code_module

opencv

1. fft-频域处理(python) 理想滤波、巴特沃兹滤波和高斯滤波的高通、低通滤波演示

eigen

1. LevenbergMarquardt-linear regression-拟合直线示例

target line is y = 2*x + 5
optimizing...1 1
optimizing...1 1
optimizing...1 1
optimizing...1 1
optimizing...2.00042 5.03425
optimizing...2.00042 5.03425
optimizing...2.00042 5.03425
optimizing...2.00042 5.03425
optimizing...2.00042 5.03425
status: 3
x that minimizes the function: 
2.00042
5.03425

数据结构

1. 四叉树空间划分和碰撞检测

2. opencv flann库的使用示例 opencv/flann/01_knn.cc

knn_result

radius_result