变换在几何问题中的应用-毕业论文参考网 关键词:正交变换;仿射变换;射影变换。 [gap=393]Key words: Orthogonal transformation;Affine transformation;Projective transformation.
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...变换又包括刚体变换(rigid body transformation),仿射变化(affine transformation),投影变化(projective transformation)。
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regular projective transformation [数] 正则射影变换
singular projective transformation 奇射影变换
projective transformation on projection plane 直射变换
Generic Projective Transformation 常规投射
a projective transformation 射影变换
d projective transformation d射影变换求解
2D projective transformation D射影变换
real projective transformation 实系数射影变换
projective transformation group [数] 射影变换群
In two-view case,a method is presented for calculation 2D projective transformation and construction the virtual elements by combination of spatial points and lines. So more 3D invariants of object’s spatial structures can be extracted from real elements and virtual elements.
扩展了2D射影变换矩阵的求解方法,将单纯利用点集对应的计算模式扩展到利用直线集、点线组合等多种类型来建立两个射影平面的对应关系;总结了平面上基于点、直线元素可求解的多种3D不变量;提出了双视图下由点、直线元素的多种对应关系求解2D射影变换来构造“虚元素”的方法,结合“实元素”和“虚元素”可以提取更多的空间3D不变量。
参考来源 - 目标3D不变特征的提取与应用Firstly, a small number of geometrical feature points are extracted for coarse registration using least-square method. Secondly, more feature points are extracted for advanced registration based on projective transformation.
首先利用最小二乘法进行快速的粗配,再进一步根据特征点的对应性,利用投影变换模型进行精确配准。
参考来源 - 一种分步式多模态视网膜图像自动配准方法 in CThen, we refine the parameters using projective transformation. It is proved that this method can produce good result and fast speed.
我们采用的是基于频域仿射模型的光流方程,即首先计算比较大的空间变换,然后再对其进行透视变换求精,实验证明这样既可以获得较好的效果,也提高了计算速度。
参考来源 - 大视场图像拼接:原理和应用·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
Projective transformation and affine transformation are essential in the image transformation.
仿射变换和透射变换是两种基本的图像变换。
Then, according to the base coordinate of locating rod, gain the coefficients of projective transformation.
然后根据定位杆的基准坐标,得到该层的射影变换算子T;
In this paper we propose a method of projective transformation from pitch surface to cutter surface for studying face mill cutters.
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。
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