Compared with the traditional de-nosing methods by threshold value and translation invariance, the algorithm increases the signal to noise ratio.
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。
After scanning the object image and labeling the connected component, the background and foreground noise could be removed easily by threshold value area expunction.
该方法仅需对图像作一次全扫描即可标记物体所有连通部分，统计标识号，根据阈值面积消除法即可快速去除图像中所有前景和背景噪声。
On the basis of analyzing the basic features of impact signal noise from reactor loose parts, the wavelet nonlinear threshold value filtering method for the use of impact signal extraction is studied.
在分析反应堆松动部件冲击信号噪声基本特征基础上，利用小波非线性阈值滤波方法对冲击信号的提取进行了研究。
The results indicated that the new threshold function could better reserve the characteristics of heart sounds, eliminate noise effectively, and was of strong practical value.
结果表明，新阈值函数能有效地消除噪声和保留心音信号的特征，具有较强的实用价值。
The changing relation between the two restricts the threshold value of signal-to-noise ratio for seismic prospecting.
二者的变化关系制约着地震勘探的信噪比临界门限值。
The changing relation between the two restricts the threshold value of signal-to-noise ratio for seismic prospecting.
二者的变化关系制约着地震勘探的信噪比临界门限值。
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