...强后二组实验动物各时间点T2WI像上肝脏信号强度,在背景区域选取较大的ROI,测背景噪声的标准差(Standard deviation of the noise,SD)。
基于4个网页-相关网页
Standard deviation of current noise is qualified to compare corrosion rates of metals with the same corrosion type.
电流噪声标准偏差可用于比较同一种腐蚀类型下材料的腐蚀速度；
Noise scale factor is introduced and used to describe and process the standard deviation of photoelectrons of photodetector.
引入噪声比例因子来描述和处理光电探测器的误差。
The present method for noise reduction with wavelet transform is based on the thresholding method and threshold selection will depend on the estimation of the noise standard deviation.
目前的小波去噪绝大多数都是基于阈值决策的方法，而阈值选择往往都是建立在对信号小波变换系数的方差估计上。
应用推荐