Patent attributes
Disclosed is a wearable device. The wearable device includes a depth sensor configured to 3-dimensionally sense a user's hand and to generate 3D scan information, a finger recognition unit configured to sense skin lines of user's fingers and to generate pattern information, an image processor configured to generate a 3D model of the user's hand based on the 3D scan information and to add a pattern representing the skin lines of the user's fingers to the 3D model based on the pattern information, and a key determination unit configured to, when the finger recognition unit senses a user's key input motion, generate an input value matching the key input motion, and the finger recognition unit senses the key input motion by comparing the sensed skin lines of the user's fingers with the pattern added to the 3D model.