射影变换则有可能解决这一困难。
射影变换在高等几何中是十分重要的。
给出了半对称度量循环联络在射影变换下的不变张量。
The invariant tensor under projective transformations of semi- symmetric metric- recurrentconnectionsisobtained.
然后根据定位杆的基准坐标，得到该层的射影变换算子T；
Then, according to the base coordinate of locating rod, gain the coefficients of projective transformation.
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 invariance of the cross-ratio in projective transformation, this paper designed a gray artificial landmark for vision-based recognition by shape information.
算法不仅能适应目标物体在旋转、缩放、平移变换下的不变性识别。而且能适应仿射及射影变换下的不变性识别。
The algorithm can adapt to object recognition, invariant not only under rotation? Scaling? Translation, but under affine and projective transformation.
本文讨论了任意函数类的一条光滑平面参数曲线段，在适当的射影变换下，可以变为相应的有理形式的平面三阶参数曲线。
By using a certain projective transformation, a smooth planar parametric curve with any function may be changed into a new planar parametric curve of order 3 in a rational form.
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。
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.
文中借助于形象思维把齿轮的啮合几何化，提出了一种研究按滚切法工作的切齿刀具的方法，从节曲面到齿曲面的射影变换。
In this paper we propose a method of projective transformation from pitch surface to cutter surface for studying face mill cutters.
本文用射影观点考察三角形的“五心”定理，通过配极变换推出五个新的命题。
The author of the essay studies the transmutation of the triangular theorem of "Five Centers" theorem from the projective viewpoint and puts forward five thoughtful propositions through polarization.
本文用射影观点考察三角形的“五心”定理，通过配极变换推出五个新的命题。
The author of the essay studies the transmutation of the triangular theorem of "Five Centers" theorem from the projective viewpoint and puts forward five thoughtful propositions through polarization.
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