本文针对高分辨率SAR影像进行城区河流、道路提取的算法研究，提出将纹理、面状和空间区域三种特征结合的方法。
This article mainly researches on the algorithm of extracting rivers and roads in high resolution SAR images, using the method of combining texture, area, and space structure features.
但当我看到沿着城区流过的河流时，我感到很惋惜，想了很多。
But when we saw the rivers along our city, I felt very sorry, and thoughit a lot.
当飞机降临贵阳机场时，透过舷窗，您可以看到，一条闪亮的河流蜿蜒穿过贵阳市的南部城区。
When a plane is to land at the Guiyang airport, through the window, one can see a sparkling river wriggling across the southern area of Guiyang.
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