Visual Typer for the Handicapped

One of the methods for handicapped people who can’t talk nor use their hands to communicate with the external world is using their eyes-gaze. Most of the commercial eye trackers used for typing are expensive and not user-friendly. The aim of this paper is to present a low-cost eye-tracking system that can be used easily by consumers. The basic idea of this project is as follows: An eye image is acquired from the web camera, and then the pupil will be detected using image processing techniques. Based on the estimated gaze direction, specific commands will be used to control the Graphical User Interface (GUI) which displays a screen that contains letters and special function buttons.