作　　者： ; ;

机构地区： 泉州师范学院资源与环境科学学院

出　　处： 《齐齐哈尔大学学报（自然科学版）》 2015年第4期22-25 29,共5页

摘　　要： 针对单波段法提取水体信息,存在的人工确定阈值的难度性和提取结果的误差性,以及多波段法提取水体信息存在的地域局限性,以泉州市区ETM+遥感影像为例,在谱间关系法的基础上作进一步改进,采用决策树法分步提取水体信息的方法,首先利用研究区内的典型地物类型的辐射亮度均值作出典型地物辐射亮度响应曲线,并构建自动提取水体信息的模型,实现对研究区的水体信息提取。 It is difficult to determine the threshold by artificial based on the single-band method of water-body information extraction, and the extraction results exist some errors. In addition, the multi-band method has some geographical limitations. In view of this, this paper takes the ETM+ remote sensing images of Quanzhou city as an example, the decision-tree method of water-body information extraction has been proposed in this paper based on the relationship between multi-band spectrum, different features spectral curve of ETM+ was mapped, and the model of water-body information extraction was put forward to ensure the accuracy of the water-body information extraction, especially the small water-body.

关 键 词： 水体信息提取 辐射亮度 决策树 泉州

领　　域： [自动化与计算机技术] [自动化与计算机技术]