And you can see this robot reading the letters, "TED" in this case, looking at the corners of the "T" and the "E" and then triangulating off of that, flying autonomously.
你们可以看到这个飞行机器人在读字， “TED”， 观察字母“T”和“E”角落的位置， 再应用三角测量法，实现自主飞行。