其次，利用形态学运算，对已除去噪声的二值SAR图像进行边缘提取，并对边缘图像进行形态学区域开运算，以去除较小的区域。
Secondly, the binary SAR image is processed by using morphological operations to extract edges of the object and remove smaller areas. Then lines are extracted by Hough transform.
针对超速车辆抓拍图像的特点，以数学形态学为理论基础，进行边缘检测区域选取。
According to the characteristics of vehicle image speeding, with tapes of mathematical morphology based on edge detection, regional selection.
她说，“灾难中人们以许多不同的方式丧命，他们在地狱的边缘仍是这种形态。”
People were killed in so many different ways during the disaster and they were left like that in limbo.
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