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| 环境一号卫星高光谱数据水体信息提取方法 | |
| 引用本文： | 贾德伟,钟仕全,李雪,彭波.环境一号卫星高光谱数据水体信息提取方法[J].测绘科学,2011,36(4):128-130. |
| 作者姓名： | 贾德伟 钟仕全 李雪 彭波 |
| 作者单位： | 1. 广西师范学院资源与环境科学学院,南宁53000l 2. 广西区气象减灾研究所,南宁530022;国家卫星气象中心遥感应用试验基地,南宁530022 3. 南京信息工程大学遥感学院,南京,210044 |
| 基金项目： | 广西科学研究与技术开发计划项目 |
| 摘 要： | 环境一号卫星A星上的超光谱成像光谱仪(HSI)是中国第一个高光谱成像光谱仪.为充分利用HSI数据的高光谱特性,本文以2009年10月5日的影像为研究区,得到HSI数据影像反射率,分析水体等地类光谱特征差异及选择各地类敏感波段；利用传统指数NDVI和NDWI,构建新的基于指数的水体指数IWI,试验得出,IWI指数增加了各... |
| 关 键 词： | 环境一号卫星 tHSI数据 水体信息 NDWI IWI |
Extracting water information from the HSI data of HJ-1A/1B satellite |
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| JIA De-wei,ZHONG Shi-quan,LI Xue,PENG Bo.Extracting water information from the HSI data of HJ-1A/1B satellite[J].Science of Surveying and Mapping,2011,36(4):128-130. | |
| Authors: | JIA De-wei ZHONG Shi-quan LI Xue PENG Bo |
| Institution: | ①(①School of Resources and Environment Sciences,GuangXi Normal University,Nanning 530001,China;②GuangXi Meteorological Disaster Mitigation Institute,Nanning 530022,China;③Remote Sensing Application and Experiment Station of National Satellite Meteorological Center,Nanning 530022,China;④School of Remote Sensing,Nanjing University of Information Science and Technology,Nanjing 210044,China) |
| Abstract: | HSI sensor of HJ-1A is the first Hyperspectral image in china.In order to use the high spectral property of HSI data,the HSI data of GuangXi on Oct 5,2009 was taken as research area in the paper.The reflectance value of HSI imagery which is very useful and important for the next quantitative analysis of Remote Sensing was got.At the same time,the difference between water and other land types was analyzed and the sensitive bands of the typical land types were selected.In the experiment,the index of IWI which was builded based on the indexes of NDVI and NDWI enhanced the dynamic range of different water types and enriched water information.The comparative results showed that the accuracy based on IWI had the precision that was reflected by 10.91% higher accuracy of water information,0.09 higher kappa coefficient and 4% higher overall accuracy. |
| Keywords: | HJ-1A /1B satellite HSI data water information NDWI IWI |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |