Tangible Volumetric Brushing in Augmented Reality

International audience; We discuss a 3D volume selection technique supported by Augmented Reality (AR) using both a tangible multi-touch device and an AR Head-Mounted Display (AR-HMD). While the HMD stereo-scopically renders the dataset, the tablet allows the user to draw a lasso that can be extruded using the tablet's relative or absolute position and orientation. This interaction is inspired by the original Tangible Brush technique. We aim, with this setup, to understand the implications of a tangible device where its absolute position now has meaning in the user's output space compared to traditional implementations where only the relative movements are captured.