Dan-Marius DOBREA, Horia-Nicolai TEODORESCU, Daniel MLYNEK
An Interface for Virtual Reality Applications

Abstract.
We present an input device for virtual reality (VR), which has applications in tremor and respiration sensing in medicine. We also introduce an ``environmental presence sensor'' that can be used in a ``virtual joystick.'' The joystick senses and tracks the position of the objects in the environment and allows controlling various actions accordingly. The main advantage of the device is the possibility to sense objects without any physical contact (hence the ``virtual operation'' capability). Moreover, the device interfaces with a personal computer (PC) like a standard joystick, with no need for any special hardware or software module.

Keywords: virtual reality, virtual joystick, medical application, respiratory and tremor signal, DSP.