Design of Portable and Accessible Platform in Charge of Wheelchair Feedback Immersion

Rewarded at Laval Virtual 2014, the AccesSim project aims to develop a wheelchair simulator based on Virtual Reality (VR) and a dynamic force­‐feedback platform, which allows to experience and to evaluate the accessibility in complex urban or property environment. In order to address this issue, the dynamic force-­feedback platform should provide haptic and vestibular feedback to various user profiles: from town‐planners to wheelchair users. The platform needs to be modular and adjustable to each of these profiles. This article focuses on the dynamic force­‐feedback platform and specifically on the force­‐feedback systems used.Ile‐De­‐France region, EDF R&D (project leader), LISV (UVSQ), LAMPA (Arts & Métiers ParisTech), CEREMH, CEA-­LIST

Paralympic VR: an immersive experience

Paralympic VR: an immersive experience is based on exploratory research and consists in the production of a 360 video-prototype that aims to give special access to the wheelchair basketball training universe, bringing the users close to Paralympic athletes without the need to hide the impairment or hyper focus on the stories behind the disability. Media coverage of Paralympic sports and the representation of disabled athletes have been changing, but still present a medicalised framing, a narrative where the athletes are commonly portrayed as heroes due to the overcoming of difficulties related to the impairment and not to the sports results. This present project work considers immersive journalism and the use of virtual reality technologies as the means by which an alternative approach and a better representation of Paralympians are possible. The project presents the description of the workflow process, detailing conceptualization decisions, technical aspects and, mainly, the challenges and lessons learned. A user study combining focus groups and online survey was also conducted in order to have insights about the experience of watching the video with the headset Samsung Gear VR. Feedback provided by participants indicated that the prototype accomplished its aim. Recommendations to improve future work were also gathered.Paralympic VR: an immersive experience baseia-se em investigação exploratória e consiste na produção de um vídeo 360 graus que visa dar acesso especial ao universo de treino do basquete em cadeira de rodas, aproximando os utilizadores dos atletas paralímpicos sem a necessidade de ocultar a deficiência ou dar grande enfoque às histórias por detrás da deficiência. A cobertura do desporto paralímpico nos media e a representação dos atletas com deficiência está a transformar-se, mas ainda apresenta uma abordagem medicalizada, uma narrativa em que os atletas são comumente retratados como heróis devido à superação de dificuldades relacionadas à deficiência e não em virtude aos resultados desportivos. O jornalismo imersivo e o uso de tecnologias de realidade virtual são considerados no presente trabalho de projeto os meios pelos quais é possível uma abordagem alternativa e uma melhor representação dos atletas paralímpicos. O projeto apresenta a descrição de todo o processo de produção do vídeo-protótipo, detalhando decisões de conceito, aspectos técnicos e, principalmente, os desafios e lições aprendidas. Um estudo com utilizadores combinando grupos de foco e questionário on-line também foi conduzido para a recolha de perceções sobre a experiência de assistir ao vídeo com o headset Samsung Gear VR. Os comentários fornecidos pelos participantes indicaram que o protótipo atingiu seu objetivo. Importantes recomendações para a melhoria de futuras experiências também foram reunidas

Journeys in the City: Empathising With the Users of Transport Buildings

Accessibility is a considerable and growing issue in the design of many public buildings including vital high use buildings such as train stations. Yet research methods for these buildings are poor. This paper suggests that one new approach to design is to use immersive, auto-ethnographic methods to achieve an empathetic understanding of design needs. The paper asks: what can we learn about the mobility requirements of station users when we are immersed in a train station environment, and what mobile research methods can we use to begin to explore this? The paper reports on a study that used video diaries to explore Canary Wharf Station in a November evening rush hour in dry conditions, and specifically to study passenger behaviours on an island platform within the station. The analysis focused on how to improve mobility in the station from a user’s perspective. This use of auto-ethnography is discussed as part of a broader methodological debate about how to explore universal design issues from a user’s perspective, and in the context of empathetic desig

Exploring asymmetric roles in mixed-ability gaming

Tese de mestrado, Informática, Universidade de Lisboa, Faculdade de Ciências, 2020Noticeably, the majority of mainstreamgames — digitalgames and tabletopgames — are still designed for players with a standard set of abilities. As such, people with someformof disability, oftenface insurmountable challengestoplay mainstreamgames or are limited to playgames specifcally designed for them. By conducting an initial study, we share multiplayer gaming experiences of people with visual impairments collected from interviews with 10 adults and 10 minors, and 140 responses to an online survey. We include the perspectives of 17 sighted people who play with someone who has a visual impairment, collected in a second online survey. We found that people with visual impairments are playingdiversegames,butface limitationsin playing with others who have different visual abilities. What stood out is the lack of intersection ingaming opportunities, and consequently, in habits and interests of people with different visual abilities. In this study, we highlight barriers associated with these experiences beyond inaccessibility issues and discuss implications and opportunities for the design of mixed-abilitygaming.Asexpected,we foundaworrying absenceofgames that caterto different abilities. In this context, we explored ability-based asymmetric roles as a design approach to create engaging and challenging mixed-ability play. We designed and developed two collaborative testbedgamesexploring asymmetric interdependent roles. In a remote study with 13 mixed-visual-ability pairs we assessed how roles affected perceptions of engagement, competence, and autonomy, using a mixed-methods approach. The games provided an engaging and challenging experience, in which differences in visual ability were not limiting. Our results underline how experiences unequal by design can give rise to an equitable joint experience

Uma arquitetura de telerreabilitação baseada em realidade aumentada para apoiar o treinamento de usuários de cadeiras de rodas motorizadas

Many people worldwide have been experimenting a decrease in their mobility as a result of aging, accidents and degenerative diseases. In many cases, a Powered Wheelchair (PW) is an alternative help. Currently, in Brazil, patients can receive a PW from the Unified Health System, following prescription criteria. However, they do not have an appropriate previous training for driving the PW. Consequently, users might suffer accidents since a customized training protocol is not available. Nevertheless, due to financial and/or health limitations, many users are unable to attend a rehabilitation center. To overcome these limitations, we developed an Augmented Reality (AR) Telerehabilitation System Architecture based on the Power Mobility Road Test (PMRT), for supporting PW user’s training. In this system, the therapists can remotely customize and evaluate training tasks and the user can perform the training in safer conditions. Video stream and data transfer between each environment were made possible through UDP (User Datagram Protocol). To evaluate and present the system architecture potential, a preliminary test was conducted with 3 spinal cord injury participants. They performed 3 basic training protocols defined by a therapist. The following metrics were adopted for evaluation: number of control commands; elapsed time; number of collisions; biosignals and a questionary was used to evaluate system features by participants. Results demonstrate the specific needs of individuals using a PW, thanks to adopted (qualitative and emotional) metrics. Also, the results have shown the potential of the training system with customizable protocols to fulfill these needs. User’s evaluation demonstrates that the combination of AR techniques with PMRT adaptations, increases user’s well-being after training sessions. Furthermore, a training experience helps users to overcome their displacement problems, as well as for appointing challenges before large scale use. The proposed system architecture allows further studies on telerehabilitation of PW users.CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorTese (Doutorado)Muitas pessoas em todo o mundo estão vivenciando uma diminuição de sua mobili- dade como resultado de envelhecimento, acidentes e doenças degenerativas. Em muitos casos, uma cadeira de rodas motorizada (CRM) é uma ajuda alternativa. Atualmente, no Brasil, os pacientes podem receber uma CRM do Sistema Único de Saúde, seguindo os critérios de prescrição. No entanto, eles não têm um treinamento prévio apropriado para dirigir a CRM. Conseqüentemente, os usuários podem sofrer acidentes, pois um protocolo de treinamento personalizado não está disponível. Além disto, devido a limi- tações financeiras e / ou de saúde, muitos usuários não podem comparecer a um centro de reabilitação. Para superar essas limitações, desenvolvemos uma arquitetura de sistema de telereabilitação com Realidade Aumentada (RA) baseado no PMRT (Power Mobility Road Test), para apoiar o treinamento de usuários de CRM. Nesse sistema, os terapeutas podem personalizar e avaliar remotamente as tarefas de treinamento e o usuário pode realizar o treinamento em condições mais seguras. O fluxo de vídeo e a transferência de dados entre cada ambiente foram possíveis através do UDP (User Datagram Protocol). Para avaliar e apresentar o potencial da arquitetura do sistema, foi realizado um teste preliminar de três participantes com lesão medular. Eles realizaram três protocolos básicos de treinamento definidos por um terapeuta. As seguintes métricas adotadas para avaliação foram: número de comandos de controle; tempo decorrido; número de colisões e biossinais. Além disso, um questionário foi usado para avaliar os recursos do sistema. Os resultados demonstram as necessidades específicas dos indivíduos que usam uma CRM, graças às métricas adotadas (qualitativas e emocionais). Além disso, os resultados mostraram o potencial do sistema de treinamento com protocolos personalizáveis para atender a essas necessidades. A avaliação do usuário demonstra que a combinação de técnicas de RA com adaptações PMRT aumenta o bem-estar do usuário após as sessões de treinamento. Além disso, esta experiência de treinamento ajuda os usuários a superar seus problemas de deslocamento, bem como a apontar desafios antes do uso em larga escala. A arquitetura de sistema proposta, permite estudos adicionais sobre a telerreabilitação de usuários de CRM

Integration of Assistive Technologies into 3D Simulations: Exploratory Studies

Virtual worlds and environments have many purposes, ranging from games to scientific research. However, universal accessibility features in such virtual environments are limited. As the impairment prevalence rate increases yearly, so does the research interests in the field of assistive technologies. This work introduces research in assistive technologies and presents three software developments that explore the integration of assistive technologies within virtual environments, with a strong focus on Brain-Computer Interfaces. An accessible gaming system, a hands-free navigation software system, and a Brain-Computer Interaction plugin have been developed to study the capabilities of accessibility features within virtual 3D environments. Details of the specification, design, and implementation of these software applications are presented in the thesis. Observations and preliminary results as well as directions of future work are also included

Accessibility of Health Data Representations for Older Adults: Challenges and Opportunities for Design

Health data of consumer off-the-shelf wearable devices is often conveyed to users through visual data representations and analyses. However, this is not always accessible to people with disabilities or older people due to low vision, cognitive impairments or literacy issues. Due to trade-offs between aesthetics predominance or information overload, real-time user feedback may not be conveyed easily from sensor devices through visual cues like graphs and texts. These difficulties may hinder critical data understanding. Additional auditory and tactile feedback can also provide immediate and accessible cues from these wearable devices, but it is necessary to understand existing data representation limitations initially. To avoid higher cognitive and visual overload, auditory and haptic cues can be designed to complement, replace or reinforce visual cues. In this paper, we outline the challenges in existing data representation and the necessary evidence to enhance the accessibility of health information from personal sensing devices used to monitor health parameters such as blood pressure, sleep, activity, heart rate and more. By creating innovative and inclusive user feedback, users will likely want to engage and interact with new devices and their own data