An improved algorithm of the traditional fingerprint image segmentation algorithm-variance method is proposed.
提出了一种传统的指纹图像分割算法——方差法的改进算法。
Some normalization methods are discussed in detail, including histogram method, expectation-variance method and trend surface analysis.
这里详细介绍了各种测井数据标准化的方法原理，并给出了相应的实例。
Using the maximum between-class variance method (OTSU) obtained image binarization best treatment threshold, and thus image binarization treatment.
利用最大类间方差法（OTSU）求出对图像进行二值化处理的最佳阈值，从而进行图像二值化处理。
Reference 14 gives the control lines of shewhart mean control chart for skewed population which is unknown based on scaled weighted variance method.
基于尺度赋权方差法给出总体分布有偏并假定总体分布未知情况下休哈特均值控制图的控制限。
The proposed evaluation function gains sharper performance than intensity variance method and gradient energy method, and it is qualified for high accurate autofocus.
与方差法和梯度能量法相比，该评价函数具有更好的尖锐性，能够适应高精度聚焦的需要。
Based on maximum between-cluster variance method and uniformity measure, this paper USES maximum entropy principle to select the gray-level threshold value for image segmentation.
在最大类间方差法和一致性准则法的基础上，运用最大熵原理来选择灰度阈值对图像进行分割。
The correlation slope of strain and water level in same borehole at the Urumqi station is computed by the regression analysis and the anomaly of slope is identified by the sieve variance method.
利用回归分析求解乌鲁木齐台同一钻孔内应变和水位的相关斜率，并用筛选法方差判定其异常，研究相关斜率和地震的关系。
The correlation slope of strain and water level in same borehole at the Urumqi station is computed by the regression analysis and the anomaly of slope is identified by the sieve variance method.
利用回归分析求解乌鲁木齐台同一钻孔内应变和水位的相关斜率，并用筛选法方差判定其异常，研究相关斜率和地震的关系。
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