3方差的专业定义是随机变量的二次中心矩，与期望值之差的平方的加权平均值。
The technical definition of variance is the random variable's second central moment, the weighted average of the square of the differences from the expected value.
根据各特征点对轮廓的贡献，采用弦长加权拟合法对轮廓点进行处理，从而得到轮廓的中心位置。
The points were set different weight for their different effect on the center of the contour in fitting process.
中心加权中值滤波具有较好的边缘保持特性及快速实现的特点，但滤噪能力低于其它中值滤波。
Center weighted median filters has better characteristic on edge preservation and fast filtering, but fail in noise depression.
算法设计为适应于任意窗口尺寸和任意中心加权值，即可以是任意大小的奇数或偶数窗口。
The algorithmic design is fit for any window's size and any center weighted data, on the other words it may be the odd or even window that can be any size.
介绍了基于内容图像检索中多种颜色的特征提取和匹配算法，以及加权欧几里得距离、中心距的加权距离、直方图交集算法等。
Introduces color feature extraction and matching algorithms in content-based image retrieval, such as weighted Euclidean-distance, weighted centre distance, histogram intersection algorithm, etc.
采用区域分层加权后经相关图形分析及实验验证，能使相关的目标最佳匹配区域更小，匹配中心更加突出且易于匹配，从而缩小了匹配范围，提高了匹配精度。
Experiment shows that the easier matching and higher matching accuracy are reached due to the smaller target matching region and more distinguished matching center obtained in the method.
中心加权平均测光。
闪光灯输出功率的计算仍然是根据预闪反射光的中心加权测量结果。
The flash power calculation is also based on centre-weighted metering of the light reflected by the pre-flash.
闪光灯输出功率的计算仍然是根据预闪反射光的中心加权测量结果。
The flash power calculation is also based on centre-weighted metering of the light reflected by the pre-flash.
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