摘要
在基于结构线一侧灰度统计法进行阴影检测的基础上,结合了灰度约束、几何约束、上下文约束和其他辅助信息,提出了一种多重约束下的建筑物阴影提取方法,实现了对建筑物阴影的提取,并利用IKONOS影像和航空像片进行了试验,证明该算法是有效而稳健的。
This paper proposes an approach for automatic extracting shadows of building from remote sensing image on the basis of the method that gray statistics is done in one side of the structure lines to detect shadows. The approach, which combines constraints of gray, geometry and context, and others assistant information, realizes the shadow extraction of buildings. Finally the image of IKONOS and aerial photograph are experimented to extract shadows of building. Results of the experiment show that this approach is effective and robust.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2005年第12期1059-1062,共4页
Geomatics and Information Science of Wuhan University
基金
总装备部武器装备十五预选研究基金资助项目
关键词
阴影提取
建筑物
多重约束
边缘检测
shadow extraction
building
multiple constraints
edge detection
