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Habilitation à diriger des recherches

Ubiquitous interaction: mobile, multi-display and freeform interfaces

Marcos Serrano 1 
1 IRIT-ELIPSE - Etude de L’Interaction Personne SystèmE
IRIT - Institut de recherche en informatique de Toulouse
Abstract : My research activities have focused on solving some of the main challenges of three types of ubiquitous displays: mobile, multi-display, and freeform interfaces.By 2017, the number of smartphone users in the world was beyond 2 billions, i.e. one third of the world population. Not only the number of smartphones has dramatically increased, but also their computing capabilities and hence the number of available applications and complex data to manipulate. This raises numerous challenges on how to easily and rapidly interact with such growing quantity of data on mobile platforms. We present four major contributions in this context: we created a novel type of gestures called BezelTap Gestures to solve the problem of rapidly launching commands from sleep mode; we proposed using on-body gestures on the face, i.e. hand-to-face input, to facilitate navigating spatial data on head-worn displays; we explored mobile true-3D displays to facilitate mobile interaction with volumetric data; and finally we studied using the smartwatch output capabilities to facilitate non-visual exploration of spatial data for visually-impaired people.Multi-display environments (MDEs) are common on desktop environments and more and more common on professional and public environments. However they also bring new challenges due to the complexity of the overall system, which can be composed of multiple and heterogeneous devices, arranged in dynamic spatial topologies. We addressed two major challenges in MDEs: the need for fluid interactions in MDEs and complex data exploration using multiple monitors. To tackle the first challenge we adopted two approaches: either using an existing device, in our case a head-worn display interface that we named Gluey, or creating a novel dedicated device, namely TDome. To tackle the second challenge, i.e. facilitate the exploration of complex data on MDEs, we studied the use of arounddevice gestures to manipulate 3D data on public display and extended the overview+detail interface paradigm with multiple detailed views to explore multiple regions of the data simultaneously.Finally, to fulfill the adoption of pervasive displays, we need to facilitate a seamless integration of displays into existing environments, ranging from in-vehicle and wearable displays to public displays. Traditional rectangular displays are not well-suited for these applications, as they can not be easily integrated. Emerging technologies allow for the creation of non-rectangular displays with unlimited constraints in shapes. With this eminentadoption comes the urgent challenge of rethinking the way we present content on nonrectangular displays. Our approach was threefold: first, we carried focus groups to gather both concrete usage scenarios and display shapes; then, we studied text content only, being the fundamental brick of any UI; finally, we explored more complex content layouts combining text and icons.To address the previously presented research challenges, we had to face the methodological challenges of designing, prototyping and evaluating interaction. Traditional design and evaluation methods quite often failed at properly answering the previous research challenges. As a result, every new project came up with the additional challenge of rethinking our approach and research methods at multiple levels: design, prototyping andevaluation. For this reason, I deem of importance to include a chapter on research methods.
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Habilitation à diriger des recherches
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Submitted on : Thursday, February 7, 2019 - 9:26:22 PM
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Marcos Serrano. Ubiquitous interaction: mobile, multi-display and freeform interfaces. Human-Computer Interaction [cs.HC]. Université Paul Sabatier - Toulouse 3, 2018. ⟨tel-01959335v2⟩

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