查询词典 coordinate transformation

When a few of local 3D terrain models have been reconstructed respectively,firstly find the common 3D points between every two adjacent local models based on edge detection and image matching,secondly fit the matrix of coordinate transformation employing the technique of separating rotation matrix and translate vector,and lastly register these local 3D models into a single coordinate system.

当恢复出多个局部3D地形模型时，首先基于边缘检测和图像匹配技术提取出相邻局部模型之间的公共数据点，然后采用分离旋转变换和平移矢量的策略拟合出相邻模型之间的坐标转换关系，之后就可以将局部模型统一在同一个坐标系下。

The system gets two image of one object with two CCD, thus obtains depth from two CCD"s parallax. After investigating the operation spot and discussing with surgeons we use LED as markers, and get the marker"s 3-D position with a non-contact optics orientation method. After calibrating the CCD, processing the image, the system can figure out marker"s areal coordinates, get marker"s 3-D coordinate in dummy world coordinate system, thereby obtain instruments 3-D position and orientation. After the coordinate transformation and a series of orientation calculation, operation navigation comes true.

运用两个摄像机对同一目标从不同位置成像，进而从视差中恢复距离；通过对手术现场的仔细了解与手术医师的反复商榷，使用LED作为标志点，利用非接触式光学定位方法提取空间点位置信息：通过对摄像机的标定、图像处理及目标点重心的计算，求出空间点在虚拟世界坐标系下的三维坐标，从而确定了手术器械等的空间位姿，通过空间坐标转换及一系列定位计算，完成了手术导航实验系统。

Usually the data from GPS coordinates WGS - 84 system, and the geocentric coordinate system is used BJ54 coordinate our plane right-angled coordinate system, to the needs of work, we must coordinate transformation.

通常GPS测量所得数据的坐标是WGS -84系统的地心坐标系统，而我们常用的BJ54坐标是平面直角坐标系统，为了工作的需要，我们必须进行坐标转换。

To image plane coordinate An ipsilateral total tangent algorithm is proposed in the paper, and the algorithm is proved to be effective for solving the coordinate transformation matrix by an example.

为了解决数码相机定位问题，利用双目定位法，在确定物平面坐标系与像平面坐标系的坐标变换矩阵的基础上，提出了一种同侧共切线算法，结合算例证明了这种算法可以有效地求解此坐标变换矩阵。

This paper discussed the coordinate transformation method of WGS84 coordinate system to 1954-BeiJing Gauss grid coordinate. Introduced transformation model of WGS84 to Beijing 54 and computing method of transformation parameter. According to different model and computing method, computed and compared with the result combine real data. Think that adopt base-line vector quantity ask four parameters model have higher transformation precision.

本文详细讨论了WGS84大地坐标转换到北京54坐标系下的高斯平面坐标的方法，重点介绍了WGS84和北京54的空间直角坐标的转换模型及转换参数的计算方法，并根据不同的模型和计算方法结合实际数据进行计算和结果的比较，认为采用基线向量求解的四参数模型具有较高的转换精度，分区变换和提高控制点精度也能提高转换的精度。

In this paper,we firstly utilize homogeneous linear coordinate transformation to express the object image conjugate theory of Gauss optic system;then compare it with the acting matrix in Theory of Motion Optics,expatiate on the relations between the coordinate transformation method and Theory of Motion Optics.

利用齐次线性坐标变换，将光学系统的高斯物像共轭理论用齐次坐标变换的方法来描述，并与动态光学理论中的作用矩阵相比较，阐述坐标变换方法与动态光学理论的关系。

By coordinate transformation,specifically,by using orthogonal coordinate system to obtain vertical high resolution ratio in superstratum water of Beibu Gulf and making use of Sigma coordinate system to match terrain in bottom water,the authors intend to set up Beibu Gulf Physical Oceanic Model and use the model to simulate partial tide M\-2,partial tide K\-1 and partial tide O\-1 respectively.

采用坐标变换方法，在北部湾上层海洋采用正交坐标系以获得垂向高分辨率，在底层水体采用 Sigma坐标系以拟合地形，建立北部湾的物理海洋模型，并利用建立的模型分别模拟北部湾的 M2 、K1 、O1 分潮。

Based on the 2 sets of CPI-accuracy plane coordinates composed by the 14 GPS control points along the Hunan-Guangxi railroad line, we carried out coordinate transformation using the Similarity Transformation Method and the Affine Transformation Method in different common point numbers and position distributions.

以湘桂线14个GPS测量点的两套CPI精度的控制点平面坐标为依据，分别用相似变换、仿射变换及不同公共点个数求转换参数进行坐标转换，分析成果精度之间的差异及规律。

During this process, the spherical polar coordinate transformation and the circle polar coordinate transformation are used to carry on the pretreatment for the historical data about investment ratio and investment accumulation rate of the three industrial sections, and the consequent data also be simulated by statistical software-SPSS12.0; Finally, sensitivity analysis according to investment ratio and the fixed assets investment accumulation rate of the three industrial sections are made and a better resource distribution plan for the three industrial sections also be given.

在预测的过程中，利用球面极坐标变换和圆极坐标变换分别对三次产业投资比例和积累率的历史数据进行预处理后，再利用统计软件SPSS 12.0进行拟合；最后，利用固定资产投资的积累率和三次产业的固定资产投资比例进行灵敏度分析，提出了一个较好的三次产业经济的资源分配方案。

By employing coordinate transformation, the overall generalized displacement vector relevant to the motion of pad and axle journal is converted into axle journal displacement vector in a local motion coordinate system, and the oil film force in a partial motion coordinate system is obtained by solving the dynamic characters of a fixed bush bearing.

通过坐标变换，将瓦块和轴颈运动相关的全局广义位移矢量转换为局部动坐标系下轴颈的位移矢量；利用求解固定瓦轴承动力特性的方法求得的局部动坐标系下的油膜力。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。