xbnl

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.).)

基于小波变换以及快速傅立叶变换的时频分析程序，很实用(cwt fft)

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.)

说明：  将VTK重建结果在MFC中显示，并有颜色与阀值设置。(VTK reconstruction results will be displayed in the MFC, and color threshold settings.)

对图像的对角线投影，就是沿着对角线进行直方图统计。(Diagonal projection of the image, that is, along the diagonal histogram statistics.)

水平百叶窗显示图片，讲一张图像垂直分成若干份，bitblt一行一行的显示(The level of blinds show pictures, talk about an image vertically divided into several copies, bitblt display line by line)

实现摄影测量中空间后方交会的问题，用以求得像片的内外方位元素(To achieve space resection in photogrammetry issues photograph to obtain the internal and external orientation elements)

计算机图形学的多边形求交算法，实现两个多边形的求交功能(Computer graphics polygon intersection algorithm to achieve two polygon intersection function)

说明：  最近一直在看matlab仿真WSN的资料，今天找到一个仿真LEACH协议的。其主要是为了仿真他自己提出来的分簇协议，并给出了matlab代码，同时给出leach的代码。有兴趣的可以研究一下leach 协议和deec的协议对比(I've been looking at the MATLAB simulation WSN recently, and today I've found a simulation LEACH protocol. The main purpose is to simulate the clustering protocol proposed by himself, and give the matlab code, and give leach code at the same time. Interested can study the LEACH protocol and DEEC protocol comparison)

解决图像的DCT变换与逆变换，为JEPG压缩做铺垫(To solve the image DCT transform and inverse transform, in order to pave the way for JEPG compression)