国土资源遥感Issue(3)：52-58,7.DOI:10.6046/gtzyyg.2015.03.10
高分辨率遥感影像的建筑物轮廓信息提取方法
Extraction of building contour from high resolution images
摘要
Abstract
Since the building profile obtained by segmentation or other methods has the disadvantages of inaccuracy or irregularity, this paper presents a new approach to extract the outlines of buildings: Firstly, images are preprocessed by combining spectral characteristics and multi - angle texture characteristics obtained by one dimensional Gabor filter of images to form characteristics to be segmented. On the basis of the construction of graph by Gaussian mixture model, the candidate points of the building can be determined by graph cuts, and the building blob can be obtained by mathematical morphology. Then according to segmentation objects, the main direction of the building is detected by the Radon transform, the least square matching templates are created, and the corner points are extracted precisely in the outline buffer zone. Finally, the accurate corner points are connected to constitute the outlines of the building. This method was tested by using synthetic image and high resolution images. The experimental result proves that this method is feasible.关键词
最小二乘模板匹配/高分辨率影像/建筑物轮廓/图割/影像分割Key words
least square template matching/high resolution image/building contour/graph cuts/image segmenta-tion分类
信息技术与安全科学引用本文复制引用
周绍光,孙金彦,凡莉,向晶,陈超..高分辨率遥感影像的建筑物轮廓信息提取方法[J].国土资源遥感,2015,(3):52-58,7.基金项目
国家自然科学基金项目“高分辨率遥感影像中城市道路网的提取方法研究”(编号:41271420/D010702)资助。 （编号:41271420/D010702）
