RingBoard - A Dynamic Virtual Keyboard for Fist Based Text Entry

The combination of a touch sensitive mat and a projector allow a dynamic keyboard to be projected around a user's fist for text entry. RingBoard is a soft keyboard approach using standard off the shelf components that allows people with motor impairments to interact with a computer. The research presented here focuses on increasing the accessibility of text input to a computer utilizing an innovative dynamic keyboard approach. Two different input methods were analyzed for speed and accuracy in a user study consisting of 20 participants. The results of this study show a fist based touch interaction method is as effective as a finger pointing interaction method when using a large touch mat with a top facing projected image.