A New Image Denoising Method via Self-Organizing Feature Map Based on Hidden Markov Models

Author(s):  
Jianxin Dai
Author(s):  
XIAOYUAN YANG ◽  
XUDONG ZHANG ◽  
ZHIPIN ZHU

Wavelet-domain hidden Markov models (HMMs), and in particular, hidden Markov tree (HMT), have been recently proposed and applied to image denoising. In this paper, we present the hidden Markov model and corresponding algorithm based on frame-domain. This model can effectively capture the correlation of wavelet frame coefficients, and we apply this model for image denoising. Furthermore, two new algorithms are developed for denoising. We demonstrate the performance of our new method on some text images with very encouraging results.


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