Eye-controlled system of virtual keyboard

• Main Authors: YEH, MAU-SHIUN, CHANG, SUI, CHEN, YI-MIN, LIN, CHIA-HAU, LIN, CHERN-SHENG
• Format: Patent
• Language: English
• Published: 11.03.2007
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The present invention is an eye-controlled system of virtual keyboard, which comprises: a projection section to project a virtual keyboard onto a plane, and distributing the first to fifth correction points along the two adjacent sides of the virtual keyboard; dividing the virtual keyboard into the first to the third keyboard regions from the perpendicular direction of the virtual keyboard in cooperation with the five correction points arranged in an L-shape; a camera section to input the operator's iris data into a control section when the operator is watching the virtual keyboard. Using the screen display of the control section in cooperation with the determination formula built in its internal program unit, computation is proceeded to control the operation of the virtual keyboard. Thus, it has plural advantages such as more accurate coordinate transformation, simple and accurate correction, simply linear computation, and suitably to be applied in a virtual keyboard which has a long-strip and slightly curved shape.