查询词典 projective

This paper presents a fast approach to estimate the pose of human face from a monocular image, combining with the Chinese's appearance morphologic characteristic discovered by human appearance morphologic statistics, and cooperating with the theoretical foundation of projective geometry.

主要研究内容包括： 1。计算机辅助的面貌形态测量模型的建立。在人类学和形态学知识的基础上，分析了姿态估计技术需要使用的面貌形态特征，确定了测量涉及到的人脸特征点，形成可计算模型。

Based on the former chapter, one method based on fundamental matrix and crossrate is proposed in this chapter to render novel image considering the character of fundamental and cross-rate invariant in the perspective project, which utilized the correspondence relationship between the given two images and projective invariant between images to render novel image.

该方法通过将基本矩阵的稳定性求解问题转化为一个有条件的极值求解问题，结合遗传算法良好的全局寻优特点，将该方法很好地引入到基本矩阵的求解中，并取得了良好的实验结果。（5）第五章在上一章的基础上，综合基本矩阵和透视投影中的交比不变性的特点，提出了一种基于基本矩阵和交比的生成新图象的方法，这种利用已知两幅图象之间存在的匹配关系和新图象和已知图象存在的透视不变量，来生成新图象。

ABSTRACT This dissertation describes our investigation of the geometric invariance and geometric invariant over projective transformation group, with the emphasis on the estimation of geometric constraints in image sequence and their applications in computer vision.

本论文介绍了作者对射影变换群上的几何不变性及几何不变量的研究，重点研究了序列图象间几何约束关系的估计及其在计算机视觉中的应用。

Then, it made full use of the theory of harmonic conjugate in projective geometry to calculate the inner parameters of camera.

然后充分利用射影几何调和共轭的理论求取摄像机的内参数。

Two pairs of vanishing points of orthogonal directions from each image are obtained by using the concept of cross ratio and harmonic conjugate in projective geometry and the orthogonal property of the two diagonals on a square. All intrinsic parameters are calculated linearly after capturing the template from at least three shooting angles. Errors of edge detection and line fitting are avoided because the method does not require image matching.

充分利用了射影几何中交比和调和共轭的知识以及正方形模板对角线相互垂直的性质，根据一幅模板图像可以得到两组相互正交的消失点连线，在至少三个不同方向拍摄的图像上线性求解出摄像机的所有内部参数。

It is proved that each separated L-fuzzy locally convex topological vector space is linearly homeomorphic to a projective limit of a family of L-fuzzy normed spaces.

考察了格值模糊拓扑线性空间中归纳拓扑的若干性质，得到了由单一fuzzy线性序同态确定的归纳拓扑的远域基刻画。

Based on projective geometry,a whole set of new stereoscopic3D-PIV theory was established by making use of homogeneous coordinates lineartransform.

文中从射影空间出发，利用笛氏齐次坐标线性变换的方法，建立了一套完整的体视3D-PIV三维重建理论。

This paper gives the method of homogeneous projection coordinates system that is established by original element turning to natural coordinates system under the projective change.

给出在射影变换下以原象元素所建立的齐次射影坐标系化为自然坐标系的方法，不妨称作基元变换法。同时给出射影变换的几何意

The object matching on two image planes of the two cameras is achieved by homography relation educed from an approximate camera projective model.

利用由近似的摄像机投影模型导出的单应性关系，实现两个摄像机图像之间的目标匹配。

Recently, a linear algorithm of projective reconstruction based on the homography induced by the infinite plane was given by Hartley and Rother et al., but they needed 4 points on a reference plane be visible in all views.

因为空间中不在同一直线上的3个点恰好确定一个平面，所以它避免了Hartley和Rother等方法中需要确定空间4个点是否共面这一比较棘手的问题。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。