The corresponding nonlinear threshold functions (bivariate shrinkage function) are derived from the model using the Bayesian estimation theory.

基于贝叶斯估计理论，得到了相应的非线性阈值函数（双变量收缩函数）。

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This paper achieves noise reduction by using wavelet packet transform, semisoft shrinkage function, Donoho standard deviation estimate and threshold obtain based on statistics.

计算结果表明：变形统计值与变形监测值吻合较好，统计复相关系数较大，估计标准误差较小。

youdao

This paper achieves noise reduction by using wavelet packet transform, semisoft shrinkage function, Donoho standard deviation estimate and threshold obtain based on statistics.

计算结果表明：变形统计值与变形监测值吻合较好，统计复相关系数较大，估计标准误差较小。

youdao