基于Radarsat SAR微波影像的水体提取研究  

Water Extraction in Radarsat SAR Images

作　　者：叶子伟[1] 陈小松[1] 吴敦[1] 

机构地区：[1]宁波市测绘设计研究院,浙江宁波315042

出　　处：《测绘地理信息》2016年第2期54-57,共4页Journal of Geomatics

摘　　要：利用星载SAR对天气条件较差的洪涝灾区进行监测,能及时指导抗洪救灾。利用Radarsat SAR微波影像,结合DEM和ETM+信息去除影像阴影提取水体,综合比较分析两种不同方法的优劣。Spaceborne SAR images can be employed to monitor the flooded areas under poor weather conditions,and also can be used as reference and guide to flooding relief.In this paper,we focus on Radarsat SAR microwave images,remove the image shadow and extract water by combining DEM and ETM＋,and finally make a comprehensive comparative analysis of the pros and cons of two different methods.

关 键 词：RADARSAT SAR ETM+ DEM 雷达阴影剔除 

分 类 号：P237[天文地球—摄影测量与遥感] TP722.6[天文地球—测绘科学与技术]