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Wrapping based directional Hartley transform and content based image retrieval
Published in
2008
Abstract
This paper proposes a wrapping based directional Hartley transform (WDirHT) in the Hartley domain. The wrapping based curvelet transform is used to construct the WDirHT in the Hartley domain. The WDirHT is a sparse representation than curvelet transform. The redundancy factor of the transform is 2.82 with computational complexity of O(N2log2N) for NxN image and takes less computation time for reconstruction. The WDirHT is used for dontent based image retrieval (CBIR) application. The sparse nature of WDirHT coefficients is exploited to derive the feature vector for CBIR application. The CBIR algorithm has been tested on different image database and the results show that the retrieval rate is better compared to the several multiresolution CBIR methods. © 2008 IEEE.
About the journal
Journal2008 1st International Workshops on Image Processing Theory, Tools and Applications, IPTA 2008
Open AccessNo
Concepts (20)
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    Applications
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    Computational complexity
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    Content based retrieval
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    Fourier transforms
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    Image processing
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    Imaging systems
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    Information retrieval
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    PHOTOGRAPHIC ACCESSORIES
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    Computation time
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    Content based image retrieval
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    Curvelet transform
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    Feature vectors
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    HARTLEY
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    HARTLEY TRANSFORM
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    Image database
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    Multiresolution
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    REDUNDANCY FACTORS
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    RETRIEVAL RATES
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    SPARSE REPRESENTATIONS
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    Multiresolution analysis