应用形态学算子检测SAR图像中的湍流航迹

在条件合适的情况下，利用天基和航空ＳＡＲ（Ｓｙｎｔｈｅｔｉｃ Ａｐｅｒｔｕｒｅ Ｒａｄａｒ）可以观察到海上航行的船舶及其航迹。在ＳＡＲ图像是观察到的航迹有好几种，其中，湍流航迹是在所有航迹特征中出现的概率最大的一种，它一般是以暗的线的形式出现的，针对这一特点我们提出运用形态学处子来检测ＳＡＲ图像是的湍流航迹。运用形态学的方法有它自己的优势：可以有效抑制斑点噪声，可以检测在于一室长度的航迹特征，而不

APPLY MORPHOLOGICAL OPERATORS TO DETECT TURBULENT SHIP WAKES IN SAR IMAGERY

Under the correct condition,we can observe the ship and shipwakes in satelliteborn or airborn SAR imagery.The shipwakes observed by us can be divided into several kinds.However,turbulent shipwake which presents as dark line in SAR imagey is observed the most frequencily in all kinds of shipwakes.So we develope morphological operators to detect turbulent shipwake.There are some advantages such as:it can suppress the speckle noise;it can be used to detect the shipwakes which are longer than defined length and it is impossible that the weak targets can not be detected because of strong ones;it is easy to implement parallel computer.We have applied the method for many ERS 2 images.The result tell us that it is a good method introducing morphological operators to detect turbulent shipwake.