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以无锡市作为研究区域,采用2000年Landsat ETM+影像数据,通过对居民地的遥感机理分析,利用植被指数、水体指数、城镇指数相结合的方法提取居民地信息。分析遥感影像的谱间结构特征,通过试验,建立二值逻辑运算式,得到居民地遥感信息提取结果。并用该方法在不同时相不同地区的Landsat TM/ETM+影像上进行了进一步的验证。研究结果表明:该方法可以将居民地信息提取出来,并且效果较好。
Taking Wuxi as the research area, 2000 Landsat ETM + image data was used to analyze the remote sensing mechanism of residential areas, and the information of residential areas was extracted by using the combination of vegetation index, water index and urban index. By analyzing the spectrum structure characteristics of remote sensing images, a binary logical operation formula is established through experiments to obtain the remote sensing information extraction results of residential areas. This method was used to further validate Landsat TM / ETM images in different regions of different phases. The results show that this method can extract the information of residents, and the effect is better.