According to the characteristics of radar image, a method of image segmentation is suggested by performing threshold processing directly afteredge detection instead of close curves.
根据雷达图像的特点提出边缘检测后不做曲线闭合，而直接进行阈值处理的图像分割。
2
After making a stop for a few hours at a British station on the edge of Antarctica, the two workers were flown to the southernmost Chilean city of Punta Arenas.
在南极洲边缘的一个英国站停留了几个小时后，这两名工人坐飞机到了智利最南端的城市，蓬塔阿雷纳斯。
3
At the edge of darkness, after about eight hours, I turned around and saw the Earth from our altitude at Hubble, 568 kilometers up.