摘要
河流信息提取一直以来都是水利行业重要的工作内容,基于遥感技术的优势,采用高分辨率卫星影像Sentinel-2多光谱影像,进行河流信息提取,以此得到高精度的河流信息。结果表明:基于遥感分类手段的河流提取具有很高的精度,河流呈现连续状态分布,并且植被区域与其他区域分类精度较好;基于遥感反演手段的河流提取同样具有很高的精度,反演手段从光谱信息中准确识别出水域信息并反映出来,河流信息呈客观分布且未出现断流现象,即该方法在河流提取中具有较好的应用。
River information extraction has always been an important work in the water conservancy industry.Based on the advantages of remote sensing technology,high-resolution satellite sentinel-2 multispectral image is used to extract high-accuracy river information.The results show that the river extraction based on remote sensing classification method has high accuracy,the river presents continuous distribution,and the classification accuracy of vegetation area and other areas is better;The river extraction based on remote sensing inversion method also has high accuracy.The inversion method accurately identifies and reflects the water area information from the spectral information.The river information is objectively distributed and there is no cutoff phenomenon.This method has a good application in river extraction.
作者
徐娜
项超超
XU Na;XIANG Chaochao(Taizhou Geographic Information Surveying and Mapping Center Co.,Ltd.,Taizhou 318000,China)
出处
《测绘与空间地理信息》
2023年第5期120-123,共4页
Geomatics & Spatial Information Technology
关键词
Sentinel-2
河流信息
遥感分类
遥感反演
Sentinel-2
river information
remote sensing classification
remote sensing inversion
