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本文从长江中游航道藕池口水道陆域地物提取的应用案例出发,通过对高分卫星影像处理,探索在大面积水域和洲滩等少特征困难地区的遥感测绘技术,获取航道陆域地形测绘成果,验证了利用高分卫星影像制作满足航空摄影规范的1:5000航测成图的有效性,并形成基于卫星遥感影像的长江航道陆域地形提取的工艺流程。
This paper starts from the application cases of land feature extraction from Ouchi Koukou Channel in the middle reaches of the Yangtze River. By means of high-resolution satellite image processing and exploration of remote sensing mapping technology in areas with less characteristic such as large area waters and islets, As a result, the validity of the 1: 5000 aerial mapping made by using high-resolution satellite images to validate aerial photogrammetry was verified, and the process of terrain extraction of the Yangtze River waterway based on satellite remote sensing images was formed.