文档介绍：基于城市航空立体像对的全自动三维建筑物建模收稿日期:2001-07-DD;截稿日期:2001-MM-DD
作者简介:陈爱军(1972-),男(汉族),山西五寨人,清华大学计算机科学与技术系博士后,2000年7月毕业于北京大学遥感与GIS研究所,在国内外会议刊物上已发表论文20多篇。主要研究方向为立体视觉建模、空间信息网络共享与存取、数字城市、数字地球。
陈爱军,徐光祐,史元春
(清华大学计算机科学与技术系北京 100084)
Automated 3D Building Modeling Based on Urban Aerial Stereo
CHEN Ai-jun, XU Guang-you, SHI Yuan-chun
(Department puter Science and Technology, Tsinghua University, 100084)
Abstract: Urban 3D building modeling is one of key technology of virtual city. In this paper, an approach to tackle the problem of 3D building modeling from urban high-resolution aerial image is presented. Automatic 2D building detection technique and 3D height extraction technique has been applied to the test image (stereo) completely. bination between them is carried out, using the result of pyramidal stereo matching and the linear elements from 2D detection, the matching information from the matched point is assigned to the point of the linear element which corresponds to the matched point, so 3D modeling of building is achieved. In addition, more accurate 3D height information is obtained by applying new control strategies to prevent blunder propagation in pyramidal matching which based on the modified ALSC algorithm.
Key words: Virtual City, 2D Building Detection, Stereo Matching, Adaptive Least Square Correlation
摘要:城市建筑物三维建模是虚拟城市建设的关键技术之一。本文基于大比例尺航空立体像对提出三维建筑物建模方法。首先对二维边缘检测Canny算子进