| 遥感影像反立体纠正方法研究 |
| |
| 引用本文： | 周爱霞,高连峰.遥感影像反立体纠正方法研究[J].国土资源遥感,2007,18(2):20-22. |
| |
| 作者姓名： | 周爱霞 高连峰 |
| |
| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,南京,210098
2. 解放军理工大学指挥自动化学院,南京,210007 |
| |
| 摘 要： | 以四川省广元市某区遥感影像为例，尝试了一种基于DEM和IHS变换的遥感影像反立体纠正方法。该方法首先对IHS变换得到的亮度分量I进行滤波处理，将反映地物反射率差异的亮度信息与地形因子信息分离，然后用DEM制作的地形阴影图替换原图像中的地形因子信息，最后进行IHS反变换。试验结果表明，该方法能有效纠正遥感图像上的反立体现象，并基本保持与原图像色彩一致。
|
| 关 键 词： | 反立体 遥感影像 DEM IHS变换 |
| 文章编号： | 1001-070X（2007）02-0020-03 |
| 收稿时间： | 2006-07-25 |
| 修稿时间： | 2006-07-252006-10-17 |
A STUDY OF THE METHOD TO RECTIFY THE FALSE TOPOGRAPHIC PHENOMENON |
| |
| ZHOU Ai-xia,GAO Lian-feng.A STUDY OF THE METHOD TO RECTIFY THE FALSE TOPOGRAPHIC PHENOMENON[J].Remote Sensing for Land & Resources,2007,18(2):20-22. |
| |
| Authors: | ZHOU Ai-xia GAO Lian-feng |
| |
| Institution: | 1. State Key Laboratory of Hydrology - Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China; 2. Academy of Command Automation, PLA University of Science and Technology, Nanjing 210007, China |
| |
| Abstract: | The false topographic phenomenon is a common phenomenon existing in the remote-sensing images obtained by sun-synchronous satellites,which brings great trouble to image users.In order to remove the false topographic phenomenon of the remote-sensing images,this paper put forward a method based on DEM data and IHS transformation and made a case study of the image of Guanyuan City in Sichuan Province.By low-pass filtering of the intensity image obtained by IHS transformation,the reflectivity information(IR) was extracted from the intensity image.By adding IR to shade relief image(SR),which was produced by DEM,a new intensity image(Inew) was obtained.A back IHS transformation was done to acquire corrected RGB image after replacing the old intensity image by the new intensity image(Inew).The experimental results indicate that the method can remove the false topography effectively and preserve the primary color. |
| |
| Keywords: | False topographic phenomenon Remote sensing image DEM IHS transformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《国土资源遥感》浏览原始摘要信息 |
| 点击此处可从《国土资源遥感》下载免费的PDF全文 |
