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  • Research Article
  • Open Access
  • B-Spline Active Contour with Handling of Topology Changes for Fast Video Segmentation

    EURASIP Journal on Advances in Signal Processing20022002:793184

    https://doi.org/10.1155/S1110865702203121

    • Received: 26 July 2001
    • Published:

    Abstract

    This paper deals with video segmentation for MPEG-4 and MPEG-7 applications. Region-based active contour is a powerful technique for segmentation. However most of these methods are implemented using level sets. Although level-set methods provide accurate segmentation, they suffer from large computational cost. We propose to use a regular B-spline parametric method to provide a fast and accurate segmentation. Our B-spline interpolation is based on a fixed number of points depending on the level of the desired details. Through this spatial multiresolution approach, the computational cost of the segmentation is reduced. We introduce a length penalty. This results in improving both smoothness and accuracy. Then we show some experiments on real-video sequences.

    Keywords

    • video segmentation
    • region-based active contour
    • parametric active contour
    • B-spline
    • interpolation

    Authors’ Affiliations

    (1)
    I3S Laboratoire, UPRES-A 6070 CNRS, Université de Nice-Sophia Antipolis, 2000 route des Lucioles, Sophia-Antipolis, F-06903, France

    Copyright

    © Precioso and Barlaud 2002

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