融合边缘优化SLIC和A*算法的影像镶嵌线提取  

Image Mosaic Line Extraction by Fusion of Edge Optimization of SILC and A*Algorithm

作　　者：常巧梅 张浩 张娟 CHANG Qiaomei;ZHANG hao;ZHANG Juan(Shanxi Engineering Vocational School,Taiyuan 030032,China;Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,Beijing 100094,China;Shanxi Yatai Digital Remote Sensing,Taiyuan 030032,China)

机构地区：[1]山西工程职业学院,太原030032 [2]中国科学遥感与数字地球研究所,北京100094 [3]山西亚太遥感新技术有限公司,太原030032

出　　处：《遥感信息》2024年第3期90-96,共7页Remote Sensing Information

基　　金：国家自然科学基金(41771397)。

摘　　要：针对遥感影像自动提取镶嵌线穿过独立地物损害地物完整性的问题,提出融合边缘信息优化SLIC和A*算法的影像镶嵌线提取方法。首先,提取影像边缘信息,并将边缘强度因子与影像光谱信息融合;然后,使用优化的简单线性迭代聚类方法对重叠区域影像进行超像素分割,获取地物完整的超像素,并利用数学形态学算子去除孤立噪声与不完整边界;最后,采用曼哈顿距离启发函数提升A*算法的镶嵌线提取效率,获取最优的镶嵌线提取。分析结果表明,该方法可有效提取影像镶嵌线,避免镶嵌线通过独立建筑物,满足后期正射影像制作要求。In order to solve the problem of automatic extraction of remote sensing image mosaic lines which pass through independent features and damage the integrity of features,an image mosaic line extraction method combining edge information optimization SLIC and A*algorithm is proposed.First,the edge information is extracted and the edge intensity factor is fused with the spectral information.Then,an optimized simple linear iterative cluster is used to implement superpixel segmentation to obtain complete superpixels of ground objects,and mathematical morphology operators are used to remove isolated noises and incomplete boundaries.Finally,Manhattan distance heuristic function is used to improve the efficiency of mosaic line extraction of A*algorithm,which obtains the optimal mosaic line extraction.The experimental comparison and analysis of remote sensing images show that the proposed method can effectively extract mosaic lines,avoid mosaic lines passing through independent buildings,and meet the requirements of later orthophoto production.

关 键 词：边缘信息 简单线性迭代聚类 A*算法 镶嵌线提取 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]