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-  2008 

面向对象的高空间分辨率遥感影像道路信息的提取

Keywords: 影像分割,面向对象,高分辨率影像,道路

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Abstract:

摘要: 遥感影像的道路信息提取是构建及更新地理空间数据库的一个重要组成部分。针对高空间分辨率遥感影像丰富的地物细节信息和突出的结构、纹理信息的特点,采用一种面向对象技术,实现了高空间分辨率影像道路信息提取。首先,利用面向对象的影像分割技术得到道路均值对象,然后挖掘高空间分辨率遥感影像中描述道路的光谱特征、几何特征及纹理特征,构建道路对象的知识库,实现了城郊重要道路信息的提取。与最大似然法相比,提取结果充分利用道路形状和纹理信息,能克服光谱特征的噪声现象,提取道路准确率高,为高空间分辨率遥感影像道路信息提取提供了一种新的途径。

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