【Key words】 urban built up land； remote sensing information extraction； data dimension compression；
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geological remote sensing information extraction 遥感地质信息提取
Remote Sensing Image-Based Information Extraction 基于遥感图像的垦利县盐碱退化土地信息提取及其演化规律研究
This method can provide a reference of remote sensing information extraction of wetland for other regions with mixed spectral characteristics.
该方法可为其他光谱特征混杂地区湿地遥感信息的提取提供参考。
The edge extraction of the remote sensing image of high resolution is the important research area of city remote sensing information extraction.
高分辨率遥感图像的边缘提取是当前城市遥感的重要研究领域。
Mineral alteration data are extracted and spatial distribution features of altered rocks are acquired by remote sensing information extraction ways.
通过遥感数据提取矿化蚀变信息，获取蚀变岩的空间分布特征，一直是遥感找矿工作的重要研究内容。
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