There has been considerable research interest recently, in the areas of real time contour tracking and active shape models. This paper demonstrates how dynamic filtering can be used in combination with a modal-based flexible shape model to track an articulated non-rigid body in motion. The results show the method being used to track the silhouette of a walking pedestrian in real time. The active shape model used was generated automatically from real image data and incorporates variability in shape due to orientation as well as object flexibility. A Kalman filter is used to control spatial scale for feature search over successive frames. Iterative refinement allows accurate contour localisation where feasible. The shape model incorporates knowledge of the likely shape of the contour and speeds up tracking by reducing the number of system parameters. A further increase in speed is obtained by filtering the shape parameters independently.<>


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    An efficient method for contour tracking using active shape models


    Contributors:
    Baumberg, A.M. (author) / Hogg, D.C. (author)


    Publication date :

    1994-01-01


    Size :

    456985 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    An Efficient Method for Contour Tracking Using Active Shape Models

    Baumberg, A. M. / Hogg, D. C. / IEEE et al. | British Library Conference Proceedings | 1994


    A Moving Object Tracking Method Based on Active Contour Models

    Fang, T. / Yang, Z. / Shen, C.-l. | British Library Online Contents | 2008


    Co-evolutionary based active contour models in tracking of moving obstacles

    Ooi, C. / Liatsis, P. / Institution of Electrical Engineers | British Library Conference Proceedings | 2001


    Search strategies for shape regularized active contour

    Yu, T. / Luo, J. / Ahuja, N. | British Library Online Contents | 2009