  This paper introduces a new prototype system for controlling a PC by head
movements and also with voice commands. Our system is a multimodal interface
concerned with controlling the computer. The selected modes of interaction are
speech and gestures. We are seeing the revolutionary of computers and
information technologies into daily practice. Healthy people use keyboard,
mouse, trackball, or touchpad for controlling the PC. However these peripheries
are usually not suitable for handicapped people. They may have problems using
these standard peripheries, for example when they suffer from myopathy, or
cannot move their hands after an injury. Our system has been developed to
provide computer access for people with severe disabilities. This system tracks
the computer user's Head movements with a video camera and translates them into
the movements of the mouse pointer on the screen and the voice as button
presses. Therefore we are coming with a proposal system that can be used with
handicapped people to control the PC.
