Lucas-Kanade 算法
http://image.sciencenet.cn/olddata/kexue.com.cn/upload/blog/file/2010/9/2010929122517964628.pdf
Horn-Schunk 算法
https://blog.youkuaiyun.com/hhyh612/article/details/79216021
Farneback 光流算法详解与 calcOpticalFlowFarneback 源码分析
https://zhuanlan.zhihu.com/p/33787573
http://www.opencv.org.cn/opencvdoc/2.3.2/html/modules/video/doc/motion_analysis_and_object_tracking.html#calcopticalflowfarneback
显示图
https://blog.youkuaiyun.com/zouxy09/article/details/8683859
FlowNet
https://blog.youkuaiyun.com/u013010889/article/details/71189271
FlowNet2.0
https://blog.youkuaiyun.com/bea_tree/article/details/67049373?utm_source=distribute.pc_relevant.none-task
PWC-NET
https://blog.youkuaiyun.com/qq_38906523/article/details/81078098