脉冲响应不变法设计IIR数字滤波器matlab

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.).)

检测图像中的轮廓，并定位坐标，可以对图片特征惊醒提取。(Detect the image contours, and position coordinates can be awakened picture feature extraction.)

这是一个基于地震电磁时频图像的特征区域分割算法的程序(it is very good)

说明：  有关连通域的提取，以肺部图片作为示例，使用bwlabel函数，非常方便(Connected domain on the extraction of the lung images as an example, the use of bwlabel function, very convenient)

说明：  图像匹配的的原图和目标图片，很实用的，欢迎下寨(image matching the maximum and objectives of the pictures, very practical and welcome Xiaqian)

说明：  包括如何将几百个*.txt的文件读入程序，并通过快速傅立叶变换进行数据处理画出图像。(including how to hundreds*. txt file into the process, and through the fast Fourier transform data processing paint images.)

说明：  基于boosted的粒子滤波，用于冰球的跟踪(Based on the boosted particle filter for tracking hockey)

说明：  小波去噪的程序，很好用，推荐给大家使用。(Wavelet denoising procedures, very easy to use, recommended for everyone to use)

对数及坐标变换，傅里叶梅林变换参考代码，包含多个文件(Logarithmic and coordinate transformation)

盒子覆盖方法,用于求分形网络的维度，是复杂网络分析的重要手段(box-covering metthod,fractal demession,self-similar )