And then, using output from those algorithms, you have even more specialized algorithms for interpreting things like user facial expression and hand gestures.

然后，使用这些算法的输出，你有更专业的算法来解释用户面部表情和手势等事物。

Regardless of what algorithm was used, once we've isolated a face in a photo, we can apply more specialized computer vision algorithms to pinpoint facial landmarks, like the tip of the nose and corners of the mouth.

不管使用什么算法，一旦我们在照片中分离出一张脸，我们就可以应用更专业的计算机视觉算法来精确定位面部特征，比如鼻尖和嘴角。