点坐标

同时利用交比不变性原理获取平面靶标上的特征点坐标，完成了结构光平面参数的标定。

At the same time the feature point coordinates on the planar target were achieved with cross ratio invariability theory , then structured light parameters was calibrated .

利用高频GPS坐标时间序列中噪声的自相关性构建了噪声自相关函数，提出基于分形算法的Kalman滤波消噪模型，实现GPS沉降变形的提取与基准点坐标的沉降改正。

It constructs noise autocorrelation function with the use of noise autocorrelation in the high-frequency GPS coordinate time series , puts forward the Kalman filtering denoising model based on the fractal algorithm , and fulfills GPS subsidence deformation extract and the reference point coordinates settlement corrections . 3 .

目的探讨MR定位伽玛刀治疗帕金森氏病靶点坐标的计算。

Purpose : Explore the calculation of target coordinates in Parkinson 's disease treated with Gamma Knife using MR localization .

伽玛刀治疗帕金森病在MRI图像上靶点坐标标定方法的研究

Study of Methods of Marking Target Coordinates on MRI Axial Images in Treating Parkinson 's Disease with Leksell Gamma Knife

GPS激光测距定位系统采集GPS数据，通过相位平滑伪距差分定位给出观测点坐标，然后结合激光测距数据和三维数字罗盘数据，通过多种算法确定目标点的三维坐标。

GPS laser ranging and positioning system can calculate the coordinates of observation point through smoothing pseudoranges differential positioning method with GPS data .

首先，由各GPS点坐标分量的方差确定其统计权；

At first , a " statistical weight " is classically constructed according to the variance of the coordinate component of each GPS point .

采用了一种基于HSV模型，应用H参数特征值来识别特征物体并获得其质心点坐标的方法。

A HSV model based method which has been used for discerning feature objects and capturing the coordinate of their center using H-parameter Eigen value has been achieved .

设计变量是叶栅型线的Bezier曲线控制点坐标。

The Bezier curve is applied to represent the blade profile and the corresponding control points are used as the design variables .

简要介绍了数据挖掘、聚类分析及多维数据可视化，提出将K-means算法输出的多维结果集通过主分量分析转换为3D空间点坐标，实现数据挖掘结果的可视化。

This paper introduces data mining , clustering and visualization of multi-dimension data briefly and presents to transform multi-dimension result sets of K-means algorithm into 3D spatial coordinate through principal components analysis .

在1954北京坐标系和西安80坐标系平面平差时，采用原有坐标控制点坐标改正数之和为零的条件，保证了GPS网的内部一致性。

For Beijing 54 and Xi ′ an 80 coordinate systems , the sums of coordinate change of existed points equal to zero as the con dition adopted , which can keep the internal consistency of the GPS network .

重建后测量400个椎弓根的入点坐标（x，y），即椎弓根轴线在椎骨后表面的投影点与后正中线的距离（x）及与横突中线的垂直距离（y）。

After images were reconstructed , the coordinates including the distance from the projection point of the lumbar pedicle axis to the midline of back ( x ) and to the midline of transverse process ( y ) were measured .

方法：对39例颅内囊性肿瘤MRI定位后，确定穿刺道和靶点坐标，采用立体定向技术抽吸瘤内囊液使肿瘤容积缩小，然后二次MRI定位行伽玛刀治疗。

Methods : 39 patients with single intracranial cystic tumors were treated by gamma knife radiosurgery combined with stereotactic aspiration . After MRI localization , the intra-cystic component was aspirated through stereotactic technique and the volume was measured while aspiration .

对测量系统进行总体设计，并研究了接收面上能流密度和测点坐标的标定方法，同时对CCD相机的非线性和非均匀性进行校正。

The whole measurement system is designed and the calibration methods of the flux density and the coordinates of measuring point on receiving plane are investigated . Then nonlinearity and the heterogeneity of CCD camera are corrected . 4 .

利用WindowsAPI函数，通过设置返回字符轮廓线数和线型判断，并用递推公式计算二次B样条曲线，可获取描述字符轮廓线的点坐标，完成其矢量化处理。

By utilizing Windows API functions , setting retrieving the outline for a character and judging the line-type , computing the quadratic B-spline curves with recursion formulas , the coordinate for describing a character 's outline is obtained and the character vectorization is achieved .

将板料的激光三维成形视为V形激光弯曲成形的复合，分析了曲面筒形件与V形弯曲件的几何相关性，建立了用点坐标表示的弧面曲率表达式。

3D shape of sheet metals can be formed by combining V-shape bendings , the geometrical relationship between curved and V-shape part is investigated in this paper , and the curvature of the shape is expressed by the coordinates of key points .

为了把数字高程模型的数据变换成适合于OR-1磁带格式的象点坐标，用FORTRAN语言编写了一个软接口程序SODAMS/A。

A Software interface & SODAMS / A is written in FORTRAN to transform DEM data into image coordinates suitable for OR-1 magnetic tape form .

利用GPS采集的高速公路控制点坐标，经过数据处理、坐标转换、录入，最后生成高速公路图层，和上述高速公路附属物共同构成了完整的高速公路电子地图。

The coordinate of reference points in the freeway are gathered by GPS , then after data processing , coordinate transition , data inputting , it turn into the freeway graph , which composes the freeway electronic map with the materials subsidiary to the freeway .

给出了在Lambert投影下将雷达回波的极坐标数据转换成经纬度位置，并计算网格点坐标的公式。

In order to convert the radar echo data in polar coordinate into the data in grid coordinate , the formulas for calculating geographical position in Lambert projection are given .

本文以PC-1500为记录器，以测点坐标为记录内容，设计了一套数据采集和编码方法。

By the PC & 1500 pocket computer as recorder and the point coordinate as recording content , this paper provides a new way of the field data collecting and coding .

并在求解过程中引入类TOA（到达时间）的计算方法，然后采用最大似然（ML）法估计位置点坐标，最后通过校正，使定位误差达极小值，从而实现精确定位。

During the process we introduce a location algorithm of time of arrival ( TOA ), then estimate coordinates by using maximum-likelihood ( ML ) estimation and obtain the amending value . So , errors of location is minimal .

本文以Tsai标定法为基础，加入了主点坐标及纵横比的标定，提出了一种平面标定的方法。

On the basis of Tsai calibration , it puts forward a kind of method for planar calibrating , which is joined the calibrations of principal point coordinate and aspect ratio .

在混炖的Lorenz系统中，相点坐标x与y之间的符号关系决定相点能否通过y－z面，从而决定了相点在吸引子的哪一翼中运动。

In Lorenz chaos , the sign relation between coordinates " x " and " y " of a phase point determines whether the point can overpass the y-z coordinate surface or not , and it also determines in which wing of Lorenz attractor the point will stay .

2003年发布实施的《定向井轨道设计与轨迹计算》（SY／T5435-2003）新标准，没有规定入靶点坐标的计算公式，也没有给出入靶点所在测段的判别方法。

The specification about " Directional-Well Trajectory Design and Calculation " released in 2003 did not present the formula for coordinates of entry point to a horizontal target and the discriminant for the surveying interval containing an entry point .

本文在界址点坐标误差独立的假设下导出了多边形面积估计的方差和相邻多边形的协方差，提出计算方差和协方差所用的数据结构，并给出自编PC-1500程序运行的结果。

This paper derives the polygon area variance and the area covariation of adjacent polygons with the assumption of independent distribution of coordinate errors . Data structure for calculating this variance and covariation it presented . The results obtained by running a PC-1500 program developed by the author are given .

在取得了一定的采样点坐标之后，采用了Chio算法建立空间三角网，并提供了利用计算机视觉的方法对三角网进行加密的功能。

After obtaining a certain amount of coordinates of sampling points , Chio algorithm is used to establish space triangulation and a method making the triangulation denser is realized using computer vision technology .

道岔等重要的参照点坐标；

Co-ordinates for points of significance reference for such as turnouts ;

数控编程时一些特殊点坐标值的计算方法

Computational Method of Special Points Coordinate Figure When Programming for NC

平行摄影测量像点坐标的精度分析

Analysis of the Precision Accuracy of the Photospot Coordinate in Parallel Photogrammetry

已知点坐标换算路线里程的方法及程序

A Method and Program of Using Point Coordinate to Convert Route Mileage

利用角点坐标计算图象的矩不变量

Using the Corner Points of an Image to Compute Its Moment Invariants