交比,cross ratio

1)cross ratio
交比
1.
Algorithm of space plane parameters based on cross ratio invariance;
基于交比不变性的空间平面参数算法


2.
The Application of Cross Ratio
交比在初等几何中的应用


3.
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。


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2)cross-ratio
交比
1.
Based on the cross-ratio invariance theorem, a new method for acquiring characteristic points in the calibration of line structure-light sensor was proposed.
提出了一种基于双重交比不变性的线结构光传感器标定点获取的方法 ,利用该方法和设计的标定靶标 ,可方便的获取大量的高精度的标定点 ,解决了线结构光传感器标定点不易产生且数量少的问题 ,从而可以在一定程度上提高标定的精度 。


2.
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。


3.
This paper has done some studies on arithmetic for this system: presents a method of detecting and tracing moving objects in real time, and analyses their height using the restriction of vanishing lines, vanishing points and cross-ratio in perspective geometry.
文中为实现这种智能视觉监控系统做了一些算法上的研究工作:实现了对运动物体进行实时检测和追踪,并利用透视几何中的消影点、消影线以及交比的约束方法对运动物体高度进行了分析。


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3)cross-linking ratio
交联比
1.
The plugging property of the system is decreased when the dilatation temperature is high and the plugging property of the system is strong when the cross-linking ratio is small.
交联比小的交联聚合物微球封堵能力增强。



4)Orthogonal contrasts
正交比较
1.
Method:Orthogonal contrasts was introduced to analysis the drug interactions in an example as a research about the combined effects of two drugs.
方法:从一个实例着手,使用正交比较方法分析药物相互作用;并基于两样本比较t检验的基本原理,推导出进行多样本比较的t检验方法,并与正交比较的结果进行比较,说明分析思路与计算方法。



5)exchange proportion
交易配比

6)equianharmonic cross ratio feature
等交比性


补充资料：交比
　　见射影几何学。
　　


说明：补充资料仅用于学习参考，请勿用于其它任何用途。

交比,cross ratio