Search - 曲率

[Documents] 一种离散化的最小曲率曲面插值方法

Description: 提出一种离散化的最小曲率曲面插值方法。它通过应用有限元方法得到对实际曲面曲率的真实估计, 并进而讨论了对地层曲面插值中的断层边界的处理方法。
Platform: | Size: 345895 | Author: chuwanchang | Hits:

[Special Effects] 图像边界曲率

Description: 抽取图像边界，计算凸显曲率，主要对二维图像进行处理，提取图像特征
Platform: | Size: 7940 | Author: Edgar324 | Hits:

Description: 在三次样条中，要寻找三次多项式，以逼近每对数据点间的曲线。在样条术语中，这些数据点称之为断点。因为，两点只能决定一条直线，而在两点间的曲线可用无限多的三次多项式近似。因此，为使结果具有唯一性。在三次样条中，增加了三次多项式的约束条件。通过限定每个三次多项式的一阶和二阶导数，使其在断点处相等，就可以较好地确定所有内部三次多项式。此外，近似多项式通过这些断点的斜率和曲率是连续的。然而，第一个和最后一个三次多项式在第一个和最后一个断点以外，没有伴随多项式。因此必须通过其它方法确定其余的约束。最常用的方法，也是函数spline所采用的方法，就是采用非扭结(not-a-knot)条件。这个条件强迫第一个和第二个三次多项式的三阶导数相等。对最后一个和倒数第二个三次多项式也做同样地处理。 -the Cubic Spline, to find three polynomial, approaching every right to point the data curve. The kind of terms, these data points called breakpoints. Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation. Therefore, in order for the outcome of uniqueness. The Cubic Spline, add the cubic polynomial bound by the conditions. By limiting each cubic polynomial of the first order and second-order derivative, it breakpoint in the same Department, we can better identify all internal cubic polynomial. In addition, the polynomial approximation of these breakpoints slope and curvature is continuous. However, the last one and a cubic polynomial in a breakpoint and the final one, not accompanied by polynomials. There
Platform: | Size: 3072 | Author: 讲演 | Hits:

[3D Graphic] lightmap

Description: VC就加directX开发的小系统，随机生成路面曲率，外加光源-VC increases directX development of a small system, random generation curvature of the road, plus light source
Platform: | Size: 730112 | Author: 杨光 | Hits:

[matlab] primdual

Description: 一个简单的图象去噪的算法，利用原偶算法及曲率计算-a simple image denoising algorithm, dual use of the original algorithm and curvature calculation
Platform: | Size: 3072 | Author: lisa | Hits:

[GDI-Bitmap] curveline

Description: 分析了平面曲线和空间曲线拟合过程的区别；引入运动坐标系、曲率向量、密切平面等概念，建立了空间曲线拟合的数学模型，并采用了不同形状的空间曲线对拟合方法进行了验证-analysis of the plane curve and space curve fitting distinction; Introduce sports coordinates, Curvature, Plane close concepts, the establishment of a space curve fitting the mathematical model, and use different shapes of the space curve fitting method of certification
Platform: | Size: 1676288 | Author: 陆美玉 | Hits:

[2D Graphic] CurveLab

Description: 曲线快速匹配matlab程序，功能全面包括FMM迭代，曲率匹配，炼码计算等，非常适用。推荐！-curve fast matching Matlab procedures, including the full functions of FMM iteration, curvature matching, Lian dollar terms, very well. Recommended!
Platform: | Size: 1342464 | Author: 刘恒 | Hits:

[Special Effects] variational_PDE_tools

Description: 变分偏微分方程图像处理工具包，包括计算曲率，方差，L1,L2范数等29个实用算法-variational PDE image processing tool kit, including the calculation of curvature, variance, L1, L2 norm, and other practical algorithms 29
Platform: | Size: 15360 | Author: zhuboy | Hits:

[Special Effects] 20063311048067583

Description: 角点是图像的重要特征，一般指曲率大的边缘点，该代大戏是用MATLAB编写的角点检测算子。-corner image is an important characteristic of large curvature generally refers to the brink, The show is substituting prepared using MATLAB corner detection operator.
Platform: | Size: 60416 | Author: 王一林 | Hits:

[Graph Recognize] Findcoins

Description: 这是一个老外写的利用曲率来识别硬币的MATLAB程序。作者所在国家的硬币偏黄色，拍摄的时候反光比较少，容易识别，国内的硬币则不然，特别是1块和1毛的硬币，很容易产生反光，因此识别时要消除反光。但是这种识别方法简单，实时性好，不失一种良好的参考。国内用图像识别硬币作的还很少，一般都是通过考查硬币的材质来判断硬币，成本较高，而软件来识别成本较低，但是有一定的难度。-This is a foreigner to write the use of curvature to identify the coins of the MATLAB program. The author coins the country where the yellow side, when shooting less reflective, easy identification, the coins are not domestic, especially in a coin and one of Mao, it is easy to produce reflective, so to eliminate reflective recognition. However, this identification method is simple, real-time, and losing a good reference. Domestic use image recognition for the few coins, coins are generally through the test material to determine the coin, the higher the cost, and software to identify lower-cost, but have a certain degree of difficulty.
Platform: | Size: 1179648 | Author: 陈墨 | Hits:

[Special Effects] EDGE_MATCHES

Description: 本程序是基于边缘的图像配准伸用图像的边缘进行图像配准先检测图像的边缘选取图像中最长的边缘检测边缘上的角点信息利用角点处的曲率生成向量自量匹配进行图像配准
Platform: | Size: 1024 | Author: | Hits:

[Special Effects] WAVE_EDGE_MATCH

Description: 本程序利用小波变换的方法来获取图像的轮廓来进行图像配准先用小波变换检测图像中的边缘在轮廓中寻找最长的轮廓计算每间一点的曲率然后对这些数据匹配进行图像配准找到图像的变换参数-This procedure using wavelet transform method to obtain the outline of the image to image registration using wavelet transform edge detection of images to find the longest in the outline of the outline of the calculation of the curvature of each point and then match these data to find the image registration image transformation parameters
Platform: | Size: 1024 | Author: 李云 | Hits:

[Algorithm] demo_MLS

Description: 计算三维散乱点云的曲率，包括主曲率，高斯曲率和平均曲率。详细内容请见readme文件和demo文件-Calculation of three-dimensional scattered point cloud of curvature, including the principal curvatures, Gaussian curvature and mean curvature. Details please refer to readme files and demo files
Platform: | Size: 133120 | Author: yangocean | Hits:

[Special Effects] vector

Description: 基于曲率计算的分段矢量化的Vc程序，很好用的-Calculated based on the curvature of the sub-vector Vc procedures, good used
Platform: | Size: 3072 | Author: flq | Hits:

[OpenGL program] Thsis

Description: 三维模型堆积度，曲率的颜色分段显示只能支持ply2文件-Accumulation of three-dimensional model, the curvature of the color sub-display can only support file ply2
Platform: | Size: 125952 | Author: 舒恒 | Hits:

[File Format] aaaa

Description: 数值计算三次样条实验设表示在上之最小曲率半径。按规范设计规范，其中为实地所测最小曲率半径-Cubic Spline numerical experiments based on that of the smallest radius of curvature. By standardizing design specifications, including for the smallest field of the measured radius of curvature
Platform: | Size: 223232 | Author: ren | Hits:

[Other] EarthDistance

Description: 计算球面距离的类，封装好的。十分好用。包括球面曲率的考虑，以及南北纬东西经的考虑。建议下载学习！-Spherical calculate distance category, a good package. Very easy to use. Including the consideration of spherical curvature, as well as east-west by north and south latitude consideration. Recommended to download to learn!
Platform: | Size: 5509120 | Author: 王涛 | Hits:

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