博客：
https://blog.csdn.net/cherry_yu08/article/details/80846146
https://blog.csdn.net/qq_36165459/article/details/78321054
https://blog.csdn.net/mpsk07/article/details/79522809
https://blog.csdn.net/shenxiaolu1984/article/details/51094959
code：
https://github.com/shihenw/convolutional-pose-machines-release
https://blog.csdn.net/yeahDeDiQiZhang/article/details/78131566?locationNum=1&fps=1
https://github.com/shihenw/convolutional-pose-machines-release/tree/master/testing/python