US Patent 10324566 Enhanced interaction touch system

A touch-sensitive apparatus includes an touch sensing part which operates a touch sensor arrangement to provide signal data representing a touch within a touch-sensing region on a front surface of a light transmissive panel; The touch-sensitive apparatus further includes a computer vision system part which operates a camera system to image a scene located externally of the touch-sensitive apparatus, and operates a computer vision controller to detect, based on image data generated by the camera system, at least one object within the scene. The touch-sensitive apparatus enables user interaction by touch control, gesture control and hover control.