TY - CHAP U1 - Konferenzveröffentlichung A1 - Nandkumar, Karan A1 - Schulz, Annika Sabrina A1 - Korn, Oliver T1 - Wearable or HMD?: How to Support Tactile Navigation T2 - Proceedings of the 13th ACM International Conference on Pervasive Technologies Related to Assistive Environments N2 - This paper describes a comparative study of two tactile systems supporting navigation for persons with little or no visual and auditory perception. The efficacy of a tactile head-mounted device (HMD) was compared to that of a wearable device, a tactile belt. A study with twenty participants showed that the participants took significantly less time to complete a course when navigating with the HMD, as compared to the belt. KW - Navigation KW - Assistive Technology KW - Tactile KW - Human Computer Interaction KW - Deafblindness Y1 - 2020 U6 - https://dx.doi.org/10.1145/3389189.3397644 DO - https://dx.doi.org/10.1145/3389189.3397644 N1 - Konferenz: PETRA '20. The 13th PErvasive Technologies Related to Assistive Environments Conference, Corfu Greece, June 2020 SP - Artikel 78 S1 - 2 PB - ACM Press CY - New York ER - TY - CHAP U1 - Konferenzveröffentlichung A1 - Buchweitz, Lea A1 - Theil, Arthur A1 - Gay, James A1 - Korn, Oliver ED - Guerreiro, Tiago ED - Nicolau, Hugo ED - Moffatt, Karyn T1 - Exploring Low-Cost Materials to Make Pattern-Based Lock-Screens Accessible for Users with Visual Impairments or Deafblindness T2 - Proceedings of the 22nd International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS ’20) N2 - Nowadays, the wide majority of Europeans uses smartphones. However, touch displays are still not accessible by everyone. Individuals with deafblindness, for example, often face difculties in accessing vision-based touchscreens. Moreover, they typically have few fnancial resources which increases the need for customizable, low-cost assistive devices. In this work-in-progress, we present four prototypes made from low-cost, every-day materials, that make modern pattern lock mechanisms more accessible to individuals with vision impairments or even with deafblindness. Two out of four prototypes turned out to be functional tactile overlays for accessing digital 4-by-4 grids that are regularly used to encode dynamic dot patterns. In future work, we will conduct a user study investigating whether these two prototypes can make dot-based pattern lock mechanisms more accessible for individuals with visual impairments or deafblindness. KW - Deafblindness KW - Assistive Technology KW - Touch KW - Textile KW - Wearables Y1 - 2020 SN - 978-1-4503-7103-2 SB - 978-1-4503-7103-2 U6 - https://dx.doi.org/10.1145/3373625.3418020 DO - https://dx.doi.org/10.1145/3373625.3418020 N1 - Konferenz: ASSETS '20. The 22nd International ACM SIGACCESS Conference on Computers and Accessibility, Virtual Event, Greece, October 2020 SP - Artikel 69 S1 - 4 PB - ACM Press CY - New York ER - TY - CHAP U1 - Konferenzveröffentlichung A1 - Gay, James A1 - Umfahrer, Moritz A1 - Theil, Arthur A1 - Buchweitz, Lea A1 - Lindell, Eva A1 - Guo, Li A1 - Persson, Nils-Krister A1 - Korn, Oliver ED - Guerreiro, Tiago ED - Nicolau, Hugo ED - Moffatt, Karyn T1 - Keep Your Distance: A Playful Haptic Navigation Wearable for Individuals with Deafblindness T2 - Proceedings of the 22nd International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS ’20) N2 - Deafblindness, a form of dual sensory impairment, signifcantly impacts communication, access to information and mobility. Inde- pendent navigation and wayfnding are main challenges faced by individuals living with combined hearing and visual impairments. We developed a haptic wearable that provides sensory substitution and navigational cues for users with deafblindness by conveying vibrotactile signals onto the body. Vibrotactile signals on the waist area convey directional and proximity information collected via a fisheye camera attached to the garment, while semantic informa- tion is provided with a tapping system on the shoulders. A playful scenario called “Keep Your Distance” was designed to test the navigation system: individuals with deafblindness were “secret agents” that needed to follow a “suspect”, but they should keep an opti- mal distance of 1.5 meters from the other person to win the game. Preliminary fndings suggest that individuals with deafblindness enjoyed the experience and were generally able to follow the directional cues. KW - Deafblindness KW - Assistive Technology KW - Gamification KW - Haptics KW - Human Computer Interaction Y1 - 2020 SN - 978-1-4503-7103-2 SB - 978-1-4503-7103-2 U6 - https://dx.doi.org/10.1145/3373625.3418048 DO - https://dx.doi.org/10.1145/3373625.3418048 N1 - ASSETS '20: The 22nd International ACM SIGACCESS Conference on Computers and Accessibility, Virtual Event, Greece, October 2020 SP - Artikel 93 S1 - 4 PB - ACM Press CY - New York ER - TY - CHAP U1 - Konferenzveröffentlichung A1 - Theil, Arthur A1 - Buchweitz, Lea A1 - Fuentes, Mauricio A1 - Korn, Oliver T1 - Co-Designing Assistive Tools to Support Social Interactions by Individuals Living with Deafblindness T2 - DIS' 20: Companion Publication of the 2020 ACM Designing Interactive Systems Conference N2 - Deafblindness is a dual sensory impairment that affects many aspects of life, including mobility, access to information, communication, and social interactions. Furthermore, individuals living with deafblindness are under a high risk of social isolation. Therefore, we identified opportunities for applying assistive tools to support social interactions through co-ideation activities with members of the deafblind community. This work presents our co-design approach, lessons learned and directions for designing meaningful assistive tools for dual sensory loss. KW - Deafblindness KW - Assistive Technology KW - Social Interaction KW - Design KW - Wearables Y1 - 2020 SN - 978-1-4503-7987-8 SB - 978-1-4503-7987-8 U6 - https://dx.doi.org/10.1145/3393914.3395869 DO - https://dx.doi.org/10.1145/3393914.3395869 N1 - DIS '20: Designing Interactive Systems Conference 2020, Eindhoven Netherlands, July 2020 SP - 79 EP - 83 PB - ACM Press CY - New York ER - TY - CHAP U1 - Konferenzveröffentlichung A1 - Theil, Arthur A1 - Buchweitz, Lea A1 - Gay, James A1 - Lindell, Eva A1 - Guo, Li A1 - Persson, Nils-Krister A1 - Korn, Oliver ED - Cauchard, Jessica ED - Löchtefeld, Markus T1 - Tactile Board: A Multimodal Augmentative and Alternative Communication Device for Individuals with Deafblindness T2 - Proceedings of the 19th International Conference on Mobile and Ubiquitous Multimedia N2 - Deafblindness, also known as dual sensory loss, is the combination of sight and hearing impairments of such extent that it becomes difficult for one sense to compensate for the other. Communication issues are a key concern for the Deafblind community. We present the design and technical implementation of the Tactile Board: a mobile Augmentative and Alternative Communication (AAC) device for individuals with deafblindness. The Tactile Board allows text and speech to be translated into vibrotactile signs that are displayed real-time to the user via a haptic wearable. Our aim is to facilitate communication for the deafblind community, creating opportunities for these individuals to initiate and engage in social interactions with other people without the direct need of an intervener. KW - Deafblindness KW - Assistive Technology KW - Haptics KW - Tactile KW - Smart Textiles Y1 - 2020 SN - 978-1-4503-8870-2 SB - 978-1-4503-8870-2 U6 - https://dx.doi.org/10.1145/3428361.3428465 DO - https://dx.doi.org/10.1145/3428361.3428465 N1 - Konferenz: MUM 2020. 19th International Conference on Mobile and Ubiquitous Multimedia, November 22-25 2020, Essen, Germany SP - 223 EP - 228 PB - ACM Press CY - New York ER -