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
Key words
edge information/simple linear iterative clustering/A* algorithm/mosaic line extraction
维普
万方数据