log_Blob

说明：  shepp-logan的2D直接傅里叶反变换法(Shepp-logan 2-D Direct Fourier Inverse Transform Method)

在图像上画一条线，提取所在位置的像素。主要是用来观察横向异质性变化的。(Draw a line on the image and extract the pixels at the location. Mainly used to observe changes in lateral heterogeneity.)

说明：  用VB开发的简单二维绘图程序，特别推荐其中的关于图形几何算法，包括点、直线、圆、圆弧之间的距离、交点、切点。(VB development of simple two-dimensional mapping procedures, in particular the recommendation of the graphic geometric algorithms, including point, line, circle, arc gap between Nodal, the cut-off point.)

基于 Crust 算法的三维点云重构物体表面程序(Simple surface recostruction program based on Crust algorithm Given a set of 3D points returns a triangulated tight surface.)

说明：  采用水平集（level set）方法和mumford-shah图像分割模型的图像分割matlab源代码。(horizontal Collection (level set) methods and Mumford- shah Segmentation Model Image segmentation Matlab source code.)

STL文件读取程序（Matlab）：可以将ASCII格式的STL文件中的数据点信息及网格拓扑信息读出，并显示在屏幕上(a MATLAB program which gets the name of an ASCII STL (Stereolithography) file from the user, reads the 3D graphics information stored in the file, and displays the structure on the screen. )

只需改变结构的内外半径即可即可求解杆状结构和管状结构的相速度和群速度的频散曲线。(Just change the structure of the inner and outer radii can be solved phase velocity dispersion curves and the group velocity of the rod-shaped structures and tubular structures.)

利用MATLAB软件编程实现三维重建，对CT图像实现三维体绘制。(CT images of three-dimensional volume rendering reconstruction)

matlab读入IGS文件，通过把IGS文件读入，实现三维数据点的显示，有利于matlab编辑(read into matlab IGS file read by IGS file to achieve a three-dimensional data points show favor matlab edit)

四邻域加权平均算法 实现了图像的高质量重采样(resample function)