一种QuickBird卫星遥感影像的阴影重建方法

计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (17): 30-32.

一种QuickBird卫星遥感影像的阴影重建方法

郑茜颖^1,2,王钦敏²

1.福州大学物理与信息工程学院，福州 350002
2.空间数据挖掘与信息共享教育部重点实验室，福建省空间信息工程研究中心，福州 350002

收稿日期:2008-01-24 修回日期:2008-03-11 出版日期:2008-06-11 发布日期:2008-06-11
通讯作者: 郑茜颖

Shadow restoration method of QuickBird satellite remotely sensed imagery

ZHENG Qian-ying^1,2,WANG Qin-min²

1.Physical and Information Engineering Institute，Fuzhou University，Fuzhou 350002，China
2.Key Laboratory of Spatial Data Mining and Information Sharing of MOE，Spatial Information Research Center，Fuzhou 350002，China

Received:2008-01-24 Revised:2008-03-11 Online:2008-06-11 Published:2008-06-11
Contact: ZHENG Qian-ying

摘要/Abstract

摘要： 从理论上研究了遥感图像阴影产生的过程，得到了同一象素点在无阴影与有阴影时灰度值的定量关系。将分别采用直方图匹配法、线性相关修正法和Gamma 修正法得到的同一QuickBird影像阴影区图像重建结果进行对比，选择影像重建最适合的方法。再通过阴影边界区处理和图像平滑技术，提高图像平滑过渡特性。实验结果表明了该方法的有效性。

Abstract: This paper analyzes the producing process of shadows in remote sensed imagery from theoretical perspective，and derives the quantitative relationship between DN values of the same pixel respectively non-shadowed and shadowed.By comparing restoration result of shadows in the same QuickBird imagery by means of methods such as Histogram Matching，linear-correlation correction，and Gamma correction，choose the suited method.The smoothness of imagery is improved through the handling of edge areas of shadows and technology of image smoothing.Experiment shows that the proposed method is effective.

郑茜颖^1,2,王钦敏². 一种QuickBird卫星遥感影像的阴影重建方法[J]. 计算机工程与应用, 2008, 44(17): 30-32.

ZHENG Qian-ying^1,2,WANG Qin-min². Shadow restoration method of QuickBird satellite remotely sensed imagery[J]. Computer Engineering and Applications, 2008, 44(17): 30-32.