Research Assistant

Since may 2012, I am in the Bristol Interaction and Graphics group (University of Bristol, UK). I did a 2 years post-doc in the Human computer interaction lab (Hasso Plattner Institute, Germany) and a Ph.D in the Visualization and Advanced Interfaces group (Telecom ParisTech, Paris).

Touch on curved surfaces

CHI 2011 long paper

With recent advances in display and touch technology, non-planar touch devices, such as bracelets or rings, will soon become reality. To help interaction designers create the best possible interfaces on such devices, we study how device curvature impacts touch input.

Program committees

Associate chair at CHI 2014, 2013 and 2011      Poster chair at IHM2013      Associate chair at MobileHCI 2013 and 2012   


The iPhone was certainly a breakthrough, but I believe future devices will vary in form factors and technologies. My research aims at shaping the software and the hardware of these future mobile devices. In particular, I focus on non-planar and self-actuated devices. I studied touch on spherical surfaces, I built a force feedback touchscreen that translates the user’s finger and I currently design shape changing flexible mobile devices. My research approach is a blend of theory, experimentation, and software/hardware design. Through my work, I intent to help designers create the best possible interfaces and devices we will soon have in our hands.

Selected publications

We built two prototypes of force feedback touchscreen that can translate a finger. We use them to enable spatial gestures not only for input but also for output. Three studies show that there is a transfer of knowledge between input and output gesture.
We introduce the term shape resolution, which adds to the existing definitions of screen and touch resolution. Our metric is based on ten geometric features. We explored six strategies of creating Morphees that are self-actuated flexible mobile devices that adapt their shapes to offer better affordances.