A New Type of Non-Contact 2D Multimodal Interface to Track and Acquire Hand Position and Tremor Signal

We present a new type of multimodal interface that is able to sense and track a 2D-hand movement and, simultaneously, to acquire a hand tremor signals. The main advantage of the 2D-sensing device is the possibility to track the position of the objects in the environment and to allow the controlling of various actions accordingly, without any physical contact with the hand. Moreover, the device interfaces with a personal computer (PC), like a standard joystick and, if we exclude the tremor acquires facility, it can replace a standard one. To use the tremor facility that this multimodal interface provides, we need additionally only one standard serial port to connect it with the PC.