projective unitary transformation投影幺正变换
projective coordinate transformation射影坐标变换
singular projective transformation奇射影变换
d projective transformationd射影变换求解
orthogonal projective transformation正交射影变换
regular projective transformation[数] 正则射影变换
Generic Projective Transformation常规投射
a projective transformation射影变换
spherical projective transformation球面投影变换
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。
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。
Then, 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