Pictures in Your Mind: Using Interactive Gesture-Controlled Reliefs to Explore Art

Tactile reliefs offer many benefits over the more classic raised line drawings or tactile diagrams, as depth, 3D shape, and surface textures are directly perceivable. Although often created for blind and visually impaired (BVI) people, a wider range of people may benefit from such multimodal material. However, some reliefs are still difficult to understand without proper guidance or accompanying verbal descriptions, hindering autonomous exploration. In this work, we present a gesture-controlled interactive audio guide (IAG) based on recent low-cost depth cameras that can be operated directly with the hands on relief surfaces during tactile exploration. The interactively explorable, location-dependent verbal and captioned descriptions promise rapid tactile accessibility to 2.5D spatial information in a home or education setting, to online resources, or as a kiosk installation at public places. We present a working prototype, discuss design decisions, and present the results of two evaluation studies: the first with 13 BVI test users and the second follow-up study with 14 test users across a wide range of people with differences and difficulties associated with perception, memory, cognition, and communication. The participant-led research method of this latter study prompted new, significant and innovative developments

It soon became clear – insights into technology and participation

Purpose This paper aims to explore the experience of working with different conceptualisations of participation and participatory practice. This is done through an examination of the involvement of a technology company within a multinational, 3-years participatory research project involving 13 partners and over 200 disabled people. Design/methodology/approach This paper provides a case study, narrative account of a range of activities undertaken within the project, presenting a rare and much-needed explicit insight into the emergence of participatory ways of working and the reasoning and tensions behind them. Findings Through the case study gaze of one of the technology companies involved, it explicates the underpinning processes of the participatory approach and how these challenged the notions of various partners. Originality/value This paper shows how engaging in meaningfully participatory research creates profound institutional challenges for technology developers. The subsequent need to make hard decisions and compromises throughout disrupts traditional ways of working and anticipated outcomes. However, it also reveals opportunities for delivering unanticipated and transformative outcomes, highlighting the need for greater flexibility in funding research that aims to be participatory

Review of quantitative empirical evaluations of technology for people with visual impairments

Addressing the needs of visually impaired people is of continued interest in Human Computer Interaction (HCI) research. Yet, one of the major challenges facing researchers in this field continues to be how to design adequate quantitative empirical evaluation for these users in HCI. In this paper, we analyse a corpus of 178 papers on technologies designed for people with visual impairments, published since 1988, and including at least one quantitative empirical evaluation (243 evaluations in total). To inform future research in this area, we provide an overview, historic trends and a unified terminology to design and report quantitative empirical evaluations. We identify open issues and propose a set of guidelines to address them. Our analysis aims to facilitate and stimulate future research on this topic