论文部分内容阅读
基于统计模型的图像去噪的关键是统计模型的选取.α稳定分布能很好地表示具有严重拖尾的数据的统计分布.该文采用α稳定分布来对图像小波域系数进行建模,并采用贝叶斯估计来对无噪图像进行估计.通过将该算法与近来的一些方法进行比较,仿真结果表明该算法具有好的去噪效果.
The key to image denoising based on statistical model is the selection of statistical models.α-stable distribution can well represent the statistical distribution of data with severe trailing.This paper uses α-stable distribution to model the image wavelet coefficients Bayesian estimation is used to estimate the noise-free image.Compared with some recent methods, the simulation results show that this algorithm has a good performance of denoising.