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Motion-Tracking and Speech Recognition for Hands-Free Mouse-Pointer Manipulation

The design of traditional interfaces relies on the use of mouse and keyboard. For people with certain disabilities, however, using these devices presents a real problem. In this chapter we describe a graphical user interface navigation utility, similar in functionality to the traditional mouse pointing device. Movement of the pointer is achieved by tracking the motion of the head, while button-actions can be initiated by issuing a voice command. Foremost in our mind was the goal to make our system easy to use and affordable, and provide users with disabilities with a tool that promotes their independence and social interaction.