Research and Visualization for the Gaussian Curvature Operator of 3-D Mesh Points 战场大地形空间格网点的高斯曲率算法研究及可视化
These points were uniformly sampled by moving a sphere ( with diameter being the sample step length), along the spine curve, and then the Gaussian method was used to smooth the sampled points. 利用移动球法,球的直径即是采样步长,沿着脊线方向对点列进行均匀采样,然后对采样点列进行高斯平滑,获得光滑均匀的脊线点列。
In order to raise the calculation precision of element conductivity matrix of the compound elements, Augmented Gauss Points Method has been adopted in this paper. According to this method, the number of Gaussian integrating points increases within the compound elements while keeps invariable within the others. 本文通过加密复合单元的高斯积分点个数,对高斯点法做了改进,得到了加密高斯点单元传导矩阵调整法,使复合单元的单元传导矩阵计算值更趋精确。
Based on complex ray theory, the Gaussian beams emitted by complex source points are employed to simulate the far-field pattern of antennas. In this paper. 根据复射线理论,利用复源点高斯波束场来模拟天线的远场方向图。
In the later case, gaussian mapping based vanishing point detection provided by Barnard is more concerned. This method has the advantages to represent as well the finite and infinitive vanishing points. The primary problem that Barnard points out is the uneven accumulator unit. 在有限空间检测方法中,Barnard提出的基于高斯映射的消失点检测,因同时适用于有限远和无穷远消失点的检测,最为引人关注。
Application of Gaussian distribution to the evaluation of students 'points 正态分布在学生学习成绩评估中的应用
Considering the surfaces machined as Gaussian and anisotropic ones and using the theory of elastic contact, the new methods of computing the deformation of a interface, the density of contact points and the real contact area are developed. 本文把机械加工表面当作正态分布各向异性表面,并应用弹性接触理论,推导出了计算接触面变形、接触点密度和实际接触面积的新方法。
Coherent function of sources can be regarded as Gaussian functions of the distance between the two points of interest. Characteristic lengths are the coherent lengths of source plane. 源平面相干函数可以看作是所论两点距离的高斯函数,特定的方差距离即光源的相干长度。
Based on the singular value decomposition, the dimensional analysis is introduced to classify clusters on the Gaussian sphere into point-, curve-, and area-form clusters, each of which is the Gaussian image of a set of points in R3. 提出了基于奇异值分解的维数分析方法将高斯球上的聚类分成点形、线形和面形的聚类。每个聚类对应R3中的一个点集。
The diagnostic accuracy rate of fuzzy neural network with Gaussian membership function was 91%, which was 3 percentage points higher than that of fuzzy neural network with triangular membership function. 高斯型隶属度函数模糊神经网络的总诊断正确率为91%,比三角形隶属度函数模糊神经网络高出3个百分点,而且对病例样本分组变化不敏感。
For determining the surface type of each point, based on the mean curvature and Gaussian curvature, the points in the scattered point cloud are classified. 首先将散乱点云用平均曲率和高斯曲率的符号组合进行分类标识,确定每个点所属的曲面类型。
Choose Gaussian filter to strengthen the searching scope of control points. 选择高斯滤波进行预处理,增大了主动轮廓控制点的搜索范围。
Based on the existed self adaptive Gaussian kernel similarity measure, the new similarity measure assigns a weight for each data point according to its neighbor information, and the aim of which is to reduce the similarities between outliers and other points via assigning small weights for outliers. 基于已有的自适应高斯型相似度度量,新的相似度根据数据点的邻域信息对每个数据点赋以权值,并通过降低野值点的权重来降低野值点与其他数据点的相似度。
We think that conformal surface parameterization is equivalent to finding a proper Riemannian metric on the surface, such that the metric is conformal to the original metric and induces zero Gaussian curvature for all interior points. 认为曲面的共形参数化过程等价于寻找一个合适的黎曼度量,使得该度量和网格的初始度量共形等价,并且它所诱导的Guass曲率在内部点处为零。
After compute the visibility of points of point cloud using Gaussian sphere, there are still a few points that are not visible are flagged "visible". 在利用高斯球进行点的可见性判断后,仍有少数不可见点被判定为可见点。
The proposed method approximates a 3-D region by a parametric surface which is rational Gaussian surfaces. The user can edit the surface shape by changed the parameters of the position of control points. 本方法利用参数化曲面逼近三维区域,这里的参数化曲面是指有理高斯曲面,通过修改生成参数化曲面的控制点位置,编辑曲面形状,从而完成辅助分割的功能。
Subsequently, the EM scattering of whole band is fully characterized via interpolation based on sampling current at Gaussian integral points. 而后,基于对高斯积分点的电流插值计算了其整个频带范围内的电磁散射特性。
Gaussian filter is applied to low resolution 3D FFT from point cloud. In time domain outliers are removed and points are moved onto the iso-surface by an iterative clustering along gradient field. 将三维点云进行较低分辨率的三维快速傅立叶变换进行高斯滤波,然后转换到时域中过滤离群点,按照梯度方向迭代移动到离散等值面。