Description: matlab实现的二维FDTD圆柱散射代码，使用了共形技术，其中包括共形数据-matlab implementation of two-dimensional cylindrical scattering FDTD code, the use of conformal techniques, including conformal data Platform: |
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Author:仁者 |
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Description: 知名学者Hairong Liu的IJCV文章和对应的C++、Matlab混合编程的代码，在图像匹配、共形识别应用中效果很好-Hairong Liu, renowned scholars IJCV article and the corresponding C++, Matlab hybrid programming code in image matching, conformal to identify the effect of application of good Platform: |
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Author:wang |
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Description: 该Matlab程序计算一个三角网格的顶点保角因子CF(conformal factor)，每个顶点有一个CF值。CF的histogram用来作为三维形状的全局描述符。
-this code is based on the theoretical of paper Characterizing shape using conformal factor . Platform: |
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Author:john |
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Description: EasySolve：
求取线性方程组AX+B=0的一组解，若解唯一则直接返回该解，若解不唯一则从解集中随机返回一组 程序会根据方程信息自动计算返回的解的合适数量级和随机中心的偏移量，使得返回随机解的大小合适于调用它的程序。
OrnoBasis：
根据输入向量的维度，返回该维度下的一组标准正交基底，输入的列向量组中的有效向量(非零、线性无关)会被标准正交化并作为基向量、按旧有顺序排在增补列向量的前边。
RotaObj：
任意维度下(>=2)的点集的保形旋转(不变形的旋转，即n维固体上的点集旋转)。任意维度下(>=2)点集的保形旋转都是点集在平行二维面簇上的旋转，旋转方向改变时，整个平行二维面簇的方向都要改变。由于四维以上空间中无法使用基于视觉的右手螺旋定则，编者建立了旋转台的概念：旋转台是旋转中的一个旋转二位面，表示方法为一个旋转中心和两个线性无关的台面向量(台面向量分前后顺序，台面上从第一个向量到第二个向量的小于pi(3.14)的方向作为旋转的正方向)。该函数调用了OrnoBasis函数。
关于这三个函数的更多参数和返回值的信息，请查看代码文件内头部的说明。
原创，无重复。-EasySolve:
Calculating linear equations AX+ B = 0 is a solution, if the only solution is returned directly to the solution, if the solution is not unique the solution set of random returns a set the program will appropriate order information is automatically calculated according to the equation returned Solutions and random center offset, so that the size of the right to return of random solutions to the calling program.
OrnoBasis:
According to the dimension of the input vector, returns a set of standard orthogonal bases under the dimension column vectors enter a valid vector (nonzero, linearly independent) will be orthonormal basis vectors as, according to the old order row Added column vector in front.
RotaObj:
Under any dimension conformal (> = 2) point set rotation (no deformation of the rotation, that point on the set of n-dimensional solid rotation). Under any dimension conformal (> = 2) point set point set rotation are rotated in the two-dimensional plane parallel c Platform: |
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Author:曹腾飞 |
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Description: 一组用于计算不同参考椭球和不同投影之间的坐标变换的函数，包括以下工具：
- 从笛卡尔到地理坐标的
转换，以及 从地理坐标到横向墨西哥映射的反向
转换或者朗伯保形锥形映射以及 从地理到可以处理不规则区域和极点映射的UTM和背面
- 3D / 2D / 1D相似变换（Helmert变换）
- 确定3D / 2D / 1D-Helmert变换的参数
- 执行Helmert变换 后应用残差校正
- 读取和使用NTV2转换参数
- ITRS和ETRS帧之间的3D转换
- 3D / 2D仿射变换及其参数确定
- 3D / 2D到2D投影变换及其参数确定
- Molodensky变换(A set of functions to calculate coordinate transformations between different reference ellipsoids and different projections, including tools on:
- transformation from cartesian to geographic coordinates and back
- transformation from geographic coordinates to transverse mercator mapping or lambert conformal conical mapping and back
- transformation from geographic to UTM and back which can handle irregular zones and pole mapping
- 3D/2D/1D similarity transformation (Helmert transformation)
- determination of the parameters of a 3D/2D/1D-Helmert transformation
- applying residual corrections after performing a helmert transformation
- reading and using NTv2 transformation parameters
- 3D transformation between ITRS and ETRS frames
- 3D/2D affine transformation and its parameter determination
- 3D/2D to 2D projective transformation and its parameter determination
- Molodensky transformation) Platform: |
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Author:wufan620
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