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- 2005

一种以FCD模型从SPOT影像提取植被覆盖率的方法

汪小钦, 陈星,江洪

Keywords: 植被覆盖率,FCD模型,SPOT影像

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Abstract:

摘要：论及以FCD模型原理提取植被覆盖率的方法;同时,针对SPOT影像的波段特征,重新构造了相关指数:植被指数(VI)、裸土指数(BI)和阴影指数(SI),并在ERDAS软件系统上对该方法进行了实验。然后,通过野外实地考察,应用 GPS、数码相机等进行实地采点,并对该方法得出的结果进行了验证。结果表明,总体精度达到了80％以上,说明该方法具有较高的提取精度,能满足大中尺度的植被覆盖率调查要求。

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