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  • A Local Scale Selection Scheme for Multiscale Area Integral Invariants

    Author(s)
    Wang, Bin
    Gao, Yongsheng
    Sun, Changming
    Blumenstein, Michael
    La Salle, John
    Griffith University Author(s)
    Blumenstein, Michael M.
    Gao, Yongsheng
    Wang, Bin
    Year published
    2016
    Metadata
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    Abstract
    Area integral invariant (AII) is a functional obtained by performing integral operations on the closed planar contour of a shape via the convolution with disc kernels. This shape descriptor is insensitive to noise and robust with respect to occlusions. AII intrinsically introduces the notion of scale using the size of kernel radius. However how to select an optimal scale remains unresolved. In this paper, we propose a local scale selection scheme for generating multiscale area integral invariants. For the same scale level, the disc kernel size is not fixed and varies with the contour point where the disc is centered. This ...
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    Area integral invariant (AII) is a functional obtained by performing integral operations on the closed planar contour of a shape via the convolution with disc kernels. This shape descriptor is insensitive to noise and robust with respect to occlusions. AII intrinsically introduces the notion of scale using the size of kernel radius. However how to select an optimal scale remains unresolved. In this paper, we propose a local scale selection scheme for generating multiscale area integral invariants. For the same scale level, the disc kernel size is not fixed and varies with the contour point where the disc is centered. This scheme also provides a scale assignment for emphasising the features extraction at finer scales. The strong discriminative power of the multiscale area integral invariant derived from the proposed scale selection scheme has been validated through experiments on very challenging leaf image retrievals.
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    Conference Title
    2016 INTERNATIONAL CONFERENCE ON DIGITAL IMAGE COMPUTING: TECHNIQUES AND APPLICATIONS (DICTA)
    DOI
    https://doi.org/10.1109/DICTA.2016.7796989
    Subject
    Pattern Recognition and Data Mining
    Publication URI
    http://hdl.handle.net/10072/339292
    Collection
    • Conference outputs

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