Tecnologia digital assistiva: uma abordagem de visão computacional para rastreamento ocular

Abstract

This paper presents the implementation of a digital assistive technology, based on eye tracking, aiming people who suffer from motor and communication difficulties, with the purpose of improving their communication skills. Based on a web cam, image processing algorithms for face and eye recognition, together with an objective function which identifies the center of the pupil in an image, it is possible to track the movement of the user’s pupil, using it as a cursor which selects commands on a graphical interface on the screen. Thus, it is expected that the condition of communication and autonomy of the patient with Cerebral Palsy will be improved, offering better life quality to the user.