Rooftop Detection Based on 3D Line Data Using Fast Graph Search

摘要：

This paper highlights 3D building rooftop detection procedure based on 3D line data. Our approach begins with area-based stereo matching method to generate digital elevation map (DEM). Subpixel interpolation, normalized cross correlation and multi-resolution scheme are employed to generate an elaborate DEM. 3D lines are evaluated by using line fitting of DEM on 2D line coordinates of orthoimage. In order to use elevation in line fitting, the reliability of elevation is tested using self-consistency. 3D rooftop hypothesis is established by using an undirected graph, in which close cycles represent complete rooftops hypotheses. We test the proposed method with the synthetic aerial images. The experiment result shows that the extracted 3D rooftop realistically reflects real urban site model.

作者: Dong-Min Woo Dong-Chul Park

作者单位: Image Processing Lab Department of Information Engineering Myongji University, Gyeonggido, Korea 449-728

会议类型: 国际会议

会议名称: 2009 Ninth International Conference on Hybrid Intelligent Systems(第九届混合智能系统国际会议 HIS 2009)

会议地点: 沈阳

会议语种:英文

页码: 1-5

在线出版日期: 2009-08-12（万方平台首次上网日期，不代表论文的发表时间）