Low cost eye tracking for human-machine interfacing
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Data
2011
Autores
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Editora
Edições Universitárias Lusófonas
Resumo
One of the main challenges for developers of new human-computer interfaces is to provide
a more natural way of interacting with computer systems, avoiding excessive use of hand
and finger movements. In this way, also a valuable alternative communication pathway is
provided to people suffering from motor disabilities. This paper describes the construction
of a low cost eye tracker using a fixed head setup. Therefore a webcam, laptop and an
infrared lighting source were used together with a simple frame to fix the head of the user.
Furthermore, detailed information on the various image processing techniques used for
filtering the centre of the pupil and different methods to calculate the point of gaze are
discussed. An overall accuracy of 1.5 degrees was obtained while keeping the hardware
cost of the device below 100 euros.
Descrição
Journal of Eye Tracking, Visual Cognition and Emotion
Palavras-chave
INTERAÇÃO HOMEM-COMPUTADOR, DEFICIÊNCIA MOTORA, EYE TRACKING, HUMAN-COMPUTER INTERACTION, MOTOR IMPAIRMENT, INFORMÁTICA, COMPUTER SCIENCE, EYE TRACKING