Optical tracking system operates on a standard PC platform and includes three cameras and a frame grabber. The system is able to track the position and orientation of a user's head and stylus in a cave-like volume. Active LEDs generate optical markers, which are acquired by the cameras. The system follows events in real time, processing 25 image frames per second.
Oral Analgesic is a medicine that is taken to stop pain. An oral analgesic in its most basic form is simply a painkiller taken via the mouth. Other forms of oral analgesic are known as non-steroid anti-inflammatory drugs. These drugs are very effective even in small doses. They are usually prescribed as an oral analgesic, but some can be given as an injection. They are appropriate to ease pain for a minimum amount of time.
