2D_Obstacle

Voronoi图是以两点间线段的长度作为距离 ,对平面的一种分割。然而 ,在地理环境中 ,存在着许多自然的或人为的障碍 ,使得从一点到另一点不能直线到达。为了扩大Voronoi图的应用领域 ,本文对传统的Voronoi图进行扩充 ,给出了障碍Voronoi图的定义、性质 ,以及离散生成线段障碍Voronoi图的方法(Voronoi diagram based on the length of line between two points as the distance from a partition of the plane. However, in the geographical environment, there are many natural or man-made obstacles, making from one point to another point of arrival can not be a straight line. In order to expand the area of Voronoi diagram, Voronoi In this paper, the traditional expansion plans, given the obstacles to the definition of Voronoi diagram, the nature of the discrete Voronoi diagram generation segment of the barrier method)

《计算机辅助几何设计与非均匀有理B样条》(Computer aided geometric design and nonuniform rational B spline)

利用连续两张图片中莫尔条纹实现位移测量，对条纹区域像素灰度值采用正弦函数拟合(Moire fringe displacement measurement in two consecutive pictures, fitting the gray value of pixels in fringe region with sinusoidal function.)

二维图形的变换，平移，翻转，尺度变换，反射对称，用MFC实现，这是别人的实现，我又给添加了既平移又反转的情况演示(two dimension graphic convert, translate ,rotation,scaling ,reflection symmetric, used by MFC implemented ,though other implement ,but i add the translate and rotation )

脆弱水印提取算法，与embed.rar中的嵌入算法相对应，可以提供较好的篡改定位(Fragile watermark extraction algorithm, and embed.rar correspond to the embedding algorithm can provide better tamper positioning)

受阻力的球体运动轨迹程序，阻力与运动方向相反，满足阻力方程(By the resistance of the ball trajectory program, drag, and opposite to the direction of movement, and to meet the resistance equation)

说明：  Snake模型，也就是常说得Active Contour模型的MATLAB实现，其中还包含了原文献。(Snake model, which is often put Active Contour MATLAB model, it also includes the original literature.)

二维方位角仰角music算法DOA估计程序 准确的估计来波的方向(2D azimuth music alogrithm doa estimation and exactly DOA )

说明：  几何偏微分方程方法应用于曲线演化的一个小程序，这里是一个matlab的源程序，不是十分复杂，显示了一个哑铃形状的曲线演化的过程(geometric partial differential equations method has been applied to the evolution of the curve of a small program here is a source of Matlab, is not very complex, and shows a dumbbell-shaped curve of the evolutionary process)

用相机拍摄的二维图像重构建筑物的三维模型。(Camera with two-dimensional image reconstruction of three-dimensional model of the building.)