查询词典 interpolation method

This thesis analyzes the reasons of the local extremum in Mi-based image regitstration, then implemented an improved method, which is integrated previous information to get a more smoothly object function and overcome interpolation artifacts effectively. Experimental results show that this methods registration accuracy is improved and can be applied.

本文分析了基于互信息的图像配准过程中出现的局部极值问题，实现了一种结合先验信息获得更加平滑的目标函数的方法，并通过实验证明了该方法的有效性。

Using EMD method, there is bound to be divergent phenomena at the two ends of the upper and lower envelope signal in the data through the three interpolation algorithm, which is end effect. It will affect the quality of EMD decomposition badly, so that the decomposed IMF has no actual physical meaning.

在EMD方法应用中，通过三次条插值算法给出的上、下包络在数据信号的两端不可避免地会出现发散现象，即端点效应问题，会严重影响EMD分解的质量，使分解出的IMF没有实际的物理意义。

In this paper,using mean value coordinates of polygon in computer graphics,the mean value interpolation method setting vertexes of polygon as interpolating nodes is presented.

采用计算机图形学中的多边形平均值坐标，构造出以多边形顶点为插值节点的无理函数插值方法。

Therefore, based on naturalization of natural boundary, the dual-harmonic interpolation method is introduced in to solve the problem mentioned above.

引入先进的基于自然边界归化的二维双调和插值方法，使问题迎刃而解。

Established the aircraft mathematical model of space motion, application, Newton interpolation polynomial method on the aerodynamic parameters identification, use of C language compiled simulation program, and to out the simulation results and analysis.

详细说明：对某飞行器的全空域飞行弹道进行了仿真研究。建立了飞行器空间运动的数学模型，应用"牛顿插值多项式法"对气动力参数进行了辨识，用C语言编制了仿真程序，并给出了仿真结果及分析。

In this method, the precision is improved from three aspects of unknown interpolation, integral region and normal directions.

在该方法中，从未知量插值、积分区域和法线方向三个方面提高了边界元计算精度。

After dealing with the CT image of pedicle screw with interpolation numberical method, for pedicle screw of gradeⅠ,CT had a positive predictive value of 52.7%, a negative predictive value of 94%.,a sensitivity of 67% and a specificity of 94%; for pedicle screw of gradeⅡ, CT had a positive predictive value of 75%, a negative predictive value of 100%.,a sensitivity of 100% and a specificity of 94%.

结果：采用"低窗位、高窗宽"原则处理CT影像后，CT对于Ⅰ度椎弓根螺钉的敏感度为33%、特异度为87%、阳性预测值为32%、阴性预测值为88%。CT 对于Ⅱ度椎弓根螺钉的敏感度为100%、特异度为88％、阳性预测值为60%、阴性预测值为100%。Kapper值为0.603。

As a method based on the Lagrange interpolation, numerical differentiation also has the difference between "global" and "local".

这样，就得到了一个包含计算公式和余项表达的完整的局部Lagrange数值微分公式。

The parametric variable of above process was re-expressed by using linear interpolation method in the corresponding time period, and then, the recurrence subscript and the model value in the previous control cycle was inputted to gain the crystal model weight of the corresponding length increment in the end.

先确定晶体重量、时间和长度初始值，再以给定初始时间确定晶体生长阶段，在相应时间段用线性内插法重新表示上述过程参变量，然后引入循环下标及前一控制周期模型量，得到相应长度增量的晶体模型重量。

With the nearest interpolation algorithm, the results could be acquired at any location, any time within research areas after eliminating periodic variation and boundary interception error. This method could be applied in the marine environment field.

该方法在高维空间中使用最邻近插值算法，消除了周期性变化以及边界截断误差的影响，实现了对研究区域任意时间，任意地点的插值，在海洋环境领域有着一定的应用前景。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。