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    Improved watershed lips detection and modified H8 tracking system based on Lyapunov stability theory

    Access Status
    Fulltext not available
    Authors
    Chin, S.
    Seng, K.
    Ang, L.
    Lim, Hann
    Date
    2009
    Type
    Conference Paper
    
    Metadata
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    Citation
    Chin, S. and Seng, K. and Ang, L. and Lim, H. 2009. Improved watershed lips detection and modified H8 tracking system based on Lyapunov stability theory, pp. 355-358.
    Source Title
    2009 International Conference on Intelligent Human-Machine Systems and Cybernetics, IHMSC 2009
    DOI
    10.1109/IHMSC.2009.212
    ISBN
    9780769537528
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/40179
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents an automatic lips detection and tracking system using the improved watershed algorithm and a new modified H8 tracking system based on Lyapunov stability theory (LST). A direct lips detection approach using watershed segmentation without preliminary face localization is proposed. The watershed lips detection system is improved to get rid of the face rotation circumstances. Furthermore, the conventional H8 filter is modified according to the LST to ensure that the lips tracking algorithm is always in the stable condition and the tracking error would be asymptotically converge to zero as the time approaching to infinity. The proposed system is evaluated and the simulation results reveal an appreciable performance. © 2009 IEEE.

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