https://charmve.github.io/computer-vision-in-action/#/3_%E8%BF%9B%E9%98%B6%E7%AF%87/chapter12-%E7%94%9F%E6%88%90%E5%AF%B9%E6%8A%97%E6%A8%A1%E5%9E%8B/chapter12_4-%E5%8F%98%E5%88%86%E8%87%AA%E7%BC%96%E7%A0%81%E5%99%A8VAE Description
