基于贝叶斯估计的Nakagami衰落信道图像噪声去除

Xu Huang, A. C. Madoc, D. Sharma
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引用次数: 2

摘要

我们在以前的文章中讨论了基于稳定的贝叶斯估计量的极大似然。它更接近于现实情况,与以前用于贝叶斯估计的方法不同,对于这里讨论的情况,不需要知道噪声的方差。这里的贝叶斯估计是基于在一个Nakagami衰落信道。我们之前的研究结果已经扩展到我们所研究的贝叶斯估计在Nakagami衰落信道中仍然可以很好地去除图像噪声。作为一个例子,在我们的讨论中说明了改进的贝叶斯估计器(软阈值和硬阈值方法)
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Image noise removal in Nakagami fading channels via Bayesian estimator
A maximum likelihood for Bayesian estimator based on alpha-stable was discussed in our previous papers. It is in terms of closer to a realistic situation, and unlike previous methods used for Bayesian estimator, for the case discussed here it is not necessary to know the variance of the noise. The Bayesian estimator here is based on in a Nakagami fading channel. Our previous research results has been extended to that Bayesian estimator that we investigated is still working well for the image noise removal in Nakagami fading channels. As an example, an improved Bayesian estimator (soft and hard threshold methods), is illustrated in our discussion
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