Touchless capacitive sensor for hand gesture detection

This paper presents a capacitive motion-tracking sensor system including the electrodes and interface electronics. The main advantages of the presented method over existing methods include low power consumption, seamless integration, and low cost. The experimental results were obtained which demonstrated the capability of the sensor system to track a human's finger within a 10cm range from the electrodes' plane. The sensor system can be easily integrated into the design of new user interfaces for mobile computing devices such as cellular phones and tablets in order to enable numerous novel applications.