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最大后验概率估计通过利用经验数据可以获得对未观测量的点估计。它与最大似然估计方法相近,但是该方法扩充了优化的目标函数,即目标函数中融合了预估计量的先验分布信息。因此可以认为最大后验估计是最大似然估计的正则化。本文就其在遥感技术中估计地面高程信息的应用做出了阐述和分析。
Maximum a posteriori probability estimation Point estimates of unobserved values can be obtained by using empirical data. It is similar to the method of maximum likelihood estimation, but the method extends the objective function of optimization, that is, the prior function of information in the objective function is fused with the estimated measure. Therefore, it can be considered that the maximum a posteriori estimation is the regularization of the maximum likelihood estimation. This paper elaborates and analyzes the application of estimating ground elevation information in remote sensing.