English translation for "交比"

[ jiāobǐ ]
anharmonic ratio; [数学] crossratio; double ratio

Related Translations:

交:  Ⅰ动词1.(把事物转移给有关方面) hand over; give up; deliver 短语和例子交党费 pay party membership dues; 交公粮 deliver tax grain to the state; 交还 give back ; return; 交活 turn over a finished item [product]; 交枪不杀! g

Example Sentences:

	1.	The cross ratio he called anharmonic ratio . 他把交比叫作非调和比。
	2.	Desargues proved that the cross ratio is the same for every section of the projection . Desargues证明了投射线的每个截线上的交比都相等。
	3.	Desargues proved that the cross ratio is the same for every section of the projection Desargues证明了投射线的每个截线上的交比都相等。
	4.	In this method , the camera calibration grid for estimating the distortion parameters is easy to get and there is no need to fix the camera when taking pictures 利用交比不变的性质，拟合全视场的无畸变的虚拟网格，得到图像点的偏差，从而计算出畸变系数。
	5.	A separated - parameter method is proposed to calibrate the structure parameter . a vanishing line method is proposed to calibrate the normal vector of light plane and invariability of cross - ratio is proposed to calibrate the baseline length 并提出一种参数分离的方法对传感器进行了标定,采用消隐线法标定激光平面的法矢量,利用交比不变原理标定激光平面的基线长度。
	6.	On the stage of describing the shape of airplane and extracting feature , we derive five - coplanar - point invariant from the basic projective invariant - cross ratio , and resolve the problem of stabilization of five - coplanar - point when there is three points are nearly collinear 在对飞机外型提取特征进行描述的阶段，首先从基本的射影不变量交比不变量出发，推导出了平面五点不量，并解决了当有三点接近共线时不变量不稳定的问题。
	7.	In the self - calibration scheme , the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters . we presents an accurate f method based on corresponding point adjustment . the method adjusts coresponding points according to the fixedness of projective transformed cross ratio , then calculates f matrix accurately through linear and non - linear methods . when computing intrinsic parameter , a matrix , we simplify the step , and stress on the two important parameters of a . the result will be getten through solving kruppa equation based on svd decomposition . in order to compute extrinsic parameters , we use linear method to get initial r and t , then apply non - linear method to accurate them 提出了基于匹配点调整的f求精方法，先根据摄影交比不见性对手工选择的匹配点进行调整，再用线性、非线性结合的方法求精f矩阵；在计算内部参数a中，进行了一定的简化，把重心放在a中重要的两个参数上，用svd分解法计算kruppa方程；在计算外部参数时，首先用线性法求解r 、 t ，然后再用非线性法迭代求精。
	8.	The dissertation is mainly including four section : the first is the experiments done in the tank , which will supply the reliable information of imaging data ; the second is image edge detection by the use of the art of the zernkie moments , which is used to detect the liner and threaded edge of the object , the third is the underwater camera calibration technique , the forth is automatic positioning the location of the camera by used of the art of cross - ratio , the result of which is satisfied 本文工作分为四个部分：第一部分是水槽实验部分，它为后续的工作提供了可靠的图像数据信息；第二部分是基于zom距的直线、曲线边缘提取技术及相关的与处理技术；第三部分，水下摄像机标定技术研究，基于改进的tsai算法，采用逐步分解的标定策略。并探讨了一种相对简单的、灵活的标定技术；第四部分是摄像机定位技术研究，采用具有平移不变性的交比进行摄像机定位，仿真试验的最大误差不超过2 ，效果还是令人满意的。
	9.	Based on projective geometry , the research works about 3d invariance ' s extraction and application have been done in this thesis as following : ( 1 ) the basic theories and concepts in projective geometry are systematically summarized . it includes : the camera models of perspective imaging , projective collineation , cross ratio , a simple compare about invariance ( invariant ) among some geometry transformations , fundamental matrix , epipolar and epipolar line in epipolar geometry , and so on . ( 2 ) the calculation methods for 2d projective transformation are extended from points to multi - element , which includes points , lines , points lines and so on , to get the relationship between two projective planes 基于射影几何理论，论文围绕3d不变特征的提取和应用进行了如下的研究工作： ( 1 )系统总结了射影几何中的若干基础概念，包括：透视成像的相机模型、射影对应、交比不变量、基于不同几何变换下的不变量的简单对比、对极几何中的基础矩阵、对极点、对极线等。
	10.	For bilateral symmetry objects , the techniques on symmetry - point detection and symmetry - axis extraction are presented based on harmonic conjugation relationship . for rotated symmetry objects , the techniques on rotated units description and rotated symmetry center extraction are presented based on center invariants of objects . further more , by using 3d invariants and 2d projective transformation , an approach to recover shape from part symmetry objects is realized on some conditions ( 3 )深入分析了2d对称性目标透视成像的几何特点，将共点四线交比用于目标轮廓上的关键点的特性描述中；利用调和共轭关系，提出了一种针对左右对称型目标的对称点检测和对称轴提取的算法；利用交比关系构造了目标的形心不变量，提出了一种针对旋转对称型目标的旋转对称单元判定、旋转中心提取的算法；进一步利用3d不变量和2d射影变换，实现了一定条件下的对称性目标的形状恢复技术。

Similar Words：

"交保证金" English translation, "交保证金的买空" English translation, "交报告”的英文是“" English translation, "交杯酒" English translation, "交杯石" English translation, "交比，非调和比，重比。" English translation, "交臂并行滑" English translation, "交臂调节器" English translation, "交臂失之" English translation, "交编瓣带" English translation