A linear camera calibration method with vanishing point and the invariance of cross-ratio is proposed.
在已知一个消隐点的情况下，利用交比不变性及消隐点的知识对摄像机进行标定。
Single view metrology compute the 3d coordinate of a point based on the projective geometry's characteristic of cross-ratio invariability.
单视图测量理论主要是利用了射影几何中的交比不变性来计算图像上点的三维坐标。
Different from traditional cross-ratio method, this paper develops an uniform algebraic approach to gain vertical ground objects and vertical space objects.
与传统交比方法不同，本文采用了代数的方法求解地面和空中目标的垂直高度。
Based on the cross-ratio invariance theorem, a new method for acquiring characteristic points in the calibration of line structure-light sensor was proposed.
在已知一个消隐点的情况下，利用交比不变性及消隐点的知识对摄像机进行标定。
Based on invariance of the cross-ratio in projective transformation, this paper designed a gray artificial landmark for vision-based recognition by shape information.
本文以射影变换下的复比不变性为理论基础，设计了一种可基于形状信息进行视觉识别的灰度人工路标。
Based on the invariance of cross-ratio and the collinear property of all points for one dimensional target, a global calibration method of multi-vision sensor system is proposed.
基于交比不变性原理和一维靶标点共线的特点，提出了一种多视觉传感器全局校准方法。
The ratio of aircraft length to maximum cross sectional area also influences the intensity of the sonic boom.
飞机的长度和最大横截面面积之比也会影响音爆的强度。
The cross ratio he called anharmonic ratio .
他把交比叫作非调和比。
Cross ratio and element at infinity are two important concepts with projective geometry and primary tools in considerate projective property of figures.
交比和无穷远元素是射影几何中的两个重要概念，它们是探讨图形射影性质的主要工具。
To discover intrinsic properties of a scene by using the computation of cross ratio invariance has been one of the most hot research areas in computer vision fields.
交比是和射影变换有关的一个基本不变量，利用交比不变性的计算来揭示场景的本质特征也是计算机视觉研究的一个热点。
The fixed ratio method has already been illustrated in the example of the Blair and Cross partnership, in which profits were shared equally.
固定比率法已在布莱尔和克罗斯合伙企业的例子中说明，他们的利润是平均分配的。
The cross ratio he called anharmonic ratio.
他把交比叫作非调和比。
Each width series has a certain ratio of bearing width t to the height of the bearing cross-section (Table 1.9).
每个宽度系列具有一定比例的宽度和高度(表1.9)轴承。
Under certain axis ratio bandwidth, the circular polarization axis ratio of the optimized cross dipole antenna can reach 1.
在一定轴比带宽条件下，优化后的十字振子天线正交方向上圆极化轴比可以达到1。
The cross- section curvature ductility ratio for R. C inequiaxial T - shaped, L - shaped and cress - shaped columns is calculated by numerical method.
采用非线性全过程数值分析方法，计算了钢筋混凝土不等肢T形、L形和十字形柱截面模型在多种工况下的截面曲率延性比。
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.
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。
To address this problem, a method basing on the invariance of double cross ratio is proposed for calibrating structured-light-stripe vision sensor, and the calibration target is designed.
针对这个问题，提出了一种基于双重交比不变的线结构光视觉传感器的标定方法，设计了相应的标定靶标。
We introduce a general model for the calculation of the optical signal to noise ratio (SNR) of the optical cross connection (OXC) in optical networks in this paper.
文章给出了计算OXC级联信噪比的一般解析模型，并针对“信号功率均衡”和“总功率均衡”两种方案进行了研究，分析了在这两种特定情况下系统的信噪比特性。
The cross section aspect ratio of fiber and the distribution of matrix surrounding are taken into consideration in the model.
该模型考虑了纤维截面的纵横比及基质在纤维周围的分布，对所有纵横比的情况都适用。
This means that the cross-reaction of the stock equity concentration degree and the non-executive director ratio are negatively correlated to the company performance.
即股权集中度与非执行董事比例的交叉反应与公司绩效正相关，负债率与非执行董事比例的交叉反应与公司绩效负相关。
The body density has a negative correlation with the cross-sectional areas of the thigh, but positive correlation with fat ratio.
运动员身体密度与大腿断面各组成的面积均呈一定的负相关，而体脂率与其呈正相关。
The ratio of co-polarization differential scattering section to cross-polarization differential scattering section increases versus the increase of rain rate.
共极化微分散射截面与交叉极化微分散射截面的比值随降雨率的增大而增大。
The deformation characteristics of non free cutting (NFC) are experimentally studied with the chip cross section geometry, the deformation configuration and the cutting ratio.
通过对切屑截面几何、变形状态及切削比的实验分析，研究了非自由切削的变形特征。
A long-pulse laser, whose energy density can cause the liquid mass transferred, can get a greater ablation ratio and a hole with larger cross section.
能量密度达到造成液态质量迁移条件的长脉冲激光，可获得较大的烧蚀率和截面积较大的通孔。
The treatment can be used to describe the effect of cross angle and density ratio on the axial velocity decay in fully developed jet flow.
该法可较好地描述射流交叉角度、密度比对轴线上轴向速度的影响。
The effect of speed ratio on the texture of non-oriented cold rolled low silicon steel sheet was investigated after cross shear rolling at different speed ratios.
选取低硅无取向硅钢常化态板材，分别在不同速比下进行异步轧制，考察了速比对低硅无取向硅钢冷轧织构的影响。
In the rolling procedure of cross wedge rolling, the technological parameters and instantaneous rotational speed ratio of workpiece and roller have intimate and complicated relationship.
轧件与轧辊的瞬时速比和楔横轧工艺参数之间存在着十分密切而复杂的联系。
When the upper state population is not reversed, the channel with greater ratio of emission and absorption cross-section has greater competitive advantage.
当上能级粒子数处于未反转分布态时，具有较大的发射截面与吸收截面比值的波长信道拥有相对较大的增益竞争优势。
The swelling ratio and drug release rate of citrate cross-linked chitosan in SGF was much more quick than that in SIF, so these film may be used as a drug carrier in the stomach.
柠檬酸根交联壳聚糖膜在SGF中的溶胀以及药物的释放速率比在SIF大得多，这表明这些膜有望作为胃部给药的控释载体。
The influences of formation condition and draw ratio in melt spinning on the hollowness of Circular cross section hollow polyester fiber are studied.
本文就熔融纺丝成形条件及后拉伸倍数对圆中空聚酯纤维中空度的影响进行了探讨。
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