Analysing Pedestrian Traffic Around Public Displays

This paper presents a powerful approach to evaluating public technologies by capturing and analysing pedestrian traffic using computer vision. This approach is highly flexible and scales better than traditional ethnographic techniques often used to evaluate technology in public spaces. This technique can be used to evaluate a wide variety of public installations and the data collected complements existing approaches. Our technique allows behavioural analysis of both interacting users and non-interacting passers-by. This gives us the tools to understand how technology changes public spaces, how passers-by approach or avoid public technologies, and how different interaction styles work in public spaces. In the paper, we apply this technique to two large public displays and a street performance. The results demonstrate how metrics such as walking speed and proximity can be used for analysis, and how this can be used to capture disruption to pedestrian traffic and passer-by approach patterns

Understanding Public Evaluation: Quantifying Experimenter Intervention

Public evaluations are popular because some research questions can only be answered by turning “to the wild.” Different approaches place experimenters in different roles during deployment, which has implications for the kinds of data that can be collected and the potential bias introduced by the experimenter. This paper expands our understanding of how experimenter roles impact public evaluations and provides an empirical basis to consider different evaluation approaches. We completed an evaluation of a playful gesture-controlled display – not to understand interaction at the display but to compare different evaluation approaches. The conditions placed the experimenter in three roles, steward observer, overt observer, and covert observer, to measure the effect of experimenter presence and analyse the strengths and weaknesses of each approach

Enter the Circle: Blending Spherical Displays and Playful Embedded Interaction in Public Spaces

Public displays are used a variety of contexts, from utility driven information displays to playful entertainment displays. Spherical displays offer new opportunities for interaction in public spaces, allowing users to face each other during interaction and explore content from a variety of angles and perspectives. This paper presents a playful installation that places a spherical display at the centre of a playful environment embedded with interactive elements. The installation, called Enter the Circle, involves eight chair-sized boxes filled with interactive lights that can be controlled by touching the spherical display. The boxes are placed in a ring around the display, and passers-by must “enter the circle” to explore and play with the installation. We evaluated this installation in a pedestrianized walkway for three hours over an evening, collecting on-screen logs and video data. This paper presents a novel evaluation of a spherical display in a public space, discusses an experimental design concept that blends displays with embedded interaction, and analyses real world interaction with the installation

Deep cover HCI: the ethics of covert research

No abstract available

GlobalFestival: Evaluating Real World Interaction on a Spherical Display

Spherical displays present compelling opportunities for interaction in public spaces. However, there is little research into how touch interaction should control a spherical surface or how these displays are used in real world settings. This paper presents an in the wild deployment of an application for a spherical display called GlobalFestival that utilises two different touch interaction techniques. The first version of the application allows users to spin and tilt content on the display, while the second version only allows spinning the content. During the 4-day deployment, we collected overhead video data and on-display interaction logs. The analysis brings together quantitative and qualitative methods to understand how users approach and move around the display, how on screen interaction compares in the two versions of the application, and how the display supports social interaction given its novel form factor

User experience, performance, and social acceptability: usable multimodal mobile interaction

This thesis explores the social acceptability of multimodal interaction in public places with respect to acceptance, adoption and appropriation. Previous work in multimodal interaction has mainly focused on recognition and detection issues without thoroughly considering the willingness of users to adopt these kinds of interactions in their everyday lives. This thesis presents a novel approach to user experience that is theoretically motivated by phenomenology, practiced with mixed-methods, and analysed based on dramaturgical metaphors. In order to explore the acceptance of multimodal interfaces, this thesis presents three studies that look at users’ initial reactions to multimodal interaction techniques: a survey study focusing on gestures, an on-the-street user study, and a follow-up survey study looking at gesture and voice-based interaction. The investigation of multimodal interaction adoption is explored through two studies: an in situ user study of a performative interface and a focus group study using experience prototypes. This thesis explores the appropriation of multimodal interaction by demonstrating the complete design process of a multimodal interface using the performative approach to user experience presented in this thesis. Chapter 3 looks at users’ initial reactions to and acceptance of multimodal interactions. The results of the first survey explored location and audience as factors the influence how individuals behave in public places. Participants in the on-the-street study described the desirable visual aspects of the gestures as playful, cool, or embarrassing aspects of interaction and how gestures could be hidden as everyday actions. These results begin to explain why users accepted or rejected the gestures from the first survey. The second survey demonstrated that the presence of familiar spectators made interaction significantly more acceptable. This result indicates that performative interaction could be made more acceptable by interfaces that support collaborative or social interaction. Chapter 4 explores how users place interactions into a usability context for use in real world settings. In the first user study, participants took advantage of the wide variety of possible performances, and created a wide variety of input, from highly performative to hidden actions, based on location. The ability of this interface to support flexible interactions allowed users to demonstrate the the purposed of their actions differently based on the immediately co-located spectators. Participants in the focus group study discussed how they would go about placing multimodal interactions into real world contexts, using three approaches: relationship to the device, personal meaning, and relationship to functionality. These results demonstrate how users view interaction within a usability context and how that might affect social acceptability. Chapter 5 examines appropriation of multimodal interaction through the completion of an entire design process. The results of an initial survey were used as a baseline of comparison from which to design the following focus group study. Participants in the focus groups had similar motives for accepting multimodal interactions, although the ways in which these were expressed resulted in very different preferences. The desire to use technology in a comfortable and satisfying way meant different things in these different settings. During the ‘in the wild’ user study, participants adapted performance in order to make interaction acceptable in different contexts. In some cases, performance was hidden in public places or shared with familiar spectators in order to successfully incorporate interaction into public places

Levitating Particle Displays with Interactive Voxels

Levitating objects can be used as the primitives in a new type of display. We present levitating particle displays and show how research into object levitation is enabling a new way of presenting and interacting with information. We identify novel properties of levitating particle displays and give examples of the interaction techniques and applications they allow. We then discuss design challenges for these displays, potential solutions, and promising areas for future research

PlaneVR: Social Acceptability of Virtual Reality for Aeroplane Passengers

Virtual reality (VR) headsets allow wearers to escape their physical surroundings, immersing themselves in a virtual world. Although escape may not be realistic or acceptable in many everyday situations, air travel is one context where early adoption of VR could be very attractive. While travelling, passengers are seated in restricted spaces for long durations, reliant on limited seat-back displays or mobile devices. This paper explores the social acceptability and usability of VR for in-flight entertainment. In an initial survey, we captured respondents' attitudes towards the social acceptability of VR headsets during air travel. Based on the survey results, we developed a VR in-flight entertainment prototype and evaluated this in a focus group study. Our results discuss methods for improving the acceptability of VR in-flight, including using mixed reality to help users transition between virtual and physical environments and supporting interruption from other co-located people

A Scoping Review of Barriers and Facilitators to Pap Testing in Women with Disabilities and Serious Mental Illnesses: Thirty Years After the Americans with Disabilities Act

Background: Thirty years after the Americans with Disabilities Act (ADA) was passed, promising equal access to health services for people with disabilities and serious mental illness, research on Pap testing continues to uncover health disparities among women with disabilities and women with serious mental illnesses, including those that identify as an ethnic/racial minority. Aim: The purpose of this paper is to describe and present the literature on the barriers and facilitators women with disabilities and women with serious mental illnesses face with receiving a Pap test using the social ecological model. We also examined the degree to which racial/ethnic minority women were included in these articles. Method: A scoping review was conducted where the research team searched United States academic literature from 1990 through February 2020 in PubMed, Medline, and CINAHL using general subject headings for disability, mental illness, and Pap testing. Results: Thirty-two articles met inclusion criteria. More barriers than facilitators were mentioned in articles. Barriers and facilitators are organized into three groups according to social ecological model and include individual (e.g., socioeconomic status, anxiety, education), interpersonal (e.g., family, living environment), and organizational factors (health care provider training, health care system). Participant’s race/ethnicity were often reported but minoritized populations were often not the focus of articles. Conclusions: More articles discussed the difficulties that women with disabilities and women with serious mental illnesses face with receiving a Pap test than facilitators to Pap testing. Additional research should focus on the intersectionality race/ethnicity and women with disabilities and women with serious mental illnesses in relation to Pap testing

Enhancing Physical Objects with Actuated Levitating Particles

We describe a novel display concept where levitating particles are used to add a dynamic display element to static physical objects. The particles are actuated using ultrasound, for expressive output without mechanical constraints. We explore novel ways of using particles to add dynamic output to other objects, for new interactive experiences. We also discuss the practical challenges of combining these. This work shows how the unique capabilities of levitation can create novel displays by enhancing another form of media