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2021 Journal article Restricted

Integrating wearable haptics and obstacle avoidance for the visually impaired in indoor navigation: a user-centered approach
Barontini F., Catalano M. G., Pallottino L., Leporini B., Bianchi M.
Recently, in the attempt to increase blind people autonomy and improve their quality of life, a lot of effort has been devoted to develop technological travel aids. These systems can surrogate spatial information about the environment and deliver it to end-users through sensory substitution (auditory, haptic). However, despite the promising research outcomes, these solutions have met scarce acceptance in real-world. Often, this is also due to the limited involvement of real end users in the conceptual and design phases. In this manuscript, we propose a novel indoor navigation system based on wearable haptic technologies. All the developmental phases were driven by continuous feedback from visually impaired persons. The proposed travel aid system consists of a RGB-D camera, a processing unit to compute visual information for obstacle avoidance, and a wearable device, which can provide normal and tangential force cues for guidance in an unknown indoor environment. Experiments with blindfolded subjects and visually impaired participants show that our system could be an effective support during indoor navigation, and a viable tool for training blind people to the usage of travel aids.Source: IEEE transactions on haptics (Print) 14 (2021): 109–122. doi:10.1109/TOH.2020.2996748
DOI: 10.1109/toh.2020.2996748

See at: IEEE Transactions on Haptics Restricted | IEEE Transactions on Haptics Restricted | CNR ExploRA Restricted | IEEE Transactions on Haptics Restricted | IEEE Transactions on Haptics Restricted


2021 Report Open Access OPEN

SI-Lab Annual Research Report 2020
Leone G. R., Righi M., Carboni A., Caudai C., Colantonio S., Kuruoglu E. E., Leporini B., Magrini M., Paradisi P., Pascali M. A., Pieri G., Reggiannini M., Salerno E., Scozzari A., Tonazzini A., Fusco G., Galesi G., Martinelli M., Pardini F., Tampucci M., Buongiorno R., Bruno A., Germanese D., Matarese F., Coscetti S., Coltelli P., Jalil B., Benassi A., Bertini G., Salvetti O., Moroni D.
The Signal & Images Laboratory (http://si.isti.cnr.it/) is an interdisciplinary research group in computer vision, signal analysis, smart vision systems and multimedia data understanding. It is part of the Institute for Information Science and Technologies of the National Research Council of Italy. This report accounts for the research activities of the Signal and Images Laboratory of the Institute of Information Science and Technologies during the year 2020.Source: ISTI Technical Report, ISTI-2021-TR/009, pp.1–38, 2021
DOI: 10.32079/isti-tr-2021/009

See at: ISTI Repository Open Access | CNR ExploRA Open Access


2021 Conference article Open Access OPEN

An enriched emoji picker to improve accessibility in mobile communications
Paratore M. T., Buzzi M. C., Buzzi M., Leporini B.
We present an emoji picker designed to enrich emojis selection on mobile devices using audio cues. The aim is to make emojis selection more intuitive by better identify their meanings. Unlike the typical emoji input components currently in use (known as "pickers"), in our component each emotion-related item is represented by both an emoji and a non-verbal vocal cue, and it is displayed according to a two-dimensional model suggesting the pleasantness and intensity of the emotion itself. The component was embedded in an Android app in order to exploit touchscreen interaction together with audio cues to ease the selection process by using more than one channel (visual and auditory). Since the component adds non-visual information that drives the emoji selection, it may be particularly useful for users with visual impairments. In order to investigate the feasibility of the approach and the acceptability/usability of the emoji picker component, a preliminary remote evaluation test involving both sighted and visually impaired users was performed. Analysis of the data collected through the evaluation test shows that all the participants, whether sighted or visually impaired, rated the usability of our picker as good, and also evaluated positively the model adopted to add semantic value to emojis.Source: INTERACT 2021 - 18th IFIP TC 13 International Conference on Human-Computer Interaction (Part I), pp. 418–433, Bari, Italy, 30/08/2021 - 03/09/2021
DOI: 10.1007/978-3-030-85623-6_25

See at: ISTI Repository Open Access | link.springer.com Restricted | CNR ExploRA Restricted


2021 Conference article Open Access OPEN

Sign Language GIFs exchange communication system: a PECS-based computer-mediated communication tool for the deaf
Zhilla C., Galesi G., Leporini B.
Thanks to technological advances, Sign Language (SL), which is used by most deaf people, has gradually been freed from the need for face-to-face interaction. Deaf people used to communicating via SL may experience many problems in writing and reading text contents. Considering those difficulties, we propose a messaging system that integrates a Graphics Interchange Format (GIF) gallery representing phrases and words in SL to promote written communication closer to the needs of this user category.Source: INTERACT 2021 - 18th IFIP TC 13 International Conference on Human-Computer Interaction (Part V), pp. 490, Bari, Italy, 30/08/2021 - 03/09/2021
DOI: 10.1007/978-3-030-85607-6_64

See at: ISTI Repository Open Access | link.springer.com Restricted | CNR ExploRA Restricted


2020 Journal article Open Access OPEN

Design and validation of the readable device: a single-cell electromagnetic refreshable Braille display
Bettelani G. C., Averta G., Catalano M. G., Leporini B., Bianchi M.
Blindness represents one of the major disabling societal causes, impacting the life of visually impaired people and their families. Regarding the access to written information, one of the main tools used by blind people is the traditional Braille code. This is the reason why in recent years, there has been a technological effort to develop refreshable Braille devices. These consist of multiple physical dots that dynamically change their configuration to reproduce different sequences of the letters in Braille code. Although promising, these approaches have many drawbacks, which are mainly related to costs, design complexity, portability, and power consumption. Of note, while many solutions have been proposed for multi-cell devices, the investigation of the potentialities of single-cell refreshable systems has received little attention so far. This investigation could offer effective and viable manners to overcome the aforementioned drawbacks, likely fostering widespread adoption of such assistive technologies with end-users. In this paper, we present the design and characterization of a new cost-effective single-cell Electromagnetic Refreshable Braille Display, the Readable system. We report on tests performed with blindfolded and blind expert Braille code readers. Results demonstrate the effectiveness of our device in correctly reproducing alphanumeric content, opening promising perspectives in every-day life applications.Source: IEEE transactions on haptics (Print) 13 (2020): 239–245. doi:10.1109/TOH.2020.2970929
DOI: 10.1109/toh.2020.2970929
Project(s): SoftPro via OpenAIRE

See at: ISTI Repository Open Access | IEEE Transactions on Haptics Restricted | IEEE Transactions on Haptics Restricted | IEEE Transactions on Haptics Restricted | Archivio della Ricerca - Università di Pisa Restricted | ieeexplore.ieee.org Restricted | IEEE Transactions on Haptics Restricted | CNR ExploRA Restricted | IEEE Transactions on Haptics Restricted | IEEE Transactions on Haptics Restricted


2020 Journal article Open Access OPEN

Designing assistive technology for getting more independence for blind people when performing everyday tasks: an auditory-based tool as a case study
Leporini B., Rosellini M., Forgione N.
Everyday activities and tasks should in theory be easily carried by everyone, including the blind. Information and Communication Technology (ICT) has been widely used for supporting solutions. However, the solutions can be problematic for the visually impaired since familiarity with digital devices is often required. Or, indeed the procedure can be perceived as fiddly or impractical particularly for repetitive tasks due to the number/type of steps required to complete the task. This paper introduces a simple audio-based tool aimed at supporting visually-impaired people in the seemingly simple activity of checking whether the light in a room is on or off. It is an example of potential low tech devices that can be designed without the need for specific skills or knowledge by the user, and that functions in a practical way. In this context, we discuss the main issues and considerations for totally blind users in identifying whether a light is switched on. The proposed prototype is based on a simple circuit and a form of auditory feedback which informs the user whether they are switching on or off the light. Two prototypes have been designed and built for two different kinds of installation. For the subsequent second prototype, three different versions are proposed to provide a blind person with further support in easily identifying the light status at home. The new design includes enhanced auditory feedback and modifications to the dimensions. The evaluation conducted by involving various groups of end-users revealed the usefulness of the proposed tool. In addition, a survey conducted with 100 visually-impaired people reported the limitations and difficulties encountered by the blind in using existing devices. Moreover, the study revealed the interest from 94% of the participants for a potential (new) basic tool integrable with the existing lighting system. This study gives a contribution in the ambient intelligence field by (1) showing how an auditory-based tool can be used to support totally blind people to check the lights in an autonomous and relatively simple way; (2) proposing an idea that can be exploited in other application cases that use light feedback; and (3) proposing seven potential recommendations for designing assistive technology tools and common everyday devices, based on information gathered from the online survey.Source: Journal of ambient intelligence & humanized computing (Print) 11 (2020): 6107–6123. doi:10.1007/s12652-020-01944-w
DOI: 10.1007/s12652-020-01944-w

See at: ISTI Repository Open Access | Journal of Ambient Intelligence and Humanized Computing Restricted | Journal of Ambient Intelligence and Humanized Computing Restricted | link.springer.com Restricted | Journal of Ambient Intelligence and Humanized Computing Restricted | Journal of Ambient Intelligence and Humanized Computing Restricted | CNR ExploRA Restricted


2020 Conference article Open Access OPEN

Exploring WAI-Aria techniques to enhance screen reader interaction: the case of a portal for rating accessibility of cultural heritage sites
Buzzi M., Leporini B., Romano F.
Cultural heritage sites (museums, archaeological parks, exhibition spaces, etc.) do not always guarantee accessibility to all users, regardless of their abilities. Often services are not really as usable and functional as expected. Currently there is no website offering accessibility information on heritage sites in a format accessible to all. People with disability or their caregivers are forced to spend considerable time and effort to obtain accessibility information, sometimes encountering difficulties. The Axem portal aims to fill this gap by offering information on the degree of accessibility of cultural sites (museums, archaeological parks, libraries, art galleries, places of worship, exhibition spaces, etc.). It has been designed as a facility for people with disabilities and in general for all individuals who have special needs and require specific services. In this paper the Axem web site is presented as a case study to (1) investigate the use of web techniques for enhancing screen reading interaction, and (2) propose a portal to collect information on accessible services supported by the cultural sites. Regarding web accessibility, the use of WAI ARIA, an accessible web design, is discussed in order to improve screen reading interaction. Accessibility functions and features as well as the ranking algorithm for easy search and the rating mechanism are presented. This work offers a further contribution to the web accessibility field, while proposing a portal which could be exploited by cultural heritage sites and promote their accessible services to people with disability.Source: UAHCI 2020 - 14th International Conference, Held as Part of the 22nd HCI International Conference, HCII 2020, pp. 245–260, Copenhagen, Denmark, 19-24 July 2020
DOI: 10.1007/978-3-030-49282-3_17

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | link.springer.com Restricted | link.springer.com Restricted | CNR ExploRA Restricted | rd.springer.com Restricted


2020 Conference article Open Access OPEN

SelfLens: A personal assistive technology to support the independence of people with special needs in reading information on food items
Galesi G., Giunipero L., Leporini B., Pagliucoli F., Quatraro A., Verdi G.
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.Source: ICCHP 2020 - 17th International Conference on Computers Helping People with Special Needs, pp. 526–533, Lecco, Italy, 09-11 September 2020
DOI: 10.1007/978-3-030-58796-3_60

See at: Europe PubMed Central Open Access | ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | link.springer.com Restricted | link.springer.com Restricted | CNR ExploRA Restricted


2020 Journal article Open Access OPEN

Design guidelines for an interactive 3D model as a supporting tool for exploring a cultural site by visually impaired and sighted people
Leporini B., Rossetti V., Furfari F., Pelagatti S., Quarta A.
Being able to explore and familiarise themselves with the structure and details of a cultural site before actually visiting it is fundamental for orienting visually impaired people during the visit; otherwise, it is particularly difficult to gain a global understanding of the structure and an overall impression of a square, a church, or a large monument. Our project addressed this problem by using low cost 3D models combined with audio descriptions to enable visually impaired users to explore the cultural site autonomously. Audio descriptions are organised into three groups (for historical, practical, and architectural information), and for each group, several tracks are recorded giving increasing levels of details. Users can easily navigate through the audio tracks to follow their tactile exploration by listening to the information they are most interested in. Relevant details are reproduced separately and linked to the main model via the audio tracks. A goal of our model is to enhance the understanding of the cultural site also for partially sighted as well as sighted people, making them able to appreciate the details of the architectural design using both visual and auditory senses. We exploited low-cost and partially open-source technologies, thus rendering our system easily replicable. We evaluated the interactive system with blind, partially sighted, and sighted users. Our user test confirmed the validity of our approach: (1) the 3D models and the tactile reproduction of details obtained via a low-cost 3D printing solution are well perceived by touch; (2) the semantic auditory information activated via perceptible buttons on demand and the different content levels for the audio tracks are suitable for an interactive, autonomous, and satisfying exploration; and (3) relevant details are well perceived. Finally, we propose guidelines to use in the 3D reproduction of buildings or large sites based on our experience.Source: ACM transactions on accessible computing 13 (2020). doi:10.1145/3399679
DOI: 10.1145/3399679

See at: ISTI Repository Open Access | ACM Transactions on Accessible Computing Restricted | ACM Transactions on Accessible Computing Restricted | ACM Transactions on Accessible Computing Restricted | ACM Transactions on Accessible Computing Restricted | CNR ExploRA Restricted


2020 Contribution to conference Open Access OPEN

SelfLens: a portable tool to facilitate all people in getting information on food items
Galesi G., Giunipero L., Leporini B., Verdi G.
Independently selecting food items while shopping, or storing and cooking food items correctly can be a very difficult task for people with special needs. Product labels on food packaging contain an ever-increasing amount of information, which can also be in a variety of languages. The amount of information and also the features of the text can make it difficult or impossible to read, in particular for those with visual impairments or the elderly. Several tools or applications are available on the market or have been proposed to support this type of activity (e.g. barcode or QR code reading), but they are limited and may require the user to have specific digital skills. Moreover, repeatedly using an application to read the label contents can require numerous steps on a touch-screen, and consequently be time-consuming. In this work, a portable tool is proposed to support people in reading the contents of labels and acquiring additional information, while they are using the item at home or shopping at the supermarket. The aim of our study is to propose a simple portable assistive technology tool which 1) can be used by anyone, regardless of their digital personal skills 2) does not require a smartphone or complex device, 3) is a low-cost solution for the user.Source: AVI'20 - International Conference on Advanced Visual Interfaces, Ischia Island, Italy, 28 September - 02 October, 2020
DOI: 10.1145/3399715.3399941

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | dl.acm.org Restricted | dl.acm.org Restricted | CNR ExploRA Restricted


2020 Conference article Open Access OPEN

ICT to Support Inclusive Education. Introduction to the Special Thematic Session
Hersh M., Leporini B., Buzzi M.
This short paper introduces five papers about different ways in which technology can be used to support the education of disabled children and young people. The topics covered include music education (two papers), for children with intellectual impairments in orphanages and autistic learners respectively, science education for hearing impaired students, classroom participation at a distance for autistic students and a recommender app for open learning resources. The approaches used include games, exercises, body motions, animations, a quiz and a robot based system with audio, video and vibro-tactile interfaces. Most of them were successful, but only tested with a small number of children and young people. The presentation of these papers is introduced by a brief discussion of the role of ICT in making education accessible to disabled people. It notes that there has been a tendency to develop learning technologies for specific groups of disabled people rather than for all learners and this is borne out in the papers.Source: ICCHP 2020 - 17th International Conference on Computers Helping People with Special Needs, pp. 123–128, Lecco, Italy, 09-11 September 2020
DOI: 10.1007/978-3-030-58805-2_15

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | link.springer.com Restricted | link.springer.com Restricted | CNR ExploRA Restricted


2020 Conference article Open Access OPEN

Accessibility evaluation of video conferencing tools to support disabled people in distance teaching, meetings and other activities
Hersh M., Leporini B., Buzzi M.
The current covid-19 pandemic has transferred educational, work and other activities on-line and made it essential to be able to use videoconferencing tools. This raises many issues for disabled people, including the accessibil-ity and usability of these tools. However, studies evaluating accessibility and usability of these tools seem to be lacking and this paper contributes to filling this gap. It has three main contributions: (i) the presentation of crite-ria to be used in this valuation; (ii) a preliminary study of the experiences of the two disabled authors; (iii) preliminary recommendations for tool de-velopers.Source: ICCHP open access compendium "Future Perspectives of AT, eAccessibility and eInclusion", pp. 133–139, online, 09-11 September 2020

See at: CNR ExploRA Open Access | www.icchp.org Open Access


2020 Report Open Access OPEN

Creare un documento accessibile
Leporini B., Galesi G.
Istruzioni che indicano i comandi da tastiera da eseguire in Microsoft Word e LibreOffice Writer per favorire l'acquisizione di competenze base per la redazione di documenti accessibili a tutti, comprese le persone che utilizzano tecnologie assistive. Istruzioni realizzate nell'ambito dell'accordo di collaborazione stipulato tra CRA ed ISTI-CNR in tema di accessibilità.Source: ISTI Technical Reports 2020/019, 2020, 2020
DOI: 10.32079/isti-tr-2020/019

See at: ISTI Repository Open Access | CNR ExploRA Restricted


2020 Conference article Open Access OPEN

App inventor as a developing tool to increase the accessibility and readability of information: a case study
Leporini B., Catanzaro G.
In this work, App Inventor is presented as a potential tool to develop an accessible app in order to convey contents and information. As use case, we considered the readability of a leaflet used to provide useful information to the general public. Usually this type of contents is presented in a static PDF format, which cannot be easily read on a touch screen. In this work, App Inventor is used to convey information in a more interactive and readable way via a mobile app. The study was specifically aimed at investigating(1) the accessibility support provided by App Inventor, and (2) the usage of an interactive mobile app as a possible tool to enhance content readability on a touch-screen device. The designed app showed that accessibility is supported by App Inventor, although some minor issues have been detected in the user interface design. Finally a set of possible design suggestions has been proposed.Source: DSAI 2020 - 9th International Conference on Software Development and Technologies for Enhancing Accessibility and Fighting Info-exclusion, pp. 71–75, Online Conference, 2-4/12/2020
DOI: 10.1145/3439231.3440615

See at: ISTI Repository Open Access | dl.acm.org Restricted | CNR ExploRA Restricted


2020 Contribution to conference Open Access OPEN

A user-centered approach to artificial sensory substitution for blind People assistance
Barontini F., Bettelani G. C., Leporini B., Averta G., Bianchi M.
Artificial sensory substitution plays a crucial role in different domains, including prosthetics, rehabilitation and assistive technologies. The sense of touch has historically represented the ideal candidate to convey information on the external environment, both contact-related and visual, when the natural action-perception loop is broken or not available. This is particularly true for blind people assistance, in which touch elicitation has been used to make content perceivable (e.g. Braille text or graphical reproduction), or to deliver informative cues for navigation. However, despite the significant technological advancements for what concerns both devices for touch-mediated access to alphanumeric stimuli, and technology- enabled haptic navigation supports, the majority of the pro- posed solutions has met with scarce acceptance in end users community. Main reason for this, in our opinion, is the poor involvement of the blind people in the design process. In this work, we report on a user-centric approach that we successfully applied for haptics- enabled systems for blind people assistance, whose engineering and validation have received significant inputs from the visually-impaired people. We also present an application of our approach to the design of a single-cell refreshable Braille device and to the development of a wearable haptic system for indoor navigation. After a summary of our previous results, we critically discuss next avenues and propose novel solutions for touch-mediated delivery of information for navigation, whose implementation has been totally driven by the feedback collected from real end-users.Source: ICRN 2020 - 5th International Conference on NeuroRehabilitation, Online Conference, October 13-16, 2020
Project(s): SOPHIA via OpenAIRE

See at: ISTI Repository Open Access | CNR ExploRA Open Access | www.icnr2020.org Open Access


2019 Contribution to book Open Access OPEN

Education and STEM on the Web
Leporini B., Buzzi M.
Difficulty accessing digital educational material in the fields of science, technology, engineering, and mathematics (STEM) hinders many students from receiving an education according to his/her preferences and fully enjoying the opportunities offered by our technology-enhanced society. Web resources enhance the delivery of STEM content by offering interactive and visual models, dynamic content, videos, quizzes, games and more. STEM content can be delivered in several ways including visually, vocally, or through a 3-D printed Braille bar or other assistive technology. In this chapter, we focus on the accessibility of STEM Web content for students with disabilities who are prevented from fully accessing digital visual resources, precluding a fully inclusive education. This chapter offers an overview of the state of the art of accessibility of STEM content on the Web, focusing especially on the experience of blind students. Existing issues and the authors' opinions in the field are aimed at motivating future research and development.Source: Web Accessibility : a foundation for research, edited by Yesilada Yeliz, Harper Simon, pp. 651–674, 2019
DOI: 10.1007/978-1-4471-7440-0_33

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | link.springer.com Restricted | link.springer.com Restricted | link.springer.com Restricted | CNR ExploRA Restricted


2019 Contribution to book Open Access OPEN

Serious games for the rehabilitation of disabled people: results of a multilingual survey
Hersh M., Leporini B.
The paper reports the results of an original mixed-methods survey on the experiences and attitudes of disabled people to digital games in rehabilitation. Serious games are very widely used, but there is currently no research from the perspective of disabled people on their use in rehabilitation. A majority of participants were found to consider games in rehabilitation useful or very useful, with particular interest in games with a camera and sensors. Some statistically significant differences were found between the experiences and attitudes of blind and other disabled people and under and over 40s, but the results were found to be male-female gender independent. Several theories of technology use were applied to interpret the findings. The results were used to provide recommendations for the development and implementation of serious games in rehabilitation and suggestions for further work.Source: New Technologies to Improve Patient Rehabilitation, edited by Habib M. Fardoun, Ahlam A. M. Hassan, M. Elena de la Guía, pp. 98–115. Berlin: Springer, 2019
DOI: 10.1007/978-3-030-16785-1_8

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | eprints.gla.ac.uk Restricted | link.springer.com Restricted | link.springer.com Restricted | link.springer.com Restricted | CNR ExploRA Restricted | rd.springer.com Restricted


2019 Conference article Open Access OPEN

Is the light on or off?: a simple auditory-based tool to help visually-impaired people check the light device status
Leporini B., Rosellini M., Forgione N.
Everyday activities and routines should be easy to perform for everyone, including those who are totally blind. This paper introduces a simple audio-based tool aimed at supporting visually-impaired people in checking whether the light in a room is on or off. In this context, we discuss the main issues and considerations for totally blind users with regard to a specific seemingly simple task, which is light detection. The proposed prototype is based on a simple circuit and a form of auditory feedback which informs the user whether they are switching on or off the light. The evaluation conducted by involving blind and sighted people confirmed the usefulness of the proposed tool.Source: PETRA '19 - 12th ACM International Conference on PErvasive Technologies Related to Assistive Environments, pp. 152–155, Rhodes, Greece, 05-07 June, 2019
DOI: 10.1145/3316782.3321541

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | dl.acm.org Restricted | dl.acm.org Restricted | doi.org Restricted | CNR ExploRA Restricted


2019 Conference article Open Access OPEN

Personalization in the interactive EPUB 3 reading experience: accessibility issues for screen reader users
Leporini B., Meattini C.
In this paper, we describe the study conducted to investigate accessibility using EPUB 3 with particular focus on interaction via screen reader. A multimedia and interactive EPUB 3 prototype was designed for the purpose. In particular, personalization features based on user preferences were designed to customize the reading experience and enrich the interactive experience. Despite the fact that the EPUB format is based on HTML5, and numerous guidelines for web-based technology can be applied to overcome accessibility barriers, several issues still exist with the current standard EPUB 3 when accessing via screen reader. This study contributes to digital publishing for assistive technology and reading application development by promoting accessibility in EPUB interaction. Thus, some considerations and suggestions in that direction end the paper.Source: W4A2019 - 16th Web For All 2019 Personalization - Personalizing the Web, San Francisco, USA, 13-15 May, 2019
DOI: 10.1145/3315002.3317564

See at: ISTI Repository Open Access | academic.microsoft.com Restricted | dblp.uni-trier.de Restricted | dl.acm.org Restricted | dl.acm.org Restricted | CNR ExploRA Restricted


2019 Journal article Open Access OPEN

Design guidelines for web interfaces of home automation systems accessible via screen reader
Buzzi M., Leporini B., Meattini C.
Home Automation Systems (HAS) - also referred to as smart homes - exploit multiple components such as sensors, RFID readers, wireless devices, and remote control systems to enable easy interaction with smart appliances and devices, and to automate performing sequences of tasks to make human-device interaction simpler and life more comfortable. For people with vision impairment, especially those who are unable to see at all, smart homes can be a powerful tool for enhancing personal autonomy, provided that the system offers suitable device integration and accessible interfaces with a simple interaction via keyboard, assistive technology and other modalities such as voice and gestures. This paper investigates the accessibility of web interfaces when interacting with HAS components via screen reader assistive technology, in order to propose potential suggestions to developers. Web interfaces are particularly considered in this study in order to support screen reader users who are not yet skilled in using touch-screen devices. Specifically, based on collected accessibility and usability issues, as well as users' expectations and preferences, a Web-based prototype has been designed and optimized especially for interaction via screen reader. After describing an evaluation conducted with a small group of skilled screen reader users, several guidelines are suggested for designers of HAS interfaces.Source: Journal of web engineering 18 (2019): 477–512. doi:10.13052/jwe1540-9589.18468
DOI: 10.13052/jwe1540-9589.18468

See at: ISTI Repository Open Access | ISTI Repository Open Access | CNR ExploRA Open Access | Journal of Web Engineering Open Access | www.riverpublishers.com Open Access | Journal of Web Engineering Restricted | Journal of Web Engineering Restricted | Journal of Web Engineering Restricted | Journal of Web Engineering Restricted