确定每个高度的相关颜色梯度，提取每个像素的高度数据，然后将第二级图像分层以生成计算出的高度图像。
The associated color gradients are determined for each altitude, height data for each pixel is extracted, then the secondary image is sliced to produce the computed altitude images.
由上次的测试可知，如果一个东西是保守的，要确定是不是梯度，我们只需要计算旋度，查看它是否是。
The test that we saw last time saying, well, to check if something is a gradient field if it's conservative, 0 we just have to compute the curl and check whether it's zero.
如果有一个梯度场，然后想计算线积分，我知道积分值是,起点的函数值减去终点的函数值。
Well, if I have a gradient field, then if I try to compute this line integral, I know it will be the value of the function at the end point minus the value at the starting point.
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。
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.
这样回避了速度梯度间断的困难，缓和了出口处应力奇性引起的矛盾，同时又减少了计算量。
Thus the difficulties of discontinuous velocity gradient and the stress singularity at the exit point are avoided, and the expense of computation is reduced.
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。
The numerical results show that, the conjugate gradient method can solve the absorption coefficient well in one dimensional system.
研究了将功能梯度材料中应力波传播的计算模型应用到土介质中，提出了梯度土介质的概念。
The model of wave propagation in functionally graded material (FGM) is introduced to soil medium, and the concept of functionally graded soil medium is brought forward.
本文采用基于梯度的光流场计算方法。
它们可用于选择部分重要的状态反馈及部分状态反馈次优控制的梯度法寻优计算。
It can be used in the gradient approach to select part of the important state feedbacks and to compute part of the state feedbacks of the suboptimal control.
为了得到加热产品的更合适的温度梯度，具体的计算间距的公式见图3。
The formula for computing the recommended spacing to obtain an even temperature gradient on the product being heated is shown in Figure 3.
还提出了计算某些物理量的梯度、平流和通量的方法。
Similar technique is applicable to calculation of physical quantities, such as gradient, advection and flux.
提出了一种用于双框架控制力矩陀螺的梯度型伪逆控制律，介绍了控制律的原理与计算方法。
The design of a gradient singularity avoidance pseudo-inverse control law used for double gimbal control moment gyro (DGCMG), its principle and calculation were introduced.
在优化迭代过程中，采用梯度步和最佳矢量步相结合的方法进行计算。
In the optimum iterative procedure, the gradient step and the optimum vector step were adopted to calculate.
用此方程计算出的梯度层厚度随渗碳时间变化的关系与实际测量值比较接近。
The relationship between growth of graded layer and carburizing time calculated by the equation is close to experimental results.
这种格式既能保证原解的大梯度变化的性质，又能节省计算时间，因而具有一定的理论与应用价值。
The scheme can keep the large gradient variation of the original solution and can also save computation time. So, it has some value in theory and application.
以某小区为例，对其风环境进行了数值模拟计算与分析，引入梯度风的概念，指出了小区内建筑分布对小区风场的影响。
The wind environment of a district is calculated and analyzed with numerical simulation, the concept of gradient wind is proposed to explain that buildings' distribution affect the wind field.
经过大量的试验和计算分析表明，环境温度变化率和环境温度梯度对光纤陀螺零位漂移的影响大于环境温度对漂移的影响。
By large amount of experiments and calculations, the result shows the effects on FOG accuracy of temperature rate and its grads are greater than of only the temperature itself.
同时，还可使用迭代的预条件双共轭梯度算法进行计算。
An iterative conjugate gradient algorithm is used in all cases.
ROI提取方法计算人耳大小区域的梯度均值，通过设定合适的阈值得到较少的候选区域。
The mean value of gradient magnitude in the regions, of which size is equal to ear, is computed by the extracting ROI method.
并根据计算结果选出最优的材料梯度方程。
提出了一种基于模糊图像的梯度图像计算模糊宽度的方法。
A method for computing the width of blur is presented based on the gradient image of blurring image.
体绘制流程中，梯度在数据分类和明暗计算中都要用到，因此快速准确的梯度估算对高质量的体绘制算法至关重要。
During volume rendering, gradient will be used both on the procedure Classification and Shading. So rapidity and accuracy of gradient estimation is important to high quality rendering algorithm.
为了轨道优化的实时计算，构造了一类梯度投影下降算法，并且给出实际应用的具体步骤。
The gradient projection algorithms are constructed for the real-time computation of trajectory optimization, and the concrete steps of the algorithms are also given.
在气压地形追随坐标中气压梯度力的计算对地表气压计算很敏感。
An ideal experiment exhibits that pressure gradient force computations in the pressure terrain-following coordinate are sensitive to surface pressure.
该方法是在辐射传递方程离散坐标近似的基础上，用求目标函数极小值的共轭梯度法进行反演计算。
The inverse problem is solved using conjugate gradient method of minimization based on discrete ordinates method of radiative transfer equation.
本文对现有的变分不等式问题的二次外梯度投影算法进行分析，并对可行域为球的二次外梯度投影算法的计算过程进行简化。
This paper makes an analysis of this quadratic outer gradient project algorithms and simplifies the process of the computation of projection needed in this method for the case of domain being a ball.
通过模拟计算，给出低频位相噪声的均方根梯度与聚焦光斑尺寸的初步规律。
The primary relationship between the size of the focal sp ot and RMS of phase gradient was also given by simulation calculation.
通过模拟计算，给出低频位相噪声的均方根梯度与聚焦光斑尺寸的初步规律。
The primary relationship between the size of the focal sp ot and RMS of phase gradient was also given by simulation calculation.
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