遥感图像薄云滤波增强  

Remote Sensing Image Enhancement Using Filtering Methods with Thin Cloud Cover

作　　者：张鹏强[1] 余旭初[1] 韩丽[2] 

机构地区：[1]解放军信息工程大学测绘学院,河南郑州450052 [2]解放军信息工程大学电子技术学院,河南郑州450004

出　　处：《海洋测绘》2008年第2期13-16,共4页Hydrographic Surveying and Charting

基　　金：国家863计划项目(2006AA701309)

摘　　要：针对遥感图像地学应用中的云层覆盖问题,首先介绍了遥感图像去云处理的一般方法,然后重点研究了薄云覆盖图像的滤波增强技术和实现方法。在阐述传统的同态滤波算法的基础上,将高频增强滤波算法引入薄云区遥感图像增强处理中。试验表明,这两种方法均可取得良好的增强效果。With using remote sensing images for geo-science applications, there occur images covered by cloud. In this article methods for removing the cloud from remote sensing images are presented firstly, then techniques and implement methods for enhancing remote sensing images covered by thin cloud are studied. After expatiating the homomorphic filtering algorithm, the high-frequency emphasis filtering algorithm is introduced to image enhancement program which covered by thin cloud. The tests indicate that the two methods can acquire good effects uniformly.

关 键 词：遥感图像 云层覆盖 图像增强 频域滤波 

分 类 号：P231.1[天文地球—摄影测量与遥感]