Barehands: Implement-free interaction with a wall-mounted display
Touch-sensitive wall-based screens provide excellent affordances for interactions that require only a single kind of touch or drag, but do not have the flexibility of mouse and keyboard in providing pointing along with mouse-button and key-press combinations to perform a wider variety of actions. BareHands uses recognition of the shape of the touching hand (one finger, two fingers, side, etc.) to combine the convenience of direct touch with the power of multi-key interactions.
Barehands uses an infrared camera behind the back-projected screen to see the points of touch and to respond accordingly.