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- W2206641109 abstract "This paper proposes a new Reduced-Reference metric based on the modeling of the Quaternionic Wavelet Transform coefficients from Information Criteria. To obtain the Reduced-References, we will model the Quaternionic Wavelet Transform coefficients using probability density functions whose parameters are used as Reduced-References. Information Criteria are proposed in order to build optimal histograms of the Quaternionic Wavelet Transform coefficients and to obtain the number of distributions in the mixture model. The Quaternionic Wavelet Transform is an improvement of the Discrete Wavelet Transform providing a richer scale-space analysis for 2-D signals. This recent transform separates the information contained in the image better than a classical Discrete Wavelet Transform, and provides a multiscale image analysis whose coefficients are 2D analytic, with one near-shift invariant magnitude and with phase information. From these models, we propose a measure of degradation by comparing probability density functions of the reference image and the distributions of the degraded image of the Quaternionic Wavelet Transform subbands. We shall demonstrate that one phase of the Quaternionic Wavelet Transform provides relevant information in the Image Quality Assessment. Experimentation confirmed the potential of this new structural information (this Reduced-Reference system produces good coefficients of correlation with the Human Visual System)." @default.
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- W2206641109 date "2015-08-01" @default.
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- W2206641109 title "Quaternionic wavelet coefficients modeling for a Reduced-Reference metric" @default.
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- W2206641109 doi "https://doi.org/10.1016/j.image.2015.06.003" @default.
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