多源SAR遥感影像海上溢油业务化监测系统研究

随着海上石油运输业和海洋石油工业的迅速发展,海上溢油事故频繁发生,造成了巨大的生态和经济上的损失,因此,实时监测溢油信息对灾害防控具有重要意义。本文基于多源SAR影像数据,开展了溢油遥感监测研究,构建了基于GIS的海洋溢油业务化监测系统。系统基于GDAL对原始数据进行解析,实现影像输入和几何校正等处理;在此基础上,封装多尺度图像分割算法和灰度对比度特征提取算法,对SAR影像数据进行分块、分割、溢油识别、合并及参数赋值等自动化处理,实现溢油信息提取的一键化处理;面向溢油监测应用需求,制作各类标准化产品,自动添加制图整饰要素、影像参数、溢油面积和溢油源等各类信息,并实时生成专题快报。

Research on Marine Oil Spill Monitoring System Based on Spaceborne SAR Images

A series of oil spill accidents have occurred frequently with the development of petroleum industry and marine oil transportation,which have caused great ecological and economic losses.Therefore,it is meaningful for monitoring the oil spill information in real time to prevent oil spill disasters.Based on the multi-source Synthetic Aperture Radar(SAR)image data,this paper researched on the remote sensing monitoring of oil spill,and developed the operational monitoring system of marine oil spill based on Geographic Information System(GIS).In order to realize the rapid processing of multi-source image data integration,the original data is analyzed based on Geospatial Data Abstraction Library(GDAL) and the images are input and corrected; the algorithm of multi-scale image segmentation and gray contrast characteristic extraction are encapsulated on the basis of the previous step,which achieve automatic processing of SAR image block,segmentation,oil spill identification,merging,parameter assignment,and etc,the one-key processing of oil spill extraction is realized.For the application demand of oil spill monitoring,the system can support the production of various kinds of standardized products,automatically add the elements of cartographic decoration elements,image parameters,oil spill area,the source of oil spill and other kinds of information,and real-time generate thematic reports.