海洋测绘Issue(4)：61-65,5.DOI:10.3969/j.issn.1671-3044.2025.04.012
利用珠海一号高光谱影像水深反演的可行性研究
Feasibility study of retrieving bathymetry using Zhuhai-1 hyperspectral image
沈蔚 1李鑫 1王家琦 2李博遥 1吴忠强3
作者信息
- 1. 上海海洋大学,上海 201306
- 2. 山东智洋创新科技股份有限公司,山东济南 250101
- 3. 海南师范大学信息科学与技术学院,海南海口 571158
- 折叠
摘要
Abstract
With the development of domestic hyperspectral satellite remote sensing,it is of great significance to verify the capability and feasibility of bathymetry retrieval for its further application.Aim at the hyperspectral image of Zhuhai-1,a semi-theoretical and semi-empirical model,random forest model and support vector machine regression model were constructed,and combined with the multi-beam measured bathymetry of Shenzhen Yantian Port,the bathymetry inversion capability was evaluated.The same time the inversion results of GF-1 multispectral image were compared and analyzed.The experimental results show that the Zhuhai-1 hyperspectral image can invere shallow bathymetry with high quality,and the inversion accuracy of more than two bands is better.The multi-band model and the random forest model performed well on hyperspectral images.The Root Mean Square Error and Mean Relative Error of the inversion results reached 0.819 m,0.109 and 0.804 m,0.135 respectively,and the accuracy was significantly better than that of the domestic GF-1 multispectral image data using the same model.The research methods and results in this paper provide some technical support for the application of bathymetry inversion with Zhuhai-1 hyperspectral image.关键词
海洋遥感/高光谱影像/水深反演/半理论半经验模型/随机森林模型/珠海一号Key words
ocean remote sensing/hyperspectral image/bathymetry inversion/semi-theoretical and semi-empirical model/random forest model/Zhuhai-1分类
天文与地球科学引用本文复制引用
沈蔚,李鑫,王家琦,李博遥,吴忠强..利用珠海一号高光谱影像水深反演的可行性研究[J].海洋测绘,2025,(4):61-65,5.
