首先，运用WBCT对图像进行多尺度多方向分解，提取出各子频带的统计特征量；
Firstly, the method decomposes the coke micrograph with WBCT for multi-scale and multi-direction, and extracts the statistical features from each sub-band.
盒维数的简单统计结果可以作为PQ神经网络分类器的输入特征量。
After simple statistics, the dimension can act as the input vector of ANN for PQ classification.
在进行机构可靠性分析时，如何求失效模式中有关随机量的统计特征是一个难点。
In analyzing the reliability of a mechanism, how to get the statistic characteristics of the relating random parameters in a failure model is a difficult problem.
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