squared-gradient focus 平方梯度聚焦
conjugate gradient squared 重复盖的轭梯度平方
conjugate gradient squared method 共轭梯度平方法
least-squared conjugate gradient method 最小二乘共轭梯度法
A new auto-focusing algorithm was proposed,and it adopted image squared-gradient function based on focus windows by comparing three favorable sharpness functions. Additionally,it presented mathematical model and experimental analysis and results.
通过分析比较3种聚焦效果较好的清晰度评价函数,提出了一种基于聚焦窗口模式的平方梯度函数作为聚焦评价函数,建立了评价函数的数学模型,并给出了实验分析和结果。
参考来源 - 一种新的图像清晰度评价函数·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on building up a model of echo canceller, the convergence of gradient-type stochastic adjustment algorithm of an adaptive filter under the mean-squared error criterion is discussed.
在建立回波抵消器模型的基础上，按最小均方误差准则，导出了自适应滤波器抽头的统计梯度算法和抽头调节的收敛公式。
X ray intensity was linearly related to the distance squared in the measured disance. The gradient was -2.04 confirming the validity of "disance inverse square law" in this experiment.
线强度与距离平方在测试距离内呈线性关系，倾斜值为-2．04，证明本实验中的“距离反平方定律”成立。
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