSM0094-JAMDSM0094
Author(s):  
Anuar MOHAMED KASSIM ◽  
Takashi YASUNO ◽  
Hiroshi SUZUKI ◽  
Mohd SHAHRIEEL MOHD ARAS ◽  
Hazriq IZZUAN JAAFAR ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Visually Impaired ◽  
Obstacle Detection ◽  
Design And Implementation ◽  
Visually Impaired Persons

scholarly journals Wearable Radar System Design on Semi-Flexible PCB for Visually Impaired People

2022 ◽  
Vol 2 ◽  
Author(s):  
Haoran Zhang ◽  
Yiming Yang ◽  
Jiahao Zhou ◽  
Atif Shamim
Keyword(s):  
Antenna Array ◽  
Visually Impaired ◽  
Complete System ◽  
Obstacle Detection ◽  
Detection Range ◽  
Mimo Antenna ◽  
Visually Impaired People ◽  
Impaired People ◽  
Visually Impaired Persons ◽  
Flexible Pcb

This paper presents a compact and wearable frequency-modulated continuous-wave (FMCW) radar on a semi-flexible printed circuit board (PCB) for an anti-collision system. This can enable visually impaired people to perceive their environment better and more safely in their everyday lives. In the proposed design, a multiple-input multiple-output (MIMO) antenna array with four receivers (RXs) and three transmitters (TXs) has been designed to achieve obstacle-detection ability in both horizontal and vertical planes through a specific geometrical configuration. Operating at 76–81 GHz, an aperture coupled wide-beam patch antenna with two parasitic patches is proposed for each channel of RXs and TXs. The fast Fourier transform (FFT) algorithm has been implemented in the radar chip AWR1843 for intermediate frequency (IF) signals to generate a range-Doppler map and search precise target angles in high sensitivity. The complete system, which includes both the MIMO antenna array and the radar chip circuit, is utilized on a six-layer semi-flexible PCB to ensure compactness and ease in wearability. Field testing of the complete system has been performed, and an obstacle-detection range of 7 m (for humans) and 19 m (for larger objects) has been obtained. A wide angular detection range of 64-degree broadside view (±32°) has also been achieved. A voice module has also been integrated to deliver the obstacle’s range and angle information to visually impaired persons.

scholarly journals Unseen - Digital interactions for low vision spatial engagement

2021 ◽  
Author(s):  
◽  
Zachary Cooper
Keyword(s):  
Visually Impaired ◽  
Vision Loss ◽  
Detection System ◽  
Assistive Technologies ◽  
Design Strategies ◽  
Design Work ◽  
Spatial Understanding ◽  
Human Scale ◽  
Wide Range ◽  
Visually Impaired Persons

<p>Visually impaired persons possess a specific set of functional and sensory requirements for their successful existence in architectural environments. Unfortunately, a majority of our existing built infrastructure is ill-equipped to address these requirements. Both existing forms of solution for this issues, technological and architectural, are incapable of compensating for the inadequately considered design of public spaces and are subject to widespread general criticisms from the vision loss and architectural community (Human Rights Commission, 2012; Pawluk et al., 2015).   This thesis recruits the native capabilities of emerging consumer-level digital technologies in order to explore new solutions to this complex problem. This research saw the proposition tested through the development of a digital platform which blended the design strategies of universal design and assistive technologies with a wide range of theoretical perspectives drawn from medical, psychological, sociological, and geolocational literature. The resulting integration generated unique forms of architectural engagement which improve the spatial comprehension abilities of the visually impaired.  The early design outcomes focus on two distinct modes of engagement with a virtual, augmented environment. The first is direct bodily interaction, in which the human-scale perception of the user is bolstered through an object-detection system, which provides users with sensory cues to identify objects in their direct vicinity. The second was the development of various methods for distance-based spatial engagements. Engagement with an environment from a distance significantly expands the scale of potential spatial understanding. These methods allow users to explore spaces in a myriad of different ways, with each mechanic providing different environmental information through diverse sensory outputs. The later design work reflects on these creations and through a process of redevelopment and evaluation draws larger observations regarding the development of the tools and what they offer in terms of spatial understanding. Final conclusions from the thesis provide a framework for research which would allow for the digital adaptation of our currently unsuitable infrastructure.</p>

scholarly journals Indoor Navigation Systems for Visually Impaired Persons: Mapping the Features of Existing Technologies to User Needs

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 636 ◽  
Author(s):  
Darius Plikynas ◽  
Arūnas Žvironas ◽  
Andrius Budrionis ◽  
Marius Gudauskis
Keyword(s):  
Visually Impaired ◽  
Evaluation Criteria ◽  
Indoor Navigation ◽  
Public Institutions ◽  
Indoor Environments ◽  
Navigation Systems ◽  
Global Positioning ◽  
Visually Impaired Persons ◽  
Head Level ◽  
Outdoor Navigation

Currently, several outdoor navigation and orientation electronic traveling aid (ETA) solutions for visually impaired (VI) people are commercially available or in active development. This paper’s survey of blind experts has shown that after outdoor navigation, the second most important ETA feature for VI persons is indoor navigation and orientation (in public institutions, supermarkets, office buildings, homes, etc.). VI persons need ETA for orientation and navigation in unfamiliar indoor environments with embedded features for the detection and recognition of obstacles (not only on the ground but also at head level) and desired destinations such as rooms, staircases, and elevators. The development of such indoor navigation systems, which do not have Global Positioning System (GPS) locational references, is challenging and requires an overview and evaluation of existing systems with different navigation technologies. This paper presents an evaluation and comparison of state-of-the-art indoor navigation solutions, and the research implications provide a summary of the critical observations, some insights, and directions for further developments. The paper maps VI needs in relation to research and development (R&D) trends using the evaluation criteria deemed most important by blind experts.

scholarly journals OBSTACLE DETECTION AND ELECTRONIC NAVIGATION SYSTEM FOR VISUALLY IMPAIRED PERSONS

2014 ◽  
pp. 151-153
Author(s):  
PRATEEK MISHRA ◽  
RAJ KISHOR PAL ◽  
SHIVOM KUSHWAHA ◽  
TUSHAR SRIVASTAVA ◽  
SURESH SHARMA
Keyword(s):  
Real Time ◽  
Navigation System ◽  
Visually Impaired ◽  
Detection System ◽  
Obstacle Detection ◽  
Final Destination ◽  
Visually Impaired People ◽  
The Common ◽  
Impaired Person ◽  
Visually Impaired Persons

In This Paper we present a real time domain obstacle detection system for the visually impaired persons to improve their mobility in daily life with the help of obstacle detection sensor installed in their walking stick .System is having a lower cost so it is easily purchasable so it can have a major significance in life of visually impaired persons. This Paper proposes a system to detect any object attached to the floor regardless to their height [1]. Obstacle on the floor in the front of user can be reliably detected in real time using the proposed system implemented by the IR sensor installed on the walk stick of the visually impaired person. Project also contains a navigation system for visually impaired persons to make the life of such persons easier up to some extent. This project is suited for the area where the possibility of blind person is high (like blind school, college)[6]. For transport facility of blind we have first decided the common bus roots of blind then we have placed RF tag to all those buses with unique code. At the second side we have placed RF reader, microcontroller and voice processor. The RF reader receive unique code, microcontroller process this code with defined code, if match found, voice processor get activated and starts speaking bus name, initial destination and final destination. The obstacle detection is also included in the project with voice. The system aims at increasing the mobility of visually impaired people by offering new sensing abilities.

scholarly journals Promoção da saúde da pessoa com deficiência visual: análise conceitual

2020 ◽  
Vol 10 (30) ◽  
pp. 222-234
Author(s):  
Andressa Kaline Ferreira Araújo Jales ◽  
Harlon França de Menezes ◽  
Hosana Lourenço da Silva ◽  
Olga Alice Alencar Moreira ◽  
Bruna Maria Oliveira Merces ◽  
...  
Keyword(s):  
Health Promotion ◽  
Health Education ◽  
Visually Impaired ◽  
Assistive Technologies ◽  
Calidad De Vida ◽  
Visually Impaired People ◽  
Concept Of Health ◽  
Health Nursing ◽  
Impaired Person ◽  
Visually Impaired Persons

Analisar o conceito de promoção da saúde da pessoa com deficiência visual segundo Walker e Avant. Após delimitação do conceito a ser analisado, foi realizada revisão integrativa da literatura em seis bases de dados utilizando-se os descritores: pessoa com deficiência visual e promoção da saúde. Procedeu-se à análise do conceito mediante leitura dos artigos selecionados. Educação em saúde e tecnologias assistivas adaptadas às pessoas com deficiência visual e, ações de prevenção foram identificados como atributos essenciais. Necessidades de acessibilidade, de promoção da saúde de forma acessível e de reorientação dos serviços de saúde contemplaram os principais antecedentes; e, mudanças de comportamento, empoderamento e melhoria da qualidade de vida foram definidos como consequentes. Promoção da saúde da pessoa com deficiência visual está relacionada a ações de educação em saúde e de prevenção acessíveis ao público alvo com vistas a assegurar efetivo exercício de sua cidadania.Descritores: Promoção da Saúde, Pessoas com Deficiência Visual, Enfermagem em Saúde Pública. Promotion of personal health with visual disabilities: conceptual analysisAbstract: To analyze the concept of health promotion of the visually impaired person according to Walker and Avant. After delimiting the concept to be analyzed, an integrative literature review was carried out in six databases using the descriptors visually impaired person and health promotion. The analysis of the concept was performed by reading the selected articles. Health education and assistive technologies adapted to visually impaired people and prevention actions were identified as essential attributes. Accessibility needs, health promotion in an accessible way, and reorientation of health services contemned the main antecedents; And, behavioral changes, empowerment, and improvement of quality of life were defined as consequent. Promotion of the health of the visually impaired person is related to actions of health education and prevention accessible to the target public with a view to ensuring the effective exercise of their citizenship.Descriptors: Health Promotion, Visually Impaired Persons, Public Health Nursing. Promoción de la salud de la persona con discapacidad visual: análisis conceptualResumen: Analizar el concepto de promoción de la salud de la persona con discapacidad visual según Walker y Avant. Después de delimitar el concepto a analizar, se llevó a cabo revisión de la literatura integradora en seis bases de datos utilizando los descriptores: persona con discapacidad visual y la promoción de la salud. Procedió el análisis del concepto leyendo los artículos seleccionados. La educación en saúde y las tecnologías de asistencia adaptadas a las personas con discapacidad visual y las acciones de prevención se identificaron como atributos esenciales. Las necesidades de accesibilidad, la promoción de la salud de manera accesible y la reorientación de los servicios de salud condenó a los principales antecedentes; y, los cambios de comportamiento, el empoderamiento y la mejora de la calidad de vida se definieron como consecuentes. Promoción de la salud de las personas con discapacidad visual está relacionada con acciones de educación y prevención de la salud accesibles al público objetivo con el fin de garantizar el ejercicio efectivo de su ciudadanía.Descriptores: Promoción de la Salud, Personas Con Daño Visual, Enfermería en Salud Pública.

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