Computer Interface by Gesture and Voice for Users with Special Needs

We propose an infrared sensor based cost effective human-machine interface interpreting the user´s hand or head gestures. This system targets people suffering from reduced mobility as well as specific professionals operating in constraining situations. This design allows using simple head movements to perform basic computer mouse operations, such as moving the mouse cursor on a computer screen. To improve functionality, the system uses voice recognition to execute repetitive movements, such as clicks and double-clicks. We explain two different infrared sensor layouts and discuss the way our design detects and processes a user´s head or hand movements. Furthermore, we explain the benefits and drawbacks of using voice recognition in our design. The conclusion presents our results as well as future perspectives for our design