Automated updating of road databases from aerial images

被引:10
作者
Baltsavias, E [1 ]
Zhang, CS [1 ]
机构
[1] ETH Honggerberg, Inst Geodesy & Photogrammetry, Swiss Fed Inst Technol, CH-8093 Zurich, Switzerland
来源
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION | 2005年 / 6卷 / 3-4期
关键词
roads; 3-D reconstruction; map updating; knowledge-based image analysis; color; context; edge matching; DSM/DTM; roadmarks; multiple cue integration; performance evaluation; semi-automated system;
D O I
10.1016/j.jag.2004.11.002
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
This paper presents a practical system for automated 3-D road network reconstruction from aerial images using knowledge-based image analysis. The system integrates processing of color image data and information from digital spatial databases, extracts and fuses multiple object cues, takes into account context information, employs existing knowledge, rules and models, and treats each road subclass accordingly. The key of the system is the use of knowledge as much as possible to increase success rate and reliability of the results, working in 2-D images and 3-D object space, and use of 2-D and 3-D interaction when needed. Another advantage of the developed system is that it can correctly and reliably handle problematic areas caused by shadows and occlusions. This work is part of a project to improve and update the 1:25,000 vector maps of Switzerland. The system was originally developed to processed stereo images. Recently, it has been modified to work also with single orthoimages. The system has been implemented as a stand-alone software package, and has been tested on a large number of images with different landscape. In this paper, various parts of the developed system are discussed, and the results of our system in the tests conducted independently by our project partner in Switzerland, and the test results with orthoimages in a test site in The Netherlands are presented together with the system performance evaluation. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:199 / 213
页数:15
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