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资源一号02C星图像水体信息提取方法

DOI: 10.6046/gtzyyg.2014.02.08, PP. 43-47

Keywords: ZY-1,02C星,水体信息提取,NDVI,NDWI,决策树

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Abstract:

针对我国西部高原湖区资源卫星遥感监测与应用需求,开展资源一号02C星(ZY-102C)图像水体信息提取方法研究。用归一化植被指数和归一化差异水体指数进行龙羊峡库区水体信息提取,并将二者结合,提出决策树水体信息提取方法。以人工解译的水体区域为参考,对水体区域的整体提取结果、细节提取结果和误提取率进行统计和对比分析。实验结果表明,NDVI法易受到薄云的影响,但受冰雪和地形的影响较小;NDWI法在冰雪、薄云和山体阴影等成像条件下会受到不同程度的影响;决策树法虽然受山体阴影等地形的影响较大,但是能有效地消除冰雪和薄云等气候环境的干扰。

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