期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B3b
页码：393-398
出版社：Copernicus Publications
摘要：This article presents a new approach for image segmentation applied to urban imagery. Re-segmentation is so called because it uses a previous over-segmented image as input to generate a new set of objects more adequate to the application of interest. Concerning urban objects such as roofs, building and roads, the algorithm tries to generate rectangular objects by merging operations in a weighted Region Adjacency Graph. Objects whose union generate larger regular objects are merged, otherwise remain unmerged for further analysis. To verify the potential of the method, two experimental results using Quickbird images are presented
