用均方差衡量去噪性能，实验表明用鲁棒局部阈值去噪法好于全局阈值去噪法。
The experiment shows that image denoising using the robust local threshold performs better than that using the universal threshold.
与传统的阈值去噪法和基于平移不变量的去噪算法相比，该算法提高了信噪比。
Compared with the traditional de-nosing methods by threshold value and translation invariance, the algorithm increases the signal to noise ratio.
针对小波阈值去噪方法中传统软硬阈值法各自存在的缺点，提出了开方法阈值去噪法。
Aiming at the disadvantages of traditional soft and hard threshold methods for wavelet threshold denoising, the new developed extracting threshold denoising method is proposed.
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