摘要
阴影是遥感影像中普遍存在的一种现象,它的存在影响对被遮挡区域信息的获取,并且对影像的目视效果造成不好的影响。因此,对阴影的去除在遥感影像信息提取中是一个需研究的问题,特别是对于具有大量高层建筑物的特大城市区域。本文采用颜色恒常性的理论,来实现对高分辨率遥感影像上阴影的去除,利用上海市陆家嘴区域的QuickBird高分辨率影像对算法进行了实验,结果表明该方法对阴影的去除具有较好的效果,并且计算简便。
The shadow is a widespread phenomenon in remote sensing images,and it brings about serious problems to the information gathering in the occluded areas and has a harmful influence on visual effect of image.Therefore,the removal of the shadow from the images in remote sensing information extraction is a problem to be studied,especially in the large urban areas with a large number of high-rise buildings.This paper is based on the theory of color constancy to remove the shadow from high-resolution remote sensing images,and uses the algorithm to conduct experiments with high-resolution Quickbird image in the region of Lujiazui in Shanghai.The results show that this method has a good effect of eliminating the shadow and the calculation is simple.
出处
《遥感信息》
CSCD
2010年第4期13-16,111,共5页
Remote Sensing Information
基金
863项目(编号:2007AA12Z178)
"十一五"国家科技支撑计划项目"村镇信息快速采集与处理关键技术研究"课题支持(课题编号:2006BAJ09B01)
关键词
颜色恒常性
阴影检测
阴影去除
colour constancy
shadow detection
shadow removal
