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基于面向对象的高分遥感景观格局提取方法

DOI: 10.6046/gtzyyg.2014.04.08, PP. 46-50

Keywords: 景观格局,面向对象图像分析,多尺度,高分辨率遥感图像

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Abstract:

为了实现对景观连续变化特征与连接特征的描述,并保持与斑块镶嵌特征的空间尺度一致性,该文利用高分辨率遥感数据,采用面向对象分割方法,建立基于Delaunay-Voronoi原理的景观格局定量描述模型,统一表达景观格局的镶嵌、连续以及连接特征;并将此图像分割方法的结果与像素聚合方法的结果进行对比。结果表明:1面向对象的图像分割方法能够更好地保存对景观格局提取至关重要的微细景观特征,并在尺度上推过程中延缓这些细微特征消失;2基于Delaunay-Voronoi数据结构的景观格局模型有利于面向对象影像分析的景观镶嵌、连续和连接特征的混合及其多尺度表达,更适用于高分辨率遥感景观格局信息提取。

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