Wearable input device by fingertip motion

This paper proposes a wearable device to help patients who are bedridden or have trouble in muscle strength to hold a mobile device. Wearing this device enables patients to input mobile device at arbitrary posture. The device is composed of a gyro sensor, an acceleration sensor, and a nail color sensor. This device is used to help people input, making use of the change of the nail color. When pressure is placed on the human fingertip, the color of the nail change. This is applied to click on the mouse. They can operate mobile device by touching their bodies, armrest, and other things. This is helpful for those who are bedridden or cannot sit or move their arms.