If you have problems with your teeth, you may need to go to a good orthodontist who actually understands what proper bite alignment looks like.

如果你的牙齿有问题，你可能需要去找一位真正了解正确牙齿排列的好正畸医生。

To accomplish this, previous works often required a combination of proper alignment of the face, multiple photographs and dense correspondences, which is a fancy name for additional data that identifies the same regions across these photographs.

为了实现这个目标，以前通常需要面部高度对称、多张照片以及照片密集对应，对于分辨这些照片相同区域的附加数据来说，密集对应是一个奇特的名字。