几何中心

在预处理步骤中采用人机对话方法作显示位置调整，中值滤波方法进行图像噪声去除，采用Sobel算子进行边缘的粗提取，并使用跟踪灰度幅值变化的方法对椎体进行定位和几何中心的获取；

In the pre-processing step , display position will be adjusted by man-machine conversation , median filter clears image noise , edge pre-detection by Sobel operator , and locating and get the geometry center of centrum by tracking the gray scale change ;

同时本文给出了基于全球大地水准面的几何中心同地球质心相重合这一假设之上的莫洛金斯基坐标转换法，该法不需要联测公共点即可将WGS-84坐标转换成本地局部坐标。

Meanwhile Molodensky method is given in the paper based on the hypothesis of global geoid geometry center coincided with earth centroid , This method can translate WGS 84 coordinates into local geodetic coordinates without surveying common points in the same time .

一种基于几何中心的模糊c均值聚类方法

A fuzzy c-means clustering algorithm based on geometrical center

一种利用CT片族确定股骨头空间几何中心位置的方法

An approach to determine the spacial centroid of femur head with CT images

肠转运时间采用51Cr方法，以几何中心比值为代表。

Intestinal transit was measured by 51Cr as geometric center ratio in intestine .

当PVT样品点分布不均匀时，储量评估中应选取油藏几何中心点对应的参数值；

When PVT sample points are not uniform in distribution , the parameters of geometric center in a reservoir should be selected to estimate reserves .

本文做了大量的形状群组的分类检索对比实验，实验结果表明相比经典的傅里叶描述子、Zernike矩、不变矩和几何中心矩，本文的方法具有明显的优势。

The classification and retrieval experiment results show the superiority of our method over the classical Fourier descriptor , Zernike moments , invariant moments , and geometric center moments .

推证出在低轨道情况下曲线拟合出的月像几何中心与真实月心（nadir）不能等同；

Pointed out that the geometric center of ( lunar ) image can 't be regard as the nadir point in the low orbit .

对于Stewart并联结构的六维力传感器，应用并联机器人机构学理论，根据传感器的静态数学模型，研究当坐标系建立在下平台的几何中心处时，传感器的力矩各向同性指标。

By using the theory of parallel robotic mechanism , the indices of torque isotropy of six-dimensional force sensor based on Stewart parallel structure with coordinate system locating on lower platform is presented according to static mathematic model .

FEM模拟的控制方程是基于焓变的Fourier导热方程。模拟结果为开模循环周期20s的温度场，几何中心与浇道等铸件特定部位的温度时间曲线。

The FEM was theoretically governed by the enthalpy-based Fourier heat conduction equation , and the results were provided in the form of temperature distribution at the time of die-opening cycle of 20 s , and temperature versus solidifying time relations at gating system and geometric center .

其主要特性是破裂前偏离几何中心的磁面位移很小，中心区总是观测到锯齿现象，破裂后，其电流中断时间大于20ms。

The characteristics are that the displacement of the magnetic surface toward the vacuum vessel is very small and sawteeth always exist before disruption . After disruption , the current drops partly or wholly , and the dropping time is about 20ms .

磁力径向轴承几何中心自检测系统的研究

Study on self-detection system for geometric center of magnetic radial bearing

它位于人脑的几何中心。

It is located in the geometric center of the brain .

通常天线的相位中心与其几何中心是不一致的。

The phase center of antenna is generally different from its geometry center .

离心的不位于或在几何中心的。

Not situated at or in the geometric center .

自适应滤波的新方法&几何中心法

A New Method in Adaptive Filtering-Geometrical Center Method

洛伦兹投影判别法是新近提出的一种有监督的线性流形学习的方法，采用样本点与类内和整体几何中心点的距离建立洛伦兹流形。

Lorentzian Discriminant Projection is a supervised linear method based on manifold learning proposed recently .

基于幅度加权几何中心法的毫米波高分辨雷达角跟踪技术

Angle Tracking Technology Based on Amplitude Weighting Geometrical Center Method for MMW High Range Resolution Radar

三维视觉检测中单光条几何中心位置的确定方法

The Way of How to Compute the Geometry Central of Single Light Line in 3D Measuring

诱饵柱位于笼具的几何中心的底部。

The bait post is positioned at the bottom of the geometrical center of the cage device .

本文正是从数字图像处理的角度，对火焰的面积及几何中心的求解进行了研究，并在此基础上进行了生长速率的计算。

This paper focused on the calculation of flame area and geometry center from the image processing view .

与中国几何中心比较，区域差异在总体上是扩大了；

Against the geometry center in China : on the whole the region discrepancy in China is extended ;

超声波传感器和摄像机组合可获得修剪平面几何中心线的绝对坐标。

World coordinates of geometric center line of pruned plane was acquired by combination of Ultrasonic sensor and CCD camera .

利用实际观测资料初步验证了平均几何中心法，结果表明，与通常采用的重心法相比，此方法对人卫观测中的拖长星像进行中心定位的精度较高。

Results of CCD observations show that mean-geometrical-centering is an effective method to determine the center of stretched star images .

结果表明，甘肃省2004年总体上经济空间差异较大，经济重心与人口重心和几何中心均有较大偏移；

Empirical results show that the center of population and GDP have a significant offset with the center of geometry .

该中心地结构的中心城市是苏州，而苏州位于太湖流域的几何中心；

Suzhou is the central city of the city hierarchy , and it is located in the geometric center of Taihu Basin .

一种利用多站雷达距离差信息确定细柱状目标几何中心及其长度的新方法

A new method for determining the location and length of a thin cylindrical target with range difference from a multistatic radar system

在单光条三维立体视觉检测中，光条几何中心位置的精确定标极其重要，它关系到三维定标的准确性，是其它数据计算的最基本数据。

It is very important on computing central of single light line on3D detection that using single light line for measuring object .

然后，以疑似肿块区域的几何中心为种子点，结合基于种子点的肿块分割算法，自动分割出疑似肿块区域。

Then combining automated seeded mass segmentation algorithm , which can automatically segment suspected massive regions when the center of ROI as seed points .

甘肃省位于中国陆域版图的几何中心，在国家高等教育布局中具有重要的战略地位。

Gansu is located in the geometric center of China Land territory , and takes an important strategic role in the layout of national higher education .