semi-soft

The simulation results show that the semi-soft threshold denoising method reduces the noise effectively, improves the ratio of signal and noise, retains the detail of image and obtains the minimum mean square deviation. It finds some application in engineering.

仿真结果表明：半软阈值去噪方法有效地抑制了噪声，提高了信噪比，同时保留了图像细节，获得了最小的均方差，具有一定的应用价值。

This paper deals with the principle of biological contact oxydation, the advantages of semi-soft filling, the acclimation of biological film, and the problems and suggestions on the practical operation of biological contact oxydation pond.

介绍了生物接触氧化法的原理，选用半软性填料的优点，特别是对生物膜培养驯化的阐述具有实际意义，同时提出了接触氧化池在运行中应注意的问题和建议。

First, for threshold in the wavelet domain, a semi-soft threshold function that showed the advantages over hard and soft threshold function with respect to variance and bias of the estimated value is used.

对于小波阈值，使用了根据估计值变量和偏差的能显示软硬阈值的半软阈值函数。GMM普遍用于说话人识别系统中，并且在宽带语音中表现出了很好的性能。