- Stanford, CA, USA
Research Interests:
Habituation is a key aspect of the human sensory processing system. This includes the sense of touch, since it allows our skin receptors to be constantly stimulated, yet largely ignored until something of interest occurs or we consciously... more
Habituation is a key aspect of the human sensory processing system. This includes the sense of touch, since it allows our skin receptors to be constantly stimulated, yet largely ignored until something of interest occurs or we consciously focus our attention on the sensations and their meanings. This "ambience" is largely lacking in mobile and wearable systems today, as jarring notifications clamor for our attention. Yet, there are few longitudinal, in-the-wild studies that explore whether and how users can habituate to new ongoing haptic stimuli, especially in practical applications. We report on a three-week in-the-wild study with each participant wearing a vibrotactile device throughout every day. The device rendered two brief vibrotactile pulses every 20 seconds, and varied their durations based on a linked partner’s current activity. Some participants had little difficulty acclimating to the system from the very beginning, but practically all expressed at least some d...
Research Interests: Computer Science and IEEE
Research Interests:
The last few years have seen a revolution in aerial robotics where personal drones are becoming pervasive to our environments and can be bought by anyone anywhere, including at local supermarkets. As they become ubiquitous to our lives,... more
The last few years have seen a revolution in aerial robotics where personal drones are becoming pervasive to our environments and can be bought by anyone anywhere, including at local supermarkets. As they become ubiquitous to our lives, it is crucial to understand how they are perceived and understood by people. The robotics community has extensively theorized and quantified how robotic agents are perceived as social creatures and how this affects users and passersby. However, drones present different form factors that are yet to be systematically explored. This work aims to fill this gap by understanding people's perceptions of drones and how drones physical features correlate to a series of dimensions. We explored the quadcopters available on the 2018 market and built a dataset of 63 images that were evaluated in a user study (N=307). Using the study results, we present a model of how people understand drones based on their design and which physical features are better suited ...
Emerging phone handsets include embedded projectors that will provide a widespread new form of display for mobile users. However, it is not clear how the handheld projector will be used alongside the existing phone screen. The current... more
Emerging phone handsets include embedded projectors that will provide a widespread new form of display for mobile users. However, it is not clear how the handheld projector will be used alongside the existing phone screen. The current approach of many manufacturers is to place the projector in the top of the phone. This typically prevents users from simultaneously interacting with the phone and looking at the projection. The result is that using the phone's screen to supplement or interact with the projected information is difficult. This paper illustrates a technique to dynamically offset the throw angle of a mobile phone projector from the handset's screen to support different tasks. We describe our design and use it to explore three application scenarios that we have implemented.
Current commercial pico-projector systems are mainly designed as a principal or secondary output for which very few systems have interaction capabilities. Recent research, however, has created pico-projection prototypes with user... more
Current commercial pico-projector systems are mainly designed as a principal or secondary output for which very few systems have interaction capabilities. Recent research, however, has created pico-projection prototypes with user interfaces tailored to device or application uses. This paper explores different design possibilities for mobile and embedded pico-projectors and identifies how those designs influence the choice of interaction techniques.
Emerging phone handsets include embedded projectors that will provide a widespread new form of display for mobile users. However, it is not clear how the handheld projector will be used alongside the existing phone screen. The current... more
Emerging phone handsets include embedded projectors that will provide a widespread new form of display for mobile users. However, it is not clear how the handheld projector will be used alongside the existing phone screen. The current approach of many manufacturers is to place the projector in the top of the phone. This typically prevents users from simultaneously interacting with the phone and looking at the projection. The result is that using the phone's screen to supplement or interact with the projected information is ...
Research Interests:
Emerging smartphones and other handheld devices are now being fitted with a set of new embedded technologies such as pico-projection. They are usually designed with the pico-projector embedded in the top of the device. Despite the... more
Emerging smartphones and other handheld devices are now being fitted with a set of new embedded technologies such as pico-projection. They are usually designed with the pico-projector embedded in the top of the device. Despite the potential of personal mobile projection to support new forms of interactivity such as augmented reality techniques, these devices have not yet made significant impact on the ways in which mobile data is experienced. We suggest that this ‘traditional’ configuration of fixed pico-projectors within the device is unsuited to many projection tasks because it couples the orientation of the device to the management of the projection space, preventing users from easily and simultaneously using the mobile device and looking at the projection. We present a study which demonstrates this problem and the requirement for steerable projection behaviour and some initial users’ preferences for different projection coupling angles according to context. Our study highlights the importance of flexible interactive projections which can support interaction techniques on the device and on the projection space according to task. This inspires a number of interaction techniques that create different personal and shared interactive display alignments to suit a range of different mobile projection situations.
Research Interests:
Research Interests:
Due to preservation and conservation issues, manuscripts are normally kept in research libraries far from public gaze. On rare occasions, visitors can see these priceless objects, typically separated from them by a sealed case, with only... more
Due to preservation and conservation issues, manuscripts are normally kept in research libraries far from public gaze. On rare occasions, visitors can see these priceless objects, typically separated from them by a sealed case, with only a fixed double page spread visible from a manuscript that may contain hundreds of folios. This restricts the amount of knowledge offered by these books. This paper proposes the creation of virtual manuscripts as exhibits in their own right in a museum context, and as part of a web-based virtual learning environment offering visitors the unique opportunity of engaging with the manuscripts, providing further possibilities for accessing the heritage and cultural information contained in them. A database supplying information about and from the manuscripts, held in a virtual environment, creates the illusion of their “real” presence and materiality. ‘Living Manuscripts’ aims to stimulate and encourage engagement with vulnerable materials via an innovative virtual experience.