Augmented multitouch interaction upon a 2-DOF rotating disk

Abstract

A visual user interface providing augmented, multitouch interaction upon a non-instrumented disk that can dynamically rotate in two axes is proposed. While the user manipulates the disk, the system uses a projector to visualize a display upon it. A depth camera is used to estimate the pose of the surface and multiple simultaneous fingertip contacts upon it. The estimates are transformed into meaningful user input, availing both fingertip contact and disk pose information. Calibration and real-time implementation issues are studied and evaluated through extensive experimentation. We show that the outcome meets accuracy and usability requirements for employing the approach in human computer interaction. © 2012 Springer-Verlag.