  Smartphones are a popular device class for mobile Augmented Reality but
suffer from a limited input space. Around-device interaction techniques aim at
extending this input space using various sensing modalities. In this paper we
present our work towards extending the input area of mobile devices using
front-facing device-centered cameras that capture reflections in the cornea. As
current generation mobile devices lack high resolution front-facing cameras, we
study the feasibility of around-device interaction using corneal reflective
imaging based on a high resolution camera. We present a workflow, a technical
prototype and a feasibility evaluation.
