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    Image Local Features Description through Polynomial Approximation

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    008932521.pdf (2.057Mb)
    Date
    2019
    Author
    Fawad
    Rahman, Muhibur
    Khan, Muhammad Jamil
    Asghar, Muhammad Adeel
    Amin, Yasar
    Badnava, Salman
    Mirjavadi, Seyed Sajad
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    Abstract
    This work introduces a novel local patch descriptor that remains invariant under varying conditions of orientation, viewpoint, scale, and illumination. The proposed descriptor incorporate polynomials of various degrees to approximate the local patch within the image. Before feature detection and approximation, the image micro-texture is eliminated through a guided image filter with the potential to preserve the edges of the objects. The rotation invariance is achieved by aligning the local patch around the Harris corner through the dominant orientation shift algorithm. Weighted threshold histogram equalization (WTHE) is employed to make the descriptor in-sensitive to illumination changes. The correlation coefficient is used instead of Euclidean distance to improve the matching accuracy. The proposed descriptor has been extensively evaluated on the Oxford's affine covariant regions dataset, and absolute and transition tilt dataset. The experimental results show that our proposed descriptor can categorize the feature with more distinctiveness in comparison to state-of-the-art descriptors. - 2013 IEEE.
    DOI/handle
    http://dx.doi.org/10.1109/ACCESS.2019.2959326
    http://hdl.handle.net/10576/15139
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