摘要
首先介绍了遥感影像中线状目标骨架自动提取的意义和研究现状,然后结合老的GIS数据,提出了一种算法来实现遥感影像中线状目标骨架的自动提取,算法主要包括影像预处理、GIS数据与影像的配准、骨架跟踪、编组连接与数据简化等步骤。最后又利用遥感影像和相应的GIS数据进行了实验,实验证明了算法的可行性和有效性。
This paper first introduces the significance and presents research situation of automatic extracting linear object from remote sensing image. Then, an approach of automatic extracting linear object from remote sensing image is proposed, which considers old GIS data. The approach includes image preprocessing, image and GIS data matching, skeleton tracking, lines grouping and data simplifing. Finally remote sensing image and its old GIS data are experimented. Results of the experiment show that this approach is feasible and effective.
出处
《测绘学院学报》
北大核心
2004年第4期275-278,共4页
Journal of Institute of Surveying and Mapping
关键词
遥感影像
GIS
特征提取
边缘检测
骨架跟踪
remote sensing image
GIS
feature extraction
edge detection
skeleton tracking
