理解深度学习中的卷积

http://www.hankcs.com/ml/understanding-the-convolution-in-deep-learning.html

http://colah.github.io/posts/2014-07-Understanding-Convolutions/

https://mengqi92.github.io/2015/10/06/convolution/

https://www.zhihu.com/question/22298352

https://blog.csdn.net/bitcarmanlee/article/details/54729807