Noise Challenges in Monomodal Gaze Interaction

Henrik Skovsgaard

    Research output: Book / Anthology / Report / Ph.D. thesisPh.D. thesis


    Modern graphical user interfaces (GUIs) are designed with able-bodied users
    in mind. Operating these interfaces can be impossible for some users who
    are unable to control the conventional mouse and keyboard. An eye tracking
    system offers possibilities for independent use and improved quality of life via
    dedicated interface tools especially tailored to the users’ needs (e.g., interaction, communication, e-mailing, web browsing and entertainment). Much
    effort has been put towards robustness, accuracy and precision of modern
    eye-tracking systems and there are many available on the market. Even
    though gaze tracking technologies have undergone dramatic improvements
    over the past years, the systems are still very imprecise. This thesis deals
    with current challenges of monomodal gaze interaction and aims at improving
    access to technology and interface control for users who are limited to
    the eyes only. Low-cost equipment in eye tracking contributes toward improved
    affordability but potentially at the cost of introducing more noise in
    the system due to the lower quality of hardware. This implies that methods
    of dealing with noise and creative approaches towards getting the best out
    of the data stream are most wanted. The work in this thesis presents three
    contributions that may advance the use of low-cost monomodal gaze tracking
    and research in the field:

    - An assessment of a low-cost open-source gaze tracker and two eye tracking
    systems through an accuracy and precision test and a performance
    - Development and evaluation of a novel innovative 3D typing system
    with high tolerance to noise that is based on continuous panning and
    - Development and evaluation of novel selection tools that compensate
    for noisy input during small-target selections in modern GUIs.

    This thesis may be of particular interest for those working on the use of eye
    trackers for gaze interaction and how to deal with reduced data quality. The
    work in this thesis is accompanied by several software applications developed
    for the research projects that can be freely downloaded from the eyeInteract
    Original languageEnglish
    PublisherIT-Universitetet i København
    Number of pages217
    ISBN (Print)978-87-7949-252-3
    Publication statusPublished - 2012


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