weipingmian

在我们的移动端开发中，需要用到折线图，本篇内容就是用flutter写的一个折线图例程。(In the development of our mobile terminal, we need to use the line chart. This article is a line chart routine written by flutter.)

说明：  简单的Halcon 找圆算法，首先进行圆检测(识别圆、圆拟合)，再找出坐标位置(A simple Halcon algorithm for finding circles firstly conducts circle detection (identifying circle and circle fitting), and then finds the coordinate position)

FAST ICA 算法用于ICA实验，可用于人脸识别等领域(FAST ICA algorithm for ICA experiments, can be used in areas such as face recognition)

说明：  用来对数字全息图进行自动对焦，找到逼近真实焦距的焦距值来进行重建(a kind of criterion for automatic refocusing in DH)

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)

实现一个简单的PCA降维与重构程序，用到的数据在.txt文件中。还有用于测试的.m文件(To achieve a simple PCA dimension reduction and reconstruction procedures)

以python语言为平台，对机载激光雷达原始数据Las格式和txt格式进行读取，并根据信息熵确定维度特征计算的最佳邻域半径，最后计算得到最佳邻域半径和最佳维度特征值(Based on Python language, the Las format and TXT format of airborne lidar raw data are read, and the optimal neighborhood radius is determined according to the information entropy. Finally, the optimal neighborhood radius and the optimal dimension eigenvalue are calculated.)

灰度共生矩阵和灰度梯度共生矩阵纹理提取，能够计算纹理的多个测度(Gray Level Co-occurrence matrix and gray-gradient co-occurrence matrix texture extraction)

显示JPEG图片的源码.........................................(show jpeg picture)

说明：  基于mean-shift运动目标跟踪matlab源代码(Based on mean-shift object tracking matlab source code)