1) thresholding algorithm
软阈值法
2) soft-threshold method
软阈值方法
1.
Maximal SNR principle is used to select the threshold and then soft-threshold method is used to quantify the wavelet coefficient.
首先用最大信噪比准则对小波变换系数进行阈值选取,然后采用软阈值方法对小波系数进行量化处理后再重构。
3) soft threshold algorithm
软阈值算法
1.
Combining the wavelet lifting program with the Direstionlet transform,first and them,the local denoising to image transform region is done using an improved wavelef soft threshold algorithm.
针对多媒体资源库中图像斑点噪声产生的原因,本文提出一种新的斑点噪声抑制算法:将小波提升方案与Directionlet变换相结合,利用改进的小波软阈值算法对图像变换域进行局部去噪。
4) half-soft threshold
半软阈值法
1.
A half-soft threshold other than the soft threshold was used to shrink the high frequency parts.
该算法在中、低频部分采用全变差扩散,在高频部分采用非采样Contourlet变换,并在此基础上用半软阈值法取代软阈值法。
5) Wavelet soft thresholding
小波软阈值法
1.
A wavelet soft thresholding kernel partial least squares (WSTKPLS) method was developed to perform simultaneous quantitative analysis of the mixture of o-dihydroxybenzene, m-dihydroxybenzene, p-dihydroxybenzene and phenol with overlapping spectra.
结合小波软阈值法和核心偏最小二乘法改进回归质量。
2.
The white noise is removed in the functions by wavelet soft thresholding, The results showed that noise is removed as well as the feature of the function is kept by Wavelet Soft Thresholding, The method is better.
利用小波软阈值法对加入一维图像的白色噪音进行除噪。
3.
The statistical noise was removed in SPECT images by wavelet soft thresholding,The results showed that noise in images was removed as well as the feature of the SPECT image was kept by Wavelet Soft Thresholding.
利用小波软阈值法对加入统计噪音的SPECT图像除去噪音。
6) compromised algorithm between soft-thresholding and hard-thresholding
软硬阈值折中法
1.
In a simulation experiment,a second-order spline wavelet is chosen as wavelet function and a compromised algorithm between soft-thresholding and hard-thresholding and adapting th.
在仿真试验中采用二阶双正交样条小波为小波函数,选用软硬阈值折中法和自适应阈值处理小波系数,结果表明将小波变换应用于在役管线漏磁检测中,能很好地去除噪声,提取出有用信号。
补充资料：地理阈值
亦称地理临界值。它将地理系统中的不同状态加以分隔与区分，把某一性质的表现范围加以限制和说明。在此种意义上，地理阈值代表了系统的“状态空间”的非连续性。在一般叙述中，常把地理阈值等同于地理系统边界条件，但二者是有区别的：如果两种不同的状态同时存在于相同的边界条件之中时，地理阈值的表现可能是“非传递性”的转移；而当两种不同状态分置于不同的边界条件之中时，地理阈值的表现可能是“过渡性”地转移。无论是非传递性转移的地理阈值，还是过渡性转移的地理阈值，都使地理系统中不可能具备唯一的、通用的或稳定的解。所谓“解”都是有条件的，都是在地理阈值约束下的解。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条