conv1*1的作用

引自：https://www.cnblogs.com/alilliam/p/11402448.html

功能：

1.对输入图里的值做放大或者缩小。

InputSize: 5 * 5 Matrix A, 1 * 1 Matrix B

OutputSize: 5 * 5 Matrix C

分析：cij = b * aij

2.升维或降维。

https://www.cnblogs.com/callyblog/p/7881018.html
https://blog.csdn.net/guoyunfei20/article/details/78401931

Ref.

https://iamaaditya.github.io/2016/03/one-by-one-convolution/