射影性质

两条异面直线的距离也不必要找出公垂线段，只需利用向量的射影性质来解即可。

Two different surface straight lines distance not essential discovers male hangs the line segment , only must solve using the vector projective property then .

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。

Cross ratio and element at infinity are two important concepts with projective geometry and primary tools in considerate projective property of figures .

双曲抛物面与单叶双曲面的射影性质应力抛光技术加工抛物面的实验研究

Projectivity of Hyperboloids of One or Two Sheets ; Experimental Investigation of Stressed Mirror Polishing on Paraboloid

对极几何表示了同一场景中两幅图像之间的几何关系，它独立于场景结构，仅依赖于摄像机的参数，所以，对极几何是两幅图像间固有的射影性质。

Epipolar geometry is the same scene that the geometric relationship between the two images , it is independent of scene structure and only depends on the camera parameters , it is the nature of the inherent projective between two images .

只是运用射影几何的性质，通过简单的几何关系，对非标定单摄像机拍摄的单幅图像，求解其从2D图像平面到真实的3D平面的非线性单映射关系。

The nonlinear mapping between 2D image plane and the plane in the 3D world is conformed depending on property of projective geometry and relation of geometry .

不为射影改变的性质的几何学。

The geometry of properties that remain invariant under projection .

射影平面的拓扑性质

The topological properties of the projective plan