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Browsing by Subject "pupil segmentation"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Wizyjne śledzenie ruchu gałek ocznych
    (Wydawnictwa AGH, 2009) Kryjak, Tomasz
    This paper presents a video-based eye tracker. Firstly, three eye image acquisition systems were tested and the best solution, a camera with an infrared passing filter and infrared illumination, was chosen. The segmentation and center of mass calculation algorithms were described. A system calibration method was proposed. Finally sample test results and further research possibilities were discussed.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Wykorzystanie efektu jasnej i ciemnej źrenicy w wizyjnym śledzeniu ruchu gałek ocznych
    (Wydawnictwa AGH, 2010) Kryjak, Tomasz; Chodak, Jacek
    This paper presents a video-based eye-tracking device that exploits the dark and bright pupil effect and has a 50 Hz sampling frequency. The design of an infrared illuminator, which allows to obtain the dark and bright pupil effect on the even and odd fields of the video signal. Details considering used segmentation and determination of the center of the pupil algorithms, which allow to generate gaze trajectories, were presented.