1.总体https://www.cnblogs.com/skyfsm/p/6806246.html
2.R-CNN,SPP-NET对比https://blog.csdn.net/v1_vivian/article/details/73275259
3.Fast R-CNN https://blog.csdn.net/wait_ButterFly/article/details/81416145
4.Faster R-CNN https://blog.csdn.net/hunterlew/article/details/71075925
5.FPN https://blog.csdn.net/WZZ18191171661/article/details/79494534
FPN车辆检测实现实例https://blog.csdn.net/Angela_qin/article/details/80944604
之后可能会照着博客实现一遍