【摘要】 以往的遥感影像多尺度分割方法对边界特征分析运用较少,为此提出了融入边界特征的多尺度加权聚合遥感影像分割方法(edge-incorporated multi-scale image segmentation by weighted aggregation,EIMSSWA)。首先,检测影像梯度特征生成边界图;然后,在基元合并过程中计算相邻基元间公共边界的多种统计特征,并将其同基元的其他区域特征相结合,优化基元间的相似性度量,提高影像多尺度分割结果的精度;最后,通过e Cognition软件的多尺度分割、基于加权聚合的影像分割(segmentation by weighted aggregation,SWA)和EIMSSWA等3组实验来验证方法的分割精度。结果表明,EIMSSWA方法能够取得更高精度、更合理的影像分割结果。更多还原

【Abstract】 Some existing remote sensing image segmentation methods do not take the edge feature into consideration,therefore,an edge-incorporated multi-scale segmentation algorithm based on weighted aggregation( EIMSSWA) is proposed. Firstly,the edge features of adjacent primitives are generated by counting the gradient strength and gradient direction on the common edges. Secondly,these features are infused into the similarity measurement of the adjacent primitives in segmentation by weighted aggregation,so as to improve the segmentation.Finally,the segmentation of the proposed method is compared with segmentations of eCognition as well as segmentation by weighted aggregation( SWA) a. The results demonstrate that the EIMSSWA method is capable of gaining more accurate and more reasonable segmentation.更多还原