【摘要】 以WorldView-2卫星影像的RGBN 4个波段数据为数据源,针对武汉市沙湖区域分别采用单波段阈值法、归一化水体指数法(NDWI)和面向对象分类法对实验区内水体信息进行提取,并对3种方法所提取的结果进行比较分析,以此探讨适用于本实验区水体提取的方法,并推广至其他区域。本文为基于遥感影像的水体提取提供一定参考。更多还原

【Abstract】 In this paper,the four bands( RGBN) dates from World View-2 satellite imagery are used as data sources,the single-band threshold,Normalized Difference Water Index( NDWI) and Object-oriented Classification are applied to the water extraction of the Shahu area in Wuhan. Then we compared and analyzed the results of the three methods,and explored the better method applicable to the water extraction of this experimental area,so we can extend it to other regions. It provided a reference for the water extraction method based on remote sensing image.更多还原