The gradient method detects the edges by looking for the maximum and minimum in the first derivative of the image.
梯度法检测边缘通过寻找最大和最小的图像一阶导数。
By optimizing the objective function with the gradient method the iterative formula about the medium velocity is obtained.
对目标函数进行梯度优化，我们得出了介质速度的迭代公式。
This paper introduces a curvilinear line searching technique, which possesses all the meris of the gradient method, the conjugate gradient method and some of their refined types.
本文介绍一种沿曲线方向线性搜索的算法，这种算法概括了梯度法、共轭梯度法以及它们的改进格式。
Secondly, for the image edge detection, methods including the gradient method, the sharp-processing method, and the Hough transformation were used, and the contour tracing was also conducted.
边缘检测处理部分采用了梯度处理法、锐化处理法、哈夫变换处理法，并对图像作轮廓跟踪处理。
OK, so that's the general method of calculation, but we've seen a shortcut for work when we can show that the field is the gradient of potential.
这就是计算的一般方法，但求功的时候，如果向量场是某个势的梯度,是有捷径可走的。
The method I am using calls for a 10 min, 20-80% acetonitrile-buffer gradient.
我正在用的方法它的梯度是10分钟内，乙腈-缓冲液从20%变到80%。
The traditional watershed transform mainly depends on image gradient but this method is imperfect.
传统流域变换主要依赖图像梯度，该方法并不完善。
For this reason, the authors propose a method to detect fingerprint features directly fr om the fingerprint gradient orientations.
为此，提出一种直接按指纹梯度矢量的方向图进行指纹特征检出的算法。
For this theory, it is better than the traditional fixed damping conjugate gradient method.
从理论上讲，它要优于传统的固定阻尼共轭梯度法。
The fill() method closes any subpaths and then fills each subpath in turn using fillStyle (which can be a color, or, as discussed later, a gradient object) to determine how to draw the fill.
fill()方法使所有子路径封闭起来，然后逐个填充每个子路径，期间使用fillStyle （一种颜色，或一个渐变对象）来决定如何绘制填充。
In this program, the optimization method of "Conjugate Gradient-Least Squares" is employed, since it usually gives good convergent results.
程序中采用了“共轭梯度——最小二乘”优化方法，其收敛性能较好，在较坏的初值情况下也能较快收敛。
And the three optimization problems are solved respectively by the conjugate gradient method, the adaptive bivariate shrinking and the gradient descent method.
并提出分别采用共轭梯度法、二元自适应收缩法以及梯度下降法对以上优化问题求解。
Although there are a lot of the fabricating techniques of functionally gradient material (FGM), the centrifugal casting method is more effective, cheaper and easier to operate.
虽然梯度功能材料的制备方法很多，但效率较高、成本较低、操作较简单的方法是离心铸造法。
The numerical results show that, the conjugate gradient method can solve the absorption coefficient well in one dimensional system.
数值计算的结果表明，共轭梯度法可以比较好的反演辐射系统的吸收系数。
This article mainly introduces the prediction method of the flow pattern, pressure gradient and liquid holdup of two phase flow in horizontal pipelines.
本文着重介绍水平管中这种两相流动的流动型态、压力梯度和持液率的预测方法。
The idea of conjugate gradient path in unconstrained optimization irradiates us to use this method for solving the linear equality optimization subject to bounds on variables.
无约束优化问题的共轭梯度路径构造的思想启迪我们用其来解带线性等式约束和有界变量约束的优化问题。
This paper studies BP network, realizes the method of gradient descent, gets better result than traditional one.
本文研究了BP网络，实现了“梯度下降法”的网络训练方法，获得了较传统方法好的效果。
Conjugate gradient method were choosed to solve the large sparse matrix equations induced by the FEM and computer language FORTRAN was used to programme the numerical simulation system software.
选择共轭梯度法解决由有限元法形成的大型稀疏矩阵方程，应用FORTRAN语言编制了数值模拟系统软件。
The gradient projection method based on continuous scale factor is presented.
提出了基于连续比例因子的梯度投影算法。
The performance of the method is also compared with that of the gradient inverse weighted smoothing method and median filtering by experiments.
并且通过实验将这种平滑方法的性能与梯度的倒数加权平均法、中值滤波法进行了比较。
A new hybrid algorithm which combines the chaos optimization method and the nonlinear conjugate gradient method approach having an effective convergence property is proposed.
利用优化问题的非线性共轭梯度法与混沌优化方法相结合，提出了一种新的混合优化算法。
The method absorbs the advantages of the gradient projection method and minimum norm method.
该方法吸收了梯度投影法和最小范数法的优点。
The paper proposes an adaptive neural network PID controller based on weighlearning algorithm using the gradient descent method for the AC position servosystem of binding and printing.
针对包装印刷传动位置伺服系统，介绍一种基于共轭梯度学习算法的神经网络自适应PID控制方法。
An artificial neural network method is proposed for hydrological forecasting, the hybrid gradient method for multilayer feedforward neural network developed.
提出了径流长期分级预报的人工神经网络方法，给出了多层前馈网络的联合梯度算法。
The conjugate gradient method is employed in developing the algorithm.
在计算方法上，采用共轭梯度法。
The conjugate gradient method is employed in developing the algorithm.
在计算方法上，采用共轭梯度法。
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