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- W2380140330 abstract "In this paper, a Gaussian mixture distribution model of wavelet coefficients is proposed. We use a two-state Gaussian mixture to fit the distribution of the coefficients in the high frequency subbands after wavelet transform. The distribution with small prior probability and large variance represents a small amount of wavelet coefficients with large amplitude; and the distribution with large prior probability and small variance represents a large amount of wavelet coefficients with small amplitude. We solve the parameters of the Gaussian mixture distribution by a fast EM algorithm based on histogram feature. The experimental results show the validity of this model. ;;" @default.
- W2380140330 created "2016-06-24" @default.
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- W2380140330 date "2002-01-01" @default.
- W2380140330 modified "2023-09-27" @default.
- W2380140330 title "Using Fast EM Algorithm for Implementing a Gaussian Mixture Distribution Model of Wavelet Coefficients" @default.
- W2380140330 hasPublicationYear "2002" @default.
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