Wavelet domain HMT models the dependencies of multiscale wavelet coefficients through the state probabilities of the wavelet coefficients, whose distribution densities can be approximated by Gaussian mixture model.

 
  • 小波域HMT模型采用混合高斯模型刻畫(huà)各子帶系數的概率分布;并通過(guò)小波系數隱狀態(tài)在多個(gè)尺度之間的Markov依賴(lài)性來(lái)刻畫(huà)自然圖像小波系數隨尺度減小而指數衰減的特性.
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