基于雷达影像的水边界自动提取方法  

Automatic Extraction of Water Boundary based on Radar Image

作　　者：蒋建平 周建红 杨彪[3] JIANG Jianpingi;ZHOU Jianhong;YANG Biao(Lower Changjiang River Bureau of Hydrological and Water Resources Survey,Hydrology Bureau of Changjiang Water Resources Commission,Nanjing 210011,China;Hydrology Bureau of Changjiang Water Resources Commission,Wuhan 430010,China;School of Earth Sciences and Engineering,Hohai University,Nanjing 211100,China)

机构地区：[1]长江水利委员会水文局长江下游水文水资源勘测局,南京210011 [2]长江水利委员会水文局,武汉430010 [3]河海大学地球科学与工程学院,南京211100

出　　处：《海洋信息》2020年第4期20-28,共9页Marine Information

摘　　要：雷达影像提取河道水边界技术基于数字图像处理和影像匹配技术,通过同步采集雷达影像、GNSS及罗经数据,并对雷达影像进行滤波去噪、几何校正、水边界提取、边界线拼接等处理,实现针对不同复杂环境下的水边界自动提取,得到完整的水边界并输出成图,可满足1:5000比例尺水边界测量的要求。The technology of extracting river water boundary from radar image is based on digital image processing and image matching technology.Through simultaneously collecting of radar image,GNSS and compass data,filtering and de-noising of radar image,geometric correction,water boundary extraction,boundary line splicing and other steps,the water boundary can be automatically extracted under different complex environment,so as to obtain the complete water boundary and output the mapping,which can meet the requirements of 1:5000 scale water boundary measurement.

关 键 词：雷达影像 GNSS 罗经 水边界 提取方法 

分 类 号：P332[天文地球—水文科学] TN957.52[水利工程—水文学及水资源]