非线性模型岛礁礁盘遥感水深反演  

Research on reefs bathymetry estimation by remote sensing based on nonlinear model

作　　者：盛琳[1,2] 王双亭[1] 周高伟[3,2] 白洁 李英成[3,2] 

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454000 [2]中测新图(北京)遥感技术有限责任公司,北京100039 [3]中国测绘科学研究院,北京100039

出　　处：《测绘科学》2015年第10期43-47,共5页Science of Surveying and Mapping

基　　金：国家科技支撑计划项目(2012BAB16B01)

摘　　要：针对已有的遥感水深反演方法波段选取难,得不到较好的模型参数的问题,该文在国内外遥感水深反演研究的基础上,对经典的非线性模型进行研究,引入了逐步回归算法对模型进行了改进。以东岛为研究区,基于Worldview-2多光谱影像进行模型验证和精度评价。结果表明：应用改进后模型的反演水深精度大幅提高,水深范围不但适用在10m以浅的水区,在15~30m的区域精度也较高。由此可见改进的模型在保持原模型移植性较好的前提下,模型参数更易解算,反演精度较高,具有一定的适用性。Aiming at the problem that exsiting bathymetry inversion by remote sensing technology has difficulties of band selection and the best model parameters, on the basis of bathymetry inversion by re- mote sensing research at home and abroad, the classical nonlinear model was studied and stepwise regres- sion algorithm was introduced to improve the origin model. East Island was selected as study area, the data of water depth around East Island were used to verify the model and evaluate the accuracy of bathymetry estimation from Worldview-2 multispectral images. The results showed that using the improved model, the accuracy of estimated bathymetry was greatly improved not only in the shallow water area but also in 15-30 meters region. Thus, under the premise of keeping the original model transplanted, the improved model was not only much easier to solve the model parameters, but also had higher estimation precision and cer- tain applicability.

关 键 词：遥感水深反演 非线性反演模型 逐步回归算法 高分辨率影像 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]