cross ratio中文什么意思

例句与用法

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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. A camera calibration method with co - line points is proposed , in which distortion center is located according to cross ratio invariability , and then distortion coefficients are calculated based on a line ' s central projection is a line
   摘要提出一种用共线点列标定摄像机镜头畸变参数的方法，先根据交叉比不变性确定畸变中心，再利用直线的中心投影仍为直线这一性质确定畸变系数。
5. 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。