matlab_声音信号FFT

检测图像模糊的算法代码，具体说明详见readme(Fuzzy image detection algorithm code, specific instructions, see readme)

线性反投影算法（Linear Back Projection，简称 LBP）又称累加法，是最早使用的一种简单（ECT图像重建）成像算法。它将通过某点的所有投影射线进行累加，再反向估算出该点的密度值。从成像观点分析，它是不完全的雷登逆变换（完整的雷登逆变换包括微分、希尔伯特变换、反投影和归一化等步骤）。(Linear back projection algorithm (Linear Back Projection, referred LBP), also known as cumulative method, is the first to use a simple (ECT image reconstruction) imaging algorithms. It accumulates all projection rays through a point, then reverse the estimated density value of the point. From the image point of view analysis, it is not exactly the inverse transform Leiden (Leyden complete inverse transformation involving differential Hilbert transform backprojection and normalization steps, etc.).)

FDK最小角度重建，基于parker加权的投影数据处理实现的最小角度重见(FDK minimum angle reconstruction, the minimum angle parker weighted projection data processing based on the realization Shigemi)

利用MATLAB计算矩形波导TE10模式磁场电场分布并画出图像(Using matlab to calculate the rectangle mode TE10 and draw a picture of E and H)

说明：  1、正弦函数 f (t) = K sin(wt +a) 2、矩形脉冲函数 f (t) = u(t) - u(t - t0 ) 3、抽样函数 4、单边指数函数 f (t) = Ke -t 5、已知信号 f1(t) = u(t + 2) - u(t - 2)， f 2 (t) = cos(2pt) ，用 MATLAB 绘制 f1(t) + f 2 (t) 和 f1(t)′ f 2 (t)的波形。(such as : Sine function f (t) = K sin(wt +a) Rectangular pulse function f (t) = u(t)-u(t-t0) Sampling function One-sided exponential function f (t) = Ke -t Known signal f1(t) = u(t + 2)-u(t-2), f 2 (t) = cos(2pt), draw with MATLAB The waveforms of f1(t) + f 2 (t) and f1(t)*f 2 (t))

基于机器视觉，控制三自由度运动控制台来调整显微镜位置，通过图像处理得到易拉罐的表面刻痕大小和长度。(The software control the motion platform with 3 d.o.f. to position the microscope and then test the notch of cans using image processing.)

分割区域图像,好滴哦将按计划啊房价跌幅 安防科技来得及(for photo segemetation)

机载正侧视SAR雷达仿真和成像，使用matlab编写，直接运行可用(Simulation and imaging of airborne forward-looking SAR radar)

介绍四叉树基于视点LOD算法简化地形的图形编程资料，很有实用性，还带有其它效果的算法(Introduced Quadtree LOD algorithm based on the simplified view of the graphical programming information terrain is very practical, but also with other effects of the algorithm)

基于ORL人脸库，PCA人脸识别构建特征脸源程序(Based on the ORL face database, PCA eigenface face recognition source code to build)