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基于分水岭算法的高分遥感图像道路提取优化方法

DOI: 10.6046/gtzyyg.2013.03.05, PP. 25-29

Keywords: 道路提取,高分辨率遥感图像,分水岭,面向对象方法,数学形态学

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Abstract:

针对高分辨率遥感图像城市道路提取中存在的问题,在面向对象方法和数学形态学等理论基础上,提出了一种基于改进的分水岭分割算法的道路提取方法。在图像预处理基础上,首先使用改进的分水岭算法分割影像,提取基本的道路信息;然后利用面向对象方法提取道路基元,完善道路信息;最后将道路信息二值化,并采用数学形态学等方法进行优化,去除和修补不完善的道路。结果表明,该方法能有效地提取出城市地区的道路信息,对较复杂的道路环境也有较好的效果。

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