Statistical Modeling of Images with Fields of Gaussian Scale Mixtures

  title={Statistical Modeling of Images with Fields of Gaussian Scale Mixtures},
  author={Siwei Lyu and Eero P. Simoncelli},
The local statistical properties of photographic images, when represented in a multi-scale basis, have been described using Gaussian scale mixtures (GSMs). Here, we use this local description to construct a global field of Gaussian scale mixtures (FoGSM). Specifically, we model subbands of wavelet coefficients as a product of an exponentiated homogeneous Gaussian Markov random field (hGMRF) and a second independent hGMRF. We show that parameter estimation for FoGSM is feasible, and that samples… CONTINUE READING
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