特征点提取方法
官网的文档
对特征的理解 Understanding Features
harris特征点 Harris Corner Detection
Shi-Tomasi特征点 Shi-Tomasi Corner Detector & Good Features to Track
FAST特征点 FAST Algorithm for Corner Detection
SIFT特征点 Introduction to SIFT (Scale-Invariant Feature Transform)
SURF特征点 Introduction to SURF (Speeded-Up Robust Features)
BRIEF BRIEF (Binary Robust Independent Elementary Features)
ORB ORB (Oriented FAST and Rotated BRIEF)
匹配方法 Feature Matching
举例 Feature Matching + Homography to find Objects
opencv视频获取
sift理论知识可以参考这篇文章Sift算子特征点提取、描述及匹配全流程解析
用到的关于Mask参考的文章详解掩膜
ORB参考文章ORB 一种特征匹配替代方法：对比SIFT或SURF
Numpy参考 多维数组的切片(slicing)和索引(indexing)